gabriel della-monica
mbed library sources
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mbed-src
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mbed official
Revision 439:c4382fcbbaed, committed 2014-12-15
- Comitter:
- mbed_official
- Date:
- Mon Dec 15 09:30:07 2014 +0000
- Parent:
- 438:5de36ba1188c
- Child:
- 440:8a0b45cd594f
- Commit message:
- Synchronized with git revision 6172cbea1a558a9a2ebbd965e77f83a9ceeec670
Full URL: https://github.com/mbedmicro/mbed/commit/6172cbea1a558a9a2ebbd965e77f83a9ceeec670/
Targets: DISCO_L053C8 - update from nucleo latest changes
Changed in this revision
--- a/targets/cmsis/TARGET_STM/TARGET_STM32L0/TARGET_DISCO_L053C8/TOOLCHAIN_ARM_MICRO/startup_stm32l053xx.s Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32L0/TARGET_DISCO_L053C8/TOOLCHAIN_ARM_MICRO/startup_stm32l053xx.s Mon Dec 15 09:30:07 2014 +0000
@@ -12,9 +12,9 @@
;* calls main()).
;* After Reset the Cortex-M0+ processor is in Thread mode,
;* priority is Privileged, and the Stack is set to Main.
-;* <<< Use Configuration Wizard in Context Menu >>>
+;* <<< Use Configuration Wizard in Context Menu >>>
;*******************************************************************************
-;*
+;*
;* Redistribution and use in source and binary forms, with or without modification,
;* are permitted provided that the following conditions are met:
;* 1. Redistributions of source code must retain the above copyright notice,
@@ -48,20 +48,25 @@
Stack_Size EQU 0x00000400
AREA STACK, NOINIT, READWRITE, ALIGN=3
+ EXPORT __initial_sp
+
Stack_Mem SPACE Stack_Size
-__initial_sp
+__initial_sp EQU 0x20002000 ; Top of RAM
; <h> Heap Configuration
; <o> Heap Size (in Bytes) <0x0-0xFFFFFFFF:8>
; </h>
-Heap_Size EQU 0x00000200
+Heap_Size EQU 0x00000400
AREA HEAP, NOINIT, READWRITE, ALIGN=3
+ EXPORT __heap_base
+ EXPORT __heap_limit
+
__heap_base
Heap_Mem SPACE Heap_Size
-__heap_limit
+__heap_limit EQU (__initial_sp - Stack_Size)
PRESERVE8
THUMB
@@ -103,7 +108,7 @@
DCD DMA1_Channel1_IRQHandler ; DMA1 Channel 1
DCD DMA1_Channel2_3_IRQHandler ; DMA1 Channel 2 and Channel 3
DCD DMA1_Channel4_5_6_7_IRQHandler ; DMA1 Channel 4, Channel 5, Channel 6 and Channel 7
- DCD ADC1_COMP_IRQHandler ; ADC1, COMP1 and COMP2
+ DCD ADC1_COMP_IRQHandler ; ADC1, COMP1 and COMP2
DCD LPTIM1_IRQHandler ; LPTIM1
DCD 0 ; Reserved
DCD TIM2_IRQHandler ; TIM2
@@ -123,7 +128,7 @@
DCD RNG_LPUART1_IRQHandler ; RNG and LPUART1
DCD LCD_IRQHandler ; LCD
DCD USB_IRQHandler ; USB
-
+
__Vectors_End
__Vectors_Size EQU __Vectors_End - __Vectors
@@ -134,7 +139,7 @@
Reset_Handler PROC
EXPORT Reset_Handler [WEAK]
IMPORT __main
- IMPORT SystemInit
+ IMPORT SystemInit
LDR R0, =SystemInit
BLX R0
LDR R0, =__main
@@ -213,7 +218,7 @@
DMA1_Channel1_IRQHandler
DMA1_Channel2_3_IRQHandler
DMA1_Channel4_5_6_7_IRQHandler
-ADC1_COMP_IRQHandler
+ADC1_COMP_IRQHandler
LPTIM1_IRQHandler
TIM2_IRQHandler
TIM6_DAC_IRQHandler
@@ -234,33 +239,4 @@
ENDP
ALIGN
-
-;*******************************************************************************
-; User Stack and Heap initialization
-;*******************************************************************************
- IF :DEF:__MICROLIB
-
- EXPORT __initial_sp
- EXPORT __heap_base
- EXPORT __heap_limit
-
- ELSE
-
- IMPORT __use_two_region_memory
- EXPORT __user_initial_stackheap
-
-__user_initial_stackheap
-
- LDR R0, = Heap_Mem
- LDR R1, =(Stack_Mem + Stack_Size)
- LDR R2, = (Heap_Mem + Heap_Size)
- LDR R3, = Stack_Mem
- BX LR
-
- ALIGN
-
- ENDIF
-
- END
-
-;************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE*****
+ END
--- a/targets/cmsis/TARGET_STM/TARGET_STM32L0/TARGET_DISCO_L053C8/TOOLCHAIN_GCC_ARM/STM32L053X8.ld Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32L0/TARGET_DISCO_L053C8/TOOLCHAIN_GCC_ARM/STM32L053X8.ld Mon Dec 15 09:30:07 2014 +0000
@@ -2,14 +2,14 @@
MEMORY
{
FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 64k
- RAM (rwx) : ORIGIN = 0x200000C0, LENGTH = 8K - 0xC0
+ RAM (rwx) : ORIGIN = 0x200000C0, LENGTH = 8K - 0xC0
}
/* Linker script to place sections and symbol values. Should be used together
* with other linker script that defines memory regions FLASH and RAM.
* It references following symbols, which must be defined in code:
* Reset_Handler : Entry of reset handler
- *
+ *
* It defines following symbols, which code can use without definition:
* __exidx_start
* __exidx_end
@@ -62,7 +62,7 @@
KEEP(*(.eh_frame*))
} > FLASH
- .ARM.extab :
+ .ARM.extab :
{
*(.ARM.extab* .gnu.linkonce.armextab.*)
} > FLASH
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_STM/TARGET_STM32L0/TARGET_DISCO_L053C8/TOOLCHAIN_IAR/startup_stm32l053xx.s Mon Dec 15 09:30:07 2014 +0000 @@ -0,0 +1,332 @@ +;/******************** (C) COPYRIGHT 2014 STMicroelectronics ******************** +;* File Name : startup_stm32l053xx.s +;* Author : MCD Application Team +;* Version : V1.1.0 +;* Date : 18-June-2014 +;* Description : STM32L053xx Ultra Low Power Devices vector +;* This module performs: +;* - Set the initial SP +;* - Set the initial PC == _iar_program_start, +;* - Set the vector table entries with the exceptions ISR +;* address. +;* - Configure the system clock +;* - Branches to main in the C library (which eventually +;* calls main()). +;* After Reset the Cortex-M0+ processor is in Thread mode, +;* priority is Privileged, and the Stack is set to Main. +;******************************************************************************** +;* +;* Redistribution and use in source and binary forms, with or without modification, +;* are permitted provided that the following conditions are met: +;* 1. Redistributions of source code must retain the above copyright notice, +;* this list of conditions and the following disclaimer. +;* 2. Redistributions in binary form must reproduce the above copyright notice, +;* this list of conditions and the following disclaimer in the documentation +;* and/or other materials provided with the distribution. +;* 3. Neither the name of STMicroelectronics nor the names of its contributors +;* may be used to endorse or promote products derived from this software +;* without specific prior written permission. +;* +;* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" +;* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE +;* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE +;* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE +;* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL +;* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR +;* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER +;* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, +;* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +;* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +;* +;*******************************************************************************/ +; +; +; The modules in this file are included in the libraries, and may be replaced +; by any user-defined modules that define the PUBLIC symbol _program_start or +; a user defined start symbol. +; To override the cstartup defined in the library, simply add your modified +; version to the workbench project. +; +; The vector table is normally located at address 0. +; When debugging in RAM, it can be located in RAM, aligned to at least 2^6. +; The name "__vector_table" has special meaning for C-SPY: +; it is where the SP start value is found, and the NVIC vector +; table register (VTOR) is initialized to this address if != 0. +; +; Cortex-M version +; + + MODULE ?cstartup + + ;; Forward declaration of sections. + SECTION CSTACK:DATA:NOROOT(3) + + SECTION .intvec:CODE:NOROOT(2) + + EXTERN __iar_program_start + EXTERN SystemInit + PUBLIC __vector_table + + DATA +__vector_table + DCD sfe(CSTACK) + DCD Reset_Handler ; Reset Handler + + DCD NMI_Handler ; NMI Handler + DCD HardFault_Handler ; Hard Fault Handler + DCD 0 ; Reserved + DCD 0 ; Reserved + DCD 0 ; Reserved + DCD 0 ; Reserved + DCD 0 ; Reserved + DCD 0 ; Reserved + DCD 0 ; Reserved + DCD SVC_Handler ; SVCall Handler + DCD DebugMon_Handler ; Debug Monitor Handler + DCD 0 ; Reserved + DCD PendSV_Handler ; PendSV Handler + DCD SysTick_Handler ; SysTick Handler + + ; External Interrupts + DCD WWDG_IRQHandler ; Window Watchdog + DCD PVD_IRQHandler ; PVD through EXTI Line detect + DCD RTC_IRQHandler ; RTC through EXTI Line + DCD FLASH_IRQHandler ; FLASH + DCD RCC_CRS_IRQHandler ; RCC_CRS + DCD EXTI0_1_IRQHandler ; EXTI Line 0 and 1 + DCD