Double-key-test-Pro-.zip_KEY TEST PRO

/******************************************************************************/ /* -- 深圳市安信可科技有限公司 -- */ /* // 文件名： // 说明： // 编写人员：wuzhibiao // 编写日期：2013年3月15日 // 程序维护： // 维护记录： // // */ // 免责声明：该程序仅用于学习与交流 // (c) Anxinke Corporation. All rights reserved. /******************************************************************************/ #include "typedef.h" #include "gpio.h" #include "nrf24l01p.h" #include "delay.h" uchar const TX_ADDRESS[TX_ADR_WIDTH] = {0x34,0x43,0x10,0x10,0x01}; // Define a static TX address uchar const RX_ADDRESS[TX_ADR_WIDTH] = {0x34,0x43,0x10,0x10,0x01}; uchar flag; /**************************************************/ /************************************************** Function: init_io(); Description: flash led one time,chip enable(ready to TX or RX Mode), Spi disable,Spi clock line init high /**************************************************/ void init_nrf24l01_io(void) { CE=0; // chip enable CSN=1; // Spi disable SCK=0; // Spi clock line init high } /************************************************** Function: SPI_RW(); Description: Writes one byte to nRF24L01, and return the byte read from nRF24L01 during write, according to SPI protocol /**************************************************/ uchar SPI_RW(uchar byte) { uchar bit_ctr; for(bit_ctr=0;bit_ctr<8;bit_ctr++) // output 8-bit { MOSI = (byte & 0x80); // output 'byte', MSB to MOSI byte = (byte << 1); // shift next bit into MSB.. SCK = 1; // Set SCK high.. MISO=1; byte |= MISO; // capture current MISO bit SCK = 0; // ..then set SCK low again } return(byte); // return read byte } /**************************************************/ /************************************************** Function: SPI_RW_Reg(); Description: Writes value 'value' to register 'reg' /**************************************************/ uchar SPI_RW_Reg(BYTE reg, BYTE value) { uchar status; CSN = 0; // CSN low, init SPI transaction status = SPI_RW(reg); // select register SPI_RW(value); // ..and write value to it.. CSN = 1; // CSN high again return(status); // return nRF24L01 status byte } /**************************************************/ /************************************************** Function: SPI_Read(); Description: Read one byte from nRF24L01 register, 'reg' /**************************************************/ BYTE SPI_Read(BYTE reg) { BYTE reg_val; CSN = 0; // CSN low, initialize SPI communication... SPI_RW(reg); // Select register to read from.. reg_val = SPI_RW(0); // ..then read registervalue CSN = 1; // CSN high, terminate SPI communication return(reg_val); // return register value } /**************************************************/ /************************************************** Function: SPI_Read_Buf(); Description: Reads 'bytes' #of bytes from register 'reg' Typically used to read RX payload, Rx/Tx address /**************************************************/ uchar SPI_Read_Buf(BYTE reg, BYTE *pBuf, BYTE bytes) { uchar status,byte_ctr; CSN = 0; // Set CSN low, init SPI tranaction status = SPI_RW(reg); // Select register to write to and read status byte for(byte_ctr=0;byte_ctr<bytes;byte_ctr++) pBuf[byte_ctr] = SPI_RW(0); // Perform SPI_RW to read byte from nRF24L01 CSN = 1; // Set CSN high again return(status); // return nRF24L01 status byte } /**************************************************/ /************************************************** Function: SPI_Write_Buf(); Description: Writes contents of buffer '*pBuf' to nRF24L01 Typically used to write TX payload, Rx/Tx address /**************************************************/ uchar SPI_Write_Buf(BYTE reg, BYTE *pBuf, BYTE bytes) { uchar status,byte_ctr; CSN = 0; // Set CSN low, init SPI tranaction status = SPI_RW(reg); // Select register to write to and read status byte for(byte_ctr=0; byte_ctr<bytes; byte_ctr++) // then write all byte in buffer(*pBuf) SPI_RW(*pBuf++); CSN = 1; // Set CSN high again return(status); // return nRF24L01 status byte } /**************************************************/ /************************************************** Function: RX_Mode(); Description: This function initializes one nRF24L01 device to RX Mode, set RX address, writes RX payload width, select RF channel, datarate & LNA HCURR. After init, CE is toggled high, which means that this device is now ready to receive a datapacket. /**************************************************/ void power_off() { CE=0; SPI_RW_Reg(WRITE_REG + CONFIG, 0x0D); CE=1; _delay_us(20); } /**************************************************/ /************************************************** Function: TX_Mode(); Description: This function initializes one nRF24L01 device to TX mode, set TX address, set RX address for auto.ack, fill TX payload, select RF channel, datarate & TX pwr. PWR_UP is set, CRC(2 bytes) is enabled, & PRIM:TX. ToDo: One high pulse(>10us) on CE will now send this packet and expext an acknowledgment from the RX device. /**************************************************/ void receive_mode_init(void) { CE=0; SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, RX_ADDRESS, TX_ADR_WIDTH); // Use the same address on the RX device as the TX device SPI_RW_Reg(WRITE_REG + EN_AA, 0x01); // Enable Auto.Ack:Pipe0 SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01); // Enable Pipe0 SPI_RW_Reg(WRITE_REG + RF_CH, 40); // Select RF channel 40 SPI_RW_Reg(WRITE_REG + RX_PW_P0, TX_PLOAD_WIDTH); // Select same RX payload width as TX Payload width SPI_RW_Reg(WRITE_REG + RF_SETUP, 0x27); // TX_PWR:0dBm, Datarate:2Mbps, LNA:HCURR SPI_RW_Reg(WRITE_REG + CONFIG, 0x0f); // Set PWR_UP bit, enable CRC(2 bytes) & Prim:RX. RX_DR enabled.. SPI_RW_Reg(WRITE_REG+STATUS,0xff); // 清除所有中断标志 CE = 1; // Set CE pin high to enable RX device } void clearTXFIFO(void) { CSN = 0; SPI_RW(FLUSH_TX); _delay_us(10); CSN = 1; } uchar send_data(uchar *buf) { unsigned int uiNum; power_off(); CE=0; SPI_Write_Buf(WRITE_REG + TX_ADDR, TX_ADDRESS, TX_ADR_WIDTH); // Writes TX_Address to nRF24L01 SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_WIDTH); // RX_Addr0 same as TX_Adr for Auto.Ack SPI_Write_Buf(WR_TX_PLOAD, buf, TX_PLOAD_WIDTH); // Writes data to TX payload SPI_RW_Reg(WRITE_REG + EN_AA, 0x01); // Enable Auto.Ack:Pipe0 SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01); // Enable Pipe0 SPI_RW_Reg(WRITE_REG + SETUP_RETR, 0x1a); // 500us + 86us, 10 retrans... SPI_RW_Reg(WRITE_REG + RF_CH, 40); // Select RF channel 40 SPI_RW_Reg(WRITE_REG + RF_SETUP, 0x27); // TX_PWR:0dBm, Datarate:2Mbps, LNA:HCURR SPI_RW_Reg(WRITE_REG + CONFIG, 0x0e); // Set PWR_UP bit, enable CRC(2 bytes) & Prim:TX. MAX_RT & TX_DS enabled.. IRQ = 1; CE=1; _delay_us(500); CE=0; uiNum = 0; whi