標(biāo)題:
單片機(jī)433M無線收發(fā)數(shù)據(jù)程序
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作者:
ReyAllen
時(shí)間:
2023-10-24 22:22
標(biāo)題:
單片機(jī)433M無線收發(fā)數(shù)據(jù)程序
# 433 發(fā)送和接收模塊
## 1. 433發(fā)送
* 433發(fā)送過程:
(1)電平時(shí)間設(shè)置 **Witty433_Init()**
(2)發(fā)送內(nèi)容和次數(shù)設(shè)置 **SendInput_433()**
(3)發(fā)送 **StartSend_433()**
* 433自定義內(nèi)容:
芯片類型、管腳操作、延時(shí)函數(shù)**delay_us_433**、**delay_ms_433**及芯片ID隨芯片/操作系統(tǒng)不同由用戶定義。
* 433的各個(gè)電平時(shí)間,433的地址碼,433的控制碼,433的發(fā)送次數(shù)由用戶自定義。
## 2. 433接收
* 433接收過程:
(1)電平時(shí)間設(shè)置,定時(shí)器初始化為PWM輸入模式(注意CLK大小)
(2)定時(shí)器pwm輸入捕獲低電平時(shí)長,接收傳輸?shù)?33數(shù)據(jù)
(3)在433信號(hào)處理線程 **deal433_entry()** 中對(duì)接收的數(shù)據(jù)進(jìn)行處理
* 433自定義內(nèi)容:
定時(shí)器PWM輸入模式的初始化,各個(gè)電平時(shí)間初始化,接收校驗(yàn)次數(shù),數(shù)據(jù)處理。
#include <rtthread.h>
#include <rtdevice.h>
#include <board.h>
#include <433_receive.h>
/**
* 遙控器使用說明:使用433遙控器前要進(jìn)行配對(duì),將遙控器的地址碼獲取到存在flash當(dāng)中,每次控制時(shí)進(jìn)行校驗(yàn)。
* 配對(duì)時(shí),設(shè)備上長按配對(duì)按鍵,配對(duì)遙控器的LED燈開始閃爍,此時(shí)連續(xù)按遙控器上的配對(duì)按鍵,直到設(shè)備上的配對(duì)燈滅
* 則表示配對(duì)完成
*/
/**
* 程序名稱:接收并處理433信號(hào)
* 433接收過程:利用定時(shí)器的PWM捕獲,捕獲PWM信號(hào),捕獲完成后在deal433_entry(void *parameter)線程中進(jìn)行處理
* 433接收自定義內(nèi)容:高低電平時(shí)長,地址碼長度,控制碼長度,控制指令處理相關(guān)內(nèi)容
* 其它:華泰自己的433信號(hào)沒有結(jié)束碼
*/
TIM_HandleTypeDef htim2;
int add_low_level(unsigned int low_level, unsigned int * re_Data);
static unsigned int RxData = 0xFF; //433接收數(shù)據(jù)
static int RxOk = 0; //433接收標(biāo)志位
/* 433電平時(shí)長定義(自定義部分)*/
#define start_high 4 //起始碼高電平時(shí)長,單位CLK,CLK大小通過定時(shí)器分頻系數(shù)來改,默認(rèn)100us
#define start_low 124 //起始碼低電平時(shí)長
#define one_high 4 //數(shù)字1的高電平時(shí)長
#define one_low 4 //數(shù)字1的低電平時(shí)長
#define zero_high 4 //數(shù)字0的高電平時(shí)長
#define zero_low 12 //數(shù)字0的低電平時(shí)長
//#define stop_high 10 //結(jié)束碼的高電平時(shí)長
//#define stop_low 0 //結(jié)束碼的低電平時(shí)長
#define time_range 2 //電平時(shí)長有效范圍
/* 數(shù)據(jù)長度定義(自定義部分)*/
/* || 起始碼 || 數(shù)據(jù)碼(地址碼和控制代碼)(自定義部分)|| */
#define data_full_len 32 //數(shù)據(jù)碼總長(位)地址碼和控制代碼加起來的長度
#define addr_len 24 //地址碼長度(位)
#define control_len 8 //控制代碼(位)
/* 已配對(duì)的433遙控器地址(自定義部分) */
unsigned int remote_addr=0x000001;
/**
* 捕獲回調(diào)函數(shù)
*/
void HAL_TIM_IC_CaptureCallback(TIM_HandleTypeDef *htim)
{
static uint32_t m_pulse;
if (htim->Channel == HAL_TIM_ACTIVE_CHANNEL_2)
{
m_pulse = HAL_TIM_ReadCapturedValue(&htim2, TIM_CHANNEL_2); //得到低電平的時(shí)間
add_low_level(m_pulse, &RxData); //獲取數(shù)據(jù)
}
}
/**
* 433輸入信號(hào)處理