EXTI2_3_IRQHandler ; EXTI Line 2 and 3 + DCD EXTI4_15_IRQHandler ; EXTI Line 4 to 15 + DCD TSC_IRQHandler ; TSC + DCD DMA1_Channel1_IRQHandler ; DMA1 Channel 1 + DCD DMA1_Channel2_3_IRQHandler ; DMA1 Channel 2 and Channel 3 + DCD DMA1_Channel4_5_6_7_IRQHandler ; DMA1 Channel 4, Channel 5, Channel 6 and Channel 7 + DCD ADC1_COMP_IRQHandler ; ADC1, COMP1 and COMP2 + DCD LPTIM1_IRQHandler ; LPTIM1 + DCD 0 ; Reserved + DCD TIM2_IRQHandler ; TIM2 + DCD 0 ; Reserved + DCD TIM6_DAC_IRQHandler ; TIM6 and DAC + DCD 0 ; Reserved + DCD 0 ; Reserved + DCD TIM21_IRQHandler ; TIM21 + DCD 0 ; Reserved + DCD TIM22_IRQHandler ; TIM22 + DCD I2C1_IRQHandler ; I2C1 + DCD I2C2_IRQHandler ; I2C2 + DCD SPI1_IRQHandler ; SPI1 + DCD SPI2_IRQHandler ; SPI2 + DCD USART1_IRQHandler ; USART1 + DCD USART2_IRQHandler ; USART2 + DCD RNG_LPUART1_IRQHandler ; RNG and LPUART1 + DCD LCD_IRQHandler ; LCD + DCD USB_IRQHandler ; USB + +;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; +;; +;; Default interrupt handlers. +;; + THUMB + PUBWEAK Reset_Handler + SECTION .text:CODE:NOROOT:REORDER(2) +Reset_Handler + LDR R0, =SystemInit + BLX R0 + LDR R0, =__iar_program_start + BX R0 + + PUBWEAK NMI_Handler + SECTION .text:CODE:NOROOT:REORDER(1) +NMI_Handler + B NMI_Handler + + + PUBWEAK HardFault_Handler + SECTION .text:CODE:NOROOT:REORDER(1) +HardFault_Handler + B HardFault_Handler + + + PUBWEAK SVC_Handler + SECTION .text:CODE:NOROOT:REORDER(1) +SVC_Handler + B SVC_Handler + + + PUBWEAK DebugMon_Handler + SECTION .text:CODE:NOROOT:REORDER(1) +DebugMon_Handler + B DebugMon_Handler + + + PUBWEAK PendSV_Handler + SECTION .text:CODE:NOROOT:REORDER(1) +PendSV_Handler + B PendSV_Handler + + + PUBWEAK SysTick_Handler + SECTION .text:CODE:NOROOT:REORDER(1) +SysTick_Handler + B SysTick_Handler + + + PUBWEAK WWDG_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +WWDG_IRQHandler + B WWDG_IRQHandler + + + PUBWEAK PVD_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +PVD_IRQHandler + B PVD_IRQHandler + + + PUBWEAK RTC_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +RTC_IRQHandler + B RTC_IRQHandler + + + PUBWEAK FLASH_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +FLASH_IRQHandler + B FLASH_IRQHandler + + + PUBWEAK RCC_CRS_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +RCC_CRS_IRQHandler + B RCC_CRS_IRQHandler + + + PUBWEAK EXTI0_1_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +EXTI0_1_IRQHandler + B EXTI0_1_IRQHandler + + + PUBWEAK EXTI2_3_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +EXTI2_3_IRQHandler + B EXTI2_3_IRQHandler + + + PUBWEAK EXTI4_15_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +EXTI4_15_IRQHandler + B EXTI4_15_IRQHandler + + + PUBWEAK TSC_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +TSC_IRQHandler + B TSC_IRQHandler + + + PUBWEAK DMA1_Channel1_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +DMA1_Channel1_IRQHandler + B DMA1_Channel1_IRQHandler + + + PUBWEAK DMA1_Channel2_3_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +DMA1_Channel2_3_IRQHandler + B DMA1_Channel2_3_IRQHandler + + + PUBWEAK DMA1_Channel4_5_6_7_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +DMA1_Channel4_5_6_7_IRQHandler + B DMA1_Channel4_5_6_7_IRQHandler + + + PUBWEAK ADC1_COMP_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +ADC1_COMP_IRQHandler + B ADC1_COMP_IRQHandler + + + PUBWEAK LPTIM1_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +LPTIM1_IRQHandler + B LPTIM1_IRQHandler + + + PUBWEAK TIM2_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +TIM2_IRQHandler + B TIM2_IRQHandler + + + PUBWEAK TIM6_DAC_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +TIM6_DAC_IRQHandler + B TIM6_DAC_IRQHandler + + PUBWEAK TIM21_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +TIM21_IRQHandler + B TIM21_IRQHandler + + PUBWEAK TIM22_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +TIM22_IRQHandler + B TIM22_IRQHandler + + + PUBWEAK I2C1_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +I2C1_IRQHandler + B I2C1_IRQHandler + + + PUBWEAK I2C2_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +I2C2_IRQHandler + B I2C2_IRQHandler + + + PUBWEAK SPI1_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +SPI1_IRQHandler + B SPI1_IRQHandler + + + PUBWEAK SPI2_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +SPI2_IRQHandler + B SPI2_IRQHandler + + + PUBWEAK USART1_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +USART1_IRQHandler + B USART1_IRQHandler + + + PUBWEAK USART2_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +USART2_IRQHandler + B USART2_IRQHandler + + + PUBWEAK RNG_LPUART1_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +RNG_LPUART1_IRQHandler + B RNG_LPUART1_IRQHandler + + + PUBWEAK LCD_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +LCD_IRQHandler + B LCD_IRQHandler + + PUBWEAK USB_IRQHandler + SECTION .text:CODE:NOROOT:REORDER(1) +USB_IRQHandler + B USB_IRQHandler + + END +;************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE*****
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32L0/TARGET_DISCO_L053C8/TOOLCHAIN_IAR/stm32l053xx.icf Mon Dec 15 09:30:07 2014 +0000
@@ -0,0 +1,30 @@
+/* [ROM = 64kb = 0x10000] */
+define symbol __intvec_start__ = 0x08000000;
+define symbol __region_ROM_start__ = 0x08000000;
+define symbol __region_ROM_end__ = 0x0800FFFF;
+
+/* [RAM = 8kb = 0x2000] Vector table dynamic copy: 48 vectors = 192 bytes (0xC0) to be reserved in RAM */
+define symbol __NVIC_start__ = 0x20000000;
+define symbol __NVIC_end__ = 0x200000BF; /* Aligned on 8 bytes */
+define symbol __region_RAM_start__ = 0x200000C0;
+define symbol __region_RAM_end__ = 0x20001FFF;
+
+/* Memory regions */
+define memory mem with size = 4G;
+define region ROM_region = mem:[from __region_ROM_start__ to __region_ROM_end__];
+define region RAM_region = mem:[from __region_RAM_start__ to __region_RAM_end__];
+
+/* Stack and Heap */
+define symbol __size_cstack__ = 0x500;
+define symbol __size_heap__ = 0x1000;
+define block CSTACK with alignment = 8, size = __size_cstack__ { };
+define block HEAP with alignment = 8, size = __size_heap__ { };
+define block STACKHEAP with fixed order { block HEAP, block CSTACK };
+
+initialize by copy with packing = zeros { readwrite };
+do not initialize { section .noinit };
+
+place at address mem:__intvec_start__ { readonly section .intvec };
+
+place in ROM_region { readonly };
+place in RAM_region { readwrite, block STACKHEAP };
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32L0/TARGET_DISCO_L053C8/hal_tick.c Mon Dec 15 09:30:07 2014 +0000
@@ -0,0 +1,145 @@
+/**
+ ******************************************************************************
+ * @file hal_tick.c
+ * @author MCD Application Team
+ * @brief Initialization of HAL tick
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT 2014 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+#include "hal_tick.h"
+
+TIM_HandleTypeDef TimMasterHandle;
+uint32_t PreviousVal = 0;
+
+void us_ticker_irq_handler(void);
+void set_compare(uint16_t count);
+
+extern volatile uint32_t SlaveCounter;
+extern volatile uint32_t oc_int_part;
+extern volatile uint16_t oc_rem_part;
+
+void timer_irq_handler(void) {
+ uint16_t cval = TIM_MST->CNT;
+
+ TimMasterHandle.Instance = TIM_MST;
+
+ // Clear Update interrupt flag
+ if (__HAL_TIM_GET_FLAG(&TimMasterHandle, TIM_FLAG_UPDATE) == SET) {
+ __HAL_TIM_CLEAR_FLAG(&TimMasterHandle, TIM_FLAG_UPDATE);
+ SlaveCounter++;
+ }
+
+ // Channel 1 for mbed timeout
+ if (__HAL_TIM_GET_FLAG(&TimMasterHandle, TIM_FLAG_CC1) == SET) {
+ __HAL_TIM_CLEAR_FLAG(&TimMasterHandle, TIM_FLAG_CC1);
+ if (oc_rem_part > 0) {
+ set_compare(oc_rem_part); // Finish the remaining time left
+ oc_rem_part = 0;
+ } else {
+ if (oc_int_part > 0) {
+ set_compare(0xFFFF);
+ oc_rem_part = cval; // To finish the counter loop the next time
+ oc_int_part--;
+ } else {
+ us_ticker_irq_handler();
+ }
+ }
+ }
+
+ // Channel 2 for HAL tick
+ if (__HAL_TIM_GET_FLAG(&TimMasterHandle, TIM_FLAG_CC2) == SET) {
+ __HAL_TIM_CLEAR_FLAG(&TimMasterHandle, TIM_FLAG_CC2);
+ uint32_t val = __HAL_TIM_GetCounter(&TimMasterHandle);
+ if ((val - PreviousVal) >= HAL_TICK_DELAY) {
+ // Increment HAL variable
+ HAL_IncTick();
+ // Prepare next interrupt
+ __HAL_TIM_SetCompare(&TimMasterHandle, TIM_CHANNEL_2, val + HAL_TICK_DELAY);
+ PreviousVal = val;
+ }
+ }
+}
+
+// Reconfigure the HAL tick using a standard timer instead of systick.
