From 4cf8adc0dd1286f8585d0be7a2bf367bb8119cdc Mon Sep 17 00:00:00 2001
From: zhyinch <zhyinch@gmail.com>
Date: 星期二, 06 四月 2021 16:16:38 +0800
Subject: [PATCH] V2.16 测试完成WIFI串口功能。
---
源码/核心板/Src/OnChipDevices/Usart.c | 153 +++++++++++++++++++++++++++++++++++++++++++++++++--
1 files changed, 147 insertions(+), 6 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 41efcbd..6e9b0e5 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"
@@ -9,7 +9,7 @@
volatile int8_t m_EUART_TxFrm_FreeFrmLen = 0; //数据发送帧队列剩余帧数
//DMA数据接收缓存
uint8_t m_EUART_DMA_RXBuf[EUART_RX_BUF_SIZE]; //DMA数据接收缓存
-volatile int32_t m_EUART_DMA_RXPtr = 0; //当前数据地址
+volatile int32_t m_EUART_DMA_RXPtr = 0,m_EUART2_DMA_RXPtr = 0; //当前数据地址
//标志变量
volatile uint8_t m_bEUARTPushingFrms = 0; //正在往发送队列存数据
volatile uint8_t m_bEUARTCheckingSend = 0; //正在确认数据发送
@@ -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;
@@ -83,14 +82,18 @@
//初始化管脚
GPIO_InitStructure.GPIO_Pin = EU_RX_PIN;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING; //Rx上拉输入
+ GPIO_InitStructure.GPIO_Mode =GPIO_Mode_IN_FLOATING; //Rx上拉输入
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(EU_RX_GPIO, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = EU_TX_PIN;
- GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //Tx推挽复用输出
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //Tx推挽复用输出 GPIO_Mode_AF_PP
GPIO_Init(EU_TX_GPIO, &GPIO_InitStructure);
+ GPIO_InitStructure.GPIO_Pin = EU_485_PIN;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //Tx推挽复用输出 GPIO_Mode_AF_PP
+ GPIO_Init(EU_485_GPIO, &GPIO_InitStructure);
+ OUT485_DISABLE;
#ifdef UART_GPIO_REMAP_ENABLE
GPIO_PinRemapConfig(UART_GPIO_REMAP, ENABLE);
#endif
@@ -139,6 +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 )
{
@@ -175,6 +179,7 @@
{
if(m_bEUARTTxEn)
{
+ OUT485_DISABLE;
m_bEUARTTxEn = 0;
// temp32 = GPIOC->CRH; //C10悬空输入
// temp32 &= ~(0x00000000F<<8);
@@ -185,17 +190,21 @@
m_bEUARTCheckingSend = 0;
return;
}
+
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);
// GPIOC->CRH = temp32;// */
}
+
//发送一个字节数据
- EXT_UART->DR = m_EUART_TxFrames[m_EUART_TxFrm_Tail].buf[s_count];
- s_count++;
+ EXT_UART->DR = m_EUART_TxFrames[m_EUART_TxFrm_Tail].buf[s_count];
+ s_count++;
if(s_count >= m_EUART_TxFrames[m_EUART_TxFrm_Tail].len) //一帧数据发送完毕
{
s_count = 0;
@@ -313,4 +322,136 @@
while (!(USART1->SR & USART_FLAG_TXE));
return (ch);
}
+//////////////////////////////////////////////////////////////USART2
+
+void UART2_DMAConfiguration(void)
+{
+ DMA_InitTypeDef DMA_InitStructure;
+
+ RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
+
+ //UART的DMA数据接收初始化
+ DMA_DeInit(UART2_RX_DMA_CH);
+ DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)( &(EXT_UART2->DR)); //外设数据寄存器
+ DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)m_EUART_DMA_RXBuf; //数据Buf
+ DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC; //外设作源头
+ DMA_InitStructure.DMA_BufferSize = EUART_RX_BUF_SIZE; //Buf大小
+ DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; //外设地址不增加
+ DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; //内存地址增加
+ DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte; //字节
+ DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte; //字节（注意与上一个变量名称不同！！）
+ DMA_InitStructure.DMA_Mode = DMA_Mode_Circular; //循环模式
+ DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh; //优先级
+ DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; //非内存到内存
+ DMA_Init(UART2_RX_DMA_CH, &DMA_InitStructure);
+ USART_DMACmd(EXT_UART2, USART_DMAReq_Rx, ENABLE);
+ DMA_Cmd(UART2_RX_DMA_CH, ENABLE);
+
