/** ****************************************************************************** * @file : KWireLess.c * @brief : K-WireLess Protocol program body ****************************************************************************** */ #include "KWireLess.h" #include "functions.h" #include "string.h" #include "PLCFunctions.h" #include "stm32f0xx_hal.h" /************************************************************************************************************************************** Demo 程序流程 RadioEnableMaster=true 为主机端，主机端发送一个"PING"数据后切换到接收，等待从机返回的应答"PONG"数据LED闪烁 RadioEnableMaster=false 为从机端，从机端接收到主机端发过来的"PING"数据后LED闪烁并发送一个"PONG"数据作为应答 ***************************************************************************************************************************************/ //#define USE_MODEM_LORA #define USE_MODEM_FSK #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 433000000 // 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 nChannelBandwidth 100000 // Hz #define TX_OUTPUT_POWER 22 // 22 dBm extern bool IrqFired; bool RadioEnableMaster=true;//主从选择 uint32_t nRadioChannel=0; uint16_t crc_value; /*! * Radio events function pointer */ static RadioEvents_t RadioEvents; #if defined( USE_MODEM_LORA ) #define LORA_BANDWIDTH 0 // [0: 125 kHz, // 1: 250 kHz, // 2: 500 kHz, // 3: Reserved] #define LORA_SPREADING_FACTOR 9 // [SF7..SF12] #define LORA_CODINGRATE 4 // [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 12e3 // Hz #define FSK_DATARATE 19.2e3 // bps #define FSK_BANDWIDTH 50e3 // Hz >> DSB in sx126x #define FSK_AFC_BANDWIDTH 200e3 // 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 100 #define BUFFER_SIZE 32 // 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; KWStates KW_State=KW_PON; void LedToggle(void) { // GPIO_WriteBit( LED1_PORT, LED1_PIN,Bit_RESET);//LED闪烁 // HAL_Delay_nMS(10); // GPIO_WriteBit( LED1_PORT, LED1_PIN,Bit_SET); LL_GPIO_TogglePin(GPIOC,LL_GPIO_PIN_13); } int KWireLessInit(bool bRadioEnableMaster, uint32_t nChn) { RadioEnableMaster = bRadioEnableMaster; // Radio initialization RadioEvents.TxDone = OnTxDone; RadioEvents.RxDone = OnRxDone; RadioEvents.TxTimeout = OnTxTimeout; RadioEvents.RxTimeout = OnRxTimeout; RadioEvents.RxError = OnRxError; Radio.Init( &RadioEvents ); nRadioChannel = nChn; Radio.SetChannel( RF_FREQUENCY + nRadioChannel * nChannelBandwidth ); // 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, false ); #else #error "Please define a frequency band in the compiler options." #endif SX126xSetRxTxFallbackMode(0x40); // 0x40-> FS 0x30 -> SD_XOSC 0x20 -> SD_RC return 0; } int KWireLessStart(void) { if(RadioEnableMaster) { SendPingMsg(); /* TX_Buffer[0] = 'P'; TX_Buffer[1] = 'I'; TX_Buffer[2] = 'N'; TX_Buffer[3] = 'G'; TX_Buffer[4] = 'G'; TX_Buffer[5] = 'G'; TX_Buffer[6] = 'G'; TX_Buffer[7] = 'G'; crc_value=RadioComputeCRC(TX_Buffer,8,CRC_TYPE_IBM);//计算得出要发送数据包CRC值 TX_Buffer[8]=crc_value>>8; TX_Buffer[9]=crc_value; Radio.Send( TX_Buffer, 10); */ } else { Radio.Rx( RX_TIMEOUT_VALUE ); } // while( 1 ) // { // Radio.IrqProcess( ); // Process Radio IRQ // } return 0; } void SendPingMsg() { int len1=12; TX_Buffer[0] = 'P'; TX_Buffer[1] = 'I'; TX_Buffer[2] = 'N'; TX_Buffer[3] = 'G'; TX_Buffer[4] = KMem.WY[1]>>8; TX_Buffer[5] = KMem.WY[1]; TX_Buffer[6] = KMem.WY[2]>>8; TX_Buffer[7] = KMem.WY[2]; crc_value=RadioComputeCRC(TX_Buffer,len1,CRC_TYPE_IBM);//计算得出要发送数据包CRC值 TX_Buffer[len1]=crc_value>>8; TX_Buffer[len1+1]=crc_value; Radio.Send( TX_Buffer, len1+2); } void SendPongMsg(int len1) { TX_Buffer[0] = 'P'; TX_Buffer[1] = 'O'; TX_Buffer[2] = 'N'; TX_Buffer[3] = 'G'; TX_Buffer[4] = KMem.WX[0]>>8; TX_Buffer[5] = KMem.WX[0]; TX_Buffer[6] = KMem.WX[1]>>8; TX_Buffer[7] = KMem.WX[1]; crc_value=RadioComputeCRC(TX_Buffer,len1,CRC_TYPE_IBM);//计算得出要发送数据包CRC值 TX_Buffer[len1]=crc_value>>8; TX_Buffer[len1+1]=crc_value; Radio.Send( TX_Buffer, len1+2); } void OnTxDone( void ) { Radio.Standby(); Radio.Rx( RX_TIMEOUT_VALUE ); //进入接收 LL_GPIO_TogglePin(GPIOC,LL_GPIO_PIN_14); int us2=GetuS(); KMem.ScanTimeuS=us2-KMem.LastScanTime; KMem.LastScanTime = us2; if (KMem.ScanTimeuS < KMem.MinScanTimeuS) {KMem.MinScanTimeuS = KMem.ScanTimeuS;} if (KMem.ScanTimeuS > KMem.MaxScanTimeuS) {KMem.MaxScanTimeuS = KMem.ScanTimeuS;} } 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; KMem.DT[40]=rssi; //Radio.Rssi(MODEM_FSK);; KMem.DT[41]=snr; KMem.DT[42]++; Radio.Standby(); if(RadioEnableMaster) { if(memcmp(RX_Buffer,PongMsg,4)==0) { LedToggle();//LED闪烁 KMem.WX[1]=(RX_Buffer[4]<<8) + RX_Buffer[5]; KMem.WX[2]=(RX_Buffer[6]<<8) + RX_Buffer[7]; } SendPingMsg(); } else { if(memcmp(RX_Buffer,PingMsg,4)==0) { LedToggle();//LED闪烁 SendPongMsg(size-2); KMem.WX[1]=(RX_Buffer[4]<<8) + RX_Buffer[5]; KMem.WX[2]=(RX_Buffer[6]<<8) + RX_Buffer[7]; // KMem.WY[0]=(RX_Buffer[4]<<8) + RX_Buffer[5]; // KMem.WY[1]=(RX_Buffer[6]<<8) + RX_Buffer[7]; } else { Radio.Rx( RX_TIMEOUT_VALUE ); } } } void OnTxTimeout( void ) { } void OnRxTimeout( void ) { Radio.Standby(); KMem.DT[43]++; KMem.ErrStat=200; if(RadioEnableMaster) { SendPingMsg(); } else { Radio.Rx( RX_TIMEOUT_VALUE ); } } void OnRxError( void ) { Radio.Standby(); KMem.DT[44]++; if(RadioEnableMaster) { SendPingMsg(); } else { Radio.Rx( RX_TIMEOUT_VALUE ); } }