* @parm1 出入?yún)?shù),低電平時(shí)間
* @parm2 傳出參數(shù),接收成功就是接收成功的數(shù)據(jù)
* @return (0---沒有一個(gè)完整的數(shù)據(jù))(1---有一個(gè)完整的數(shù)據(jù))
*/
int add_low_level(unsigned int low_level, unsigned int * re_Data)
{
static int Start = 0;
static unsigned int Num;
static unsigned int Data = 0; //最新數(shù)據(jù)
static unsigned int Data1 = 0; //上次數(shù)據(jù)
static unsigned int Data2 = 0; //上上次數(shù)據(jù)
if(low_level>start_low-time_range*2) // 確定起始碼
{
Start = 1;
Data = 0;
Num = 0;
}
else if((Start == 1)&&(low_level>zero_low-time_range)&&(low_level<zero_low+time_range)) //數(shù)據(jù)0
{
Data = Data<<1;
Num++;
}
else if((Start == 1)&&(low_level>one_low-time_range)&&(low_level<one_low+time_range)) //數(shù)據(jù)1
{
Data = Data<<1;
Data = Data +1;
Num++;
}
else //錯(cuò)誤數(shù)據(jù)
{
Start = 0;
}
if((Num == data_full_len)&&(Start == 1)) //收到全部數(shù)據(jù)
{
Start = 0;
if(((Data == Data1)||(Data == Data2))&&(Data != 0xFF)) //收到兩遍相同的
{
*re_Data = Data; //得到數(shù)據(jù)
RxOk = 1;
Data = 0xFF;
Data1 = 0xFF;
Data2 = 0xFF;
}
else
{
Data2 = Data1;
Data1 = Data;
}
}
return 0;
}
/**
* 定時(shí)器初始化為pwm輸入捕獲(CLK為100us)
* @brief TIM2 Initialization Function
* @param None
* @retval None
*/
static void MX_TIM2_Init(void)
{
/* USER CODE BEGIN TIM2_Init 0 */
/* USER CODE END TIM2_Init 0 */
TIM_SlaveConfigTypeDef sSlaveConfig = {0};
TIM_IC_InitTypeDef sConfigIC = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
/* USER CODE BEGIN TIM2_Init 1 */
/* USER CODE END TIM2_Init 1 */
htim2.Instance = TIM2;
htim2.Init.Prescaler = 7200-1; //CLK大小改這里,現(xiàn)在為100us
htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
htim2.Init.Period = 50000;
htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_IC_Init(&htim2) != HAL_OK)
{
Error_Handler();
}
sSlaveConfig.SlaveMode = TIM_SLAVEMODE_RESET;
sSlaveConfig.InputTrigger = TIM_TS_TI1FP1;
sSlaveConfig.TriggerPolarity = TIM_INPUTCHANNELPOLARITY_FALLING;
sSlaveConfig.TriggerPrescaler = TIM_ICPSC_DIV1;
sSlaveConfig.TriggerFilter = 0;
if (HAL_TIM_SlaveConfigSynchronization(&htim2, &sSlaveConfig) != HAL_OK)
{
Error_Handler();
}
sConfigIC.ICPolarity = TIM_INPUTCHANNELPOLARITY_FALLING;
sConfigIC.ICSelection = TIM_ICSELECTION_DIRECTTI;
sConfigIC.ICPrescaler = TIM_ICPSC_DIV1;
sConfigIC.ICFilter = 0;
if (HAL_TIM_IC_ConfigChannel(&htim2, &sConfigIC, TIM_CHANNEL_1) != HAL_OK)
{
Error_Handler();
}
sConfigIC.ICPolarity = TIM_INPUTCHANNELPOLARITY_RISING;
sConfigIC.ICSelection = TIM_ICSELECTION_INDIRECTTI;
