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初始版本
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yueming
253
firmware/stm32-esp/user/show/esp8266_uart2.c
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253
firmware/stm32-esp/user/show/esp8266_uart2.c
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#include "esp8266_uart2.h"
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//检测应答命令
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static uint8_t* ESP8266_CheckCmd(uint8_t *str)
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{
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char *strx = 0;
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if(UART2ReadFlag&0x8000)
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{
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UART2ReadBuf[UART2ReadFlag&0x7FFF] = 0;//添加结束符
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strx = strstr((const char*)UART2ReadBuf,(const char*)str);
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}
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return (uint8_t*)strx;
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}
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//cmd:发送的命令字符串
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//ack:期待的应答结果,如果为空,则表示不需要等待应答
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//返回值:0,发送成功 1,发送失败
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static uint8_t ESP8266_SendCmd(uint8_t *cmd,uint8_t *ack,uint16_t waittime) {
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UART2ReadFlag = 0;
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memset((void *)UART2ReadBuf, 0, sizeof(UART2ReadBuf));
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Dev_UART2SendStr("%s\r\n", cmd);//发送命令
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if(ack&&waittime) //需要等待应答
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{
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while(--waittime) //等待倒计时
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{
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Delay_ms(10);
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if(UART2ReadFlag&0x8000)
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{
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if(ESP8266_CheckCmd(ack))
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{
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UART2ReadFlag = 0;
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return 0;
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}
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else
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{
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UART2ReadFlag = 0;
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return 1;
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}
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}
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}
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if(waittime==0)
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{
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return 1;
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}
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}
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return 1;
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}
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uint8_t ESP8266_SendStr(char* fmt,...)
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{
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uint8_t tbuf[200] = {0};
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uint16_t i = 0,j = 0;
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va_list ap;
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va_start(ap, fmt);
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vsprintf((char*)tbuf, fmt, ap);
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va_end(ap);
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j = strlen((const char*)tbuf);
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for( i = 0; i < j; i++)
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{
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while(USART_GetFlagStatus(USART2, USART_FLAG_TC)==RESET){}
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USART_SendData(USART2, tbuf[i]);
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}
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while(USART_GetFlagStatus(USART2, USART_FLAG_TC)==RESET){}
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return 0;
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}
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uint8_t ESP8266_SendData(uint8_t *tbuf, uint16_t len)
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{
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uint16_t i = 0;
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for( i = 0; i < len; i++)
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{
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while(USART_GetFlagStatus(USART2, USART_FLAG_TC)==RESET){}
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USART_SendData(USART2, tbuf[i]);
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}
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while(USART_GetFlagStatus(USART2, USART_FLAG_TC)==RESET){}
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return 0;
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}
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// STA模式下获取本地IP
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void ESP8266_GetLocalIP(uint8_t* ipbuf){
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uint8_t *p,*p1;
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if(ESP8266_SendCmd( (uint8_t *)"AT+CIFSR", (uint8_t *)"OK", 50))
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{
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ipbuf[0] = 0;
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return;
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}
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p = ESP8266_CheckCmd((uint8_t *)"\"");
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p1 = (uint8_t *)strstr((const char*)(p+1),"\"");
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*p1=0;
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sprintf((char*)ipbuf,"%s",p+1);
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}
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//退出透传模式 0,退出成功; 1,退出失败
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uint8_t ESP8266_QuitTrans(void){
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while(USART_GetFlagStatus(USART2,USART_FLAG_TC)==RESET){};
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USART_SendData(USART2, '+');
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Delay_ms(15);
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while(USART_GetFlagStatus(USART2,USART_FLAG_TC)==RESET){};
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USART_SendData(USART2, '+');
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Delay_ms(15);
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while(USART_GetFlagStatus(USART2,USART_FLAG_TC)==RESET){};
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USART_SendData(USART2, '+');
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Delay_ms(500); //等待500ms
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return ESP8266_SendCmd((uint8_t *)"AT",(uint8_t *)"OK",20);//退出透传判断
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}
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//获取连接状态 0,未连接;1,连接成功.
