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#include <string.h>
#include "user.h"
#include "sx126x-board.h"
/**************************************************************************************************************************************
Demo 程序流程 EnableMaster=true 為主機端，主機端發送一個"PING"數據后切換到接收，等待從機返回的應答"PONG"數據LED閃爍
EnableMaster=false 為從機端，從機端接收到主機端發過來的"PING"數據后LED閃爍并發送一個"PONG"數據作為應答
***************************************************************************************************************************************/
#define USE_MODEM_LORA
#define REGION_CN779
#if defined( REGION_AS923 )
#define RF_FREQUENCY 923000000 // Hz
#elif defined( REGION_AU915 )
#define RF_FREQUENCY 915000000 // Hz
#elif defined( REGION_CN779 )
#define RF_FREQUENCY 434000000 // Hz
#elif defined( REGION_EU868 )
#define RF_FREQUENCY 868000000 // Hz
#elif defined( REGION_KR920 )
#define RF_FREQUENCY 920000000 // Hz
#elif defined( REGION_IN865 )
#define RF_FREQUENCY 865000000 // Hz
#elif defined( REGION_US915 )
#define RF_FREQUENCY 915000000 // Hz
#elif defined( REGION_US915_HYBRID )
#define RF_FREQUENCY 915000000 // Hz
#else
#error "Please define a frequency band in the compiler options."
#endif
#define TX_OUTPUT_POWER 22 // 22 dBm
extern bool IrqFired;
bool EnableMaster=false;//主從選擇
uint16_t crc_value;
/*!
* Radio events function pointer
*/
static RadioEvents_t RadioEvents;
#if defined( USE_MODEM_LORA )
#define LORA_BANDWIDTH 1 // [0: 125 kHz,
// 1: 250 kHz,
// 2: 500 kHz,
// 3: Reserved]
#define LORA_SPREADING_FACTOR 11 // [SF7..SF12]
#define LORA_CODINGRATE 2 // [1: 4/5,
// 2: 4/6,
// 3: 4/7,
// 4: 4/8]
#define LORA_PREAMBLE_LENGTH 8 // Same for Tx and Rx
#define LORA_SYMBOL_TIMEOUT 0 // Symbols
#define LORA_FIX_LENGTH_PAYLOAD_ON false
#define LORA_IQ_INVERSION_ON false
#elif defined( USE_MODEM_FSK )
#define FSK_FDEV 5e3 // Hz
#define FSK_DATARATE 2.4e3 // bps
#define FSK_BANDWIDTH 20e3 // Hz >> DSB in sx126x
#define FSK_AFC_BANDWIDTH 100e3 // Hz
#define FSK_PREAMBLE_LENGTH 5 // Same for Tx and Rx
#define FSK_FIX_LENGTH_PAYLOAD_ON false
#else
#error "Please define a modem in the compiler options."
#endif
typedef enum
{
LOWPOWER,
RX,
RX_TIMEOUT,
RX_ERROR,
TX,
TX_TIMEOUT,
}States_t;
#define RX_TIMEOUT_VALUE 1000
#define BUFFER_SIZE 64 // Define the payload size here
const uint8_t PingMsg[] = "PING";
const uint8_t PongMsg[] = "PONG";
uint16_t BufferSize = BUFFER_SIZE;
uint8_t TX_Buffer[BUFFER_SIZE];
uint8_t RX_Buffer[BUFFER_SIZE];
States_t State = LOWPOWER;
int8_t RssiValue = 0;
int8_t SnrValue = 0;
void OnTxDone( void );
void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr );
void OnTxTimeout( void );
void OnRxTimeout( void );
void OnRxError( void );
void SysClock_48()
{
RCC_PLLCmd(DISABLE);
RCC_PLLConfig(RCC_PLLSource_HSI_Div2, RCC_PLLMul_12);//48M
RCC_PLLCmd(ENABLE);
while(!RCC_GetFlagStatus(RCC_FLAG_PLLRDY));
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
}
void Tick_Configration()
{
/* Setup SysTick Timer for 1ms interrupts ( not too often to save power ) */
if( SysTick_Config( SystemCoreClock / 1000 ) )
{
/* Capture error */
while (1);
}
}
void RCC_Configuration()
{
/* Enable GPIO clock */
