nrf905无线发送 msp430.doc

#include /=#define uchar unsigned char#define uint unsigned int#define uclong unsigned long/=TXEN，TRX_CE，PWR_0 为收发模式控制端口=#define TXEN_0 P6OUT &=BIT0 /输出0#define TXEN_1 P6OUT |= BIT0 /输出1/=#define TRX_CE_0 P6OUT &=BIT1#define TRX_CE_1 P6OUT |= BIT1/=#define PWR_0 P6OUT &=BIT2#define PWR_1 P6OUT |= BIT2/=主入从出=#define MISO_0 P5OUT &=BIT2 #define MISO_1 P5OUT |= BIT2 /=主出从入=#define MOSI_0 P5OUT &=BIT1 #define MOSI_1 P5OUT |= BIT1 /=SPI时钟端口=#define SCK_0 P5OUT &=BIT3 #define SCK_1 P5OUT |= BIT3 /=SPI使能端口=#define CSN_0 P5OUT &=BIT0#define CSN_1 P5OUT |= BIT0/=以下为状态端口=/=AM 地址匹配=#define AM_0 P6OUT &=BIT4 #define AM_1 P6OUT |= BIT4/=DR 数据接收状态=#define DR_0 P6OUT &=BIT3#define DR_1 P6OUT |= BIT3/=CD 载波侦听状态=#define CD_0 P6OUT &=BIT5#define CD_1 P6OUT |= BIT5/=#define LED1_0 P2OUT &=BIT1 /输出0#define LED1_1 P2OUT |= BIT1 /输出1#define LED2_0 P2OUT &=BIT2 /输出0#define LED2_1 P2OUT |= BIT2 /输出1/=NRF905:SPI指令=#define WC0x00#define RC0x10#define WTP0x20#define RTP0x21#define WTA0x22#define RTA0x23#define RRP0x24/=32字节发送数据收发缓冲区=#define TxRxBuf_Len 32unsigned char TxRxBufTxRxBuf_Len= 0x01,0x02,0x03,0x4,0x05,0x06,0x07,0x08,0x09,0x10,0x11,0x12,0x13,0x14,0x15,0x16, 0x17,0x18,0x19,0x20,0x21,0x22,0x23,0x24,0x25,0x26,0x27,0x28,0x29,0x30,0x31,0x32,;char TxAddress4=0xcc,0xcc,0xcc,0xcc;char DATA_BUF;/=NRF905：10寄存器配置=unsigned char RFConf11= WC, /SPI写操作命令 0x4c, /CH_NO,配置频段在430MHZ 0x0C, /输出功率为10db,不重发，节电为正常模式 0x44, /地址宽度设置，为4字节 0x20,0x20, /接收发送有效数据长度为32字节 0xCC,0xCC,0xCC,0xCC, /接收地址 0x58, /CRC充许，8位CRC校验，外部时钟信号不使能，16M晶振;/*系统初始化*/void InitSys() unsigned int iq0; _DINT(); BCSCTL1 &=XT2OFF; do IFG1 &= OFIFG;/ 清除振荡器失效标志 for (iq0 = 0xFF; iq0 0; iq0-);/ 延时，等待XT2起振 while (IFG1 & OFIFG) != 0);/ 判断XT2是否起振 BCSCTL2 =SELM1+SELS; /MCLK,SMCLK时钟为XT2/?USART0/=初始化nRF905=void nRF905_IO_set(void) P6DIR |= 0x07; P6DIR &= 0x8F; P6SEL&=0x84; P2DIR |= 0xFF; P2DIR &= 0xFF; P2SEL&=0xFF; P5DIR |= 0xC0; P5DIR |= 0xFB; P5SEL&=0xF0; CSN_1; / Spi disableSCK_0; / Spi clock line init lowPWR_1; / nRF905 power onTRX_CE_0;/ Set nRF905 in standby modeTXEN_0;/ set radio in Rx mode/=void LED_IO_set(void) / P6DIR |= BIT2;P6OUT |= BIT2; /关闭电平转换 /=延时=void Delay(uchar n)uint i;while(n-)for(i=0;i80;i+);/=NRF905 SPI读函数（IO模拟SPI时序）=unsigned char SpiRead(void)unsigned char i;for (i=0;i8;i+)DATA_BUF=DATA_BUF1;SCK_1;if (P5IN&0x04)/读取最高位，保存至最末尾，通过左移位完成整个字节DATA_BUF|=0x01;elseDATA_BUF&=(0x01);SCK_0; return DATA_BUF;/=NRF905 SPI读写函数（IO模拟SPI时序）=void SpiWrite(unsigned char send)unsigned char i;DATA_BUF=send;for (i=0;i8;i+)if (DATA_BUF&0x80) != 0)/总是发送最高位 MOSI_1; else MOSI_0; SCK_1;DATA_BUF=DATA_BUF1;SCK_0;/=初始化NRF905=void Config905(void)uchar i;CSN_0;/ Spi enable for write a spi commandfor (i=0;i11;i+)/ Write configration words 写放配置字 SpiWrite(RFConfi);CSN_1;/关闭SPI/=NRF905装载地址+数据打包+数据发送=void TxPacket(void)uchar i;CSN_0;SpiWrite(WTP);/ 待发数据装载命令for (i=0;i32;i+) SpiWrite(TxRxBufi);CSN_1; / 关闭SPIDelay(1);CSN_0;/ 打开SPISpiWrite(WTA);/ 写入地址要和接收方地址一样for (i=0;i=650us)/=数据发送=void TX(void) SetTxMode();TxPacket();/=主函数=void main(void) WDTCTL = WDTPW + WDTHOLD; /禁止看门狗 InitSys(); nRF905_IO_set(); LED_IO_set(); Config905