if (HAL_TIM_IC_ConfigChannel(&htim2, &sConfigIC, TIM_CHANNEL_2) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN TIM2_Init 2 */
HAL_TIM_IC_Start_IT(&htim2,TIM_CHANNEL_2); //打開定時(shí)器中斷
/* USER CODE END TIM2_Init 2 */
}
/**
* 433通信處理線程
*/
void deal433_entry(void *parameter)
{
unsigned int receive_addr; //接收到433信號(hào)的地址
unsigned int receive_control; //接收到433信號(hào)的功能代碼
MX_TIM2_Init();
while(1)
{
if(RxOk == 1) //接收完成
{
RxOk = 0;
/*接收到數(shù)據(jù)進(jìn)行數(shù)據(jù)處理*/
rt_kprintf("receive data is %#X\n",RxData);
receive_addr = RxData >> control_len ; //得到433信號(hào)地址
receive_control = RxData & 0xFF ; //得到433信號(hào)的功能代碼(根據(jù)需要的功能碼位數(shù)可能需要修改)
/*對(duì)遙控器地址進(jìn)行校驗(yàn)*/
if(receive_addr==remote_addr) //校驗(yàn)通過
{
/********************(自定義部分)***********************/
/*執(zhí)行相應(yīng)的功能*/
switch(receive_control)
{
case 0x11:
{
}break ;
}
/*********************************************************/
}
}
rt_thread_mdelay(1);
}
}
復(fù)制代碼
#include "433_send.h"
#include <rtthread.h>
#include <rtdevice.h>
#include <board.h>
//#include "delay.h"
//#include "gpio.h"
/**
* 程序名稱: 433信號(hào)發(fā)送
* 433發(fā)送過程:1.電平時(shí)間設(shè)置 Witty433_Init(unsigned int set_level_buf[8]) -->
* 2.發(fā)送內(nèi)容和次數(shù)設(shè)置 SendInput_433(unsigned char *data,unsigned int dataBitNum,unsigned char sendNum) -->
* 3.發(fā)送 StartSend_433()
* 433自定義內(nèi)容: 芯片類型、管腳操作、延時(shí)函數(shù)delay_us_433、delay_ms_433及芯片ID隨芯片/操作系統(tǒng)不同由用戶定義。
* 433的各個(gè)電平時(shí)間,433的地址碼,433的控制碼,433的發(fā)送次數(shù)由用戶自定義。
*/
/* 選擇芯片類型(用戶自定義) */
#define STM32FL151
/* 433發(fā)射管腳操作函數(shù)(用戶自定義) */
#define Pin_433_H HAL_GPIO_WritePin(GPIOA, GPIO_PIN_8,GPIO_PIN_SET)
#define Pin_433_L HAL_GPIO_WritePin(GPIOA, GPIO_PIN_8,GPIO_PIN_RESET)
/* 433延時(shí)函數(shù) */
static void (*delay_us_433)(unsigned int us);
static void (*delay_ms_433)(unsigned short ms);
static void delay_long_us(unsigned int long_us);
/* 433地址碼默認(rèn)設(shè)置*/
static unsigned int GetAddrFromChipID(unsigned char *addr);
static Witty433 witty433;
static unsigned char addr[3];
static unsigned int addr_len = 24;
void delay_long_us(unsigned int long_us)
{
unsigned short ms = long_us/1000;
unsigned int us = long_us%1000;
if(ms)delay_ms_433(ms);
if(us)delay_us_433(us);
}
unsigned int GetAddrFromChipID(unsigned char *addr)
{
#ifdef STM32F10X
addr[0]=*(unsigned char*)(0x1ffff7ed); //芯片ID第5、6、7位作為addr
addr[1]=*(unsigned char*)(0x1ffff7ee);
addr[2]=*(unsigned char*)(0x1ffff7ef);
#elif defined STM32FL151
addr[0]=*(unsigned char*)(0x1ff80055);
addr[1]=*(unsigned char*)(0x1ff80056);
addr[2]=*(unsigned char*)(0x1ff80057);
