stm32f103c8t6+sx1278無線433 lora程序分享

ID:1111542 · 發(fā)表于 2024-2-25 18:44

stm32f103c8t6+sx1278無線433lora程序分享，安信可sx1278模塊遠(yuǎn)距離無線傳輸.
#include "stm32f10x.h"
#include "HAL_uart.h"
#include "usmart.h"
#include "string.h"
#include "radio.h"
#include "delay.h"

#define USE_BAND_433       // 選擇一個頻率
#define USE_MODEM_LORA       // 選擇lora模式

#if defined(USE_BAND_433)
#define RF_FREQUENCY 434000000 // Hz
#elif defined(USE_BAND_780)
#define RF_FREQUENCY 780000000 // Hz
#elif defined(USE_BAND_868)
#define RF_FREQUENCY 868000000 // Hz
#elif defined(USE_BAND_915)
#define RF_FREQUENCY 915000000 // Hz
#else
#error "Please define a frequency band in the compiler options."
#endif

#define TX_OUTPUT_POWER 20 // dBm

#if defined(USE_MODEM_LORA)
#define LORA_BANDWIDTH 0 // [0: 125 kHz, 1: 250 kHz,  2: 500 kHz, 3: 保留]
#define LORA_SPREADING_FACTOR 7  // [SF7..SF12]
#define LORA_CODINGRATE 1       // [1: 4/5, 2: 4/6, 3: 4/7, 4: 4/8]
#define LORA_PREAMBLE_LENGTH 8 // 發(fā)送和接收的前導(dǎo)碼長度相同
#define LORA_SYMBOL_TIMEOUT 5 // 符號
#define LORA_FIX_LENGTH_PAYLOAD_ON false
#define LORA_IQ_INVERSION_ON false
#elif defined(USE_MODEM_FSK)
#define FSK_FDEV 25e3          // Hz
#define FSK_DATARATE 50e3       // bps
#define FSK_BANDWIDTH 50e3       // Hz
#define FSK_AFC_BANDWIDTH 83.333e3 // Hz
#define FSK_PREAMBLE_LENGTH 5    // 發(fā)送和接收的前導(dǎo)碼長度相同
#define FSK_FIX_LENGTH_PAYLOAD_ON false
#else
#error "Please define a modem in the compiler options."
#endif

#define RX_TIMEOUT_VALUE 1000
#define BUFFER_SIZE 64 // 定義數(shù)據(jù)包大小

#define MSG "hello"

uint16_t BufferSize = BUFFER_SIZE;
uint8_t Buffer[BUFFER_SIZE];

int8_t RssiValue = 0;
int8_t SnrValue = 0;

/*!
* 定義射頻事件函數(shù)指針的結(jié)構(gòu)體:RadioEvents
*/
static RadioEvents_t RadioEvents;

/*!
* \brief 射頻發(fā)送完成事件處理函數(shù)
*/
void OnTxDone(void);

/*!
* \brief 射頻接收完成事件處理函數(shù)
*/
void OnRxDone(uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr);

/*!
* \brief 射頻發(fā)送超時事件處理函數(shù)
*/
void OnTxTimeout(void);

/*!
* \brief 射頻接收超時事件處理函數(shù)
*/
void OnRxTimeout(void);

/*!
* \brief 射頻接收錯誤事件處理函數(shù)
*/
void OnRxError(void);

/*!
* USART1回調(diào)函數(shù)，用于處理接收到的數(shù)據(jù)
*/
void uart1callBackTest(uint8_t data);

/*!
* LED和按鍵初始化
*/
void ledInit(void);

int main(void)
{
bool isMaster = true; // 設(shè)定為主機
// bool isMaster = false; // 設(shè)定為從機

uint32_t count = 0;

delay_init(); // 延時函數(shù)初始化

NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2); // 中斷優(yōu)先級分組配置
HALUart1Init(115200, uart1callBackTest);
ledInit();

if (isMaster)
{
      printf("This is master\r\n");
}
else
{
      printf("This is slave\r\n");
}

// 使用usmart庫進行遠(yuǎn)程調(diào)試
usmart_dev.init(SystemCoreClock/1000000); // 初始化usmart

