/**
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******************************************************************************
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* @file : KWireLess.c
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* @brief : K-WireLess Protocol program body
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******************************************************************************
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*/
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#include "KWireLess.h"
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#include "functions.h"
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#include "string.h"
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#include "PLCFunctions.h"
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#include "stm32f0xx_hal.h"
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/**************************************************************************************************************************************
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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
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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
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***************************************************************************************************************************************/
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//#define USE_MODEM_LORA
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#define USE_MODEM_FSK
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#define REGION_CN779
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#if defined( REGION_AS923 )
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#define RF_FREQUENCY 923000000 // Hz
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#elif defined( REGION_AU915 )
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#define RF_FREQUENCY 915000000 // Hz
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#elif defined( REGION_CN779 )
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#define RF_FREQUENCY 433000000 // Hz
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#elif defined( REGION_EU868 )
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#define RF_FREQUENCY 868000000 // Hz
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#elif defined( REGION_KR920 )
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#define RF_FREQUENCY 920000000 // Hz
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#elif defined( REGION_IN865 )
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#define RF_FREQUENCY 865000000 // Hz
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#elif defined( REGION_US915 )
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#define RF_FREQUENCY 915000000 // Hz
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#elif defined( REGION_US915_HYBRID )
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#define RF_FREQUENCY 915000000 // Hz
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#else
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#error "Please define a frequency band in the compiler options."
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#endif
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#define nChannelBandwidth 100000 // Hz
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#define TX_OUTPUT_POWER 22 // 22 dBm
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extern bool IrqFired;
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bool RadioEnableMaster=true;//主从选择
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uint32_t nRadioChannel=0;
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uint16_t crc_value;
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/*!
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* Radio events function pointer
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*/
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static RadioEvents_t RadioEvents;
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#if defined( USE_MODEM_LORA )
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#define LORA_BANDWIDTH 0 // [0: 125 kHz,
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// 1: 250 kHz,
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// 2: 500 kHz,
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// 3: Reserved]
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#define LORA_SPREADING_FACTOR 9 // [SF7..SF12]
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#define LORA_CODINGRATE 4 // [1: 4/5,
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// 2: 4/6,
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// 3: 4/7,
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// 4: 4/8]
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#define LORA_PREAMBLE_LENGTH 8 // Same for Tx and Rx
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#define LORA_SYMBOL_TIMEOUT 0 // Symbols
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#define LORA_FIX_LENGTH_PAYLOAD_ON false
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#define LORA_IQ_INVERSION_ON false
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#elif defined( USE_MODEM_FSK )
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#define FSK_FDEV 12e3 // Hz
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#define FSK_DATARATE 19.2e3 // bps
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#define FSK_BANDWIDTH 50e3 // Hz >> DSB in sx126x
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#define FSK_AFC_BANDWIDTH 200e3 // Hz
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#define FSK_PREAMBLE_LENGTH 5 // Same for Tx and Rx
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#define FSK_FIX_LENGTH_PAYLOAD_ON false
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#else
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#error "Please define a modem in the compiler options."
