222 lines
6.9 KiB
C
222 lines
6.9 KiB
C
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include "cm_iomux.h"
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#include "cm_gpio.h"
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#include "stdio.h"
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#include "stdlib.h"
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#include "stdarg.h"
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#include "cm_os.h"
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#include "cm_mem.h"
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#include "cm_sys.h"
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#include "cm_uart.h"
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#include "app_uart.h"
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#include "app_common.h"
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#define APP_UART_TASK_PRIORITY osPriorityNormal
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#define APP_URAT 0
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//uart0
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#if (APP_URAT == 0)
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#define APP_UARTTX_IOMUX CM_IOMUX_PIN_18, CM_IOMUX_FUNC_FUNCTION1
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#define APP_UARTRX_IOMUX CM_IOMUX_PIN_17, CM_IOMUX_FUNC_FUNCTION1
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#endif
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//uart1
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#if (APP_URAT == 1)
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#define APP_UARTRX_IOMUX CM_IOMUX_PIN_28, CM_IOMUX_FUNC_FUNCTION1
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#define APP_UARTTX_IOMUX CM_IOMUX_PIN_29, CM_IOMUX_FUNC_FUNCTION1
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#endif
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#if (APP_URAT == 2)
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#define APP_UARTTX_IOMUX CM_IOMUX_PIN_50, CM_IOMUX_FUNC_FUNCTION3
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#define APP_UARTRX_IOMUX CM_IOMUX_PIN_51, CM_IOMUX_FUNC_FUNCTION3
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#endif
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typedef struct{
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int msg_type;
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} uart_event_msg_t;
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#define UART_BUF_LEN 1024
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static int rx_rev_len = 0;
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static char rx_rev_data[UART_BUF_LEN] = {0};
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static osThreadId_t os_UART_ThreadId = NULL; //串口数据接收、解析任务Handle
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static osThreadId_t uart_event_thread = NULL;
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static void* g_uart_sem = NULL;
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static osMessageQueueId_t uart_event_queue = NULL;
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// 用于测试串口事件，用户可参考
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static void uart_event_task(void *arg){
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uart_event_msg_t msg = {0};
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while (1) {
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if (osMessageQueueGet(uart_event_queue, &msg, NULL, osWaitForever) == osOK) {
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//cm_log_printf(0, "uart event msg type = %d\n", msg.msg_type);
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if (CM_UART_EVENT_TYPE_RX_OVERFLOW & msg.msg_type){
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app_printf("CM_UART_EVENT_TYPE_RX_OVERFLOW... ...\r\n");
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cm_uart_read(APP_URAT, (void*)&rx_rev_data[0], UART_BUF_LEN, 1000);
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cm_uart_read(APP_URAT, (void*)&rx_rev_data[0], UART_BUF_LEN, 1000);
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cm_uart_read(APP_URAT, (void*)&rx_rev_data[0], UART_BUF_LEN, 1000);
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cm_uart_read(APP_URAT, (void*)&rx_rev_data[0], UART_BUF_LEN, 1000);
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}
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}
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}
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}
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// 用于测试串口事件，用户可参考
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static int uart_event_task_create(void){
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if (uart_event_queue == NULL){
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uart_event_queue = osMessageQueueNew(10, sizeof(uart_event_msg_t), NULL);
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}
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if (uart_event_thread == NULL) {
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osThreadAttr_t attr1 = {
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.name = "uart_event",
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.priority = APP_UART_TASK_PRIORITY,
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.stack_size = 1024,
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};
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uart_event_thread = osThreadNew(uart_event_task, NULL, (const osThreadAttr_t*)&attr1);
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}
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return 0;
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}
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/* 串口接收示例，平时使用信号量挂起，当收到接收事件后，释放信号量以触发读取任务 */
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static void Uart_TaskHandle(void *param){
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int temp_len = 0;
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while (1){
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if (g_uart_sem != NULL){
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osSemaphoreAcquire(g_uart_sem, osWaitForever);//阻塞
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}
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if (rx_rev_len < UART_BUF_LEN){
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temp_len = cm_uart_read(APP_URAT, (void*)&rx_rev_data[rx_rev_len], UART_BUF_LEN - rx_rev_len, 1000);
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rx_rev_len += temp_len;
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}
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app_printf("uart rev data len = %d\n", rx_rev_len);
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/* 后续用于SDK测试，用户可酌情参考*/
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if (g_uart_sem != NULL && (strstr(rx_rev_data, "\r\n"))){
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//处理收到数据事件
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cm_uart_write(APP_URAT, rx_rev_data, rx_rev_len, 1000);
