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Superseded
This library was superseded by mbed-dev - https://os.mbed.com/users/mbed_official/code/mbed-dev/.
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The official Mbed 2 C/C++ SDK provides the software platform and libraries to build your applications.
Last commit 20 Feb 2019 by 
mbed official
Diff: targets/cmsis/TARGET_STM/TARGET_STM32L0/TARGET_NUCLEO_L053R8/TOOLCHAIN_GCC_ARM/startup_stm32l053xx.S
- Revision:
- 577:15494b56c2f3
- Parent:
- 489:119543c9f674
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/targets/cmsis/TARGET_STM/TARGET_STM32L0/TARGET_NUCLEO_L053R8/TOOLCHAIN_GCC_ARM/startup_stm32l053xx.S Wed Jul 01 08:15:11 2015 +0100 @@ -0,0 +1,299 @@ +/** + ****************************************************************************** + * @file startup_stm32l053xx.s + * @author MCD Application Team + * @version V1.2.0 + * @date 06-February-2015 + * @brief STM32L053xx Devices vector table for Atollic TrueSTUDIO toolchain. + * This module performs: + * - Set the initial SP + * - Set the initial PC == Reset_Handler, + * - Set the vector table entries with the exceptions ISR address + * - 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. + * + ****************************************************************************** + */ + + .syntax unified + .cpu cortex-m0plus + .fpu softvfp + .thumb + +.global g_pfnVectors +.global Default_Handler + +/* start address for the initialization values of the .data section. +defined in linker script */ +.word _sidata +/* start address for the .data section. defined in linker script */ +.word _sdata +/* end address for the .data section. defined in linker script */ +.word _edata +/* start address for the .bss section. defined in linker script */ +.word _sbss +/* end address for the .bss section. defined in linker script */ +.word _ebss + + .section .text.Reset_Handler + .weak Reset_Handler + .type Reset_Handler, %function +Reset_Handler: + ldr r0, =_estack + mov sp, r0 /* set stack pointer */ + +/* Copy the data segment initializers from flash to SRAM */ + movs r1, #0 + b LoopCopyDataInit + +CopyDataInit: + ldr r3, =_sidata + ldr r3, [r3, r1] + str r3, [r0, r1] + adds r1, r1, #4 + +LoopCopyDataInit: + ldr r0, =_sdata + ldr r3, =_edata + adds r2, r0, r1 + cmp r2, r3 + bcc CopyDataInit + ldr r2, =_sbss + b LoopFillZerobss +/* Zero fill the bss segment. */ +FillZerobss: + movs r3, #0 + str r3, [r2] + adds r2, r2, #4 + + +LoopFillZerobss: + ldr r3, = _ebss + cmp r2, r3 + bcc FillZerobss + +/* Call the clock system intitialization function.*/ + bl SystemInit +/* Call static constructors */ + //bl __libc_init_array +/* Call the application's entry point.*/ + //bl main + bl _start + +LoopForever: + b LoopForever + + +.size Reset_Handler, .-Reset_Handler + +/** + * @brief This is the code that gets called when the processor receives an + * unexpected interrupt. This simply enters an infinite loop, preserving + * the system state for examination by a debugger. + * + * @param None + * @retval : None +*/ + .section .text.Default_Handler,"ax",%progbits +Default_Handler: +Infinite_Loop: + b Infinite_Loop + .size Default_Handler, .-Default_Handler +/****************************************************************************** +* +* The minimal vector table for a Cortex M0. Note that the proper constructs +* must be placed on this to ensure that it ends up at physical address +* 0x0000.0000. +* +******************************************************************************/ + .section .isr_vector,"a",%progbits + .type g_pfnVectors, %object + .size g_pfnVectors, .