nrf_transmit.lst

使用51单片机实现NRF24L01的无线收发程序

C51 COMPILER V7.20   NRF_TRANSMIT                                                          02/26/2009 18:53:35 PAGE 1   


C51 COMPILER V7.20, COMPILATION OF MODULE NRF_TRANSMIT
OBJECT MODULE PLACED IN NRF_transmit.OBJ
COMPILER INVOKED BY: e:\Keil\C51\BIN\C51.EXE NRF_transmit.c BROWSE DEBUG OBJECTEXTEND

line level    source

   1          #include <reg51.h>
   2          #include <intrins.h>
   3          #include "api.h"
   4          /***************************************************/
   5          #define uchar unsigned char
   6          #define TX_ADR_WIDTH    5   // 地址字节数为5 BYTE
   7          #define TX_PLOAD_WIDTH  20  // 数据量为20 BYTE
   8          
   9          uchar const TX_ADDRESS[TX_ADR_WIDTH]  = {0x34,0x43,0x10,0x10,0x01}; // 接收发送数据的地址.
  10          uchar rx_buf[TX_PLOAD_WIDTH];
  11          uchar tx_buf[TX_PLOAD_WIDTH];
  12          uchar flag;
  13          uchar stx_en=1;
  14          uchar srx_en=1;
  15          int rxtx_time;
  16          uchar rx_data;
  17          uchar tx_data;
  18          /**************************************************/
  19          sbit CE =  P1^3;
  20          sbit CSN=  P1^4;
  21          sbit SCK=  P1^7;
  22          sbit MOSI= P1^5;
  23          sbit MISO= P1^6;
  24          sbit IRQ = P3^2;
  25          sbit rece_led = P1^0;
  26          sbit test_led = P3^7;
  27          
  28          /**************************************************/
  29          uchar   bdata sta;
  30          sbit    RX_DR   =sta^6;
  31          sbit    TX_DS   =sta^5;
  32          sbit    MAX_RT  =sta^4;
  33          
  34          /**************************************************/
  35          
  36          void init_io(void)
  37          {   
  38   1              CE=0;               // chip enable
  39   1              CSN=1;                  // Spi disable  
  40   1              SCK=0;                  // Spi clock line init high
  41   1      }
  42          
  43          /**************************************************/
  44          void init_int0(void)
  45          {       
  46   1          EA=1;
  47   1              EX0=1;                          
  48   1      }
  49          
  50          /**************************************************/
  51          
  52          void delay100(void)
  53          {       uchar  x;
  54   1              uchar  y;
  55   1              for(x=0;x<10;x++)
C51 COMPILER V7.20   NRF_TRANSMIT                                                          02/26/2009 18:53:35 PAGE 2   

  56   1              {       for(y=0;y<100;y++)
  57   2                      _nop_();
  58   2              }
  59   1      }
  60          
  61          /**************************************************/
  62          void delay_ms(unsigned int x)
  63          {   unsigned int i,j;
  64   1          i=0;
  65   1          for(i=0;i<x;i++)
  66   1          {  j=108;           
  67   2             while(j--);
  68   2          }
  69   1      }
  70          
  71          /**************************************************/
  72          
  73          uchar SPI_RW(uchar byte)                                                                        
  74          {       uchar bit_ctr;
  75   1              for(bit_ctr=0;bit_ctr<8;bit_ctr++)   // 输出 8 位
  76   1              {       MOSI = (byte & 0x80);         // 从MOSI脚输出,从高位到低位.当BYTE 最高位为1时逻辑运算为1,输出1.运算