generated from Template/H563ZI-HAL-CMake-Template
140 lines
2.9 KiB
C
140 lines
2.9 KiB
C
#include "HCBle.h"
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/**
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提示: 虽然 BLE 以及 GPS都是DMA+ UART接收，但是它们都有所不同
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BLE --- DMA + IDLE 中断 循环 DMA + 空闲中断触发处理 UART IDLE
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GPS --- DMA +固定长度 + TC中断 设置固定长度 DMA DMA传输完成中断
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**/
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// 外部变量引入区
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extern UART_HandleTypeDef huart1;
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extern DMA_HandleTypeDef handle_GPDMA1_Channel5;
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extern DMA_HandleTypeDef handle_GPDMA1_Channel4;
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/*
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变量定义区
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*/
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char HC_Send_Data[128];
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uint8_t HC_Recevie[RX_DataSize]; // 蓝牙接收缓存
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volatile uint16_t rx_index = 0; //作为接收字符串指针
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volatile uint8_t data_received = 0; // 0 --- 未接收 1 --- 接收
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uint8_t rx_data; //接收字符
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// dma
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uint8_t uart_dma_rx_buf[UART_DMA_RX_BUF_SIZE];
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RingBuffer ble_rx_ring = {0}; //初始化
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MotorCommand cmd;
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//初始化DMA接收函数
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void HCBle_InitDMAReception(void)
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{
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HAL_UART_Receive_DMA(&huart1,uart_dma_rx_buf,UART_DMA_RX_BUF_SIZE);
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__HAL_UART_ENABLE_IT(&huart1,UART_IT_IDLE); //使用空闲中断
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}
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// 发送数据
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void HCBle_SendData(char *p,...)
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{
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va_list ap;
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va_start(ap,p);
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vsprintf(HC_Send_Data,p,ap);
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va_end(ap);
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// 编译控制
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#ifdef DEBUG_EN
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// 信息输出接口
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HAL_UART_Transmit(&huart1,(uint8_t *)HC_Send_Data,strlen(HC_Send_Data),100);
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// HAL_UART_Transmi(&huart1,(uint8_t *)formatBuf,strlen(formatBuf),1);
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// 对于没有使用中断的串口发送，是需要加入一个阻塞的
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#else
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HAL_UART_Transmit_DMA(&huart1, (uint8_t *)HC_Send_Data, strlen(HC_Send_Data));
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#endif
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}
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// 对于发送数据 可以加入一个DMA
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// 蓝牙数据接收
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void HAL_UART_RxCpltCallback(UART_HandleTypeDef *huart)
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{
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if(huart->Instance == USART1)
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{
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if(rx_data == '\n')
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{
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if(rx_index > 0)
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{
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HC_Recevie[rx_index] = '\0';
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data_received = 1;
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rx_index = 0; //我认为接收完字符串后 把字符传给别的处理后 需要清除这里的字符串 memset
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}else if(rx_index < RX_DataSize - 1)
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{
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}else
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{
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rx_index = 0; //缓冲区溢出，重置
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memset(HC_Recevie,'\0',RX_DataSize);
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}
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}
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HAL_UART_Receive_IT(huart,&rx_data,1);
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}
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}
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// 接下来就是定义 Json数据处理 以及 发送数据给手机App
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// Json数据解析 后续使用到Thread x 进行解析
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void HCBle_ExtractAndParseFrame(void)
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{
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static char json_buf[128];
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static int idx = 0;
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static int in_frame = 0;
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while (ble_rx_ring.tail != ble_rx_ring.head)
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{
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char c = ble_rx_ring.buffer[ble_rx_ring.tail];
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ble_rx_ring.tail = (ble_rx_ring.tail + 1) % RING_BUFFER_SIZE;
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// 帧开始：#
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if (c == '#') {
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idx = 0;
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in_frame = 1;
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json_buf[idx++] = c;
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}
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else if (in_frame) {
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if (idx < sizeof(json_buf) - 1) {
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json_buf[idx++] = c;
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// 帧结束：\n
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if (c == '\n') {
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json_buf[idx] = '\0';
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// ? JSON处理
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if (strstr(json_buf, "leftSpeed") && strstr(json_buf, "rightSpeed")) {
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sscanf(json_buf, "#{\"leftSpeed\":%d,\"rightSpeed\":%d}", &cmd.LeftSpeed, &cmd.RightSpeed);
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//SetMotorSpeed(cmd.LeftSpeed, cmd.RightSpeed); 后续加入
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}
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in_frame = 0;
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idx = 0;
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}
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} else {
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// 超出缓冲区，强制重启
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in_frame = 0;
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idx = 0;
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}
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}
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}
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}
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