+HAL_StatusTypeDef HAL_InitTick(uint32_t TickPriority) {
+ // Enable timer clock
+ TIM_MST_RCC;
+
+ // Reset timer
+ TIM_MST_RESET_ON;
+ TIM_MST_RESET_OFF;
+
+ // Update the SystemCoreClock variable
+ SystemCoreClockUpdate();
+
+ // Configure time base
+ TimMasterHandle.Instance = TIM_MST;
+ TimMasterHandle.Init.Period = 0xFFFFFFFF;
+ TimMasterHandle.Init.Prescaler = (uint32_t)(SystemCoreClock / 1000000) - 1; // 1 us tick
+ TimMasterHandle.Init.ClockDivision = 0;
+ TimMasterHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
+ HAL_TIM_Base_Init(&TimMasterHandle);
+
+ // Configure output compare channel 1 for mbed timeout (enabled later when used)
+ HAL_TIM_OC_Start(&TimMasterHandle, TIM_CHANNEL_1);
+
+ // Configure output compare channel 2 for HAL tick
+ HAL_TIM_OC_Start(&TimMasterHandle, TIM_CHANNEL_2);
+ PreviousVal = __HAL_TIM_GetCounter(&TimMasterHandle);
+ __HAL_TIM_SetCompare(&TimMasterHandle, TIM_CHANNEL_2, PreviousVal + HAL_TICK_DELAY);
+
+ // Configure interrupts
+ // Update interrupt used for 32-bit counter
+ // Output compare channel 1 interrupt for mbed timeout
+ // Output compare channel 2 interrupt for HAL tick
+ NVIC_SetVector(TIM_MST_IRQ, (uint32_t)timer_irq_handler);
+ NVIC_EnableIRQ(TIM_MST_IRQ);
+
+ // Enable interrupts
+ __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_UPDATE); // For 32-bit counter
+ __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC2); // For HAL tick
+
+ // Enable timer
+ HAL_TIM_Base_Start(&TimMasterHandle);
+
+ return HAL_OK;
+}
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+
+/**
+ * @}
+ */
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32L0/TARGET_DISCO_L053C8/hal_tick.h Mon Dec 15 09:30:07 2014 +0000
@@ -0,0 +1,60 @@
+/**
+ ******************************************************************************
+ * @file hal_tick.h
+ * @author MCD Application Team
+ * @brief Initialization of HAL tick
+ ******************************************************************************
+ * @attention
+ *
+ * <h2><center>© COPYRIGHT(c) 2014 STMicroelectronics</center></h2>
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ ******************************************************************************
+ */
+#ifndef __HAL_TICK_H
+#define __HAL_TICK_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+#include "stm32l0xx.h"
+#include "cmsis_nvic.h"
+
+#define TIM_MST TIM21
+#define TIM_MST_IRQ TIM21_IRQn
+#define TIM_MST_RCC __TIM21_CLK_ENABLE()
+
+#define TIM_MST_RESET_ON __TIM21_FORCE_RESET()
+#define TIM_MST_RESET_OFF __TIM21_RELEASE_RESET()
+
+#define HAL_TICK_DELAY (1000) // 1 ms
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // __HAL_TICK_H
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/
--- a/targets/cmsis/TARGET_STM/TARGET_STM32L0/TARGET_DISCO_L053C8/system_stm32l0xx.c Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32L0/TARGET_DISCO_L053C8/system_stm32l0xx.c Mon Dec 15 09:30:07 2014 +0000
@@ -36,8 +36,7 @@
* APB2CLK (MHz) | 32 | 32
*-----------------------------------------------------------------------------
* USB capable (48 MHz precise clock) | YES | YES
- *-----------------------------------------------------------------------------
- *
+ *-----------------------------------------------------------------------------
******************************************************************************
* @attention
*
@@ -81,6 +80,7 @@
*/
#include "stm32l0xx.h"
+#include "hal_tick.h"
#if !defined (HSE_VALUE)
#define HSE_VALUE ((uint32_t)8000000) /*!< Value of the External oscillator in Hz */
@@ -207,11 +207,16 @@
#endif
/* Configure the Cube driver */
+ SystemCoreClock = 8000000; // At this stage the HSI is used as system clock
HAL_Init();
/* Configure the System clock source, PLL Multiplier and Divider factors,
AHB/APBx prescalers and Flash settings */
SetSysClock();
+
+ /* Reset the timer to avoid issues after the RAM initialization */
+ TIM_MST_RESET_ON;
+ TIM_MST_RESET_OFF;
}
/**
@@ -448,12 +453,6 @@
return 1; // OK
}
-/* Used for the different timeouts in the HAL */
-void SysTick_Handler(void)
-{
- HAL_IncTick();
-}
-
/**
* @}
*/
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/PeripheralPins.c Mon Dec 15 09:30:07 2014 +0000
@@ -0,0 +1,170 @@
+/* mbed Microcontroller Library
+ *******************************************************************************
+ * Copyright (c) 2014, STMicroelectronics
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice,
+ * this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation
+ * and/or other materials provided with the distribution.
+ * 3. Neither the name of STMicroelectronics nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *******************************************************************************
+ */
+
+#include "PeripheralPins.h"
+
+// =====
+// Note: Commented lines are alternative possibilities which are not used per default.
+// If you change them, you will have also to modify the corresponding xxx_api.c file
+// for pwmout, analogin, analogout, ...
+// =====
+
+//*** ADC ***
+
+const PinMap PinMap_ADC[] = {
+ {PA_0, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN0
+ {PA_1, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN1
+ {PA_2, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN2
+ {PA_3, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN3
+ {PA_4, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN4
+ {PA_5, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN5
+ {PA_6, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN6
+ {PA_7, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN7
+ {PB_0, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN8
+ {PB_1, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN9
+ {PC_0, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN10
+ {PC_1, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN11
+ {PC_2, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN12
+ {PC_3, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN13
+ {PC_4, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN14
+ {PC_5, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN15
+ {NC, NC, 0}
+};
+
+//*** DAC ***
+
+const PinMap PinMap_DAC[] = {
+ {PA_4, DAC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // DAC_OUT
+ {NC, NC, 0}
+};
+
+//*** I2C ***
+
+const PinMap PinMap_I2C_SDA[] = {
+ {PB_7, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF1_I2C1)},
+ {PB_9, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF4_I2C1)},
+ {PB_11, I2C_2, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF6_I2C2)},
+ {PB_14, I2C_2, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF5_I2C2)},
+ {NC, NC, 0}
+};
+
+const PinMap PinMap_I2C_SCL[] = {
+ {PB_6, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF1_I2C1)},
+ {PB_8, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF4_I2C1)},
+ {PB_10, I2C_2, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF6_I2C2)},
+ {PB_13, I2C_2, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF5_I2C2)},
+ {NC, NC, 0}
+};
+
+//*** PWM ***
+
+// TIM21 cannot be used because already used by the us_ticker
+const PinMap PinMap_PWM[] = {
+ {PA_0, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM2)}, // TIM2_CH1
+ {PA_1, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM2)}, // TIM2_CH2
+// {PA_2, PWM_21, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_TIM21)}, // TIM21_CH1
+// {PA_2, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM2)}, // TIM2_CH3 - used by STDIO TX
+// {PA_3, PWM_21, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_TIM21)}, // TIM21_CH2
+// {PA_3, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM2)}, // TIM2_CH4 - used by STDIO RX
+ {PA_5, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_TIM2)}, // TIM2_CH1 - used also to drive the LED
+ {PA_6, PWM_22, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_TIM22)}, // TIM22_CH1
+ {PA_7, PWM_22, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_TIM22)}, // TIM22_CH2
+ {PA_15, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_TIM2)}, // TIM2_CH1
+ {PB_3, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM2)}, // TIM2_CH2
+ {PB_4, PWM_22, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_TIM22)}, // TIM22_CH1
+ {PB_5, PWM_22, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_TIM22)}, // TIM22_CH2
+ {PB_10, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM2)}, // TIM2_CH3
+ {PB_11, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM2)}, // TIM2_CH4
+// {PB_13, PWM_21, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_TIM21)}, // TIM21_CH1
+// {PB_14, PWM_21, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_TIM21)}, // TIM21_CH2
+ {PC_6, PWM_22, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_TIM22)}, // TIM22_CH1
+ {PC_7, PWM_22, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_TIM22)}, // TIM22_CH2
+ {NC, NC, 0}
+};
+
+//*** SERIAL ***
+
+const PinMap PinMap_UART_TX[] = {
+ {PA_2, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)},
+ {PA_9, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART1)},
+ {PA_14, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)}, // Warning: this pin is used by SWCLK
+ {PB_6, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_USART1)},
+ {PB_10, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_LPUART1)},
+ {PC_4, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_LPUART1)},
+ {PC_10, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_LPUART1)},
+ {NC, NC, 0}
+};
+
+const PinMap PinMap_UART_RX[] = {
+ {PA_3, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)},
+ {PA_10, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART1)},
+ {PA_15, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)},
+ {PB_7, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_USART1)},
+ {PB_11, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_LPUART1)},
