243 lines
7.8 KiB
C
243 lines
7.8 KiB
C
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/*
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* Copyright (c) 2006-2023, RT-Thread Development Team
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Change Logs:
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* Date Author Notes
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* 2023-10-08 RT-Thread first version
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*/
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#include <rtthread.h>
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#define DBG_TAG "main"
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#define DBG_LVL DBG_LOG
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#include <rtdbg.h>
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#include <rtdevice.h>
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#include "string.h"
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#include "stdlib.h"
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#define LED0_PIN 21
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#define LED1_PIN 69
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#define BEEP_PIN 80
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rt_device_t uart2;
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rt_device_t uart3; // 设备
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rt_sem_t uart3_recv_sem; // 接收数据的中间信号
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rt_sem_t uart2_recv_sem;
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static char *cmd=NULL;
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static int idle = 0;
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static rt_uint8_t buf[128];
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static rt_uint8_t buf_len = 128;
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static rt_uint8_t buf2[128];
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static rt_uint8_t buf2_len = 128;
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void toHex(char *dst, char *src)
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{
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while (*src)
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{
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char c = *src;
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char high = (c >> 4) & 0x0F, low = c & 0x0F;
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high = high < 10 ? high + '0' : high + 'A' - 10;
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low = low < 10 ? low + '0' : low + 'A' - 10;
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char buf[2] = "";
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rt_sprintf(buf, "%c%c", high, low);
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strncat(dst, buf, 2);
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src++;
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}
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}
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void unHex(char *dst, char *hexstr, int hex_len)
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{
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unsigned short *p = (unsigned short *)hexstr;
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int i = 0;
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while (i < hex_len)
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{
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unsigned char *q = (unsigned char *)p;
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unsigned char h_char = *q;
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unsigned char l_char = *(q + 1);
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h_char = h_char < 'A' ? h_char - 48 : h_char - 65 + 10;
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l_char = l_char < 'A' ? l_char - 48 : l_char - 65 + 10;
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unsigned char c = (h_char << 4) + l_char;
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char tmp_buf[2] = "";
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rt_sprintf(tmp_buf, "%c", c);
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strncat(dst, tmp_buf, 1);
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i += 2;
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p++;
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}
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}
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void uart3_init(){
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// 1. 查找uart3设备
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uart3 = rt_device_find("uart3");
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//2. 控制uart3设备：波特率、数据位、停止位、校验位等
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struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
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config.baud_rate=BAUD_RATE_9600;
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rt_device_control(uart3, RT_DEVICE_CTRL_CONFIG, &config);
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// 3. 打开uart3设备 【DMA接收方式打开的】
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rt_device_open(uart3, RT_DEVICE_OFLAG_RDWR|RT_DEVICE_FLAG_DMA_RX);
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}
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void uart2_init(){
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uart2 = rt_device_find("uart2");
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struct serial_configure config = RT_SERIAL_CONFIG_DEFAULT;
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config.baud_rate=BAUD_RATE_115200;
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rt_device_control(uart2, RT_DEVICE_CTRL_CONFIG, &config);
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rt_device_open(uart2, RT_DEVICE_OFLAG_RDWR|RT_DEVICE_FLAG_DMA_RX);
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}
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static rt_thread_t beep_th;
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void beep_on_entry(void *arg){
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rt_kprintf("beep starting\n");
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while(1){
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rt_pin_write(BEEP_PIN, PIN_LOW);
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rt_thread_delay(1);
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rt_pin_write(BEEP_PIN, PIN_HIGH);
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rt_thread_delay(1);
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}
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}
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// 接收uart3设备的数据回调函数
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// 重要说明：
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// 1） size 在中断接收时，只是 1个 字节
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// 2) size 在DMA方式接收时，表示DMA内存中存放的字节个数, 默认最大的字节数为64(RT-Thread Settings配置的)
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rt_err_t uart3_rx_callback(rt_device_t dev, rt_size_t size){
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rt_kprintf("dma rx uart3 data size: %d\n", size);
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buf_len = size;
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rt_sem_release(uart3_recv_sem);
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return RT_EOK;
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}
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rt_err_t uart2_rx_callback(rt_device_t dev, rt_size_t size){
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rt_kprintf("dma rx uart2 data size: %d\n", size);
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buf2_len = size;
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rt_sem_release(uart2_recv_sem);
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return RT_EOK;
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}
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rt_thread_t uart3_read_th1;
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rt_thread_t uart2_read_th2;
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void uart2_read_task(void *arg)
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{
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//char pub_buf[128]="";
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while(idle){
