433M串口模块无线通信（STM32）

一、前期准备
单片机：STM32F103C8T6*2
开发环境：MDK5.14
库函数：标准库V3.5
433M模块：淘宝有售

二、实验效果
2.1 Master 初始化

2.2 Slave 初始化

2.3 Master发送，Slave接收

2.4 Slave发送，Master接收

三、驱动原理
按照文档配置，SET脚置1为配置模式，绿色灯会亮起，SET脚清零为工作模式。
需要完整工程或者有问题的请加QQ：1002521871，验证：呵呵。

四、驱动代码
4.1 Master
wireless_433m.h

#ifndef __CONF_433M_H__
#define __CONF_433M_H__
#include "stm32f10x.h"
#include "gpio.h"
#include "uart.h"
//Rate of Work
#define     Rate_Defualt        0x00        //20dBm
#define     Rate_1dBm           0x01
#define     Rate_2dBm           0x02
#define     Rate_5dBm           0x03
#define     Rate_8dBm           0x04
#define     Rate_11dBm          0x05
#define     Rate_14dBm          0x06
#define     Rate_17dBm          0x07
#define     Rate_20dBm          0x08//Baudrate
#define     Buad_Default        0x00        //9600
#define     Buad_1200           0x01
#define     Buad_2400           0x02
#define     Buad_4800           0x03
#define     Buad_9600           0x04
#define     Buad_19200          0x05
#define     Buad_38400          0x06
#define     Buad_57600          0x07
#define     Buad_115200         0x08//RF Baudrate
#define     RF_Buad_Defualt     0x00        //10k bps
#define     RF_Baud_500         0x01
#define     RF_Baud_2400        0x02
#define     RF_Baud_10000       0x03
#define     RF_Baud_20000       0x04
#define     RF_Baud_40000       0x05
#define     RF_Baud_100000      0x06
#define     RF_Baud_150000      0x07
#define     RF_Baud_250000      0x08//Serial Port Format
#define     Serial_Mode_default 0x00        //8N1
#define     Serial_Mode_8N1     0x01
#define     Serial_Mode_8O1     0x02
#define     Serial_Mode_8E1     0x03//Frequency Band
#define     Frequency_Default   0x02
#define     Frequency_433M      0x00
#define     Frequency_315M      0x01
#define     Frequency_433M_1    0x02
#define     Frequency_868M_915M 0x03/* Master IO Definitions */
#define     M_TXD_Pin       GPIO_Pin_2
#define     M_RXD_Pin       GPIO_Pin_3
#define     M_SET           PAout(5)
#define     M_Mode_Config   M_SET = 0
#define     M_Mode_Work     M_SET = 1#define       M_Test_Key      PAin(0)#define      RecLen      64extern uint8_t M_RecData[RecLen];
extern uint8_t *M_pIndex;
extern uint8_t *M_pWrite;
extern uint8_t *M_pRead;
extern uint8_t M_DataLen;extern void Wireless_433MConfiguration(void);
extern void Wireless_433MInitalized(void);
#endif

wireless_433m.c

#include "conf_433m.h"uint8_t M_RecData[RecLen] = {0};
uint8_t *M_pIndex = M_RecData;
uint8_t *M_pWrite = M_RecData;
uint8_t *M_pRead = M_RecData;
uint8_t M_DataLen = 0;void Wireless_433MConfiguration(void)
{GPIO_InitTypeDef    GPIO;//Enable APB2 BusRCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);//Register IO GPIO.GPIO_Pin   = GPIO_Pin_5;GPIO.GPIO_Speed = GPIO_Speed_50MHz;GPIO.GPIO_Mode  = GPIO_Mode_Out_OD;GPIO_Init(GPIOA, &GPIO);GPIO.GPIO_Pin   = GPIO_Pin_0;GPIO.GPIO_Mode  = GPIO_Mode_IPU;GPIO_Init(GPIOA, &GPIO);M_Mode_Config;
}void Wireless_433MInitalized(void)
{uint8_t Wireless_433_Conf[15] = {0};uint16_t Base_Freq = 430;uint8_t i = 0;uint16_t Checksum = 0;//F8 00 00 00 28 12 34 12 34 00 00 02 B6//0  1  2  3  4  5  6  7  8  9  10 11 12Wireless_433_Conf[0] = 0xF8;Wireless_433_Conf[1] = Buad_Default;Wireless_433_Conf[2] = Rate_Defualt;Wireless_433_Conf[3] = (uint8_t)(((434 - Base_Freq)*10) / 256);Wireless_433_Conf[4] = (uint8_t)(((434 - Base_Freq)*10) % 256);Wireless_433_Conf[5] = 0x11;Wireless_433_Conf[6] = 0x11;Wireless_433_Conf[7] = 0x22;Wireless_433_Conf[8] = 0x22;Wireless_433_Conf[9] = RF_Buad_Defualt;Wireless_433_Conf[10] = Serial_Mode_default;Wireless_433_Conf[11] = Frequency_Default;for (i = 1; i < 12; i ++){Checksum += Wireless_433_Conf[i];}Wireless_433_Conf[12] = (uint8_t)(Checksum % 256);printf("Master Config Cmd: ");for (i = 0; i < 13; i ++){printf("%02X ", Wireless_433_Conf[i]);}printf("\r\n");for (i = 0; i  < 13; i ++){USART_Send(USART2, Wireless_433_Conf[i]);}while(M_DataLen == 0);printf("M_RecData: %s\r\n", M_RecData);if (M_DataLen == 2){if (M_RecData[0] == 'O' && M_RecData[1] == 'K')printf("Config Master PASS!\r\n");}else if (M_DataLen == 5){printf("Config Master Error!\r\n");}else{printf("DataLen = %d!\r\n", M_DataLen);}M_DataLen = 0;memset(M_RecData, 0, RecLen);M_Mode_Work;
}