+ {PC_5, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_LPUART1)},
+ {PC_11, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_LPUART1)},
+ {NC, NC, 0}
+};
+
+//*** SPI ***
+
+const PinMap PinMap_SPI_MOSI[] = {
+ {PA_7, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
+ {PA_12, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
+ {PB_5, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
+ {PB_15, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI2)},
+ {PC_3, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_SPI2)},
+ {NC, NC, 0}
+};
+
+const PinMap PinMap_SPI_MISO[] = {
+ {PA_6, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
+ {PA_11, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
+ {PB_4, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
+ {PB_14, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI2)},
+ {PC_2, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_SPI2)},
+ {NC, NC, 0}
+};
+
+const PinMap PinMap_SPI_SCLK[] = {
+ {PA_5, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
+ {PB_3, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
+ {PB_10, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI2)},
+ {PB_13, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI2)},
+ {NC, NC, 0}
+};
+
+const PinMap PinMap_SPI_SSEL[] = {
+ {PA_4, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
+ {PA_15, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
+ {PB_9, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI2)},
+ {PB_12, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI2)},
+ {NC, NC, 0}
+};
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/PeripheralPins.h Mon Dec 15 09:30:07 2014 +0000 @@ -0,0 +1,66 @@ +/* mbed Microcontroller Library + ******************************************************************************* + * Copyright (c) 2014, STMicroelectronics + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. Neither the name of STMicroelectronics nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" + * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR + * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER + * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, + * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + ******************************************************************************* + */ + +#ifndef MBED_PERIPHERALPINS_H +#define MBED_PERIPHERALPINS_H + +#include "pinmap.h" +#include "PeripheralNames.h" + +//*** ADC *** + +extern const PinMap PinMap_ADC[]; + +//*** DAC *** + +extern const PinMap PinMap_DAC[]; + +//*** I2C *** + +extern const PinMap PinMap_I2C_SDA[]; +extern const PinMap PinMap_I2C_SCL[]; + +//*** PWM *** + +extern const PinMap PinMap_PWM[]; + +//*** SERIAL *** + +extern const PinMap PinMap_UART_TX[]; +extern const PinMap PinMap_UART_RX[]; + +//*** SPI *** + +extern const PinMap PinMap_SPI_MOSI[]; +extern const PinMap PinMap_SPI_MISO[]; +extern const PinMap PinMap_SPI_SCLK[]; +extern const PinMap PinMap_SPI_SSEL[]; + +#endif
--- a/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/analogin_api.c Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/analogin_api.c Mon Dec 15 09:30:07 2014 +0000
@@ -33,32 +33,14 @@
#include "wait_api.h"
#include "cmsis.h"
#include "pinmap.h"
-
-static const PinMap PinMap_ADC[] = {
- {PA_0, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN0
- {PA_1, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN1
- {PA_2, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN2
- {PA_3, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN3
- {PA_4, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN4
- {PA_5, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN5
- {PA_6, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN6
- {PA_7, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN7
- {PB_0, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN8
- {PB_1, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN9
- {PC_0, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN10
- {PC_1, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN11
- {PC_2, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN12
- {PC_3, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN13
- {PC_4, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN14
- {PC_5, ADC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // ADC1_IN15
- {NC, NC, 0}
-};
+#include "PeripheralPins.h"
ADC_HandleTypeDef AdcHandle;
int adc_inited = 0;
-void analogin_init(analogin_t *obj, PinName pin) {
+void analogin_init(analogin_t *obj, PinName pin)
+{
// Get the peripheral name from the pin and assign it to the object
obj->adc = (ADCName)pinmap_peripheral(pin, PinMap_ADC);
MBED_ASSERT(obj->adc != (ADCName)NC);
@@ -96,15 +78,16 @@
AdcHandle.Init.LowPowerFrequencyMode = DISABLE; // To be enabled only if ADC clock < 2.8 MHz
AdcHandle.Init.LowPowerAutoOff = DISABLE;
HAL_ADC_Init(&AdcHandle);
-
+
// Calibration
HAL_ADCEx_Calibration_Start(&AdcHandle, ADC_SINGLE_ENDED);
-
+
__HAL_ADC_ENABLE(&AdcHandle);
}
}
-static inline uint16_t adc_read(analogin_t *obj) {
+static inline uint16_t adc_read(analogin_t *obj)
+{
ADC_ChannelConfTypeDef sConfig;
AdcHandle.Instance = (ADC_TypeDef *)(obj->adc);
@@ -176,14 +159,16 @@
}
}
-uint16_t analogin_read_u16(analogin_t *obj) {
+uint16_t analogin_read_u16(analogin_t *obj)
+{
uint16_t value = adc_read(obj);
// 12-bit to 16-bit conversion
value = ((value << 4) & (uint16_t)0xFFF0) | ((value >> 8) & (uint16_t)0x000F);
return value;
}
-float analogin_read(analogin_t *obj) {
+float analogin_read(analogin_t *obj)
+{
uint16_t value = adc_read(obj);
return (float)value * (1.0f / (float)0xFFF); // 12 bits range
}
--- a/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/analogout_api.c Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/analogout_api.c Mon Dec 15 09:30:07 2014 +0000
@@ -33,17 +33,14 @@
#include "cmsis.h"
#include "pinmap.h"
#include "mbed_error.h"
+#include "PeripheralPins.h"
#define DAC_RANGE (0xFFF) // 12 bits
-static const PinMap PinMap_DAC[] = {
- {PA_4, DAC_1, STM_PIN_DATA(STM_MODE_ANALOG, GPIO_NOPULL, 0)}, // DAC_OUT
- {NC, NC, 0}
-};
-
static DAC_HandleTypeDef DacHandle;
-void analogout_init(dac_t *obj, PinName pin) {
+void analogout_init(dac_t *obj, PinName pin)
+{
DAC_ChannelConfTypeDef sConfig;
DacHandle.Instance = DAC;
@@ -70,7 +67,8 @@
analogout_write_u16(obj, 0);
}
-void analogout_free(dac_t *obj) {
+void analogout_free(dac_t *obj)
+{
// Reset DAC and disable clock
__DAC_FORCE_RESET();
__DAC_RELEASE_RESET();
@@ -80,16 +78,19 @@
pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
}
-static inline void dac_write(dac_t *obj, uint16_t value) {
+static inline void dac_write(dac_t *obj, uint16_t value)
+{
HAL_DAC_SetValue(&DacHandle, DAC_CHANNEL_1, DAC_ALIGN_12B_R, value);
HAL_DAC_Start(&DacHandle, DAC_CHANNEL_1);
}
-static inline int dac_read(dac_t *obj) {
+static inline int dac_read(dac_t *obj)
+{
return (int)HAL_DAC_GetValue(&DacHandle, DAC_CHANNEL_1);
}
-void analogout_write(dac_t *obj, float value) {
+void analogout_write(dac_t *obj, float value)
+{
if (value < 0.0f) {
dac_write(obj, 0); // Min value
} else if (value > 1.0f) {
@@ -99,7 +100,8 @@
}
}
-void analogout_write_u16(dac_t *obj, uint16_t value) {
+void analogout_write_u16(dac_t *obj, uint16_t value)
+{
if (value > (uint16_t)DAC_RANGE) {
dac_write(obj, (uint16_t)DAC_RANGE); // Max value
} else {
@@ -107,12 +109,14 @@
}
}
-float analogout_read(dac_t *obj) {
+float analogout_read(dac_t *obj)
+{
uint32_t value = dac_read(obj);
return (float)((float)value * (1.0f / (float)DAC_RANGE));
}
-uint16_t analogout_read_u16(dac_t *obj) {
+uint16_t analogout_read_u16(dac_t *obj)
+{
return (uint16_t)dac_read(obj);
}
--- a/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/gpio_api.c Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/gpio_api.c Mon Dec 15 09:30:07 2014 +0000
@@ -34,14 +34,16 @@
extern uint32_t Set_GPIO_Clock(uint32_t port_idx);
-uint32_t gpio_set(PinName pin) {
+uint32_t gpio_set(PinName pin)
+{
MBED_ASSERT(pin != (PinName)NC);
pin_function(pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
return (uint32_t)(1 << ((uint32_t)pin & 0xF)); // Return the pin mask
}
-void gpio_init(gpio_t *obj, PinName pin) {
+void gpio_init(gpio_t *obj, PinName pin)
+{
obj->pin = pin;
if (pin == (PinName)NC)
return;
@@ -59,11 +61,13 @@
obj->reg_clr = &gpio->BRR;
}
-void gpio_mode(gpio_t *obj, PinMode mode) {
+void gpio_mode(gpio_t *obj, PinMode mode)
+{
pin_mode(obj->pin, mode);
}
-void gpio_dir(gpio_t *obj, PinDirection direction) {
+void gpio_dir(gpio_t *obj, PinDirection direction)
+{
MBED_ASSERT(obj->pin != (PinName)NC);
if (direction == PIN_OUTPUT) {
pin_function(obj->pin, STM_PIN_DATA(STM_MODE_OUTPUT_PP, GPIO_NOPULL, 0));
--- a/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/gpio_irq_api.c Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/gpio_irq_api.c Mon Dec 15 09:30:07 2014 +0000
@@ -38,54 +38,107 @@
#define EDGE_FALL (2)
#define EDGE_BOTH (3)
+// Number of EXTI irq vectors (EXTI0_1, EXTI2_3, EXTI4_15)
#define CHANNEL_NUM (3)
-static uint32_t channel_ids[CHANNEL_NUM] = {0, 0, 0};
-static uint32_t channel_gpio[CHANNEL_NUM] = {0, 0, 0};
-static uint32_t channel_pin[CHANNEL_NUM] = {0, 0, 0};
+// Max pins for one line (max with EXTI4_15)
+#define MAX_PIN_LINE (12)
+
+typedef struct gpio_channel {
+ uint32_t pin_mask; // bitmask representing which pins are configured for receiving interrupts
+ uint32_t channel_ids[MAX_PIN_LINE]; // mbed "gpio_irq_t gpio_irq" field of instance
+ uint32_t channel_gpio[MAX_PIN_LINE]; // base address of gpio port group
+ uint32_t channel_pin[MAX_PIN_LINE]; // pin number in port group
+} gpio_channel_t;
+
+static gpio_channel_t channels[CHANNEL_NUM] = {
+ {.pin_mask = 0},
+ {.pin_mask = 0},
+ {.pin_mask = 0}
+};
+
+// Used to return the index for channels array.
