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/**
******************************************************************************
* @file main.c
******************************************************************************
* @attention
******************************************************************************
*/
#include <string.h>
#include <math.h>
#include "stm32f10x.h"
#include "bsp_usart1.h"
#include "bsp_SysTick.h"
#include "bsp_esp8266.h"
#include "bsp_cpu_flash.h"
#include "bsp_led.h"
//發送數據長度
#define TX_SIZE 36
//RSSI存儲地址
#define RSSI_SAVE_ADDR 0X0800F000
//統計次數存儲地址
#define FLASH_SAVE_ADDR 0X0800E000
// 0：客戶端模式 1：服務端模式
static uint8_t s_ucTxRxMode = 0;
#define ESP8266_ApSsid "RMD_TEST" //要連接的熱點的名稱
#define ESP8266_ApPwd "rmd_test" //要連接的熱點的密鑰
#define ESP8266_enunPsdMode 2
#define ESP8266_TcpServer_IP "192.168.4.1" //要連接的服務器的 IP
#define ESP8266_TcpServer_Port "5000" //要連接的服務器的端口
#define N 40 //N = 10 * n ,其中n為環境衰減因子，3.25-4.5
#define A 51 //接收機和發射機間隔1m時的信號強度
extern volatile uint8_t ucTcpClosedFlag;
extern uint8_t Get_AP_RSSI(char *APList, uint8_t uclenth);
static char cStr[36] = "abcdefghijklmnopqrstuvwxyz1234567890";
//計算距離
float rssiTodis(int RSSI) {
float iu, distance;
iu = (float)(RSSI - A) / (float)N;
distance = pow(10, iu);
return distance;
}
int main(){
USARTx_Config ();
SysTick_Init ();
printf("%f",rssiTodis(75));
}
/*
int main ( void ){
char RSSI[2];
u16 m = 0,n = 0;
char Mem_Buf[50];
uint8_t ucStatus;
u32 Err_Num = 0,Success_Num = 0;
USARTx_Config ();
SysTick_Init ();
LED_GPIO_Config();
ESP8266_Init ();
Delay_ms(1000);
ESP8266_Cmd ( "AT+RESTORE", "OK", NULL, 500 );
Delay_ms(2000);
ESP8266_AT_Test ();
LED1_ON();
Delay_ms(1000);
LED1_OFF();
if(s_ucTxRxMode == 0){
//設置為sta客戶端
ESP8266_Net_Mode_Choose(STA);
//加入AP
while ( ! ESP8266_JoinAP (ESP8266_ApSsid,ESP8266_ApPwd ) );
Delay_ms(500);
//獲取當前AP的RSSI值
if(Get_AP_RSSI(RSSI,2)){
//printf("%s",RSSI);
sprintf(Mem_Buf,"!rssi:%s!",RSSI);
bsp_WriteCpuFlash(RSSI_SAVE_ADDR,(uint8_t*)Mem_Buf,sizeof(Mem_Buf));
}else{
//printf("failed\r\n");
sprintf(Mem_Buf,"!connect error!");
bsp_WriteCpuFlash(RSSI_SAVE_ADDR,(uint8_t*)Mem_Buf,sizeof(Mem_Buf));
}
Delay_ms(500);
//建立tcp連接
ESP8266_Enable_MultipleId ( DISABLE );
while ( ! ESP8266_Link_Server ( enumTCP,ESP8266_TcpServer_IP,ESP8266_TcpServer_Port, Single_ID_0 ) );
while ( ! ESP8266_UnvarnishSend ());
for(;;){
if(ESP8266_SendString ( ENABLE, cStr, 0, Single_ID_0 )){
n += 1;
printf("%s %d\r\n",cStr,n);
LED1_TOGGLE();
}else{
Err_Num +=1;
}
///以周期計數減小flash寫入次數
if(n == 10){
Success_Num += 1;
sprintf(Mem_Buf,"!success:%d,error:%d!",Success_Num,Err_Num);
//printf("%s\r\n",Mem_Buf);
bsp_WriteCpuFlash(FLASH_SAVE_ADDR,(uint8_t*)Mem_Buf,sizeof(Mem_Buf));
n = 0;
}
Delay_ms(1000);
//檢測是否失去連接
if(ucTcpClosedFlag ){
ESP8266_ExitUnvarnishSend ();
do ucStatus = ESP8266_Get_LinkStatus ();
while (!ucStatus);
if(ucStatus == 4){
//printf ( "\r\n正在重連熱點和服務器 ......\r\n" );
while ( ! ESP8266_JoinAP (ESP8266_ApSsid, ESP8266_ApPwd ) );
while ( ! ESP8266_Link_Server ( enumTCP, ESP8266_TcpServer_IP, ESP8266_TcpServer_Port, Single_ID_0 ) );
//printf ( "\r\n重連熱點和服務器成功\r\n" );
}
while ( ! ESP8266_UnvarnishSend () );
}
}
}else if(s_ucTxRxMode == 1){
ESP8266_Net_Mode_Choose ( AP );
//printf ( "\r\n正在配置 ESP8266 ......\r\n" );
while ( ! ESP8266_BuildAP ( ESP8266_ApSsid, ESP8266_ApPwd ,ESP8266_enunPsdMode));
ESP8266_Enable_MultipleId ( ENABLE );
while (!ESP8266_StartOrShutServer ( ENABLE, ESP8266_TcpServer_Port, "0"));
for(;;){
//檢查接收到的內容是否存在丟包
if(strcmp(ESP8266_ReceiveString(DISABLE),cStr)){
m += 1;
// printf("%s %d",ESP8266_ReceiveString(DISABLE),m);
LED1_TOGGLE();
}else{
Err_Num += 1;
}
//周期計數并寫入flash
if(m == 120){
Success_Num += 1;
sprintf(Mem_Buf,"!success:%d,error:%d!",Success_Num,Err_Num);
// printf("%s\r\n",Mem_Buf);
bsp_WriteCpuFlash(FLASH_SAVE_ADDR,(uint8_t*)Mem_Buf,sizeof(Mem_Buf));
m = 0;
}
}
}
}
*/
/*********************************************END OF FILE**********************/

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