// 射頻初始化
Radio.Init(&RadioEvents);
Radio.SetChannel(RF_FREQUENCY);
Radio.SetTxConfig(MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
                  LORA_SPREADING_FACTOR, LORA_CODINGRATE,
                  LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
                  true, 0, 0, LORA_IQ_INVERSION_ON, 3000);

Radio.SetRxConfig(MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,
                  LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH,
                  LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON,
                  0, true, 0, 0, LORA_IQ_INVERSION_ON, true);

if (!isMaster)
{
      Radio.Rx(RX_TIMEOUT_VALUE);
}

while (1)
{
      if (isMaster)
      {
         count = 0;
         while (GPIO_ReadInputDataBit(GPIOB, GPIO_Pin_13) == 0)
         {
            delay_ms(2);
            if (count++ > 50)
            {
                  // 按鍵被按下
                  printf("Sent message\r\n");
                  Radio.Send((uint8_t *)MSG, strlen(MSG));
                  delay_ms(3000);
            }
         }
      }
}
}

/*!
* 射頻發(fā)送完成事件處理函數(shù)
*/
void OnTxDone(void)
{
Radio.Sleep();
printf("TxDone\r\n");
}

/*!
* 射頻接收完成事件處理函數(shù)
*/
void OnRxDone(uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr)
{
static bool ledStatus = false;
Radio.Sleep();

memset(Buffer, 0, BUFFER_SIZE);
BufferSize = size;
memcpy(Buffer, payload, BufferSize);
RssiValue = rssi;
SnrValue = snr;
printf("RxDone\r\nrssi:%d\r\nsnr:%d\r\nsize:%d\r\ndata:payload:%s\r\n", rssi, snr, size, payload);

if (strncmp((const char *)Buffer, (const char *)MSG, 4) == 0)
{
      if (ledStatus)
      {
         GPIO_ResetBits(GPIOB, GPIO_Pin_12);
      }
      else
      {
         GPIO_SetBits(GPIOB, GPIO_Pin_12);
      }
      ledStatus = !ledStatus;
}

Radio.Rx(RX_TIMEOUT_VALUE);
}

/*!
* 射頻發(fā)送超時事件處理函數(shù)
*/
void OnTxTimeout(void)
{
Radio.Sleep();
printf("TxTIMEOUT\r\n");
}

/*!
* 射頻接收超時事件處理函數(shù)
*/
void OnRxTimeout(void)
{
Radio.Sleep();
printf("RxTIMEOUT retry recive\r\n");
Radio.Rx(RX_TIMEOUT_VALUE);
}

/*!
* 射頻接收錯誤事件處理函數(shù)
*/
void OnRxError(void)
{
Radio.Sleep();
printf("RxError  retry recive\r\n");
Radio.Rx(RX_TIMEOUT_VALUE);
}

/*!
* USART1回調(diào)函數(shù)，用于處理接收到的數(shù)據(jù)
*/
void uart1callBackTest(uint8_t data)
{
uint8_t Res;
Res = USART_ReceiveData(USART1); // 讀取接收到的數(shù)據(jù)

if ((USART_RX_STA & 0x8000) == 0) // 接收未完成
{
      if (USART_RX_STA & 0x4000) // 接收到了0x0d
      {
         if (Res != 0x0a)
            USART_RX_STA = 0; // 接收錯誤，重新開始
         else
            USART_RX_STA |= 0x8000; // 接收完成
      }
      else // 還沒收到0X0D
      {
         if (Res == 0x0d)
            USART_RX_STA |= 0x4000;
         else
         {
            USART_RX_BUF[USART_RX_STA & 0X3FFF] = Res;
            USART_RX_STA++;
            if (USART_RX_STA > (USART_REC_LEN - 1))
                  USART_RX_STA = 0; // 接收數(shù)據(jù)錯誤，重新開始接收
         }
      }
}
}

/*!
* LED和按鍵的初始化
*/
void ledInit(void)
{
GPIO_InitTypeDef GPIO_InitStructure;

// 初始化LED
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);

// 初始化按鍵
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_13;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}

原理圖: 無
仿真: 無
代碼:

SX127xLED點對點控制demo.7z (462.08 KB, 下載次數(shù): 20)

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stm32f103c8t6+sx1278無線433 lora程序分享

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