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memset((void*)rx_rev_data, 0, sizeof(rx_rev_data));
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rx_rev_len = 0;
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}
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}
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}
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// 串口事件回调函数// 回调函数中不可输出LOG、串口打印、执行复杂任务或消耗过多资源，建议以信号量或消息队列形式控制其他线程执行任务
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static void app_uart_event_callback(void *param, uint32_t type){
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uart_event_msg_t msg = {0};
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if (CM_UART_EVENT_TYPE_RX_ARRIVED & type){
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/* 收到接收事件，触发其他线程执行读取数据 */
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osSemaphoreRelease(g_uart_sem);
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}
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if (CM_UART_EVENT_TYPE_RX_OVERFLOW & type){
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/* 收到溢出事件，触发其他线程处理溢出事件 */
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msg.msg_type = type;
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if (uart_event_queue != NULL){//向队列发送数据
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osMessageQueuePut(uart_event_queue, &msg, 0, 0);
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}
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}
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}
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void app_uart_init(void){
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int32_t ret = -1;
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// 配置引脚复用
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cm_iomux_set_pin_func(APP_UARTTX_IOMUX);
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cm_iomux_set_pin_func(APP_UARTRX_IOMUX);
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cm_iomux_set_pin_cmd(CM_IOMUX_PIN_17, CM_IOMUX_PINCMD3_PULL, CM_IOMUX_PINCMD3_FUNC2_PULL_HIGH);
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// cm_iomux_set_pin_cmd(CM_IOMUX_PIN_18, CM_IOMUX_PINCMD3_PULL, CM_IOMUX_PINCMD3_FUNC2_PULL_HIGH);
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// 事件参数
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cm_uart_event_t uart_event = {
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CM_UART_EVENT_TYPE_RX_ARRIVED | CM_UART_EVENT_TYPE_RX_OVERFLOW, //注册需要上报的事件类型
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"uart0", //用户参数
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app_uart_event_callback //上报事件的回调函数
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};
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// 注册事件和回调函数
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ret = cm_uart_register_event(APP_URAT, &uart_event);
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if(ret != RET_SUCCESS){
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cm_log_printf(0, "uart register event err,ret=%d\n", ret);
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return;
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}
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// 配置参数
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cm_uart_cfg_t uart_cfg = {
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CM_UART_BYTE_SIZE_8,
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CM_UART_PARITY_NONE,
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CM_UART_STOP_BIT_ONE,
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CM_UART_FLOW_CTRL_NONE,
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CM_UART_BAUDRATE_9600,
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0 //配置为普通串口模式，若要配置为低功耗模式可改为1
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};
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// 开启串口
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ret = cm_uart_open(APP_URAT, &uart_cfg);
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if (ret != RET_SUCCESS){
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cm_log_printf(0, "uart init err,ret=%d\n", ret);
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return;
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}
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// // 配置uart唤醒功能，使能边沿检测才具备唤醒功能，仅主串口具有唤醒功能，用于唤醒的数据并不能被uart接收，请在唤醒后再进行uart数传
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// cm_iomux_set_pin_cmd(APP_UARTRX_IOMUX , CM_IOMUX_PINCMD1_LPMEDEG, CM_IOMUX_PINCMD1_FUNC1_LPM_EDGE_RISE);
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// 串口接收处理任务
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osThreadAttr_t uart_task_attr = {0};
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uart_task_attr.name = "uart_task";
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uart_task_attr.stack_size = 2048;
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uart_task_attr.priority= APP_UART_TASK_PRIORITY;
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os_UART_ThreadId= osThreadNew(Uart_TaskHandle, 0, &uart_task_attr);
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if (g_uart_sem == NULL) {
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g_uart_sem = osSemaphoreNew(1, 0, NULL);
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}
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uart_event_task_create();
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}
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/* 关闭串口 */
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void app_uart_close(void){
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cm_uart_dev_e dev = CM_UART_DEV_0;
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if (0 == cm_uart_close(dev)){
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app_printf("uart%d close is ok\n", dev);
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}else{
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app_printf("uart%d close is error\n", dev);
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}
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}
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void app_printf(char *str, ...){
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static char s[600]; //This needs to be large enough to store the string TODO Change magic number
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va_list args;
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int len;
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if ((str == NULL) || (strlen(str) == 0))
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{
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return;
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}
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va_start(args, str);
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len = vsnprintf((char*)s, 600, str, args);
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va_end(args);
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cm_uart_write(APP_URAT, s, len, 1000);
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}
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