shallow zip-file copy from codec2 e9d726bf20

1 files changed, 30 insertions, 0 deletions

diff --git a/stm32/src/usart_ut.c b/stm32/src/usart_ut.c
new file mode 100644
index 0000000..b8b229f
--- /dev/null
+++ b/stm32/src/usart_ut.c
@@ -0,0 +1,30 @@
+/*
+  usart_ut.c
+  David Rowe May 2019
+
+  Unit test for stm32 USART support.
+
+  tio is useful to receive the serial strings:
+
+    $ tio -m INLCRNL /dev/ttyUSB0 
+*/
+
+#include <stm32f4xx.h>
+#include "stm32f4_usart.h"
+
+void Delay(uint32_t nCount)
+{
+  while(nCount--)
+  {
+  }
+}
+
+int main(void){
+
+ usart_init();
+
+ while(1){
+   usart_puts("Hello, World\n");
+   Delay(0x3FFFFF);
+ }
+}