单片机nRF24L01无线传感模块接收和发送程序 -

#include <reg52.h>
#include<intrins.h>
#define uchar unsigned char
#define uint unsigned int
sbit RS = P0^2; //定义端口
sbit RW = P0^1;
sbit EN = P0^0;
sbit DQ = P0^3; //定义总线的I/O管脚
bit crrent;
uint value;
uchar data disdat[6];
uchar data setdat[4];
#define TX_ADR_WIDTH 5
#define TX_PLOAD_WIDTH 2
uchar const TX_ADDRESS[TX_ADR_WIDTH]={0x34,0x55,0x10,0x10,0x01};
uchar rx_buf[TX_PLOAD_WIDTH];
uchar tx_buf[TX_PLOAD_WIDTH];
uchar distance_data[2];
uchar flag;
sbit CE=P2^5;
sbit CSN=P2^0;
sbit SCK=P2^4;
sbit MOSI=P2^1;
sbit MISO=P2^3;
sbit IRQ=P2^2;
uchar bdata sta;
sbit RX_DR =sta^6;
sbit TX_DS =sta^5;
sbit MAX_RT =sta^4;
unsigned char time;
#define READ_REG 0x00
#define WRITE_REG 0x20
#define RD_RX_PLOAD 0x61
#define WR_TX_PLOAD 0xA0
#define FLUSH_TX 0xE1
#define FLUSH_RX 0xE2
#define REUSE_TX_PL 0xE3
#define NOP 0xFF
#define CONFIG 0x00
#define EN_AA 0x01
#define EN_RXADDR 0x02
#define SETUP_AW 0x03
#define SETUP_RETR 0x04
#define RF_CH 0x05
#define RF_SETUP 0x06
#define STATUS 0x07
#define OBSERVE_TX 0x08
#define CD 0x09
#define RX_ADDR_P0 0x0A
#define RX_ADDR_P1 0x0B
#define RX_ADDR_P2 0x0C
#define RX_ADDR_P3 0x0D
#define RX_ADDR_P4 0x0E
#define RX_ADDR_P5 0x0F
#define TX_ADDR 0x10
#define RX_PW_P0 0x11
#define RX_PW_P1 0x12
#define RX_PW_P2 0x13
#define RX_PW_P3 0x14
#define RX_PW_P4 0x15
#define RX_PW_P5 0x16
#define FIFO_STATUS 0x17
void init_io(void)
{
CE=0;
CSN=1;
SCK=0;
}
void delay_ms(unsigned int x)
{
unsigned int i,j;
for(i=0;i<x;i++)
{
j=108;
while(j--);
}
}
uchar SPI_RW(uchar byte)
{
uchar bit_ctr;
for(bit_ctr=0;bit_ctr<8;bit_ctr++)
{
MOSI = (byte&0x80);
byte = (byte<<1);
SCK = 1;
byte|=MISO;
SCK=0;
}
return(byte);
}
uchar SPI_RW_Reg(uchar reg, uchar value)
{
uchar status;
CSN = 0;
status = SPI_RW(reg);
SPI_RW(value);
CSN = 1;
return(status);
}
uchar SPI_Read(uchar reg)
{
uchar reg_val;
CSN = 0;
SPI_RW(reg);
reg_val = SPI_RW(0);
CSN = 1;
return(reg_val);
}
uchar SPI_Read_Buf(uchar reg, uchar *pBuf, uchar bytes)
{
uchar status,byte_ctr;
CSN = 0;
status = SPI_RW(reg);
for(byte_ctr=0;byte_ctr<bytes;byte_ctr++)
pBuf[byte_ctr] = SPI_RW(0);
CSN = 1;
return(status);
}
uchar SPI_Write_Buf(uchar reg, uchar *pBuf, uchar bytes)
{
uchar status,byte_ctr;
CSN = 0;
status = SPI_RW(reg);
for(byte_ctr=0;
byte_ctr<bytes; byte_ctr++)
SPI_RW(*pBuf++);
CSN = 1;
return(status);
}
void TX_Mode(void)
{
CE=0;
SPI_Write_Buf(WRITE_REG + TX_ADDR, TX_ADDRESS, TX_ADR_WIDTH);
SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, TX_ADDRESS, TX_ADR_WIDTH);
SPI_Write_Buf(WR_TX_PLOAD, tx_buf, TX_PLOAD_WIDTH);
SPI_RW_Reg(WRITE_REG + EN_AA, 0x01);
SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01);
SPI_RW_Reg(WRITE_REG + SETUP_RETR, 0x1a);
SPI_RW_Reg(WRITE_REG + RF_CH,40);
SPI_RW_Reg(WRITE_REG + RF_SETUP, 0x07);
