david dicarlo
mbed library sources: Modified to operate FRDM-KL25Z at 48MHz from internal 32kHz oscillator (nothing else changed).
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The only file that changed is: mbed-src-FLL48/targets/cmsis/TARGET_Freescale/TARGET_KL25Z/system_MKL25Z4.h
Diff: targets/cmsis/TARGET_STM/TARGET_STM32F4XX/cmsis_nvic.c
- Revision:
- 20:4263a77256ae
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/targets/cmsis/TARGET_STM/TARGET_STM32F4XX/cmsis_nvic.c Tue Sep 10 15:14:19 2013 +0300
@@ -0,0 +1,31 @@
+/* mbed Microcontroller Library - cmsis_nvic for STM32F4
+ * Copyright (c) 2009-2011 ARM Limited. All rights reserved.
+ *
+ * CMSIS-style functionality to support dynamic vectors
+ */
+#include "cmsis_nvic.h"
+
+#define NVIC_RAM_VECTOR_ADDRESS (0x20000000) // Location of vectors in RAM
+#define NVIC_FLASH_VECTOR_ADDRESS (0x0) // Initial vector position in flash
+
+void NVIC_SetVector(IRQn_Type IRQn, uint32_t vector) {
+ uint32_t *vectors = (uint32_t*)SCB->VTOR;
+ uint32_t i;
+
+ // Copy and switch to dynamic vectors if the first time called
+ if (SCB->VTOR == NVIC_FLASH_VECTOR_ADDRESS) {
+ uint32_t *old_vectors = vectors;
+ vectors = (uint32_t*)NVIC_RAM_VECTOR_ADDRESS;
+ for (i=0; i<NVIC_NUM_VECTORS; i++) {
+ vectors[i] = old_vectors[i];
+ }
+ SCB->VTOR = (uint32_t)NVIC_RAM_VECTOR_ADDRESS;
+ }
+ vectors[IRQn + 16] = vector;
+}
+
+uint32_t NVIC_GetVector(IRQn_Type IRQn) {
+ uint32_t *vectors = (uint32_t*)SCB->VTOR;
+ return vectors[IRQn + 16];
+}
+