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#endif
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typedef enum
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{
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LOWPOWER,
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RX,
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RX_TIMEOUT,
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RX_ERROR,
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TX,
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TX_TIMEOUT,
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}States_t;
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#define RX_TIMEOUT_VALUE 100
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#define BUFFER_SIZE 32 // Define the payload size here
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const uint8_t PingMsg[] = "PING";
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const uint8_t PongMsg[] = "PONG";
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uint16_t BufferSize = BUFFER_SIZE;
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uint8_t TX_Buffer[BUFFER_SIZE];
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uint8_t RX_Buffer[BUFFER_SIZE];
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States_t State = LOWPOWER;
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int8_t RssiValue = 0;
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int8_t SnrValue = 0;
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//KWStates KW_State=KW_PON;
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void LedToggle(void)
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{
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// GPIO_WriteBit( LED1_PORT, LED1_PIN,Bit_RESET);//LED闪烁
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// HAL_Delay_nMS(10);
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// GPIO_WriteBit( LED1_PORT, LED1_PIN,Bit_SET);
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LL_GPIO_TogglePin(GPIOC,LL_GPIO_PIN_13);
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}
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int KWireLessInit(bool bRadioEnableMaster, uint32_t nChn)
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{
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RadioEnableMaster = bRadioEnableMaster;
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// Radio initialization
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RadioEvents.TxDone = OnTxDone;
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RadioEvents.RxDone = OnRxDone;
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RadioEvents.TxTimeout = OnTxTimeout;
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RadioEvents.RxTimeout = OnRxTimeout;
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RadioEvents.RxError = OnRxError;
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Radio.Init( &RadioEvents );
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nRadioChannel = nChn;
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Radio.SetChannel( RF_FREQUENCY + nRadioChannel * nChannelBandwidth );
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// Radio.WriteBuffer(0x06C0,data,2);
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// Radio.ReadBuffer(0x06C0,test,2);
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#if defined( USE_MODEM_LORA )
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Radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
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LORA_SPREADING_FACTOR, LORA_CODINGRATE,
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LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
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true, 0, 0, LORA_IQ_INVERSION_ON, 3000 );
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Radio.SetRxConfig( MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,
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LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH,
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LORA_SYMBOL_TIMEOUT, LORA_FIX_LENGTH_PAYLOAD_ON,
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0, true, 0, 0, LORA_IQ_INVERSION_ON, false );
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#elif defined( USE_MODEM_FSK )
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Radio.SetTxConfig( MODEM_FSK, TX_OUTPUT_POWER, FSK_FDEV, 0,
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FSK_DATARATE, 0,
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FSK_PREAMBLE_LENGTH, FSK_FIX_LENGTH_PAYLOAD_ON,
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true, 0, 0, 0, 3000 );
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Radio.SetRxConfig( MODEM_FSK, FSK_BANDWIDTH, FSK_DATARATE,
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0, FSK_AFC_BANDWIDTH, FSK_PREAMBLE_LENGTH,
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0, FSK_FIX_LENGTH_PAYLOAD_ON, 0, true,
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0, 0,false, false );
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#else
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#error "Please define a frequency band in the compiler options."
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#endif
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SX126xSetRxTxFallbackMode(0x40); // 0x40-> FS 0x30 -> SD_XOSC 0x20 -> SD_RC
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return 0;
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}
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int KWireLessStart(void)
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{
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if(RadioEnableMaster)
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{
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SendPingMsg();
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/*
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TX_Buffer[0] = 'P';
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TX_Buffer[1] = 'I';
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TX_Buffer[2] = 'N';
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TX_Buffer[3] = 'G';
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TX_Buffer[4] = 'G';
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TX_Buffer[5] = 'G';
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TX_Buffer[6] = 'G';
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TX_Buffer[7] = 'G';
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crc_value=RadioComputeCRC(TX_Buffer,8,CRC_TYPE_IBM);//计算得出要发送数据包CRC值
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TX_Buffer[8]=crc_value>>8;
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TX_Buffer[9]=crc_value;
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Radio.Send( TX_Buffer, 10);
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*/
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}
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else
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{
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Radio.Rx( RX_TIMEOUT_VALUE );
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}
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// while( 1 )
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// {
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// Radio.IrqProcess( ); // Process Radio IRQ
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// }
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return 0;
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}
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void SendPingMsg()
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{
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int len1=12;
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TX_Buffer[0] = 'P';
