ADD: relocate interrupts to sram

r2axz · Dec 1, 2020 · e142c45 · e142c45
1 parent a5e220b
commit e142c45
Showing 1 changed file with 9 additions and 0 deletions.
diff --git a/system_interrupts.c b/system_interrupts.c
@@ -1,5 +1,14 @@
+#include <string.h>
+#include <stm32f1xx.h>
 #include "system_interrupts.h"
 
+#define SYSTEM_INTERRUPTS_COUNT             68
+#define SYSTEM_INTERRUPTS_TABLE_ALIGNMENT   0x200
+
+static volatile void *_sram_interrupt_table[SYSTEM_INTERRUPTS_COUNT] __attribute__ ((aligned(SYSTEM_INTERRUPTS_TABLE_ALIGNMENT)));
+
 void system_interrupts_init() {
+    memcpy(_sram_interrupt_table, (const void *)SCB->VTOR, sizeof(_sram_interrupt_table));
+    SCB->VTOR = (uint32_t)_sram_interrupt_table;
     NVIC_SetPriorityGrouping(SYSTEM_INTERRUPTS_PRIORITY_GROUPING);
 }