4.2 Slave
wireless_433m.h

#ifndef __CONF_433M_H__
#define __CONF_433M_H__
#include "stm32f10x.h"
#include "gpio.h"
#include "uart.h"
//Rate of Work
#define     Rate_Defualt        0x00        //20dBm
#define     Rate_1dBm           0x01
#define     Rate_2dBm           0x02
#define     Rate_5dBm           0x03
#define     Rate_8dBm           0x04
#define     Rate_11dBm          0x05
#define     Rate_14dBm          0x06
#define     Rate_17dBm          0x07
#define     Rate_20dBm          0x08//Baudrate
#define     Buad_Default        0x00        //9600
#define     Buad_1200           0x01
#define     Buad_2400           0x02
#define     Buad_4800           0x03
#define     Buad_9600           0x04
#define     Buad_19200          0x05
#define     Buad_38400          0x06
#define     Buad_57600          0x07
#define     Buad_115200         0x08//RF Baudrate
#define     RF_Buad_Defualt     0x00        //10k bps
#define     RF_Baud_500         0x01
#define     RF_Baud_2400        0x02
#define     RF_Baud_10000       0x03
#define     RF_Baud_20000       0x04
#define     RF_Baud_40000       0x05
#define     RF_Baud_100000      0x06
#define     RF_Baud_150000      0x07
#define     RF_Baud_250000      0x08//Serial Port Format
#define     Serial_Mode_default 0x00        //8N1
#define     Serial_Mode_8N1     0x01
#define     Serial_Mode_8O1     0x02
#define     Serial_Mode_8E1     0x03//Frequency Band
#define     Frequency_Default   0x02
#define     Frequency_433M      0x00
#define     Frequency_315M      0x01
#define     Frequency_433M_1    0x02
#define     Frequency_868M_915M 0x03/* Slave IO Definitions */
#define     S_TXD_Pin       GPIO_Pin_2
#define     S_RXD_Pin       GPIO_Pin_3
#define     S_SET           PAout(5)
#define     S_Mode_Config   S_SET = 0
#define     S_Mode_Work     S_SET = 1#define       S_Test_Key      PAin(0)#define      RecLen      64extern uint8_t S_RecData[RecLen];
extern uint8_t *S_pIndex;
extern uint8_t *S_pWrite;
extern uint8_t *S_pRead;
extern uint8_t S_DataLen;extern void Wireless_433MConfiguration(void);
extern void Wireless_433MInitalized(void);
#endif

wireless_433.c

#include "conf_433m.h"uint8_t S_RecData[RecLen] = {0};
uint8_t *S_pIndex = S_RecData;
uint8_t *S_pWrite = S_RecData;
uint8_t *S_pRead = S_RecData;
uint8_t S_DataLen = 0;void Wireless_433MConfiguration(void)
{GPIO_InitTypeDef    GPIO;//Enable APB2 BusRCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);//Register IO GPIO.GPIO_Pin   = GPIO_Pin_5;GPIO.GPIO_Speed = GPIO_Speed_50MHz;GPIO.GPIO_Mode  = GPIO_Mode_Out_OD;GPIO_Init(GPIOA, &GPIO);GPIO.GPIO_Pin   = GPIO_Pin_0;GPIO.GPIO_Mode  = GPIO_Mode_IPU;GPIO_Init(GPIOA, &GPIO);S_Mode_Config;
}void Wireless_433MInitalized(void)
{uint8_t Wireless_433_Conf[15] = {0};uint16_t Base_Freq = 430;uint8_t i = 0;uint16_t Checksum = 0;//F8 00 00 00 28 12 34 12 34 00 00 02 B6//0  1  2  3  4  5  6  7  8  9  10 11 12Wireless_433_Conf[0] = 0xF8;Wireless_433_Conf[1] = Buad_Default;Wireless_433_Conf[2] = Rate_Defualt;Wireless_433_Conf[3] = (uint8_t)(((434 - Base_Freq)*10) / 256);Wireless_433_Conf[4] = (uint8_t)(((434 - Base_Freq)*10) % 256);Wireless_433_Conf[5] = 0x22;Wireless_433_Conf[6] = 0x22;Wireless_433_Conf[7] = 0x11;Wireless_433_Conf[8] = 0x11;Wireless_433_Conf[9] = RF_Buad_Defualt;Wireless_433_Conf[10] = Serial_Mode_default;Wireless_433_Conf[11] = Frequency_Default;for (i = 1; i < 12; i ++){Checksum += Wireless_433_Conf[i];}Wireless_433_Conf[12] = (uint8_t)(Checksum % 256);printf("Slave Config Cmd: ");for (i = 0; i < 13; i ++){printf("%02X ", Wireless_433_Conf[i]);}printf("\r\n");for (i = 0; i  < 13; i ++){USART_Send(USART2, Wireless_433_Conf[i]);}while(S_DataLen == 0);printf("S_RecData: %s\r\n", S_RecData);if (S_DataLen == 2){if (S_RecData[0] == 'O' && S_RecData[1] == 'K')printf("Config Slave PASS!\r\n");}else if (S_DataLen == 5){printf("Config Slave Error!\r\n");}else{printf("DataLen = %d!\r\n", S_DataLen);}S_DataLen = 0;memset(S_RecData, 0, RecLen);S_Mode_Work;
}

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