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TX_Buffer[1] = 'I';
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TX_Buffer[2] = 'N';
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TX_Buffer[3] = 'G';
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TX_Buffer[4] = KMem.WY[1]>>8;
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TX_Buffer[5] = KMem.WY[1];
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TX_Buffer[6] = KMem.WY[2]>>8;
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TX_Buffer[7] = KMem.WY[2];
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crc_value=RadioComputeCRC(TX_Buffer,len1,CRC_TYPE_IBM);//计算得出要发送数据包CRC值
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TX_Buffer[len1]=crc_value>>8;
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TX_Buffer[len1+1]=crc_value;
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Radio.Send( TX_Buffer, len1+2);
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}
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void SendPongMsg(int len1)
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{
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TX_Buffer[0] = 'P';
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TX_Buffer[1] = 'O';
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TX_Buffer[2] = 'N';
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TX_Buffer[3] = 'G';
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TX_Buffer[4] = KMem.WX[0]>>8;
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TX_Buffer[5] = KMem.WX[0];
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TX_Buffer[6] = KMem.WX[1]>>8;
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TX_Buffer[7] = KMem.WX[1];
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crc_value=RadioComputeCRC(TX_Buffer,len1,CRC_TYPE_IBM);//计算得出要发送数据包CRC值
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TX_Buffer[len1]=crc_value>>8;
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TX_Buffer[len1+1]=crc_value;
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Radio.Send( TX_Buffer, len1+2);
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}
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void OnTxDone( void )
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{
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Radio.Standby();
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Radio.Rx( RX_TIMEOUT_VALUE ); //进入接收
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LL_GPIO_TogglePin(GPIOC,LL_GPIO_PIN_14);
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int us2=GetuS();
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KMem.ScanTimeuS=us2-KMem.LastScanTime;
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KMem.LastScanTime = us2;
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if (KMem.ScanTimeuS < KMem.MinScanTimeuS) {KMem.MinScanTimeuS = KMem.ScanTimeuS;}
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if (KMem.ScanTimeuS > KMem.MaxScanTimeuS) {KMem.MaxScanTimeuS = KMem.ScanTimeuS;}
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}
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void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr )
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{
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BufferSize = size;
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memcpy( RX_Buffer, payload, BufferSize );
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RssiValue = rssi;
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SnrValue = snr;
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KMem.WDT[40]=rssi; //Radio.Rssi(MODEM_FSK);;
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KMem.WDT[41]=snr;
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KMem.WDT[42]++;
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Radio.Standby();
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if(RadioEnableMaster)
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{
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if(memcmp(RX_Buffer,PongMsg,4)==0)
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{
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LedToggle();//LED闪烁
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KMem.WX[1]=(RX_Buffer[4]<<8) + RX_Buffer[5];
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KMem.WX[2]=(RX_Buffer[6]<<8) + RX_Buffer[7];
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}
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SendPingMsg();
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}
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else
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{
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if(memcmp(RX_Buffer,PingMsg,4)==0)
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{
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LedToggle();//LED闪烁
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SendPongMsg(size-2);
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KMem.WX[1]=(RX_Buffer[4]<<8) + RX_Buffer[5];
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KMem.WX[2]=(RX_Buffer[6]<<8) + RX_Buffer[7];
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// KMem.WY[0]=(RX_Buffer[4]<<8) + RX_Buffer[5];
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// KMem.WY[1]=(RX_Buffer[6]<<8) + RX_Buffer[7];
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}
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else
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{
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Radio.Rx( RX_TIMEOUT_VALUE );
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}
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}
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}
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void OnTxTimeout( void )
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{
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KMem.WDT[43]++;
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}
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void OnRxTimeout( void )
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{
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Radio.Standby();
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KMem.WDT[44]++;
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KMem.ErrStat=200;
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if(RadioEnableMaster)
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{
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SendPingMsg();
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}
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else
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{
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Radio.Rx( RX_TIMEOUT_VALUE );
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}
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}
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void OnRxError( void )
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{
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Radio.Standby();
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KMem.WDT[45]++;
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if(RadioEnableMaster)
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{
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SendPingMsg();
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}
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else
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{
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Radio.Rx( RX_TIMEOUT_VALUE );
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}
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}
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