1 files changed, 19 insertions, 0 deletions
diff --git a/02-usart/src/mem.c b/02-usart/src/mem.c
index 9fef8bc..65d8b60 100644
--- a/02-usart/src/mem.c
+++ b/02-usart/src/mem.c
@@ -1,6 +1,25 @@
+#include "arch.h"
 #include "mem.h"
 #include "common.h"
 
+#ifdef ARCH_STM32L4
+// Provide a definition for memset()
+
+void* memset(void* dest, int c, size_t n)
+{
+  uint8_t c8 = (uint8_t) c;
+  uint8_t* dest8 = (uint8_t*) dest;
+  uint8_t* to = dest8 + n;
+
+  while(dest8 < to) {
+    *(dest8 ++) = c8;
+  }
+
+  return dest;
+}
+
+#endif
+
 // void memcpy_(void* dest, const void* src, size_t len)
 // {
 //   uint8_t* dest_ = (uint8_t*) dest;