中移M5311-NBIOT-OPENCPU开发-HTTP串口收发器

实现功能：单片机串口发送HTTP-GET请求给M5311，M5311发送HTTP请求，接受返回数据，M5311串口发送回单片机

opencpu_uart_demo.c

#include "m5311_opencpu.h"#define OPENCPU_MAIN_UART HAL_UART_1unsigned char uart_cmd = 0;char buffer[300];char *pbuf;//uart中断回调函数
static void user_uart_callback(hal_uart_callback_event_t status, void *user_data){pbuf = buffer;int temp1;if(status == HAL_UART_EVENT_READY_TO_READ){memset(buffer,0,300);temp1 = opencpu_uart_receive(OPENCPU_MAIN_UART, pbuf, 300);uart_cmd = 'f';}
}/*打印函数
*/
void opencpu_printf (const char *str, ...){static unsigned char s[600]; //This needs to be large enough to store the string TODO Change magic numberint i,j;unsigned char *p;va_list args;int str_len;if ((str == NULL) || (strlen(str) == 0)){return;}va_start (args, str);str_len = (unsigned int)vsprintf ((char*)s, str, args);va_end (args);p =s;while(str_len > 0){j = opencpu_uart_send(OPENCPU_MAIN_UART, p, str_len);p=p+j;str_len = str_len - j;}
}
void custom_uart_init(void)
{opencpu_uart_open(OPENCPU_MAIN_UART,HAL_UART_BAUDRATE_115200,user_uart_callback);
}

m5311_opencpu.c

#include "m5311_opencpu.h"extern unsigned int OC_DEBUG_CHANNEL;void send_http_data(){char* url;url = "";char *name = (char *) malloc(strlen(url) + strlen(pbuf));sprintf(name, "%s%s", url, pbuf);httpclient_t client = {0};httpclient_data_t client_data = {0};char *buf = NULL;buf = pvPortMalloc(600);if (buf == NULL) {opencpu_printf("Malloc failed.\r\n");return;}memset(buf, 0, sizeof(buf));client_data.response_buf = buf;  client.timeout_in_sec = 20;client_data.response_buf_len = 600;oc_httpclient_get(&client, name, &client_data);opencpu_printf("%s\r\n",client_data.response_buf);}void test_all_in_one(){custom_uart_init();opencpu_lock_light_sleep();         // 禁止进入休眠//获取网络注册状态，并阻塞等待网络注册成功while(opencpu_cgact()!=1){vTaskDelay(10);}opencpu_printf("networkSuccess\n");uart_cmd = 0;while(1){if(uart_cmd == 'f'){uart_cmd = 0;//opencpu_printf("data:%s \r\n",pbuf);send_http_data();}vTaskDelay(10);}
}//opencpu主任务函数
void opencpu_task_main()
{test_all_in_one();vTaskDelete(NULL);
}/*新建opencpu任务，这个函数用户不可更改
*/
void test_opencpu_start()
{xTaskCreate(opencpu_task_main,"opencpu",1024,NULL,TASK_PRIORITY_NORMAL,NULL);
}

m5311_opencpu.h

// 增加一行
extern char buffer[300];

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中移M5311-NBIOT-OPENCPU开发-HTTP串口收发器

中移M5311-NBIOT-OPENCPU开发-HTTP串口收发器

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