#include "wifi.h"
#include "delay.h"
#include "sg92.h"
#include "stdio.h"
#include "led.h"
#include "usart.h"
/**********************/
uint8_t Rcv_buf[RCVBUF_LEN];
uint8_t Sed_buf[SEDBUF_LEN];
char str1[100] = {0};
char str2[100] = {0};
uint8_t SG90 = 0;
uint8_t Led = 0;
/**********************/
/**********************/
static void dma1_channel7_usart2_tx(void);
static void dma1_channel6_usart2_rx(void);
/**********************/
//USART2
void wifi_init(void)
{
//灯的结构体
GPIO_InitTypeDef GPIO_InitStructure;
//串口通信（异步通信，全双工）
USART_InitTypeDef USART_InitStructure;
//嵌套向量中断控制器
NVIC_InitTypeDef NVIC_InitStructure;
//GPIO口和USART2的时钟的使能配置
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2, ENABLE);
// USART2 的 NVIC 配置
NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn;//
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;//
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;//
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;//
NVIC_Init(&NVIC_InitStructure);
// PA3 配置为输入浮空
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// PA2 配置为复用功能输出推挽
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
GPIO_Init(GPIOA, &GPIO_InitStructure);
// USART2 配置
USART_InitStructure.USART_BaudRate = 115200;
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_InitStructure.USART_Parity = USART_Parity_No;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_Init(USART2, &USART_InitStructure);
USART_ClearFlag(USART2,USART_FLAG_TC);
USART_ClearFlag(USART2,USART_FLAG_RXNE);
USART_ITConfig(USART2, USART_IT_IDLE, ENABLE); // 总线空闲中断
dma1_channel7_usart2_tx();
dma1_channel6_usart2_rx();
USART_Cmd(USART2, ENABLE);
}
//直接寄存器
static void dma1_channel7_usart2_tx(void)
{
DMA_InitTypeDef DMA_InitStructure;
// NVIC_InitTypeDef NVIC_InitStructure;
// 使能时钟
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralDST;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)Sed_buf; // 内存地址暂不设置，等到传输时才设置
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)(&USART2->DR);
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
DMA_Init(DMA1_Channel7, &DMA_InitStructure);
USART_DMACmd(USART2, USART_DMAReq_Tx, ENABLE);
DMA_Cmd(DMA1_Channel7, DISABLE);
}
static void dma1_channel6_usart2_rx(void)
{
DMA_InitTypeDef DMA_InitStructure;
// NVIC_InitTypeDef NVIC_InitStructure;
// 使能时钟
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_DMA1, ENABLE);
// // DMA1 通道4 中断配置
DMA_InitStructure.DMA_BufferSize = RCVBUF_LEN; // 传输大小暂不设置，等到要传输时才设置
DMA_InitStructure.DMA_DIR = DMA_DIR_PeripheralSRC;
DMA_InitStructure.DMA_M2M = DMA_M2M_Disable;
DMA_InitStructure.DMA_MemoryBaseAddr = (uint32_t)Rcv_buf; // 内存地址暂不设置，等到传输时才设置
DMA_InitStructure.DMA_MemoryDataSize = DMA_MemoryDataSize_Byte;
DMA_InitStructure.DMA_MemoryInc = DMA_MemoryInc_Enable;
DMA_InitStructure.DMA_Mode = DMA_Mode_Normal;
DMA_InitStructure.DMA_PeripheralBaseAddr = (uint32_t)(&USART2->DR);
DMA_InitStructure.DMA_PeripheralDataSize = DMA_PeripheralDataSize_Byte;
DMA_InitStructure.DMA_PeripheralInc = DMA_PeripheralInc_Disable;
DMA_InitStructure.DMA_Priority = DMA_Priority_VeryHigh;
DMA_Init(DMA1_Channel6, &DMA_InitStructure);
//DMA_ITConfig(DMA1_Channel4, DMA_IT_TC, ENABLE);
USART_DMACmd(USART2, USART_DMAReq_Rx, ENABLE);
DMA_Cmd(DMA1_Channel6, ENABLE);
}
// DMA1 通道7 传输到 USART2 发送端
static void dma1_ch7_to_usart2tx(uint32_t size)
{
DMA_Cmd(DMA1_Channel7, DISABLE); // 关闭 DMA 才能修改 CNDTR 寄存器
DMA_SetCurrDataCounter(DMA1_Channel7,size);
DMA_Cmd(DMA1_Channel7, ENABLE);
}
// DMA1 通道7 传输到 USART2 发送端
static void dma1_ch6_to_usart2rx(uint32_t size)
{
DMA_Cmd(DMA1_Channel6, DISABLE); // 关闭 DMA 才能修改 CNDTR 寄存器
DMA_SetCurrDataCounter(DMA1_Channel6,size);
DMA_Cmd(DMA1_Channel6, ENABLE);
}
void Send_Data(uint8_t *Pcmd){
//获取长度
uint8_t len = strlen((const char*)Pcmd);
//把数据复制到全局数组
strcpy((char*)Sed_buf,(const char*)Pcmd);
dma1_ch7_to_usart2tx(len);
}
void Send_Cmd_Wait_Cmd(uint8_t *SendPcmd,uint8_t *WaitPcmd){
memset(Rcv_buf,0,RCVBUF_LEN);
Send_Data(SendPcmd);
while(1){
if(dmaflag){
if(strstr((const char*)Rcv_buf,(const char*)WaitPcmd) != NULL)
break;
}
}
dmaflag = !dmaflag;
}
__IO uint8_t dmaflag = 0;
//增加操作
// USART2 中断处理程序
void USART2_IRQHandler(void)
{
if(USART_GetITStatus(USART2, USART_IT_IDLE) == SET) { // 收完了
dma1_ch6_to_usart2rx(RCVBUF_LEN);
dmaflag = 1;
if(strstr(Rcv_buf,"LEDON") != NULL){
LED1 =0;
printf("LEDON\r\n");
}
if(strstr(Rcv_buf,"LEDOFF") != NULL){
LED1 =1;
printf("LEDOFF\r\n");
}
if(strstr(Rcv_buf,"SG92ON") != NULL){
//SG90_On();
}
if(strstr(Rcv_buf,"SG92OFF") != NULL){
//SG90_Off();
}
if(strstr(Rcv_buf,"FANON") != NULL){
//fan_on();
}
if(strstr(Rcv_buf,"FANOFF") != NULL){
//fan_off();
}
USART_ReceiveData(USART2); // 总线空闲时也要读取数据寄存器
}
}
void esp_init(void)
{
//
Send_Data("+++\r\n");
// 测试 AT 启动
Send_Cmd_Wait_Cmd("AT\r\n","OK");
//
Send_Cmd_Wait_Cmd("ATE0\r\n","OK");
//重启模块
Send_Cmd_Wait_Cmd("AT+RST\r\n","ready");
//设置Wi-Fi模式并保存到flash
Send_Cmd_Wait_Cmd("AT+CWMODE_DEF=1\r\n","OK");
//连接ap
Send_Cmd_Wait_Cmd("AT+CWJAP=\"USER_509\",\"3643731ZSC\"\r\n","OK");
printf("WIFI连接成功\r\n");
//建立TCP连接
Send_Cmd_Wait_Cmd("AT+CIPSTART=\"TCP\",\"192.168.43.94\",8888\r\n","OK");
printf("TCP服务器连接成功\r\n");
printf("配置完成");
delay_ms(2000);
}