From c854d51d514c155325b6ea2d011206696d0fcd1a Mon Sep 17 00:00:00 2001
From: zhyinch <zhyinch@gmail.com>
Date: 星期日, 24 十一月 2019 23:08:19 +0800
Subject: [PATCH] 修改串口485bug
---
源码/核心板/Src/OnChipDevices/Usart.c | 6 ++++--
1 files changed, 4 insertions(+), 2 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 016ae49..c36282b 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"
@@ -17,7 +17,6 @@
volatile uint8_t m_bEUARTTxEn = 0; //使能发送
void (*Usart1ParseDataCallback)(uint8_t);
-
void Usart1InitVariables(void)
{
m_EUART_TxFrm_FreeFrmLen = EUART_TX_FRM_SIZE-1;
@@ -143,6 +142,7 @@
while( m_EUART_DMA_RXPtr != DMACnt && MaxDataLen > 0)
{
Usart1ParseDataCallback(m_EUART_DMA_RXBuf[m_EUART_DMA_RXPtr]);
+ delay_us(10);
m_EUART_DMA_RXPtr++;
if( m_EUART_DMA_RXPtr >= EUART_RX_BUF_SIZE )
{
@@ -190,10 +190,12 @@
m_bEUARTCheckingSend = 0;
return;
}
- OUT485_ENABLE;
+
if(!m_bEUARTTxEn)
{
m_bEUARTTxEn = 1;
+ OUT485_ENABLE;
+ delay_us(10);
// temp32 = GPIOC->CRH; //C10复用推挽输出
// temp32 &= ~(0x00000000F<<8);
// temp32 |= (0x000000009<<8);
--
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