From f1598e62ac2cdd4a6077aed6ca200743a4de59e5 Mon Sep 17 00:00:00 2001
From: iperry <iperry@749a229e-a60e-11de-b98f-4500b42dc123>
Date: Sun, 10 Jan 2010 13:22:52 +0000
Subject: enabled serial3

git-svn-id: https://leaflabs.googlecode.com/svn/trunk/library@109 749a229e-a60e-11de-b98f-4500b42dc123
---
 src/lib/usart.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

(limited to 'src/lib')

diff --git a/src/lib/usart.c b/src/lib/usart.c
index a06690e..76685fd 100644
--- a/src/lib/usart.c
+++ b/src/lib/usart.c
@@ -83,7 +83,12 @@ void USART2_IRQHandler(void) {
     ring_buf2.buf[ring_buf2.tail++] = (uint8_t)(((usart_port*)(USART2_BASE))->DR);
     ring_buf2.tail %= USART_RECV_BUF_SIZE;
 }
-
+/* Don't overrun your buffer, seriously  */
+void USART3_IRQHandler(void) {
+    /* Read the data  */
+    ring_buf3.buf[ring_buf2.tail++] = (uint8_t)(((usart_port*)(USART3_BASE))->DR);
+    ring_buf3.tail %= USART_RECV_BUF_SIZE;
+}
 
 /**
  *  @brief Enable a USART in single buffer transmission mode, multibuffer
@@ -124,6 +129,7 @@ void usart_init(uint8 usart_num, uint32 baud) {
         port = (usart_port*)USART3_BASE;
         ring_buf = &ring_buf3;
         clk_speed = USART3_CLK;
+        RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
         break;
     default:
         /* should never get here  */
-- 
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