cc2420+atmega128基础zigbee无线通信实验-网络Sniffer节点实验

//----------------------------------------------------// //-------Institute Of Computing Technology-----------// //------------Chinese Academic Science---------------// //-----中国科学院计算技术研究所先进测试技术实验室-----// //----------------------------------------------------// /** * www.wsn.net.cn * @copyright:nbicc_lpp * @data:2006.11.22 * @version:0.0.1 * @updata:$ * */ #include "cc2420.h" //send //------------------------------HPL------------------------------------------------------------------- inline uint8_t cc2420_pin_init(void) { cc2420_bramspi = TRUE; OS_MAKE_MISO_INPUT(); OS_MAKE_MOSI_OUTPUT(); OS_MAKE_SPI_SCK_OUTPUT(); OS_MAKE_CC_RSTN_OUTPUT(); OS_MAKE_CC_VREN_OUTPUT(); OS_MAKE_CC_CS_OUTPUT(); OS_MAKE_CC_FIFOP1_INPUT(); OS_MAKE_CC_CCA_INPUT(); OS_MAKE_CC_SFD_INPUT(); OS_MAKE_CC_FIFO_INPUT(); return SUCCESS; } inline static uint8_t SPI_init(void) { { os_atomic_t _nesc_atomic = os_atomic_start(); { OS_MAKE_SPI_SCK_OUTPUT(); OS_MAKE_MISO_INPUT(); OS_MAKE_MOSI_OUTPUT(); SPSR |= 1 << 0;//SPI STATE 倍速SPI选择 SPCR |= 1 << 4; //选择SPI主机工作模式 SPCR &= ~(1 << 3); //CPOL位为0，sck在闲置时是低电平 SPCR &= ~(1 << 2); //CPHA位为0，上升延数据锁存，下降延数据建立 SPCR &= ~(1 << 1); SPCR &= ~(1 << 0); SPCR |= 1 << 6; //允许SPI接口 } os_atomic_end(_nesc_atomic); } return SUCCESS; } inline uint8_t cc2420_reginit(void) { // Set default parameters cc2420_currentparameters[CP_MAIN] = 0xf800; cc2420_currentparameters[CP_MDMCTRL0] = ((0 << cc2420_MDMCTRL0_PANCRD) |(0 << cc2420_MDMCTRL0_ADRDECODE) | //is not coordinator disable auto adr_decode (2 << cc2420_MDMCTRL0_CCAHIST) | (3 << cc2420_MDMCTRL0_CCAMODE) | //cca mode is 3 (1 << cc2420_MDMCTRL0_AUTOCRC) | (2 << cc2420_MDMCTRL0_PREAMBL)); //auto crc is set cc2420_currentparameters[CP_MDMCTRL1] = 20 << cc2420_MDMCTRL1_CORRTHRESH;//default cc2420_currentparameters[CP_RSSI] = 0xE080;//default cc2420_currentparameters[CP_SYNCWORD] = 0xA70F; cc2420_currentparameters[CP_TXCTRL] = ((1 << cc2420_TXCTRL_BUFCUR) | //default is 2-1.16ma,now is 980ua (1 << cc2420_TXCTRL_TURNARND) | (3 << cc2420_TXCTRL_PACUR) | //default ,turnaround time is 12 symbols (1 << cc2420_TXCTRL_PADIFF) | (0x1f << cc2420_TXCTRL_PAPWR));//default cc2420_currentparameters[CP_RXCTRL0] = ((1 << cc2420_RXCTRL0_BUFCUR) | //default is 980ua (2 << cc2420_RXCTRL0_MLNAG) | (3 << cc2420_RXCTRL0_LOLNAG) | (2 << cc2420_RXCTRL0_HICUR) | (1 << cc2420_RXCTRL0_MCUR) | (1 << cc2420_RXCTRL0_LOCUR));//default cc2420_currentparameters[CP_RXCTRL1] = ((1 << cc2420_RXCTRL1_LOLOGAIN) | (1 << cc2420_RXCTRL1_HIHGM ) |//default (1 << cc2420_RXCTRL1_LNACAP) | (1 << cc2420_RXCTRL1_RMIXT ) | (1 << cc2420_RXCTRL1_RMIXV) | (2 << cc2420_RXCTRL1_RMIXCUR ) );//default cc2420_currentparameters[CP_FSCTRL] = ((1 << cc2420_FSCTRL_LOCK) | ((357+5*(cc2420_DEF_CHANNEL-11)) << cc2420_FSCTRL_FREQ));//2405mhz cc2420_currentparameters[CP_SECCTRL0] = ((0 << cc2420_SECCTRL0_PROTECT) |(1 << cc2420_SECCTRL0_CBCHEAD) | (1 << cc2420_SECCTRL0_SAKEYSEL) | (1 << cc2420_SECCTRL0_TXKEYSEL) | (1 << cc2420_SECCTRL0_SECM ) );//disable the security cc2420_currentparameters[CP_SECCTRL1] = 0; cc2420_currentparameters[CP_BATTMON] = 0;//battery monitor is disable //cc2420_currentparameters[CP_IOCFG0] = (((TOSH_DATA_LENGTH + 2) << cc2420_IOCFG0_FIFOTHR) | (1 <<cc2420_IOCFG0_FIFOPPOL)) ; //set fifop threshold to greater than size of msg, fifop goes active at end of msg