321 lines
7.7 KiB
C
321 lines
7.7 KiB
C
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#include "./inc/user.h"
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#include "./inc/lora.h"
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#include "ql_api_osi.h"
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#include "ql_log.h"
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#define LOGI(msg, ...) QL_LOG(QL_LOG_LEVEL_INFO, "lora", msg, ##__VA_ARGS__)
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extern unsigned char * write_buf;
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extern unsigned char * read_buf;
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uint16_t syncword;
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uint8_t PacketParams[6] = {0};
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uint16_t lora_get_syncword(void)
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{
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if(lora_read_register(LORA_SYNCWORD,2)){
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uint16_t syncword = read_buf[4] << 8 | read_buf[5];
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return syncword;
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}
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return 65535;
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}
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void lora_set_standby(uint8_t data)
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{
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lora_write_cmd(0x80,&data,1);
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}
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void lora_set_RfSwitchCtrl(uint8_t enable)
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{
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lora_write_cmd(LORA_SET_RFSWITCHMODE,&enable,1);
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}
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void lora_set_calibrate(uint8_t param)
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{
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lora_write_cmd(LORA_SET_CALIBRATE,¶m,1);
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}
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void lora_set_regulator(uint8_t param)
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{
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lora_write_cmd(LORA_SET_REGULATORMODE,¶m,1);
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}
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void lora_set_bufferBaseAddress(uint8_t tx_base_add,uint8_t rx_base_add)
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{
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uint8_t data[2] = {tx_base_add,rx_base_add};
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lora_write_cmd(LORA_SET_BUFFERBASEADDRESS,data,2);
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}
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void lora_set_PaConfig(uint8_t paDutyCycle,uint8_t hpMax,uint8_t deviceSel,uint8_t paLut)
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{
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uint8_t data[4] = {paDutyCycle,hpMax,deviceSel,paLut};
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lora_write_cmd(LORA_SET_PACONFIG,data,4);
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}
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void lora_set_OverCurrentProtection(float max_current)
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{
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if((max_current >= 0.0)&&(max_current <= 140.0)){
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uint8_t data = (uint8_t)(max_current*2/5);
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lora_wrtie_register(LORA_SET_OCP,&data,1);
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}
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}
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void lora_set_TX(uint8_t power,uint8_t rampTime)
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{
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if(power > 22) power = 22;
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if(power < -3) power = -3;
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uint8_t data[2] = {power,rampTime};
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lora_write_cmd(LORA_SET_TX_PARAMS,data,2);
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}
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void lora_set_calibrateImage(uint32_t freq)
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{
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uint8_t calFreq[2] = {0,0};
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if( freq > 900000000 ){
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calFreq[0] = 0xE1;
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calFreq[1] = 0xE9;
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}else if( freq > 850000000 ){
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calFreq[0] = 0xD7;
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calFreq[1] = 0xDB;
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}else if( freq > 770000000 ){
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calFreq[0] = 0xC1;
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calFreq[1] = 0xC5;
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}else if( freq > 460000000 ){
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calFreq[0] = 0x75;
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calFreq[1] = 0x81;
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}else if( freq > 425000000 ){
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calFreq[0] = 0x6B;
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calFreq[1] = 0x6F;
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}
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lora_write_cmd(LORA_SET_CALIBRATEIMAGE,calFreq,2);
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}
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void lora_set_RfFreq(uint32_t freq)
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{
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lora_set_calibrateImage(freq);
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uint32_t frequence = (uint32_t)((double)freq/(double)FREQ_STEP);
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uint8_t data[4] = {0,0,0,0};
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data[0] = (uint8_t)((frequence>>24)&0xff);
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data[1] = (uint8_t)((frequence>>16)&0xff);
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data[2] = (uint8_t)((frequence>>8)&0xff);
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data[3] = (uint8_t)(frequence&0xff);
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lora_write_cmd(LORA_SET_RFFREQ,data,4);
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}
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void lora_stop_rxTimerRonpreamble(uint8_t enable)
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{
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//取反
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enable = !enable;
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lora_write_cmd(LORA_SET_STOPRXTIMERONPREAMBLE,&enable,1);
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}
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void lora_set_symbNumTimeout(uint8_t symbNum)
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{
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lora_write_cmd(LORA_SET_SYMBNUMTIMEOUT,&symbNum,1);
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}
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void lora_set_packetType(uint8_t type)
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{
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lora_write_cmd(LORA_SET_PACKETTYPE,&type,1);
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}
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void lora_set_modulationParams(uint8_t spreadingFactor,uint8_t bandwidth,uint8_t codingRate,uint8_t lowDataRateOptimize)
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{
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uint8_t data[4] = {spreadingFactor,bandwidth,codingRate,lowDataRateOptimize};
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lora_write_cmd(LORA_SET_MODULATIONPARAMS,data,4);
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}
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uint8_t* lora_get_packetParams(uint16_t preambleLength,uint8_t payloadLen,uint8_t crcOn,uint8_t invertIrq)
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{
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PacketParams[0] = (preambleLength >> 8)&0xFF;
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PacketParams[1] = preambleLength;
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if(payloadLen){
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PacketParams[2] = 0x01;
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PacketParams[3] = payloadLen;
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}else{
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PacketParams[2] = 0x00;
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PacketParams[3] = 0xFF;
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}
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if(crcOn){
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PacketParams[4] = 0x01; //inverted
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}else{
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PacketParams[4] = 0x00; //standard
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}
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if(invertIrq){
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PacketParams[5] = 0x01;
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}else{
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PacketParams[5] = 0x00;