+static uint32_t pin_base_nr[16] = {
+ // EXTI0_1
+ 0, // pin 0
+ 1, // pin 1
+ // EXTI2_3
+ 0, // pin 2
+ 1, // pin 3
+ // EXTI4_15
+ 0, // pin 4
+ 1, // pin 5
+ 2, // pin 6
+ 3, // pin 7
+ 4, // pin 8
+ 5, // pin 9
+ 6, // pin 10
+ 7, // pin 11
+ 8, // pin 12
+ 9, // pin 13
+ 10, // pin 14
+ 11 // pin 15
+};
static gpio_irq_handler irq_handler;
-static void handle_interrupt_in(uint32_t irq_index) {
- // Retrieve the gpio and pin that generate the irq
- GPIO_TypeDef *gpio = (GPIO_TypeDef *)(channel_gpio[irq_index]);
- uint32_t pin = (uint32_t)(1 << channel_pin[irq_index]);
+static void handle_interrupt_in(uint32_t irq_index, uint32_t max_num_pin_line)
+{
+ gpio_channel_t *gpio_channel = &channels[irq_index];
+ uint32_t gpio_idx;
+
+ for (gpio_idx = 0; gpio_idx < max_num_pin_line; gpio_idx++) {
+ uint32_t current_mask = (1 << gpio_idx);
+
+ if (gpio_channel->pin_mask & current_mask) {
+ // Retrieve the gpio and pin that generate the irq
+ GPIO_TypeDef *gpio = (GPIO_TypeDef *)(gpio_channel->channel_gpio[gpio_idx]);
+ uint32_t pin = (uint32_t)(1 << (gpio_channel->channel_pin[gpio_idx]));
- // Clear interrupt flag
- if (__HAL_GPIO_EXTI_GET_FLAG(pin) != RESET) {
- __HAL_GPIO_EXTI_CLEAR_FLAG(pin);
- }
+ // Clear interrupt flag
+ if (__HAL_GPIO_EXTI_GET_FLAG(pin) != RESET) {
+ __HAL_GPIO_EXTI_CLEAR_FLAG(pin);
+
+ if (gpio_channel->channel_ids[gpio_idx] == 0) continue;
- if (channel_ids[irq_index] == 0) return;
-
- // Check which edge has generated the irq
- if ((gpio->IDR & pin) == 0) {
- irq_handler(channel_ids[irq_index], IRQ_FALL);
- } else {
- irq_handler(channel_ids[irq_index], IRQ_RISE);
+ // Check which edge has generated the irq
+ if ((gpio->IDR & pin) == 0) {
+ irq_handler(gpio_channel->channel_ids[gpio_idx], IRQ_FALL);
+ } else {
+ irq_handler(gpio_channel->channel_ids[gpio_idx], IRQ_RISE);
+ }
+ }
+ }
}
}
-// The irq_index is passed to the function
// EXTI lines 0 to 1
-static void gpio_irq0(void) {
- handle_interrupt_in(0);
+static void gpio_irq0(void)
+{
+ handle_interrupt_in(0, 2);
}
+
// EXTI lines 2 to 3
-static void gpio_irq1(void) {
- handle_interrupt_in(1);
+static void gpio_irq1(void)
+{
+ handle_interrupt_in(1, 2);
}
+
// EXTI lines 4 to 15
-static void gpio_irq2(void) {
- handle_interrupt_in(2);
+static void gpio_irq2(void)
+{
+ handle_interrupt_in(2, 12);
}
extern uint32_t Set_GPIO_Clock(uint32_t port_idx);
-int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32_t id) {
+int gpio_irq_init(gpio_irq_t *obj, PinName pin, gpio_irq_handler handler, uint32_t id)
+{
IRQn_Type irq_n = (IRQn_Type)0;
uint32_t vector = 0;
uint32_t irq_index;
+ gpio_channel_t *gpio_channel;
+ uint32_t gpio_idx;
if (pin == NC) return -1;
@@ -125,19 +178,30 @@
obj->irq_index = irq_index;
obj->event = EDGE_NONE;
obj->pin = pin;
- channel_ids[irq_index] = id;
- channel_gpio[irq_index] = gpio_add;
- channel_pin[irq_index] = pin_index;
+
+ gpio_channel = &channels[irq_index];
+ gpio_idx = pin_base_nr[pin_index];
+ gpio_channel->pin_mask |= (1 << gpio_idx);
+ gpio_channel->channel_ids[gpio_idx] = id;
+ gpio_channel->channel_gpio[gpio_idx] = gpio_add;
+ gpio_channel->channel_pin[gpio_idx] = pin_index;
irq_handler = handler;
return 0;
}
-void gpio_irq_free(gpio_irq_t *obj) {
- channel_ids[obj->irq_index] = 0;
- channel_gpio[obj->irq_index] = 0;
- channel_pin[obj->irq_index] = 0;
+void gpio_irq_free(gpio_irq_t *obj)
+{
+ gpio_channel_t *gpio_channel = &channels[obj->irq_index];
+ uint32_t pin_index = STM_PIN(obj->pin);
+ uint32_t gpio_idx = pin_base_nr[pin_index];
+
+ gpio_channel->pin_mask &= ~(1 << gpio_idx);
+ gpio_channel->channel_ids[gpio_idx] = 0;
+ gpio_channel->channel_gpio[gpio_idx] = 0;
+ gpio_channel->channel_pin[gpio_idx] = 0;
+
// Disable EXTI line
pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
obj->event = EDGE_NONE;
@@ -191,11 +255,13 @@
pin_function(obj->pin, STM_PIN_DATA(mode, pull, 0));
}
-void gpio_irq_enable(gpio_irq_t *obj) {
+void gpio_irq_enable(gpio_irq_t *obj)
+{
NVIC_EnableIRQ(obj->irq_n);
}
-void gpio_irq_disable(gpio_irq_t *obj) {
+void gpio_irq_disable(gpio_irq_t *obj)
+{
NVIC_DisableIRQ(obj->irq_n);
obj->event = EDGE_NONE;
}
--- a/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/gpio_object.h Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/gpio_object.h Mon Dec 15 09:30:07 2014 +0000
@@ -43,12 +43,13 @@
typedef struct {
PinName pin;
uint32_t mask;
- __IO uint16_t *reg_in;
+ __IO uint32_t *reg_in;
__IO uint32_t *reg_set;
- __IO uint16_t *reg_clr;
+ __IO uint32_t *reg_clr;
} gpio_t;
-static inline void gpio_write(gpio_t *obj, int value) {
+static inline void gpio_write(gpio_t *obj, int value)
+{
MBED_ASSERT(obj->pin != (PinName)NC);
if (value) {
*obj->reg_set = obj->mask;
@@ -57,7 +58,8 @@
}
}
-static inline int gpio_read(gpio_t *obj) {
+static inline int gpio_read(gpio_t *obj)
+{
MBED_ASSERT(obj->pin != (PinName)NC);
return ((*obj->reg_in & obj->mask) ? 1 : 0);
}
--- a/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/i2c_api.c Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/i2c_api.c Mon Dec 15 09:30:07 2014 +0000
@@ -34,7 +34,7 @@
#include "cmsis.h"
#include "pinmap.h"
-#include "mbed_error.h"
+#include "PeripheralPins.h"
/* Timeout values for flags and events waiting loops. These timeouts are
not based on accurate values, they just guarantee that the application will
@@ -42,28 +42,13 @@
#define FLAG_TIMEOUT ((int)0x1000)
#define LONG_TIMEOUT ((int)0x8000)
-static const PinMap PinMap_I2C_SDA[] = {
- {PB_7, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF1_I2C1)},
- {PB_9, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF4_I2C1)},
- {PB_11, I2C_2, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF6_I2C2)},
- {PB_14, I2C_2, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF5_I2C2)},
- {NC, NC, 0}
-};
-
-static const PinMap PinMap_I2C_SCL[] = {
- {PB_6, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF1_I2C1)},
- {PB_8, I2C_1, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF4_I2C1)},
- {PB_10, I2C_2, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF6_I2C2)},
- {PB_13, I2C_2, STM_PIN_DATA(STM_MODE_AF_OD, GPIO_NOPULL, GPIO_AF5_I2C2)},
- {NC, NC, 0}
-};
-
I2C_HandleTypeDef I2cHandle;
int i2c1_inited = 0;
int i2c2_inited = 0;
-void i2c_init(i2c_t *obj, PinName sda, PinName scl) {
+void i2c_init(i2c_t *obj, PinName sda, PinName scl)
+{
// Determine the I2C to use
I2CName i2c_sda = (I2CName)pinmap_peripheral(sda, PinMap_I2C_SDA);
I2CName i2c_scl = (I2CName)pinmap_peripheral(scl, PinMap_I2C_SCL);
@@ -72,7 +57,7 @@
MBED_ASSERT(obj->i2c != (I2CName)NC);
// Enable I2C1 clock and pinout if not done
- if ((obj->i2c == I2C_1)&& !i2c1_inited) {
+ if ((obj->i2c == I2C_1) && !i2c1_inited) {
i2c1_inited = 1;
__HAL_RCC_I2C1_CONFIG(RCC_I2C1CLKSOURCE_SYSCLK);
__I2C1_CLK_ENABLE();
@@ -83,7 +68,7 @@
pin_mode(scl, OpenDrain);
}
// Enable I2C2 clock and pinout if not done
- if ((obj->i2c == I2C_2)&& !i2c2_inited) {
+ if ((obj->i2c == I2C_2) && !i2c2_inited) {
i2c2_inited = 1;
__I2C2_CLK_ENABLE();
// Configure I2C pins
@@ -100,14 +85,15 @@
i2c_frequency(obj, 100000); // 100 kHz per default
}
-void i2c_frequency(i2c_t *obj, int hz) {
+void i2c_frequency(i2c_t *obj, int hz)
+{
MBED_ASSERT((hz == 100000) || (hz == 400000) || (hz == 1000000));
I2cHandle.Instance = (I2C_TypeDef *)(obj->i2c);
int timeout;
// wait before init
timeout = LONG_TIMEOUT;
- while((__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_BUSY)) && (timeout-- != 0));
+ while ((__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_BUSY)) && (timeout-- != 0));
// Common settings: I2C clock = 32 MHz, Analog filter = ON, Digital filter coefficient = 0
switch (hz) {
@@ -135,7 +121,8 @@
HAL_I2C_Init(&I2cHandle);
}
-inline int i2c_start(i2c_t *obj) {
+inline int i2c_start(i2c_t *obj)
+{
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
int timeout;
@@ -158,7 +145,8 @@
return 0;
}
-inline int i2c_stop(i2c_t *obj) {
+inline int i2c_stop(i2c_t *obj)
+{
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
// Generate the STOP condition
@@ -167,7 +155,8 @@
return 0;
}
-int i2c_read(i2c_t *obj, int address, char *data, int length, int stop) {
+int i2c_read(i2c_t *obj, int address, char *data, int length, int stop)
+{
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
I2cHandle.Instance = (I2C_TypeDef *)(obj->i2c);
int timeout;
@@ -213,7 +202,8 @@
return length;
}
-int i2c_write(i2c_t *obj, int address, const char *data, int length, int stop) {
+int i2c_write(i2c_t *obj, int address, const char *data, int length, int stop)
+{
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
I2cHandle.Instance = (I2C_TypeDef *)(obj->i2c);
int timeout;
@@ -256,7 +246,8 @@
return count;
}
-int i2c_byte_read(i2c_t *obj, int last) {
+int i2c_byte_read(i2c_t *obj, int last)
+{
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
int timeout;
@@ -271,7 +262,8 @@
return (int)i2c->RXDR;
}
-int i2c_byte_write(i2c_t *obj, int data) {
+int i2c_byte_write(i2c_t *obj, int data)
+{
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
int timeout;
@@ -288,12 +280,13 @@
return 1;
}
-void i2c_reset(i2c_t *obj) {
+void i2c_reset(i2c_t *obj)
+{
int timeout;
-
+
// wait before reset
timeout = LONG_TIMEOUT;
- while((__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_BUSY)) && (timeout-- != 0));
+ while ((__HAL_I2C_GET_FLAG(&I2cHandle, I2C_FLAG_BUSY)) && (timeout-- != 0));
if (obj->i2c == I2C_1) {
__I2C1_FORCE_RESET();
@@ -307,7 +300,8 @@
#if DEVICE_I2CSLAVE
-void i2c_slave_address(i2c_t *obj, int idx, uint32_t address, uint32_t mask) {
+void i2c_slave_address(i2c_t *obj, int idx, uint32_t address, uint32_t mask)
+{
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
uint16_t tmpreg;
@@ -325,7 +319,8 @@
i2c->OAR1 |= I2C_OAR1_OA1EN;
}
-void i2c_slave_mode(i2c_t *obj, int enable_slave) {
+void i2c_slave_mode(i2c_t *obj, int enable_slave)
+{
I2C_TypeDef *i2c = (I2C_TypeDef *)(obj->i2c);
uint16_t tmpreg;
@@ -351,7 +346,8 @@
#define WriteGeneral 2 // the master is writing to all slave
#define WriteAddressed 3 // the master is writing to this slave (slave = receiver)
-int i2c_slave_receive(i2c_t *obj) {
+int i2c_slave_receive(i2c_t *obj)
+{
I2cHandle.Instance = (I2C_TypeDef *)(obj->i2c);
int retValue = NoData;
@@ -368,7 +364,8 @@
return (retValue);
}
-int i2c_slave_read(i2c_t *obj, char *data, int length) {
+int i2c_slave_read(i2c_t *obj, char *data, int length)
+{
char size = 0;
while (size < length) data[size++] = (char)i2c_byte_read(obj, 0);
@@ -376,7 +373,8 @@
return size;
}
-int i2c_slave_write(i2c_t *obj, const char *data, int length) {
+int i2c_slave_write(i2c_t *obj, const char *data, int length)
+{
char size = 0;
I2cHandle.Instance = (I2C_TypeDef *)(obj->i2c);
--- a/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/mbed_overrides.c Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/mbed_overrides.c Mon Dec 15 09:30:07 2014 +0000
@@ -28,7 +28,8 @@
#include "cmsis.h"
// This function is called after RAM initialization and before main.