#elif defined ESP32 //esp32用戶自定義選擇--默認(rèn)隨機(jī)數(shù)
addr[0]=srand()%255;
addr[1]=srand()%255;
addr[2]=srand()%255;
#else
addr[0]=srand()%255; //未選擇芯片類型則隨機(jī)指定地址
addr[1]=srand()%255;
addr[2]=srand()%255;
#endif
return 3*8; //地址碼位數(shù)
}
/**********************************電平時(shí)間參數(shù)設(shè)置初始化(自定義部分)************************************/
void Witty433_Init(unsigned int set_level_buf[8]) //這個(gè)set_level_buf[8]數(shù)組保存的是各個(gè)電平時(shí)間,單位是us
{
SetStartLevelTime_433(set_level_buf[0],set_level_buf[1]); //設(shè)置起始碼 高 低 電平時(shí)間
SetOneLevelTime_433(set_level_buf[2],set_level_buf[3]); //設(shè)置bit1 高 低 電平時(shí)間
SetZeroLevelTime_433(set_level_buf[4],set_level_buf[5]); //設(shè)置bit0 高 低 電平時(shí)間
SetEndLevelTime_433(set_level_buf[6],set_level_buf[7]); //設(shè)置結(jié)束碼 高 低 電平時(shí)間
addr_len = GetAddrFromChipID(addr); //默認(rèn)選擇芯片ID的24Bit作為433地址碼,用戶可自行更改
SetAddr_433(addr,addr_len);
delay_us_433 = delay_us; //設(shè)置433微秒延時(shí)函數(shù)(自定義部分)
delay_ms_433 = delay_ms; //設(shè)置433毫秒延時(shí)函數(shù)(自定義部分)
witty433.delay_433 = delay_long_us;
}
/************************************* 433電平時(shí)間參數(shù)設(shè)置函數(shù) ****************************************/
/* 設(shè)置起始碼電平時(shí)間 */
void SetStartLevelTime_433(unsigned int time_H,unsigned int time_L)
{
witty433.StartLevelTime_H = time_H;
witty433.StartLevelTime_L = time_L;
}
/* 設(shè)置結(jié)束碼電平時(shí)間 */
void SetEndLevelTime_433(unsigned int time_H,unsigned int time_L)
{
witty433.EndLevelTime_H = time_H;
witty433.EndLevelTime_L = time_L;
}
/* 設(shè)置bit0電平時(shí)間 */
void SetZeroLevelTime_433(unsigned int time_H,unsigned int time_L)
{
witty433.ZeroLevelTime_H = time_H;
witty433.ZeroLevelTime_L = time_L;
}
/* 設(shè)置bit1電平時(shí)間 */
void SetOneLevelTime_433(unsigned int time_H,unsigned int time_L)
{
witty433.OneLevelTime_H = time_H;
witty433.OneLevelTime_L = time_L;
}
/******************************* 433發(fā)送參數(shù)設(shè)置函數(shù) ****************************************/
/* 設(shè)置地址碼 */
void SetAddr_433(unsigned char *addr,unsigned int addrBitNum)
{
witty433.Addr = addr;
witty433.AddrBitNum = addrBitNum;
}
/* 設(shè)置數(shù)據(jù)域 */
void SetSendData_433(unsigned char *sendData,unsigned int sendDataBitNum)
{
witty433.SendData = sendData;
witty433.SendDataBitNum = sendDataBitNum;
}
/* 設(shè)置連續(xù)發(fā)送次數(shù) */
void SetSendNumber_433(unsigned char sendNumber)
{
witty433.SendNumber = sendNumber;
}
/******************************* 發(fā)送初始化函數(shù) ****************************************/