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uint8_t ESP8266_ConstaCheck(void){
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while(ESP8266_SendCmd((uint8_t *)"AT+CIPSTATUS",(uint8_t *)"OK",50));
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return 0;
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}
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uint8_t ESP8266_APInit(char *name, char *password){
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uint8_t Sbuf[60] ={0};
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// UART2
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BSP_UART2Init(115200);
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Delay_ms(1000);
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Delay_ms(1000);
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while(ESP8266_SendCmd((uint8_t *)"AT",(uint8_t *)"OK",200))
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{//退出透传
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ESP8266_QuitTrans();
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//关闭透传模式
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ESP8266_SendCmd((uint8_t *)"AT+CIPMODE=0",(uint8_t *)"OK",200);
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Delay_ms(1000);
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}
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// 关闭回显
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while(ESP8266_SendCmd((uint8_t *)"ATE0",(uint8_t *)"OK",200));
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// 设置波特率
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while(ESP8266_SendCmd((uint8_t *)"AT+UART=115200,8,1,0,0",(uint8_t *)"OK",200));
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Delay_ms(10);
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// 设置WIFI AP模式
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while(ESP8266_SendCmd((uint8_t *)"AT+CWMODE=2",(uint8_t *)"OK",200));
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while(ESP8266_SendCmd((uint8_t *)"AT+RST",(uint8_t *)"OK",200));
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// 延时4秒等待重启成功
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Delay_ms(1000);
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Delay_ms(1000);
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Delay_ms(1000);
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Delay_ms(1000);
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memset(Sbuf, 0 , sizeof(Sbuf));
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sprintf((char*)Sbuf, "AT+CWSAP=\"%s\",\"%s\",1,4", name, password);
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while(ESP8266_SendCmd(Sbuf, (uint8_t *)"OK", 1000));
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#ifdef TCP_Mode
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#endif
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#ifdef UDP_Mode
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while(ESP8266_SendCmd((uint8_t *)"AT+CIPMUX=0",(uint8_t *)"OK",200));
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while(ESP8266_SendCmd((uint8_t *)"AT+CIPSTART=\"UDP\",\"255.255.255.255\",60156,42254,0",(uint8_t *)"OK",500));
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while(ESP8266_SendCmd((uint8_t *)"AT+CIPMODE=1",(uint8_t *)"OK",300));
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while(ESP8266_SendCmd((uint8_t *)"AT+CIPSEND",(uint8_t *)"OK",200));
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#endif
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UART2ReadFlag = 0;
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memset((void *)UART2ReadBuf, 0, sizeof(UART2ReadBuf));
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return 0;
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}
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uint8_t ESP8266_STAConnect(char *name, char *password){
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uint8_t Sbuf[60] ={0};
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memset(Sbuf, 0 , sizeof(Sbuf));
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sprintf((char*)Sbuf,"AT+CWJAP=\"%s\",\"%s\"", name, password);
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if(ESP8266_SendCmd( Sbuf, (uint8_t *)"WIFI GOT IP", 100)){
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return 1;
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}
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else {
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#ifdef TCP_Mode
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while(ESP8266_SendCmd((uint8_t *)"AT+CIPMUX=0",(uint8_t *)"OK",200));
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while(ESP8266_SendCmd((uint8_t *)"AT+CIPSTART=\"TCP\",\"192.168.0.102\",8086",(uint8_t *)"OK",200));
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while(ESP8266_SendCmd((uint8_t *)"AT+CIPMODE=1",(uint8_t *)"OK",200));
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while(ESP8266_SendCmd((uint8_t *)"AT+CIPSEND",(uint8_t *)"OK",20));
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#endif
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#ifdef UDP_Mode
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while(ESP8266_SendCmd((uint8_t *)"AT+CIPMUX=0",(uint8_t *)"OK",200));
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while(ESP8266_SendCmd((uint8_t *)"AT+CIPSTART=\"UDP\",\"192.168.1.6\",8086,8086,0",(uint8_t *)"OK",200));
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while(ESP8266_SendCmd((uint8_t *)"AT+CIPMODE=1",(uint8_t *)"OK",200));
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while(ESP8266_SendCmd((uint8_t *)"AT+CIPSEND",(uint8_t *)"OK",20));
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#endif
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UART2ReadFlag = 0;
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memset((void *)UART2ReadBuf, 0, sizeof(UART2ReadBuf));
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return 0;
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}
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}
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uint8_t ESP8266_STAInit(void){
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// 初始化串口
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BSP_UART2Init(115200);
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// 延时2秒等待串口初始化完成
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Delay_ms(1000);
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Delay_ms(1000);
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while(ESP8266_SendCmd((uint8_t *)"AT",(uint8_t *)"OK",200))
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{
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//退出透传
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ESP8266_QuitTrans();
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//关闭透传模式
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ESP8266_SendCmd((uint8_t *)"AT+CIPMODE=0",(uint8_t *)"OK",200);
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Delay_ms(800);
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}
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// 关闭回显
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while(ESP8266_SendCmd((uint8_t *)"ATE0",(uint8_t *)"OK",200));
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// 设置波特率
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while(ESP8266_SendCmd((uint8_t *)"AT+UART=115200,8,1,0,0",(uint8_t *)"OK",200));
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Delay_ms(10);
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// 设置WIFI STA模式
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while(ESP8266_SendCmd((uint8_t *)"AT+CWMODE=1",(uint8_t *)"OK",200));
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while(ESP8266_SendCmd((uint8_t *)"AT+RST",(uint8_t *)"OK",200));
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Delay_ms(1000);
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Delay_ms(1000);
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Delay_ms(1000);
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Delay_ms(1000);
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return 1;
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}
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