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while(rt_device_read(uart2, 0, buf2, buf2_len) != buf_len){
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rt_sem_take(uart2_recv_sem, RT_WAITING_FOREVER);
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}
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cmd = "AT+MQCON=0,4,\"client2\",3600,1,0\r\n";
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rt_device_write(uart3, 0, cmd, strlen(cmd)+1);
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rt_thread_mdelay(1000);
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cmd = "AT+MQPUB=0,\"dht\",2,0,0,3,313233\r\n";
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rt_device_write(uart3, 0, cmd, strlen(cmd)+1);
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// toHex((char *)pub_buf,(char *) buf2);
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// char length=strlen(pub_buf)/2;
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// char *ptr = &length;
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// cmd = "AT+MQPUB=0,\"temp\",2,1,0";
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// rt_device_write(uart3, 0, cmd, strlen(cmd));
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// rt_device_write(uart3, 0,ptr, 1);
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// rt_device_write(uart3, 0, pub_buf, strlen(pub_buf));
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// rt_device_write(uart3, 0,"\r\n", 1);
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}
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memset(buf2, 0, sizeof(buf2));
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}
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void uart3_read_task(void *arg){
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while(1){
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while(rt_device_read(uart3, 0, buf, buf_len) != buf_len){
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rt_sem_take(uart3_recv_sem, RT_WAITING_FOREVER);
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}
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rt_kprintf("data: %s\n", buf);
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char *m=NULL;
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if((m=rt_strstr((char *)buf, "+MQPUB:")) != NULL){
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int8_t mq_cmd_len = 0;
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char *q=strtok((char *)(m+21), ",");
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mq_cmd_len = atoi(q);
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q = strtok(NULL, ",");
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char cmd_buf[64]="";
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unHex(cmd_buf, q, mq_cmd_len*2);
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cmd_buf[strlen((cmd_buf)-1)] = 0;
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rt_kprintf("%s\n", cmd_buf);
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// 接收指令
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if(rt_strncmp("beep:", (char *)cmd_buf, 5) == 0){
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if(rt_strstr((char *)cmd_buf, "on") != RT_NULL){
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beep_th = rt_thread_create("beep_thread", beep_on_entry,
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RT_NULL, 512, 10, 5);
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if(beep_th != RT_NULL){
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rt_thread_startup(beep_th);
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}
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}else if(beep_th != RT_NULL)
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rt_thread_delete(beep_th);
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}else if(rt_strncmp("led0:", (char *)cmd_buf, 4) == 0){
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if(rt_strstr((char *)cmd_buf, "on") != RT_NULL)
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rt_pin_write(LED1_PIN, PIN_LOW);
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else
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rt_pin_write(LED1_PIN, PIN_HIGH);
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}
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else if(rt_strncmp("get_data",(char*)cmd_buf,8)==0){
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idle=1;
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//rt_device_write(uart2, 0,cmd_buf, strlen(cmd_buf));
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if(rt_device_set_rx_indicate(uart2,uart2_rx_callback)!=RT_EOK){
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rt_kprintf("rt_device_set_rx_indicate fail!");
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}
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}
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}
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}
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//rt_device_write(uart3, 0, "OK\r", sizeof("OK\r"));
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// 解析buf中的消息
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memset(buf, 0, sizeof(buf));
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}
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int main(void)
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{
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// 创建信号量
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uart3_recv_sem = rt_sem_create("sem1", 0, RT_IPC_FLAG_PRIO);
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uart2_recv_sem = rt_sem_create("sem2", 0, RT_IPC_FLAG_PRIO);
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rt_pin_mode(LED0_PIN, PIN_MODE_OUTPUT); // 使能led0的GPIO
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rt_pin_mode(LED1_PIN, PIN_MODE_OUTPUT); // 使能led1的GPIO
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rt_pin_mode(BEEP_PIN, PIN_MODE_OUTPUT); // 使能Beep的GPIO
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rt_pin_write(LED0_PIN, PIN_HIGH);
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rt_pin_write(LED1_PIN, PIN_HIGH);
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uart3_init();
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// 4. 发送数据
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cmd = "AT+MQNEW=47.109.34.218,1883,60000,128\r\n";
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rt_device_write(uart3, 0, cmd, strlen(cmd)+1);
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rt_thread_mdelay(1000);
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cmd = "AT+MQCON=0,4,\"client1\",3600,1,0\r\n";
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rt_device_write(uart3, 0, cmd, strlen(cmd)+1);
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rt_thread_mdelay(1000);
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cmd = "AT+MQSUB=0,\"stm32\",2\r\n";
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rt_device_write(uart3, 0, cmd, strlen(cmd)+1);
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// 5. 设置设备的接收回调
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if(rt_device_set_rx_indicate(uart3, uart3_rx_callback) != RT_EOK){
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rt_kprintf("rt_device_set_rx_indicate fail!");
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}
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uart3_read_th1 = rt_thread_create("th1", uart3_read_task, RT_NULL, 512, 10,
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5);
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uart2_read_th2=rt_thread_create("th2",uart2_read_task, RT_NULL, 512, 10, 5);
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if(uart3_read_th1 != RT_NULL){
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rt_kprintf("th1 create ok!\n");
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rt_thread_startup(uart3_read_th1);
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}
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if(uart2_read_th2 != RT_NULL){
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rt_kprintf("th2 create ok!\n");
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rt_thread_startup(uart2_read_th2);
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}
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while(1);
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return RT_EOK;
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}
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