1 files changed, 33 insertions, 0 deletions
diff --git a/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4XX/cmsis_nvic.c b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4XX/cmsis_nvic.c
new file mode 100644
index 0000000000..1088accb35
--- /dev/null
+++ b/tmk_core/tool/mbed/mbed-sdk/libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F4XX/cmsis_nvic.c
@@ -0,0 +1,33 @@
+/* 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
+
+static unsigned char vtor_relocated;
+
+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 (!vtor_relocated) {
+        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;
+        vtor_relocated = 1;
+    }
+    vectors[IRQn + 16] = vector;
+}
+
+uint32_t NVIC_GetVector(IRQn_Type IRQn) {
+    uint32_t *vectors = (uint32_t*)SCB->VTOR;
+    return vectors[IRQn + 16];
+}
+