gprs_cmd.c

bf533平台图像采集程序

#include <cdefBF533.h>
#include <ccblkfn.h>
#include <string.h>
#include "core_timer.h"
//#include "sms.h"
#include "dsp_uart.h"
#include "dsp_sys.h"



char null[] = "";




#define ATI 0
#define AT 1

int comm_cmd(char* cmd_buf, int type)
{
	int wait, retry = 3;
	char buf[100], *p;
	int time, wait_time = 20;
	int ret;


	strcpy(buf, "at");
	
	if(type == ATI)
		strcat(buf, "+i");
	else if(cmd_buf[0]) 
		strcat(buf, "+");

	strcat(buf, cmd_buf);
	strcat(buf, "\r");

	while(retry--)
	{
		memset(uart_recv_buffer, 0, RECEIVE_NUM);
		uart_recved_cnt = 0;
		//send the buffer through uart	
		uart_send((unsigned char*)buf, strlen(buf));	
		time = ctime;
		
		while(ctime - time < wait_time)
		{
			wd();
			if(p = strstr(uart_recv_buffer, "ERROR"))
			{
				if(strstr(p, "\r"))
					break;
				else
					continue;
			}
			if(p = strstr(uart_recv_buffer, "OK"))
			{
				if(strstr(p, "\r"))
					return 0;
				else
					continue;
			}				
		}
	}
	
	return -1;//error
}