From d89e79dc80bfca12189f77498ef0dcd652731d9d Mon Sep 17 00:00:00 2001
From: zhyinch <zhyinch@gmail.com>
Date: 星期一, 04 十一月 2019 19:46:03 +0800
Subject: [PATCH] 修改晶振频率到16M
---
源码/核心板/Src/OnChipDevices/Usart.c | 28 +++++++++++++++++++++++++++-
1 files changed, 27 insertions(+), 1 deletions(-)
diff --git "a/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/OnChipDevices/Usart.c" "b/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/OnChipDevices/Usart.c"
index 6ed2bf7..41efcbd 100644
--- "a/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/OnChipDevices/Usart.c"
+++ "b/\346\272\220\347\240\201/\346\240\270\345\277\203\346\235\277/Src/OnChipDevices/Usart.c"
@@ -1,5 +1,6 @@
#include "Usart.h"
#include <string.h>
+#include <stdio.h>
//数据发送队列变量
EUART_Frame m_EUART_TxFrames[EUART_TX_FRM_SIZE]; //数据发送帧队列
@@ -109,7 +110,7 @@
USART_ClockInit(EXT_UART, &USART_ClockInitStructure);
USART_Init(EXT_UART, &USART_InitStructure);
-
+// USART_ITConfig(EXT_UART, USART_IT_RXNE, ENABLE);//??????,????? ??????????
// Enable the USARTx
USART_Cmd(EXT_UART, ENABLE);
//DMA配置（须放到UART初始化之后）
@@ -287,4 +288,29 @@
m_EUART_TxFrm_Head = EUART_TX_FRM_SIZE-1;
m_EUART_TxFrm_FreeFrmLen++;
}
+void USART_putc(char c)
+{
+ //while(!(USART2->SR & 0x00000040));
+ //USART_SendData(USART2,c);
+ /* e.g. write a character to the USART */
+ USART_SendData(USART1, c);
+
+ /* Loop until the end of transmission */
+ while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET) ;
+}
+void USART_puts(uint8_t *s,uint8_t len)
+{
+ int i;
+ for(i=0; i<len; i++)
+ {
+ USART_putc(s[i]);
+ }
+}
+int fputc(int ch, FILE *f)
+{
+
+ USART_SendData(USART1, (unsigned char) ch);// USART1 ???? USART2 ?
+ while (!(USART1->SR & USART_FLAG_TXE));
+ return (ch);
+}
--
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