-void mbed_sdk_init() {
+void mbed_sdk_init()
+{
// Update the SystemCoreClock variable.
SystemCoreClockUpdate();
}
--- a/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/objects.h Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/objects.h Mon Dec 15 09:30:07 2014 +0000
@@ -50,8 +50,8 @@
PortName port;
uint32_t mask;
PinDirection direction;
- __IO uint16_t *reg_in;
- __IO uint16_t *reg_out;
+ __IO uint32_t *reg_in;
+ __IO uint32_t *reg_out;
};
struct analogin_s {
--- a/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/pinmap.c Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/pinmap.c Mon Dec 15 09:30:07 2014 +0000
@@ -50,7 +50,8 @@
};
// Enable GPIO clock and return GPIO base address
-uint32_t Set_GPIO_Clock(uint32_t port_idx) {
+uint32_t Set_GPIO_Clock(uint32_t port_idx)
+{
uint32_t gpio_add = 0;
switch (port_idx) {
case PortA:
@@ -83,7 +84,8 @@
/**
* Configure pin (mode, speed, output type and pull-up/pull-down)
*/
-void pin_function(PinName pin, int data) {
+void pin_function(PinName pin, int data)
+{
MBED_ASSERT(pin != (PinName)NC);
// Get the pin informations
uint32_t mode = STM_PIN_MODE(data);
@@ -119,7 +121,8 @@
/**
* Configure pin pull-up/pull-down
*/
-void pin_mode(PinName pin, PinMode mode) {
+void pin_mode(PinName pin, PinMode mode)
+{
MBED_ASSERT(pin != (PinName)NC);
uint32_t port_index = STM_PORT(pin);
uint32_t pin_index = STM_PIN(pin);
@@ -131,7 +134,9 @@
// Configure pull-up/pull-down resistors
uint32_t pupd = (uint32_t)mode;
if (pupd > 2)
+ {
pupd = 0; // Open-drain = No pull-up/No pull-down
+ }
gpio->PUPDR &= (uint32_t)(~(GPIO_PUPDR_PUPD0 << (pin_index * 2)));
gpio->PUPDR |= (uint32_t)(pupd << (pin_index * 2));
--- a/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/port_api.c Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/port_api.c Mon Dec 15 09:30:07 2014 +0000
@@ -38,11 +38,13 @@
// high nibble = port number (0=A, 1=B, 2=C, 3=D, 4=E, 5=F, ...)
// low nibble = pin number
-PinName port_pin(PortName port, int pin_n) {
+PinName port_pin(PortName port, int pin_n)
+{
return (PinName)(pin_n + (port << 4));
}
-void port_init(port_t *obj, PortName port, int mask, PinDirection dir) {
+void port_init(port_t *obj, PortName port, int mask, PinDirection dir)
+{
uint32_t port_index = (uint32_t)port;
// Enable GPIO clock
@@ -59,7 +61,8 @@
port_dir(obj, dir);
}
-void port_dir(port_t *obj, PinDirection dir) {
+void port_dir(port_t *obj, PinDirection dir)
+{
uint32_t i;
obj->direction = dir;
for (i = 0; i < 16; i++) { // Process all pins
@@ -73,7 +76,8 @@
}
}
-void port_mode(port_t *obj, PinMode mode) {
+void port_mode(port_t *obj, PinMode mode)
+{
uint32_t i;
for (i = 0; i < 16; i++) { // Process all pins
if (obj->mask & (1 << i)) { // If the pin is used
@@ -82,11 +86,13 @@
}
}
-void port_write(port_t *obj, int value) {
+void port_write(port_t *obj, int value)
+{
*obj->reg_out = (*obj->reg_out & ~obj->mask) | (value & obj->mask);
}
-int port_read(port_t *obj) {
+int port_read(port_t *obj)
+{
if (obj->direction == PIN_OUTPUT) {
return (*obj->reg_out & obj->mask);
} else { // PIN_INPUT
--- a/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/pwmout_api.c Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/pwmout_api.c Mon Dec 15 09:30:07 2014 +0000
@@ -34,34 +34,12 @@
#include "cmsis.h"
#include "pinmap.h"
#include "mbed_error.h"
-
-// TIM21 cannot be used because already used by the us_ticker
-static const PinMap PinMap_PWM[] = {
- {PA_0, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM2)}, // TIM2_CH1
- {PA_1, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM2)}, // TIM2_CH2
-// {PA_2, PWM_21, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_TIM21)}, // TIM21_CH1
-// {PA_2, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM2)}, // TIM2_CH3 - used by STDIO TX
-// {PA_3, PWM_21, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_TIM21)}, // TIM21_CH2
-// {PA_3, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM2)}, // TIM2_CH4 - used by STDIO RX
- {PA_5, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_TIM2)}, // TIM2_CH1 - used also to drive the LED
- {PA_6, PWM_22, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_TIM22)}, // TIM22_CH1
- {PA_7, PWM_22, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_TIM22)}, // TIM22_CH2
- {PA_15, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_TIM2)}, // TIM2_CH1
- {PB_3, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM2)}, // TIM2_CH2
- {PB_4, PWM_22, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_TIM22)}, // TIM22_CH1
- {PB_5, PWM_22, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_TIM22)}, // TIM22_CH2
- {PB_10, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM2)}, // TIM2_CH3
- {PB_11, PWM_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_TIM2)}, // TIM2_CH4
-// {PB_13, PWM_21, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_TIM21)}, // TIM21_CH1
-// {PB_14, PWM_21, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF6_TIM21)}, // TIM21_CH2
- {PC_6, PWM_22, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_TIM22)}, // TIM22_CH1
- {PC_7, PWM_22, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_TIM22)}, // TIM22_CH2
- {NC, NC, 0}
-};
+#include "PeripheralPins.h"
static TIM_HandleTypeDef TimHandle;
-void pwmout_init(pwmout_t* obj, PinName pin) {
+void pwmout_init(pwmout_t* obj, PinName pin)
+{
// Get the peripheral name from the pin and assign it to the object
obj->pwm = (PWMName)pinmap_peripheral(pin, PinMap_PWM);
@@ -84,12 +62,14 @@
pwmout_period_us(obj, 20000); // 20 ms per default
}
-void pwmout_free(pwmout_t* obj) {
+void pwmout_free(pwmout_t* obj)
+{
// Configure GPIO
pin_function(obj->pin, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
}
-void pwmout_write(pwmout_t* obj, float value) {
+void pwmout_write(pwmout_t* obj, float value)
+{
TIM_OC_InitTypeDef sConfig;
int channel = 0;
@@ -112,22 +92,18 @@
switch (obj->pin) {
// Channels 1
case PA_0:
-// case PA_2:
case PA_5:
case PA_6:
case PA_15:
case PB_4:
-// case PB_13:
case PC_6:
channel = TIM_CHANNEL_1;
break;
// Channels 2
case PA_1:
-// case PA_3:
case PA_7:
case PB_3:
case PB_5:
-// case PB_14:
case PC_7:
channel = TIM_CHANNEL_2;
break;
@@ -149,7 +125,8 @@
HAL_TIM_PWM_Start(&TimHandle, channel);
}
-float pwmout_read(pwmout_t* obj) {
+float pwmout_read(pwmout_t* obj)
+{
float value = 0;
if (obj->period > 0) {
value = (float)(obj->pulse) / (float)(obj->period);
@@ -157,15 +134,18 @@
return ((value > (float)1.0) ? (float)(1.0) : (value));
}
-void pwmout_period(pwmout_t* obj, float seconds) {
+void pwmout_period(pwmout_t* obj, float seconds)
+{
pwmout_period_us(obj, seconds * 1000000.0f);
}
-void pwmout_period_ms(pwmout_t* obj, int ms) {
+void pwmout_period_ms(pwmout_t* obj, int ms)
+{
pwmout_period_us(obj, ms * 1000);
}
-void pwmout_period_us(pwmout_t* obj, int us) {
+void pwmout_period_us(pwmout_t* obj, int us)
+{
TimHandle.Instance = (TIM_TypeDef *)(obj->pwm);
float dc = pwmout_read(obj);
@@ -173,7 +153,7 @@
__HAL_TIM_DISABLE(&TimHandle);
TimHandle.Init.Period = us - 1;
- TimHandle.Init.Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 µs tick
+ TimHandle.Init.Prescaler = (uint16_t)(SystemCoreClock / 1000000) - 1; // 1 us tick
TimHandle.Init.ClockDivision = 0;
TimHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
HAL_TIM_PWM_Init(&TimHandle);
@@ -187,15 +167,18 @@
__HAL_TIM_ENABLE(&TimHandle);
}
-void pwmout_pulsewidth(pwmout_t* obj, float seconds) {
+void pwmout_pulsewidth(pwmout_t* obj, float seconds)
+{
pwmout_pulsewidth_us(obj, seconds * 1000000.0f);
}
-void pwmout_pulsewidth_ms(pwmout_t* obj, int ms) {
+void pwmout_pulsewidth_ms(pwmout_t* obj, int ms)
+{
pwmout_pulsewidth_us(obj, ms * 1000);
}
-void pwmout_pulsewidth_us(pwmout_t* obj, int us) {
+void pwmout_pulsewidth_us(pwmout_t* obj, int us)
+{
float value = (float)us / (float)obj->period;
pwmout_write(obj, value);
}
--- a/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/rtc_api.c Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/rtc_api.c Mon Dec 15 09:30:07 2014 +0000
@@ -37,7 +37,8 @@
static RTC_HandleTypeDef RtcHandle;
-void rtc_init(void) {
+void rtc_init(void)
+{
RCC_OscInitTypeDef RCC_OscInitStruct;
uint32_t rtc_freq = 0;
@@ -58,8 +59,8 @@
// Enable LSE Oscillator
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_LSE;
- RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; /* Mandatory, otherwise the PLL is reconfigured! */
- RCC_OscInitStruct.LSEState = RCC_LSE_ON; /* External 32.768 kHz clock on OSC_IN/OSC_OUT */
+ RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE; // Mandatory, otherwise the PLL is reconfigured!