RCC_AHBPeriphClockCmd(RCC_AHBPeriph_GPIOA|RCC_AHBPeriph_GPIOB|RCC_AHBPeriph_GPIOC|RCC_AHBPeriph_GPIOF, ENABLE);
/* Enable peripheral Clock */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_SPI2|RCC_APB1Periph_PWR, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1|RCC_APB2Periph_SYSCFG, ENABLE);
}
void HW_int(void)
{
SysClock_48();
Tick_Configration();
RCC_Configuration();
GPIO_int();
SPI2_Int();
}
void LedToggle(void)
{
GPIO_WriteBit( LED1_PORT, LED1_PIN,Bit_RESET);//LED閃爍
HAL_Delay_nMS(10);
GPIO_WriteBit( LED1_PORT, LED1_PIN,Bit_SET);
}
int main( void )
{
// uint8_t data[2]={0x12,0x34};
// static uint8_t test[2];
HW_int();//MCU外圍資源初始化
// Radio initialization
RadioEvents.TxDone = OnTxDone;
RadioEvents.RxDone = OnRxDone;
RadioEvents.TxTimeout = OnTxTimeout;
RadioEvents.RxTimeout = OnRxTimeout;
RadioEvents.RxError = OnRxError;
Radio.Init( &RadioEvents );
Radio.SetChannel( RF_FREQUENCY );
// Radio.WriteBuffer(0x06C0,data,2);
// Radio.ReadBuffer(0x06C0,test,2);
#if defined( USE_MODEM_LORA )
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, false );
#elif defined( USE_MODEM_FSK )
Radio.SetTxConfig( MODEM_FSK, TX_OUTPUT_POWER, FSK_FDEV, 0,
FSK_DATARATE, 0,
FSK_PREAMBLE_LENGTH, FSK_FIX_LENGTH_PAYLOAD_ON,
true, 0, 0, 0, 3000 );
Radio.SetRxConfig( MODEM_FSK, FSK_BANDWIDTH, FSK_DATARATE,
0, FSK_AFC_BANDWIDTH, FSK_PREAMBLE_LENGTH,
0, FSK_FIX_LENGTH_PAYLOAD_ON, 0, true,
0, 0,false, true );
#else
#error "Please define a frequency band in the compiler options."
#endif
if(EnableMaster)
{
TX_Buffer[0] = 'P';
TX_Buffer[1] = 'I';
TX_Buffer[2] = 'N';
TX_Buffer[3] = 'G';
crc_value=RadioComputeCRC(TX_Buffer,4,CRC_TYPE_IBM);//計算得出要發送數據包CRC值
TX_Buffer[4]=crc_value>>8;
TX_Buffer[5]=crc_value;
Radio.Send( TX_Buffer, 6);
}
else
{
Radio.Rx( RX_TIMEOUT_VALUE );
}
while( 1 )
{
Radio.IrqProcess( ); // Process Radio IRQ
}
}
void OnTxDone( void )
{
Radio.Standby();
Radio.Rx( RX_TIMEOUT_VALUE ); //進入接收
}
void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
{
BufferSize = size;
memcpy( RX_Buffer, payload, BufferSize );
RssiValue = rssi;
SnrValue = snr;
Radio.Standby();
if(EnableMaster)
{
if(memcmp(RX_Buffer,PongMsg,4)==0)
{
LedToggle();//LED閃爍
}
TX_Buffer[0] = 'P';
TX_Buffer[1] = 'I';
TX_Buffer[2] = 'N';
TX_Buffer[3] = 'G';
crc_value=RadioComputeCRC(TX_Buffer,4,CRC_TYPE_IBM);//計算得出要發送數據包CRC值
TX_Buffer[4]=crc_value>>8;
TX_Buffer[5]=crc_value;
Radio.Send( TX_Buffer, 6);
}
else
{
if(memcmp(RX_Buffer,PingMsg,4)==0)
{
LedToggle();//LED閃爍
TX_Buffer[0] = 'P';
TX_Buffer[1] = 'O';
TX_Buffer[2] = 'N';
TX_Buffer[3] = 'G';
crc_value=RadioComputeCRC(TX_Buffer,4,CRC_TYPE_IBM);//計算得出要發送數據包CRC值
TX_Buffer[4]=crc_value>>8;
TX_Buffer[5]=crc_value;
Radio.Send( TX_Buffer, 6);
}
else
{
Radio.Rx( RX_TIMEOUT_VALUE );
}
}
}
void OnTxTimeout( void )
{
}
void OnRxTimeout( void )
{
Radio.Standby();
if(EnableMaster)
{
TX_Buffer[0] = 'P';
TX_Buffer[1] = 'I';
TX_Buffer[2] = 'N';
TX_Buffer[3] = 'G';
crc_value=RadioComputeCRC(TX_Buffer,4,CRC_TYPE_IBM);//計算得出要發送數據包CRC值
TX_Buffer[4]=crc_value>>8;
TX_Buffer[5]=crc_value;
Radio.Send( TX_Buffer, 6);
}
else
{
Radio.Rx( RX_TIMEOUT_VALUE );
}
}
void OnRxError( void )
{
}

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