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}
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return PacketParams;
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}
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void lora_set_IQ_Polarity(uint8_t iqConfig)
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{
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//获取当前寄存器数据
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lora_read_register(0x0736,1);
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uint8_t iqConfigCurrent = read_buf[0];
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if(iqConfig == 0x01){//inverted
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iqConfigCurrent &= 0xFB;
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}else{
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iqConfigCurrent |= 0x04; //standard
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}
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lora_wrtie_register(0x0736,&iqConfigCurrent,1);
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}
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void lora_set_packetParams(uint8_t * packetParams)
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{
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lora_write_cmd(LORA_SET_PACKETPARAMS,packetParams,6);
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}
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void lora_set_DioRiqConfig(uint16_t irqMask, uint16_t dio1, uint16_t dio2, uint16_t dio3)
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{
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uint8_t buf[8] = {0};
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buf[0] = (uint8_t)((irqMask >>8)&0x00FF);
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buf[1] = (uint8_t)(irqMask & 0x00FF);
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buf[2] = (uint8_t)((dio1 >>8)&0x00FF);
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buf[3] = (uint8_t)(dio1 & 0x00FF);
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buf[4] = (uint8_t)((dio2 >>8)&0x00FF);
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buf[5] = (uint8_t)(dio2 & 0x00FF);
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buf[6] = (uint8_t)((dio3 >>8)&0x00FF);
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buf[7] = (uint8_t)(dio3 & 0x00FF);
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lora_write_cmd(LORA_SET_DIO_IRQ_CONFIG,buf,8);
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}
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uint8_t lora_get_status(void)
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{
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lora_read_cmd(LORA_GET_STATUS,1);
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return (uint8_t)read_buf[0];
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}
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int lora_set_Rx(uint32_t timeout)
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{
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lora_set_standby(0x00);
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uint8_t buf[3] = {0};
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buf[0] = (uint8_t)((timeout >> 16) & 0xFF);
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buf[1] = (uint8_t)((timeout >> 8) & 0xFF);
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buf[2] = (uint8_t)(timeout & 0xFF);
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lora_write_cmd(LORA_SET_RX,buf,3);
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for(int i = 0; i < 10; i++){
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if((lora_get_status()&0x70) == 0x50){ //01110000,
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return 1; //01010000 所以状态为0x20
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}
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ql_delay_us(1000);
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}
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return 0;
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}
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uint16_t lora_get_irq_status(void)
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{
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lora_read_cmd(LORA_GET_IRQSTATUS,3);
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return (uint16_t)((read_buf[2] << 8) | read_buf[3]);
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}
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void lora_clear_irq_status(uint16_t irq_status)
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{
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uint8_t buf[2] = {0};
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buf[0] = (uint8_t)((irq_status >>8)&0x00FF);
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buf[1] = (uint8_t)(irq_status & 0x00FF);
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lora_write_cmd(LORA_CLEAR_IRQSTATUS,buf,2);
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}
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////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
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int lora_init(void)
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{
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transfer_buf_init();
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int err = lora_gpio_init();
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if(err != 1){
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LOGI("lora_gpio_init fail,err = %d\n",err);
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return 0;
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}
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err = lora_spi_init();
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if(err != 1){
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LOGI("lora_spi_init fail,err = %d\n",err);
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return 0;
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}
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lora_reset();
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return 1;
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}
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int lora_start(void)
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{
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/*获取同步字并判断*/
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syncword = lora_get_syncword();
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if(syncword != LORA_SYNCWORD_1 && syncword != LORA_SYNCWORD_2){
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LOGI("syncword 0x%02X is error\n",syncword);
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return 0;
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}
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/*设置standby为RC模式*/
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lora_set_standby(LORA_STANDBY_RC);
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/*启用RF开关控制*/
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lora_set_RfSwitchCtrl(1);
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/*设置射频校准*/
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lora_set_calibrate(0b01111111);
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/*设置电源为DCDC模式*/
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lora_set_regulator(REGULATOR_DCDC);
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/*设置缓冲区基地址*/
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lora_set_bufferBaseAddress(0,0);
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/*配置功率放大器*/
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lora_set_PaConfig(0x04,0x07,0x00,0x01); //+22dBM
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/*设置过流保护*/
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lora_set_OverCurrentProtection(60.0);
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/*设置发送参数*/
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lora_set_TX(20,0x04);//默认20发送功率，渐变200us
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/*设置射频频率*/
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lora_set_RfFreq(RF_FREQ);
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return 1;
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}
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int lora_radioConfig(void)
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{
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/*不禁用接收定时器*/
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lora_stop_rxTimerRonpreamble(0);
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/*设置超时参数*/
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lora_set_symbNumTimeout(0);
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/*设置数据包类型*/
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lora_set_packetType(0x01);//lora模式
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/*设置射频调制参数*/
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lora_set_modulationParams(7,4,1,0);
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/*配置数据包参数*/
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uint8_t *packetParams = lora_get_packetParams(8,0,1,0);
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/*设置射频接收IQ极性*/
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lora_set_IQ_Polarity(packetParams[5]);
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/*设置数据包参数*/
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lora_set_packetParams(packetParams);
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/*配置数字输入输出中断*/
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lora_set_DioRiqConfig(1023,2,0,0);//0b1111111111,0b0000000010
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/*设置接收模式为RX连续模式*/
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if(lora_set_Rx(0xFFFFFF) == 0) return 0;
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return 1;
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} |