+ RCC_OscInitStruct.LSEState = RCC_LSE_ON; // External 32.768 kHz clock on OSC_IN/OSC_OUT
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) == HAL_OK) {
// Connect LSE to RTC
__HAL_RCC_RTC_CLKPRESCALER(RCC_RTCCLKSOURCE_LSE);
@@ -77,7 +78,7 @@
// Connect LSI to RTC
__HAL_RCC_RTC_CLKPRESCALER(RCC_RTCCLKSOURCE_LSI);
__HAL_RCC_RTC_CONFIG(RCC_RTCCLKSOURCE_LSI);
- // [TODO] This value is LSI typical value. To be measured precisely using a timer input capture
+ // This value is LSI typical value. To be measured precisely using a timer input capture for example.
rtc_freq = 32000;
}
@@ -96,7 +97,8 @@
}
}
-void rtc_free(void) {
+void rtc_free(void)
+{
// Enable Power clock
__PWR_CLK_ENABLE();
@@ -121,7 +123,8 @@
rtc_inited = 0;
}
-int rtc_isenabled(void) {
+int rtc_isenabled(void)
+{
return rtc_inited;
}
@@ -142,7 +145,8 @@
tm_yday days since January 1 0-365
tm_isdst Daylight Saving Time flag
*/
-time_t rtc_read(void) {
+time_t rtc_read(void)
+{
RTC_DateTypeDef dateStruct;
RTC_TimeTypeDef timeStruct;
struct tm timeinfo;
@@ -169,7 +173,8 @@
return t;
}
-void rtc_write(time_t t) {
+void rtc_write(time_t t)
+{
RTC_DateTypeDef dateStruct;
RTC_TimeTypeDef timeStruct;
--- a/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/serial_api.c Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/serial_api.c Mon Dec 15 09:30:07 2014 +0000
@@ -35,28 +35,7 @@
#include "cmsis.h"
#include "pinmap.h"
#include <string.h>
-
-static const PinMap PinMap_UART_TX[] = {
- {PA_2, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)},
- {PA_9, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART1)},
- {PA_14, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)}, // Warning: this pin is used by SWCLK
- {PB_6, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_USART1)},
- {PB_10, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_LPUART1)},
- {PC_4, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_LPUART1)},
- {PC_10, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_LPUART1)},
- {NC, NC, 0}
-};
-
-static const PinMap PinMap_UART_RX[] = {
- {PA_3, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)},
- {PA_10, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART1)},
- {PA_15, UART_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_USART2)},
- {PB_7, UART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_USART1)},
- {PB_11, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF4_LPUART1)},
- {PC_5, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_LPUART1)},
- {PC_11, LPUART_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_LPUART1)},
- {NC, NC, 0}
-};
+#include "PeripheralPins.h"
#define UART_NUM (3)
@@ -69,7 +48,8 @@
int stdio_uart_inited = 0;
serial_t stdio_uart;
-static void init_uart(serial_t *obj) {
+static void init_uart(serial_t *obj)
+{
UartHandle.Instance = (USART_TypeDef *)(obj->uart);
// [TODO] Workaround to be removed after HAL driver is corrected
@@ -94,11 +74,12 @@
// Disable the reception overrun detection
UartHandle.AdvancedInit.AdvFeatureInit = UART_ADVFEATURE_RXOVERRUNDISABLE_INIT;
UartHandle.AdvancedInit.OverrunDisable = UART_ADVFEATURE_OVERRUN_DISABLE;
-
+
HAL_UART_Init(&UartHandle);
}
-void serial_init(serial_t *obj, PinName tx, PinName rx) {
+void serial_init(serial_t *obj, PinName tx, PinName rx)
+{
// Determine the UART to use (UART_1, UART_2, ...)
UARTName uart_tx = (UARTName)pinmap_peripheral(tx, PinMap_UART_TX);
UARTName uart_rx = (UARTName)pinmap_peripheral(rx, PinMap_UART_RX);
@@ -150,7 +131,8 @@
}
}
-void serial_free(serial_t *obj) {
+void serial_free(serial_t *obj)
+{
// Reset UART and disable clock
if (obj->uart == UART_1) {
__USART1_FORCE_RESET();
@@ -177,12 +159,14 @@
serial_irq_ids[obj->index] = 0;
}
-void serial_baud(serial_t *obj, int baudrate) {
+void serial_baud(serial_t *obj, int baudrate)
+{
obj->baudrate = baudrate;
init_uart(obj);
}
-void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits) {
+void serial_format(serial_t *obj, int data_bits, SerialParity parity, int stop_bits)
+{
if (data_bits == 9) {
obj->databits = UART_WORDLENGTH_9B;
} else {
@@ -216,7 +200,8 @@
* INTERRUPTS HANDLING
******************************************************************************/
-static void uart_irq(UARTName name, int id) {
+static void uart_irq(UARTName name, int id)
+{
UartHandle.Instance = (USART_TypeDef *)name;
if (serial_irq_ids[id] != 0) {
if (__HAL_UART_GET_FLAG(&UartHandle, UART_FLAG_TC) != RESET) {
@@ -230,24 +215,29 @@
}
}
-static void uart1_irq(void) {
+static void uart1_irq(void)
+{
uart_irq(UART_1, 0);
}
-static void uart2_irq(void) {
+static void uart2_irq(void)
+{
uart_irq(UART_2, 1);
}
-static void lpuart1_irq(void) {
+static void lpuart1_irq(void)
+{
uart_irq(LPUART_1, 2);
}
-void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id) {
+void serial_irq_handler(serial_t *obj, uart_irq_handler handler, uint32_t id)
+{
irq_handler = handler;
serial_irq_ids[obj->index] = id;
}
-void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable) {
+void serial_irq_set(serial_t *obj, SerialIrq irq, uint32_t enable)
+{
IRQn_Type irq_n = (IRQn_Type)0;
uint32_t vector = 0;
@@ -302,19 +292,22 @@
* READ/WRITE
******************************************************************************/
-int serial_getc(serial_t *obj) {
+int serial_getc(serial_t *obj)
+{
USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
while (!serial_readable(obj));
return (int)(uart->RDR & (uint32_t)0xFF);
}
-void serial_putc(serial_t *obj, int c) {
+void serial_putc(serial_t *obj, int c)
+{
USART_TypeDef *uart = (USART_TypeDef *)(obj->uart);
while (!serial_writable(obj));
uart->TDR = (uint32_t)(c & (uint32_t)0xFF);
}
-int serial_readable(serial_t *obj) {
+int serial_readable(serial_t *obj)
+{
int status;
UartHandle.Instance = (USART_TypeDef *)(obj->uart);
// Check if data is received
@@ -322,7 +315,8 @@
return status;
}
-int serial_writable(serial_t *obj) {
+int serial_writable(serial_t *obj)
+{
int status;
UartHandle.Instance = (USART_TypeDef *)(obj->uart);
// Check if data is transmitted
@@ -330,22 +324,26 @@
return status;
}
-void serial_clear(serial_t *obj) {
+void serial_clear(serial_t *obj)
+{
UartHandle.Instance = (USART_TypeDef *)(obj->uart);
__HAL_UART_CLEAR_IT(&UartHandle, UART_CLEAR_TCF);
__HAL_UART_SEND_REQ(&UartHandle, UART_RXDATA_FLUSH_REQUEST);
}
-void serial_pinout_tx(PinName tx) {
+void serial_pinout_tx(PinName tx)
+{
pinmap_pinout(tx, PinMap_UART_TX);
}
-void serial_break_set(serial_t *obj) {
+void serial_break_set(serial_t *obj)
+{
UartHandle.Instance = (USART_TypeDef *)(obj->uart);
__HAL_UART_SEND_REQ(&UartHandle, UART_SENDBREAK_REQUEST);
}
-void serial_break_clear(serial_t *obj) {
+void serial_break_clear(serial_t *obj)
+{
}
#endif
--- a/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/sleep.c Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/sleep.c Mon Dec 15 09:30:07 2014 +0000
@@ -35,31 +35,27 @@
static TIM_HandleTypeDef TimMasterHandle;
-void sleep(void) {
- // Disable us_ticker update interrupt
+void sleep(void)
+{
TimMasterHandle.Instance = TIM21;
- __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_UPDATE);
+
+ // Disable HAL tick interrupt
+ __HAL_TIM_DISABLE_IT(&TimMasterHandle, (TIM_IT_CC2 | TIM_IT_UPDATE));
// Request to enter SLEEP mode
HAL_PWR_EnterSLEEPMode(PWR_MAINREGULATOR_ON, PWR_SLEEPENTRY_WFI);
- // Re-enable us_ticker update interrupt
- __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_UPDATE);
+ // Enable HAL tick interrupt
+ __HAL_TIM_ENABLE_IT(&TimMasterHandle, (TIM_IT_CC2 | TIM_IT_UPDATE));
}
-void deepsleep(void) {
- // Disable us_ticker update interrupt
- TimMasterHandle.Instance = TIM21;
- __HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_UPDATE);
-
+void deepsleep(void)
+{
// Request to enter STOP mode with regulator in low power mode
HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
// After wake-up from STOP reconfigure the PLL
SetSysClock();
-
- // Re-enable us_ticker update interrupt
- __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_UPDATE);
}
#endif
--- a/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/spi_api.c Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/spi_api.c Mon Dec 15 09:30:07 2014 +0000
@@ -35,44 +35,12 @@
#include <math.h>
#include "cmsis.h"
