Peter Drescher / mbed-F401

mbed library with additional peripherals for ST F401 board

Fork of mbed-src by mbed official

This mbed LIB has additional peripherals for ST F401 board

  • UART2 : PA_3 rx, PA_2 tx
  • UART3 : PC_7 rx, PC_6 tx
  • I2C2 : PB_3 SDA, PB_10 SCL
  • I2C3 : PB_4 SDA, PA_8 SCL

targets/cmsis/TARGET_STM/TARGET_NUCLEO_F030R8/cmsis_nvic.c@77:b5886236e6f0, 2014-01-27 (annotated)

Committer:
mbed_official
Date:
Mon Jan 27 15:30:04 2014 +0000
Revision:
77:b5886236e6f0
Parent:
76:aeb1df146756 
Synchronized with git revision 84a8f2bcd4fff802c20a78cc2edf304135d243d2



Full URL: https://github.com/mbedmicro/mbed/commit/84a8f2bcd4fff802c20a78cc2edf304135d243d2/

Who changed what in which revision?

UserRevisionLine numberNew contents of line
mbed_official 76:aeb1df146756 1 /* mbed Microcontroller Library
mbed_official 76:aeb1df146756 2 * CMSIS-style functionality to support dynamic vectors
mbed_official 76:aeb1df146756 3 *******************************************************************************
mbed_official 76:aeb1df146756 4 * Copyright (c) 2014, STMicroelectronics
mbed_official 76:aeb1df146756 5 * All rights reserved.
mbed_official 76:aeb1df146756 6 *
mbed_official 76:aeb1df146756 7 * Redistribution and use in source and binary forms, with or without
mbed_official 76:aeb1df146756 8 * modification, are permitted provided that the following conditions are met:
mbed_official 76:aeb1df146756 9 *
mbed_official 76:aeb1df146756 10 * 1. Redistributions of source code must retain the above copyright notice,
mbed_official 76:aeb1df146756 11 * this list of conditions and the following disclaimer.
mbed_official 76:aeb1df146756 12 * 2. Redistributions in binary form must reproduce the above copyright notice,
mbed_official 76:aeb1df146756 13 * this list of conditions and the following disclaimer in the documentation
mbed_official 76:aeb1df146756 14 * and/or other materials provided with the distribution.
mbed_official 76:aeb1df146756 15 * 3. Neither the name of STMicroelectronics nor the names of its contributors
mbed_official 76:aeb1df146756 16 * may be used to endorse or promote products derived from this software
mbed_official 76:aeb1df146756 17 * without specific prior written permission.
mbed_official 76:aeb1df146756 18 *
mbed_official 76:aeb1df146756 19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
mbed_official 76:aeb1df146756 20 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
mbed_official 76:aeb1df146756 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
mbed_official 76:aeb1df146756 22 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
mbed_official 76:aeb1df146756 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
mbed_official 76:aeb1df146756 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
mbed_official 76:aeb1df146756 25 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
mbed_official 76:aeb1df146756 26 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
mbed_official 76:aeb1df146756 27 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
mbed_official 76:aeb1df146756 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
mbed_official 76:aeb1df146756 29 *******************************************************************************
mbed_official 76:aeb1df146756 30 */
mbed_official 76:aeb1df146756 31 #include "cmsis_nvic.h"
mbed_official 76:aeb1df146756 32
mbed_official 76:aeb1df146756 33 #define NVIC_RAM_VECTOR_ADDRESS (0x20000000) // Vectors positioned at start of RAM
mbed_official 76:aeb1df146756 34 #define NVIC_FLASH_VECTOR_ADDRESS (0x08000000) // Initial vector position in flash
mbed_official 76:aeb1df146756 35
mbed_official 76:aeb1df146756 36 static unsigned char vtor_remap = 0; // To keep track that the vectors remap is done
mbed_official 76:aeb1df146756 37
mbed_official 76:aeb1df146756 38 void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) {
mbed_official 76:aeb1df146756 39 int i;
mbed_official 76:aeb1df146756 40 // Space for dynamic vectors, initialised to allocate in R/W
mbed_official 77:b5886236e6f0 41 static volatile uint32_t *vectors = (uint32_t *)NVIC_RAM_VECTOR_ADDRESS;
mbed_official 76:aeb1df146756 42
mbed_official 76:aeb1df146756 43 // Copy and switch to dynamic vectors if first time called
mbed_official 76:aeb1df146756 44 if (vtor_remap == 0) {
mbed_official 76:aeb1df146756 45 uint32_t *old_vectors = (uint32_t *)NVIC_FLASH_VECTOR_ADDRESS;
mbed_official 76:aeb1df146756 46 for (i = 0; i < NVIC_NUM_VECTORS; i++) {
mbed_official 76:aeb1df146756 47 vectors[i] = old_vectors[i];
mbed_official 76:aeb1df146756 48 }
mbed_official 77:b5886236e6f0 49 SYSCFG->CFGR1 |= 0x03; // Embedded SRAM mapped at 0x00000000
mbed_official 76:aeb1df146756 50 vtor_remap = 1; // The vectors remap is done
mbed_official 76:aeb1df146756 51 }
mbed_official 76:aeb1df146756 52
mbed_official 76:aeb1df146756 53 // Set the vector
mbed_official 76:aeb1df146756 54 vectors[IRQn + 16] = vector;
mbed_official 76:aeb1df146756 55 }
mbed_official 76:aeb1df146756 56
mbed_official 76:aeb1df146756 57 uint32_t NVIC_GetVector(IRQn_Type IRQn) {
mbed_official 76:aeb1df146756 58 uint32_t *vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
mbed_official 76:aeb1df146756 59 // Return the vector
mbed_official 76:aeb1df146756 60 return vectors[IRQn + 16];
mbed_official 76:aeb1df146756 61 }