+#ifdef EXUART_USE_TXDMA
+ //UART的DMA数据发送初始化
+ DMA_DeInit(EUART_TX_DMA_CH);
+ DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)(&(EXT_UART->DR)); //外设数据寄存器
+ DMA_InitStructure.DMA_MemoryBaseAddr = 0; //数据Buf
+ DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST; //外设作目标
+ DMA_InitStructure.DMA_BufferSize = 0; //Buf大小
+ DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable; //外设地址寄存器不递增
+ DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable; //内存地址递增
+ DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte; //外设字节为单位
+ DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte; //内存字节为单位（注意与上一个变量名称不同！！）
+ DMA_InitStructure.DMA_Mode = DMA_Mode_Normal; //普通模式
+ DMA_InitStructure.DMA_Priority = DMA_Priority_High; //优先级
+ DMA_InitStructure.DMA_M2M = DMA_M2M_Disable; //非内存到内存
+ DMA_Init(EUART_TX_DMA_CH, &DMA_InitStructure);
+
+// DMA_ITConfig(EUART_TX_DMA_CH, DMA_IT_TC, ENABLE); //DMA传输完成中断
+ USART_DMACmd(EXT_UART,USART_DMAReq_Tx,ENABLE); //外设使能DMA // */
+#endif
+}
+
+void Uart2_Init(void)
+{
+ GPIO_InitTypeDef GPIO_InitStructure;
+ USART_InitTypeDef USART_InitStructure;
+ USART_ClockInitTypeDef USART_ClockInitStructure;
+
+ /* Enable GPIO clock */
+ // RCC_APB2PeriphClockCmd(EU_RCC_GPIO | RCC_APB2Periph_AFIO, ENABLE);
+ /* Enable USART clock */
+ RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
+
+ Usart1InitVariables();
+
+ //初始化管脚
+ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
+ GPIO_InitStructure.GPIO_Mode =GPIO_Mode_IN_FLOATING; //Rx上拉输入
+ GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+ GPIO_Init(EU_RX_GPIO, &GPIO_InitStructure);
+
+ GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
+ GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //Tx推挽复用输出 GPIO_Mode_AF_PP
+ GPIO_Init(EU_TX_GPIO, &GPIO_InitStructure);
+
+
+#ifdef UART_GPIO_REMAP_ENABLE
+ GPIO_PinRemapConfig(UART_GPIO_REMAP, ENABLE);
+#endif
+
+ USART_DeInit(EXT_UART2);
+ USART_InitStructure.USART_BaudRate = EXUART_BAUD_RADE;
+ USART_InitStructure.USART_WordLength = USART_WordLength_8b;
+ USART_InitStructure.USART_StopBits = USART_StopBits_1;
+ USART_InitStructure.USART_Parity = USART_Parity_No;
+ USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
+ USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
+
+ USART_ClockInitStructure.USART_Clock = USART_Clock_Disable;
+ USART_ClockInitStructure.USART_CPOL = USART_CPOL_Low;
+ USART_ClockInitStructure.USART_CPHA = USART_CPHA_2Edge;
+ USART_ClockInitStructure.USART_LastBit = USART_LastBit_Disable;
+
+ USART_ClockInit(EXT_UART2, &USART_ClockInitStructure);
+ USART_Init(EXT_UART2, &USART_InitStructure);
+// USART_ITConfig(EXT_UART, USART_IT_RXNE, ENABLE);//??????,????? ??????????
+ // Enable the USARTx
+ USART_Cmd(EXT_UART2, ENABLE);
+ //DMA配置（须放到UART初始化之后）
+ UART2_DMAConfiguration();
+
+}
+
+void UART2_CheckReceive(void)
+{
+ int32_t DMACnt = 0;
+ int32_t MaxDataLen = EUART_RX_BUF_SIZE;
+
+ //如果正在往发送队列中添加数据，退出
+ if(m_bEUARTPushingFrms)
+ return;
+ //判断是否正在Check
+ if(m_bEUARTCheckingRec)
+ return;
+ m_bEUARTCheckingRec = 1;
+ if(UART2_RX_DMA_CH->CNDTR == 0)
+ {
+ m_bEUARTCheckingRec = 0;
+ return;
+ }
+ DMACnt = EUART_RX_BUF_SIZE - (UART2_RX_DMA_CH->CNDTR);
+ while( m_EUART2_DMA_RXPtr != DMACnt && MaxDataLen > 0)
+ {
+ Usart1ParseDataCallback(m_EUART_DMA_RXBuf[m_EUART2_DMA_RXPtr]);
+ delay_us(10);
+ m_EUART2_DMA_RXPtr++;
+ if( m_EUART2_DMA_RXPtr >= EUART_RX_BUF_SIZE )
+ {
+ m_EUART2_DMA_RXPtr = 0;
+ }
+ DMACnt = EUART_RX_BUF_SIZE - (UART2_RX_DMA_CH->CNDTR);
+ MaxDataLen--;
+ }
+ m_bEUARTCheckingRec = 0;
+}
+
+
+
--
Gitblit v1.9.3