sam3x: Add convenince functions for setting clocks and usart baudrate.

2013-05-03 14:08:18 -07:00
parent 8265953b35
commit e2eadfddb8
4 changed files with 30 additions and 0 deletions
--- a/lib/sam3x/usart.c
+++ b/lib/sam3x/usart.c
@@ -18,6 +18,12 @@
 */

 #include <libopencm3/sam3x/usart.h>
+#include <libopencm3/sam3x/pmc.h>
+
+void usart_set_baudrate(u32 usart, u32 baud)
+{
+	USART_BRGR(usart) = pmc_mck_frequency / (16 * baud);
+}

 void usart_set_databits(u32 usart, int bits)
 {