-g_pfnVectors + + +g_pfnVectors: + .word _estack + .word Reset_Handler + .word NMI_Handler + .word HardFault_Handler + .word 0 + .word 0 + .word 0 + .word 0 + .word 0 + .word 0 + .word 0 + .word SVC_Handler + .word DebugMon_Handler + .word 0 + .word PendSV_Handler + .word SysTick_Handler + .word WWDG_IRQHandler /* Window WatchDog */ + .word PVD_IRQHandler /* PVD through EXTI Line detection */ + .word RTC_IRQHandler /* RTC through the EXTI line */ + .word FLASH_IRQHandler /* FLASH */ + .word RCC_CRS_IRQHandler /* RCC and CRS */ + .word EXTI0_1_IRQHandler /* EXTI Line 0 and 1 */ + .word EXTI2_3_IRQHandler /* EXTI Line 2 and 3 */ + .word EXTI4_15_IRQHandler /* EXTI Line 4 to 15 */ + .word TSC_IRQHandler /* TSC */ + .word DMA1_Channel1_IRQHandler /* DMA1 Channel 1 */ + .word DMA1_Channel2_3_IRQHandler /* DMA1 Channel 2 and Channel 3 */ + .word DMA1_Channel4_5_6_7_IRQHandler /* DMA1 Channel 4, Channel 5, Channel 6 and Channel 7*/ + .word ADC1_COMP_IRQHandler /* ADC1, COMP1 and COMP2 */ + .word LPTIM1_IRQHandler /* LPTIM1 */ + .word 0 /* Reserved */ + .word TIM2_IRQHandler /* TIM2 */ + .word 0 /* Reserved */ + .word TIM6_DAC_IRQHandler /* TIM6 and DAC */ + .word 0 /* Reserved */ + .word 0 /* Reserved */ + .word TIM21_IRQHandler /* TIM21 */ + .word 0 /* Reserved */ + .word TIM22_IRQHandler /* TIM22 */ + .word I2C1_IRQHandler /* I2C1 */ + .word I2C2_IRQHandler /* I2C2 */ + .word SPI1_IRQHandler /* SPI1 */ + .word SPI2_IRQHandler /* SPI2 */ + .word USART1_IRQHandler /* USART1 */ + .word USART2_IRQHandler /* USART2 */ + .word RNG_LPUART1_IRQHandler /* RNG and LPUART1 */ + .word LCD_IRQHandler /* LCD */ + .word USB_IRQHandler /* USB */ + +/******************************************************************************* +* +* Provide weak aliases for each Exception handler to the Default_Handler. +* As they are weak aliases, any function with the same name will override +* this definition. +* +*******************************************************************************/ + + .weak NMI_Handler + .thumb_set NMI_Handler,Default_Handler + + .weak HardFault_Handler + .thumb_set HardFault_Handler,Default_Handler + + .weak SVC_Handler + .thumb_set SVC_Handler,Default_Handler + + .weak DebugMon_Handler + .thumb_set DebugMon_Handler,Default_Handler + + .weak PendSV_Handler + .thumb_set PendSV_Handler,Default_Handler + + .weak SysTick_Handler + .thumb_set SysTick_Handler,Default_Handler + + .weak WWDG_IRQHandler + .thumb_set WWDG_IRQHandler,Default_Handler + + .weak PVD_IRQHandler + .thumb_set PVD_IRQHandler,Default_Handler + + .weak RTC_IRQHandler + .thumb_set RTC_IRQHandler,Default_Handler + + .weak FLASH_IRQHandler + .thumb_set FLASH_IRQHandler,Default_Handler + + .weak RCC_CRS_IRQHandler + .thumb_set RCC_CRS_IRQHandler,Default_Handler + + .weak EXTI0_1_IRQHandler + .thumb_set EXTI0_1_IRQHandler,Default_Handler + + .weak EXTI2_3_IRQHandler + .thumb_set EXTI2_3_IRQHandler,Default_Handler + + .weak EXTI4_15_IRQHandler + .thumb_set EXTI4_15_IRQHandler,Default_Handler + + .weak TSC_IRQHandler + .thumb_set TSC_IRQHandler,Default_Handler + + .weak DMA1_Channel1_IRQHandler + .thumb_set DMA1_Channel1_IRQHandler,Default_Handler + + .weak DMA1_Channel2_3_IRQHandler + .thumb_set DMA1_Channel2_3_IRQHandler,Default_Handler + + .weak DMA1_Channel4_5_6_7_IRQHandler + .thumb_set DMA1_Channel4_5_6_7_IRQHandler,Default_Handler + + .weak ADC1_COMP_IRQHandler + .thumb_set ADC1_COMP_IRQHandler,Default_Handler + + .weak LPTIM1_IRQHandler + .thumb_set LPTIM1_IRQHandler,Default_Handler + + .weak TIM2_IRQHandler + .thumb_set TIM2_IRQHandler,Default_Handler + + .weak TIM6_DAC_IRQHandler + .thumb_set TIM6_DAC_IRQHandler,Default_Handler + + .weak TIM21_IRQHandler + .thumb_set TIM21_IRQHandler,Default_Handler + + .weak TIM22_IRQHandler + .thumb_set TIM22_IRQHandler,Default_Handler + + .weak I2C1_IRQHandler + .thumb_set I2C1_IRQHandler,Default_Handler + + .weak I2C2_IRQHandler + .thumb_set I2C2_IRQHandler,Default_Handler + + .weak SPI1_IRQHandler + .thumb_set SPI1_IRQHandler,Default_Handler + + .weak SPI2_IRQHandler + .thumb_set SPI2_IRQHandler,Default_Handler + + .weak USART1_IRQHandler + .thumb_set USART1_IRQHandler,Default_Handler + + .weak USART2_IRQHandler + .thumb_set USART2_IRQHandler,Default_Handler + + .weak RNG_LPUART1_IRQHandler + .thumb_set RNG_LPUART1_IRQHandler,Default_Handler + + .weak LCD_IRQHandler + .thumb_set LCD_IRQHandler,Default_Handler + + .weak USB_IRQHandler + .thumb_set USB_IRQHandler,Default_Handler + + + +/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/ +
