si4432_example.zip_si4432

#include<stc15.h> #include<intrins.h> #include"user.h" #include"spi.h" #include"si4432.h" U8 ItStatus1,ItStatus2; void Delay_ms(U8 cnt) //@24.000MHz 不分频 { unsigned char i, j,k; for(k=0;k<cnt;k++) { i = 24; j = 85; do { while (--j); } while (--i); } } /* void Delay_us(U8 cnt) //@24.000MHz 不分频 { U8 i; for(i=0;i<cnt;i++) { _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); } } */ void Si4432_Init(void) { SDN=0; Delay_ms(30); //刚上电复位，SDN要至少拉低30ms /*进入初始化，首先通过读取中断状态寄存器清除中断标志*/ ItStatus1 = SpiReadRegister(0x03); ItStatus2 = SpiReadRegister(0x04); /*芯片复位，刚上电的单片机要对RFIC寄存器复位，以防出现不可知异常*/ SpiWriteRegister(0x07, 0x80); /*等待RFIC上电复位中断来临，并清除中断标志*/ //while ( NIRQ == 1); _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); ItStatus1 = SpiReadRegister(0x03); ItStatus2 = SpiReadRegister(0x04); /*等待RFIC就绪中断来临,并清除中断标志（或许不用）*/ // while ( NIRQ == 1); // ItStatus1 = SpiReadRegister(0x03); // ItStatus2 = SpiReadRegister(0x04); SpiWriteRegister(0x75, 0x75); SpiWriteRegister(0x76, 0xbb); SpiWriteRegister(0x77, 0x80); SpiWriteRegister(0x6e, 0x4e); SpiWriteRegister(0x6f, 0xa5); SpiWriteRegister(0x70, 0x2c); SpiWriteRegister(0x1c, 0xa5); SpiWriteRegister(0x20, 0xa1); SpiWriteRegister(0x21, 0x20); //这种设置就是以上都错，频率，波特率都错！！！！如何弄！！ SpiWriteRegister(0x22, 0x4e); SpiWriteRegister(0x23, 0xa5); SpiWriteRegister(0x24, 0x00); SpiWriteRegister(0x25, 0x13); SpiWriteRegister(0x1d, 0x40); //SpiWriteRegister(0x1e, 0x02); //SpiWriteRegister(0x2a, 0xff); SpiWriteRegister(0x72, 0x1f); SpiWriteRegister(0x34, 0x0c); SpiWriteRegister(0x35, 0x28); SpiWriteRegister(0x33, 0x02); SpiWriteRegister(0x36, 0x2d); SpiWriteRegister(0x37, 0xd4); SpiWriteRegister(0x30, 0x8d); SpiWriteRegister(0x32, 0x00); SpiWriteRegister(0x71, 0x63); SpiWriteRegister(0x0b, 0x12); SpiWriteRegister(0x0c, 0x15); SpiWriteRegister(0x5a, 0x7f); SpiWriteRegister(0x58, 0x80); SpiWriteRegister(0x59, 0x40); SpiWriteRegister(0x6a, 0x0b); SpiWriteRegister(0x68, 0x04); SpiWriteRegister(0x1f, 0x03); SpiWriteRegister(0x09, 0xD7); SpiWriteRegister(0x6d, 0x1e); SpiWriteRegister(0x07, 0x01); //接收FIFO清零 SpiWriteRegister(0x08,0x02); SpiWriteRegister(0x08,0x00); /*使能接收状态，等待接收中断*/ //使能接收包有效中断'ipkval' //使能CRC校验错误中断'icrcerror' SpiWriteRegister(0x05, 0x03); SpiWriteRegister(0x06, 0x00); //读中断状态寄存器，清除中断使能寄存器值改变引发的中断 // while(NIRQ); //是否需要看单片机速率 _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); ItStatus1 = SpiReadRegister(0x03); ItStatus2 = SpiReadRegister(0x04); //设置工作模式为接收模式，由预备模式转入 SpiWriteRegister(0x07, 0x05); } void RX_Mode(void) { // SpiWriteRegister(0x07, 0x01); //接收FIFO清零 // SpiWriteRegister(0x08,0x02); // SpiWriteRegister(0x08,0x00); //使能接收包有效中断'ipkval' //使能CRC校验错误中断'icrcerror' SpiWriteRegister(0x05, 0x03); SpiWriteRegister(0x06, 0x00); //读中断状态寄存器，清除中断使能寄存器值改变引发的中断 //while(NIRQ); //是否需要看单片机速率 _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); ItStatus1 = SpiReadRegister(0x03); ItStatus2 = SpiReadRegister(0x04); SpiWriteRegister(0x72, 0x1f); //手动接收模式打开，由预备模式转入 SpiWriteRegister(0x07, 0x05); } void TX_Mode(void) { //使能数据包发送中断 SpiWriteRegister(0x05, 0x04); SpiWriteRegister(0x06, 0x00); //读中断状态寄存器，清除中断使能寄存器值改变引发的中断 // while(NIRQ); //是否需要看单片机速率 _nop_(); _nop_(); _nop_(); _nop_(); _nop_(); ItStatus1 = SpiReadRegister(0x03); ItStatus2 = SpiReadRegister(0x04); //手动发射模式打开，由预备模式转入 SpiWriteRegister(0x07, 0x09); }