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-rw-r--r--init_high.cpp27
1 files changed, 27 insertions, 0 deletions
diff --git a/init_high.cpp b/init_high.cpp
new file mode 100644
index 0000000..235a649
--- /dev/null
+++ b/init_high.cpp
@@ -0,0 +1,27 @@
+#include <stdint.h>
+
+extern uint32_t _copy_data_load, _copy_data_store, _copy_data_store_end;
+extern uint32_t _bss_start, _bss_end;
+
+extern int main();
+extern "C" int init_high();
+
+int init_high() {
+ // Copy data from flash to ram
+ uint32_t *src = &_copy_data_load;
+ uint32_t *dest = &_copy_data_store;
+ uint32_t *end = &_copy_data_store_end;
+
+ while (dest <= end) {
+ *dest++ = *src++;
+ }
+
+ // Clear the BSS segment
+ dest = &_bss_start;
+ end = &_bss_end;
+ while (dest <= end) {
+ *dest++ = 0;
+ }
+
+ return main();
+}