/* 傳入發(fā)送參數(shù)內(nèi)容--數(shù)據(jù)域及發(fā)送次數(shù) */
void SendInput_433(unsigned char *data,unsigned int dataBitNum,unsigned char sendNum)
{
SetSendNumber_433(sendNum); //設(shè)置sendNum連續(xù)發(fā)送次數(shù),不同廠商的可能不一樣,需要注意
SetSendData_433(data,dataBitNum); //data數(shù)組是具體的控制數(shù)據(jù),dataBitNum是數(shù)據(jù)的位數(shù)
}
/*******************************發(fā)送一次433信號(hào)***************************************/
void StartSend_433() //先傳入發(fā)送參數(shù),再發(fā)送
{
int i = 0;
for(i = 0; i < witty433.SendNumber; i++)
{
SendStart_433();
SendAddr();
SendData();
}
SendEnd_433();
}
/************************************************************************************/
/* 發(fā)送起始碼 */
void SendStart_433()
{
Pin_433_H;
witty433.delay_433(witty433.StartLevelTime_H);
Pin_433_L;
witty433.delay_433(witty433.StartLevelTime_L);
}
/* 發(fā)送地址碼 */
void SendAddr()
{
unsigned char byteNum = witty433.AddrBitNum/8;
unsigned char bitNum = witty433.AddrBitNum%8;
unsigned char i = 0;
for(i = 0; i < byteNum; i++)
{
SendBit_433(witty433.Addr[i],8);
}
SendBit_433(witty433.Addr[i],bitNum);
}
/* 發(fā)送數(shù)據(jù)域 */
void SendData()
{
unsigned char byteNum = witty433.SendDataBitNum/8;
unsigned char bitNum = witty433.SendDataBitNum%8;
unsigned char i = 0;
for(i = 0; i < byteNum; i++)
{
SendBit_433(witty433.SendData[i],8);
}
SendBit_433(witty433.SendData[i],bitNum);
}
/* 發(fā)送結(jié)束碼 */
void SendEnd_433()
{
Pin_433_H;
witty433.delay_433(witty433.EndLevelTime_H);
Pin_433_L;
witty433.delay_433(witty433.EndLevelTime_L);
}
/* 發(fā)送bit0 */
void SendBit0_433()
{
Pin_433_H;
witty433.delay_433(witty433.ZeroLevelTime_H);
Pin_433_L;
witty433.delay_433(witty433.ZeroLevelTime_L);
}
/* 發(fā)送bit1 */
void SendBit1_433()
{
Pin_433_H;
witty433.delay_433(witty433.OneLevelTime_H);
Pin_433_L;
witty433.delay_433(witty433.OneLevelTime_L);
}
/* 發(fā)送16進(jìn)制數(shù)據(jù)--1Byte */
void SendHex_433(unsigned char byte)
{
SendBit_433(byte,8);
}
/* 發(fā)送bit數(shù)據(jù)--待發(fā)送數(shù)據(jù)及待發(fā)送數(shù)據(jù)bit數(shù)0~8 */
void SendBit_433(unsigned char byte,unsigned char bitNum)
{
unsigned short data = (0x01<<bitNum)>>1; //
unsigned char i = 0;
for(i = 0;i < bitNum;i++)
{
if(byte & data)
{
SendBit1_433();
}
else
{
SendBit0_433();
}
data=data>>1;
}
}
復(fù)制代碼
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2023-10-25 02:55 上傳
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deal433-master.zip
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作者:
devcang
時(shí)間:
2023-10-25 13:20
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