cc2420_currentparameters[CP_IOCFG0] = (((127) << cc2420_IOCFG0_FIFOTHR) | (1 <<cc2420_IOCFG0_FIFOPPOL)) ;//polarity is inverted as compareed to the specification cc2420_currentparameters[CP_IOCFG1] = 0; return SUCCESS; } //---------------------------------------------------------设置cc2420寄存器的值 bool cc2420_setreg(void) { uint16_t data; cc2420_writereg(cc2420_MAIN, cc2420_currentparameters[CP_MAIN]); cc2420_writereg(cc2420_MDMCTRL0, cc2420_currentparameters[CP_MDMCTRL0]); data = cc2420_readreg(cc2420_MDMCTRL0); if (data != cc2420_currentparameters[CP_MDMCTRL0]) { printf("reginit is unsuccess\n"); return FALSE; } cc2420_writereg(cc2420_MDMCTRL1, cc2420_currentparameters[CP_MDMCTRL1]); cc2420_writereg(cc2420_RSSI, cc2420_currentparameters[CP_RSSI]); cc2420_writereg(cc2420_SYNCWORD, cc2420_currentparameters[CP_SYNCWORD]); cc2420_writereg(cc2420_TXCTRL, cc2420_currentparameters[CP_TXCTRL]); cc2420_writereg(cc2420_RXCTRL0, cc2420_currentparameters[CP_RXCTRL0]); cc2420_writereg(cc2420_RXCTRL1, cc2420_currentparameters[CP_RXCTRL1]); cc2420_writereg(cc2420_FSCTRL, cc2420_currentparameters[CP_FSCTRL]); cc2420_writereg(cc2420_SECCTRL0, cc2420_currentparameters[CP_SECCTRL0]); cc2420_writereg(cc2420_SECCTRL1, cc2420_currentparameters[CP_SECCTRL1]); cc2420_writereg(cc2420_IOCFG0, cc2420_currentparameters[CP_IOCFG0]); cc2420_writereg(cc2420_IOCFG1, cc2420_currentparameters[CP_IOCFG1]); cc2420_sendcmd(cc2420_SFLUSHTX); cc2420_sendcmd(cc2420_SFLUSHRX); printf("reginit is success\n"); return TRUE; } //----------------------------------------------------------------FIFOP中断处理中转 inline uint8_t cc2420_fifopintr(void){ if (!OS_READ_CC_FIFO_PIN()) { //printf("收到一个包,但芯片缓存 溢出\n"); cc2420_readreg(0x3F); rfpackernum=0; cc2420_sendcmd(0x08); cc2420_sendcmd(0x08); return SUCCESS; } rfpackernum++; // printf("收到一个包,启动接收任务\n"); if (cc2420_rxbufuse>1) { //printf("没有可用的ram空间，等待中!"); return SUCCESS; } else { cc2420_rxbufuse++; OS_post(&cc2420_readrxfifo); } return SUCCESS; } //---------------------------------------------------------打开对fifop的中断支持,下降延触发 inline uint8_t cc2420_enablefifop(void) { EICRB &= ~(1 << 4); EICRB |= 1 << 5; EIMSK |= 1 << 6; return SUCCESS; } //---------------------------------------------------------向cc2420发送一个命令 uint8_t cc2420_sendcmd(uint8_t addr) { uint8_t status; { os_atomic_t _nesc_atomic = os_atomic_start(); { OS_CLR_CC_CS_PIN(); SPDR = addr;//这是单片机内部spi数据寄存器的地址 while (!(SPSR & 0x80)) {//这是单片机内部spi状态寄存器的地址 } ; status = SPDR; } os_atomic_end(_nesc_atomic); } OS_SET_CC_CS_PIN(); return status; } //---------------------------------------------------------向cc2420指定的地址写数据 uint8_t cc2420_writereg(uint8_t addr, uint16_t data) { uint8_t status; { os_atomic_t _nesc_atomic = os_atomic_start(); { cc2420_bramspi = FALSE; OS_CLR_CC_CS_PIN(); SPDR = addr; while (!(SPSR & 0x80)) { } ; status = SPDR; if (addr > 0x0E) { SPDR = data >> 8; while (!(SPSR & 0x80)) { } ; SPDR = data & 0xff; while (!(SPSR & 0x80)) { } ; } cc2420_bramspi = TRUE; } os_atomic_end(_nesc_atomic); } OS_SET_CC_CS_PIN(); return status; } //---------------------------------------------------------------从cc2420指定的地址读数据 uint16_t cc2420_readreg(uint8_t addr) { uint16_t data = 0; uint8_t status; { os_atomic_t _nesc_atomic = os_atomic_start(); { cc2420_bramspi = FALSE; OS_CLR_CC_CS_PIN(); SPDR = addr | 0x40; while (!(SPSR & 0x80)) { } ; status = SPDR; SPDR = 0; while (!(SPSR & 0x80)) { }