Files
fastbee/firmware/stm32-esp/user/show/esp8266_uart2.c
2021-09-01 18:05:49 +08:00

254 lines
6.9 KiB
C

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