#include "pinmap.h"
-
-static const PinMap PinMap_SPI_MOSI[] = {
- {PA_7, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
- {PA_12, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
- {PB_5, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
- {PB_15, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI2)},
- {PC_3, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_SPI2)},
- {NC, NC, 0}
-};
-
-static const PinMap PinMap_SPI_MISO[] = {
- {PA_6, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
- {PA_11, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
- {PB_4, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
- {PB_14, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI2)},
- {PC_2, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF2_SPI2)},
- {NC, NC, 0}
-};
-
-static const PinMap PinMap_SPI_SCLK[] = {
- {PA_5, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
- {PB_3, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
- {PB_10, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI2)},
- {PB_13, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI2)},
- {NC, NC, 0}
-};
-
-static const PinMap PinMap_SPI_SSEL[] = {
- {PA_4, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
- {PA_15, SPI_1, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI1)},
- {PB_9, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF5_SPI2)},
- {PB_12, SPI_2, STM_PIN_DATA(STM_MODE_AF_PP, GPIO_PULLUP, GPIO_AF0_SPI2)},
- {NC, NC, 0}
-};
+#include "PeripheralPins.h"
static SPI_HandleTypeDef SpiHandle;
-static void init_spi(spi_t *obj) {
+static void init_spi(spi_t *obj)
+{
SpiHandle.Instance = (SPI_TypeDef *)(obj->spi);
__HAL_SPI_DISABLE(&SpiHandle);
@@ -94,7 +62,8 @@
__HAL_SPI_ENABLE(&SpiHandle);
}
-void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel) {
+void spi_init(spi_t *obj, PinName mosi, PinName miso, PinName sclk, PinName ssel)
+{
// Determine the SPI to use
SPIName spi_mosi = (SPIName)pinmap_peripheral(mosi, PinMap_SPI_MOSI);
SPIName spi_miso = (SPIName)pinmap_peripheral(miso, PinMap_SPI_MISO);
@@ -143,7 +112,8 @@
init_spi(obj);
}
-void spi_free(spi_t *obj) {
+void spi_free(spi_t *obj)
+{
// Reset SPI and disable clock
if (obj->spi == SPI_1) {
__SPI1_FORCE_RESET();
@@ -164,7 +134,8 @@
pin_function(obj->pin_ssel, STM_PIN_DATA(STM_MODE_INPUT, GPIO_NOPULL, 0));
}
-void spi_format(spi_t *obj, int bits, int mode, int slave) {
+void spi_format(spi_t *obj, int bits, int mode, int slave)
+{
// Save new values
if (bits == 16) {
obj->bits = SPI_DATASIZE_16BIT;
@@ -202,7 +173,8 @@
init_spi(obj);
}
-void spi_frequency(spi_t *obj, int hz) {
+void spi_frequency(spi_t *obj, int hz)
+{
// Note: The frequencies are obtained with SPI1 clock = 32 MHz (APB2 clock)
if (hz < 250000) {
obj->br_presc = SPI_BAUDRATEPRESCALER_256; // 125 kHz
@@ -224,7 +196,8 @@
init_spi(obj);
}
-static inline int ssp_readable(spi_t *obj) {
+static inline int ssp_readable(spi_t *obj)
+{
int status;
SpiHandle.Instance = (SPI_TypeDef *)(obj->spi);
// Check if data is received
@@ -232,7 +205,8 @@
return status;
}
-static inline int ssp_writeable(spi_t *obj) {
+static inline int ssp_writeable(spi_t *obj)
+{
int status;
SpiHandle.Instance = (SPI_TypeDef *)(obj->spi);
// Check if data is transmitted
@@ -240,47 +214,55 @@
return status;
}
-static inline void ssp_write(spi_t *obj, int value) {
+static inline void ssp_write(spi_t *obj, int value)
+{
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
while (!ssp_writeable(obj));
spi->DR = (uint16_t)value;
}
-static inline int ssp_read(spi_t *obj) {
+static inline int ssp_read(spi_t *obj)
+{
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
while (!ssp_readable(obj));
return (int)spi->DR;
}
-static inline int ssp_busy(spi_t *obj) {
+static inline int ssp_busy(spi_t *obj)
+{
int status;
SpiHandle.Instance = (SPI_TypeDef *)(obj->spi);
status = ((__HAL_SPI_GET_FLAG(&SpiHandle, SPI_FLAG_BSY) != RESET) ? 1 : 0);
return status;
}
-int spi_master_write(spi_t *obj, int value) {
+int spi_master_write(spi_t *obj, int value)
+{
ssp_write(obj, value);
return ssp_read(obj);
}
-int spi_slave_receive(spi_t *obj) {
+int spi_slave_receive(spi_t *obj)
+{
return (ssp_readable(obj) ? 1 : 0);
};
-int spi_slave_read(spi_t *obj) {
+int spi_slave_read(spi_t *obj)
+{
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
while (!ssp_readable(obj));
return (int)spi->DR;
}
-void spi_slave_write(spi_t *obj, int value) {
+void spi_slave_write(spi_t *obj, int value)
+{
SPI_TypeDef *spi = (SPI_TypeDef *)(obj->spi);
while (!ssp_writeable(obj));
spi->DR = (uint16_t)value;
}
-int spi_busy(spi_t *obj) {
+int spi_busy(spi_t *obj)
+{
return ssp_busy(obj);
}
--- a/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/us_ticker.c Mon Dec 15 09:15:06 2014 +0000
+++ b/targets/hal/TARGET_STM/TARGET_DISCO_L053C8/us_ticker.c Mon Dec 15 09:30:07 2014 +0000
@@ -29,80 +29,35 @@
#include "us_ticker_api.h"
#include "PeripheralNames.h"
-// Timer selection:
-#define TIM_MST TIM21
-#define TIM_MST_IRQ TIM21_IRQn
-#define TIM_MST_RCC __TIM21_CLK_ENABLE()
+// Timer selection
+#define TIM_MST TIM21
static TIM_HandleTypeDef TimMasterHandle;
+static int us_ticker_inited = 0;
-static int us_ticker_inited = 0;
-static volatile uint32_t SlaveCounter = 0;
-static volatile uint32_t oc_int_part = 0;
-static volatile uint16_t oc_rem_part = 0;
+volatile uint32_t SlaveCounter = 0;
+volatile uint32_t oc_int_part = 0;
+volatile uint16_t oc_rem_part = 0;
-void set_compare(uint16_t count) {
+void set_compare(uint16_t count)
+{
+ TimMasterHandle.Instance = TIM_MST;
// Set new output compare value
__HAL_TIM_SetCompare(&TimMasterHandle, TIM_CHANNEL_1, count);
// Enable IT
__HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_CC1);
}
-static void tim_irq_handler(void) {
- uint16_t cval = TIM_MST->CNT;
-
- // Clear Update interrupt flag
- if (__HAL_TIM_GET_FLAG(&TimMasterHandle, TIM_FLAG_UPDATE) == SET) {
- __HAL_TIM_CLEAR_FLAG(&TimMasterHandle, TIM_FLAG_UPDATE);
- SlaveCounter++;
- }
-
- // Clear CC1 interrupt flag
- if (__HAL_TIM_GET_FLAG(&TimMasterHandle, TIM_FLAG_CC1) == SET) {
- __HAL_TIM_CLEAR_FLAG(&TimMasterHandle, TIM_FLAG_CC1);
- if (oc_rem_part > 0) {
- set_compare(oc_rem_part); // Finish the remaining time left
- oc_rem_part = 0;
- } else {
- if (oc_int_part > 0) {
- set_compare(0xFFFF);
- oc_rem_part = cval; // To finish the counter loop the next time
- oc_int_part--;
- } else {
- us_ticker_irq_handler();
- }
- }
- }
-}
-
-void us_ticker_init(void) {
+void us_ticker_init(void)
+{
if (us_ticker_inited) return;
us_ticker_inited = 1;
- // Enable timer clock
- TIM_MST_RCC;
-
- // Configure time base
- TimMasterHandle.Instance = TIM_MST;
- TimMasterHandle.Init.Period = 0xFFFF;
- TimMasterHandle.Init.Prescaler = (uint32_t)(SystemCoreClock / 1000000) - 1; // 1 �s tick
- TimMasterHandle.Init.ClockDivision = 0;
- TimMasterHandle.Init.CounterMode = TIM_COUNTERMODE_UP;
- HAL_TIM_Base_Init(&TimMasterHandle);
-
- // Configure interrupts
- __HAL_TIM_ENABLE_IT(&TimMasterHandle, TIM_IT_UPDATE);
-
- // Update interrupt used for 32-bit counter
- // Output compare interrupt used for timeout feature
- NVIC_SetVector(TIM_MST_IRQ, (uint32_t)tim_irq_handler);
- NVIC_EnableIRQ(TIM_MST_IRQ);
-
- // Enable timer
- HAL_TIM_Base_Start(&TimMasterHandle);
+ HAL_InitTick(0); // The passed value is not used
}
-uint32_t us_ticker_read() {
+uint32_t us_ticker_read()
+{
uint32_t counter, counter2;
if (!us_ticker_inited) us_ticker_init();
// A situation might appear when Master overflows right after Slave is read and before the
@@ -123,7 +78,8 @@
return counter2;
}
-void us_ticker_set_interrupt(timestamp_t timestamp) {
+void us_ticker_set_interrupt(timestamp_t timestamp)
+{
int delta = (int)((uint32_t)timestamp - us_ticker_read());
uint16_t cval = TIM_MST->CNT;
@@ -142,10 +98,16 @@
}
}
-void us_ticker_disable_interrupt(void) {
+void us_ticker_disable_interrupt(void)
+{
+ TimMasterHandle.Instance = TIM_MST;
__HAL_TIM_DISABLE_IT(&TimMasterHandle, TIM_IT_CC1);
}
-void us_ticker_clear_interrupt(void) {
- __HAL_TIM_CLEAR_FLAG(&TimMasterHandle, TIM_FLAG_CC1);
+void us_ticker_clear_interrupt(void)
+{
+ TimMasterHandle.Instance = TIM_MST;
+ if (__HAL_TIM_GET_FLAG(&TimMasterHandle, TIM_FLAG_CC1) == SET) {
+ __HAL_TIM_CLEAR_FLAG(&TimMasterHandle, TIM_FLAG_CC1);
+ }
}