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-rw-r--r--src/lib/usart.c8
1 files changed, 7 insertions, 1 deletions
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 */