SPI_RW_Reg(WRITE_REG + CONFIG, 0x0e);
CE=1;
}
void checkflag()
{
sta=SPI_Read(STATUS);
if(RX_DR)
{
SPI_Read_Buf(RD_RX_PLOAD,rx_buf,TX_PLOAD_WIDTH);
flag=1;
}
if(MAX_RT)
{
SPI_RW_Reg(FLUSH_TX,0);
}
SPI_RW_Reg(WRITE_REG+STATUS,sta);
}
void SendByte(unsigned char dat);
void zf_1602(unsigned char x,unsigned char y,unsigned dat);
void Delay4us() //延时4us
{
;
}
void Delay(unsigned char j) //一个循环15us
{
unsigned char i;
while(j--)
{
i = 5;
while (--i);
}
}
bit d18b20_qs() //18b20 起始
{
DQ = 1; //DQ复位
Delay4us();
DQ = 0; //拉低总线
Delay(35);
DQ = 1;
Delay(2);
crrent= DQ;
Delay(2);
return crrent; //返回数值
}
void d18b20_x(unsigned char dat) //写 8 位数据
{
unsigned char i;
for(i=0;i<8;i++)
{
DQ = 0; //拉低总线
DQ = dat & 0x01;
Delay(3); //延时45us
DQ = 1;
dat >>= 1; //数据右移一位
}
}
unsigned char d18b20_d() //读 8 位数据
{
unsigned char i,dat=0;
for(i=0;i<8;i++) //8位计数器
{
DQ = 0; //拉低总线
dat >>= 1; //数据右移一位
DQ = 1;
if(DQ)
dat |= 0x80;
Delay(4);
}
return dat; //返回读取到数据数据
}
unsigned int wd() //读取温度函数
{
unsigned char i = 0; //低8位数据
unsigned char j = 0; //高8位数据
unsigned int k = 0;
d18b20_qs();
d18b20_x(0xCC);
d18b20_x(0x44);
Delay(200);
d18b20_qs();
d18b20_x(0xCC);
d18b20_x(0xBE);
i = d18b20_d();
j = d18b20_d();
distance_data[0]=j;
distance_data[1]=i;
k = j;
k <<= 8;
k = k + i;
return k; //返回读取到的16位数据
}
void zh(unsigned int i)
{
unsigned char x,z;
x = i & 0x0f; //取出小数
i >>=4;
switch(x) //小数位转换
{
case 0: z=0;break;
case 1: z=1;break;
case 2: z=1;break;
case 3: z=2;break;
case 4: z=3;break;
case 5: z=3;break;
case 6: z=4;break;
case 7: z=4;break;
case 8: z=5;break;
case 9: z=6;break;
case 10: z=6;break;
case 11: z=7;break;
case 12: z=8;break;
case 13: z=8;break;
case 14: z=9;break;
case 15: z=9;break;
}
z = z +48; //转换成ascii码
zf_1602(8,1,z); //写入1602缓存
z = i & 0xff; //取出整数
x = z/10; //取出十位
x= x+48;
zf_1602(5,1,x);
x = z%10;
x= x+48;
zf_1602(6,1,x);
}
void Delayus(unsigned char t)
{
while(--t);
}
void Delayms(unsigned char t)
{
while(t--)
{
//大致延时1mS
Delayus(245);
Delayus(245);
}
}
bit m_1602() //判断1602是否忙
{
P1 = 0xFF;
RS = 0;
RW = 1;
EN = 0;
_nop_();
EN = 1;
return (bit)(P1 & 0x80);
}
void x_1602(bit i,unsigned char j) //参数一是写（0、写指令 1、写数据），参数二是写入的8位数据
{
while(m_1602())
{
_nop_();
_nop_();
_nop_();
_nop_();
_nop_();
}
RS = i;
RW = 0;
EN = 1;
P1 = j;
_nop_();
EN = 0; //产生下降沿
}
void qp_1602() //清屏函数
{
x_1602(0,0x01); //第一个参数是：写入的类型（0、写指令 1、写数据），第一个参数是：写入的数据
Delayms(5);
}
//显示字符
void zf_1602(unsigned char x,unsigned char y,unsigned dat) //参数一是显示的列，参数二是显示的行，参数三是显示的数据
{
if(y==0)
{
x_1602(0,(0x80+x)); //第一行
}
else
{
x_1602(0,(0xc0+x)); //第二行
}
x_1602(1,dat); //写入数据
}
void zfc_1602(unsigned char x,unsigned char y,unsigned char *dat)
{
if(y==0)
{
x_1602(0,(0x80+x));
}
else
{
x_1602(0,(0xc0+x));
}
while(*dat) //&:取地址 *：取值
{
x_1602(1,*dat);
dat ++;
}
}
void csh_1602() //初始化1602
{
x_1602(0,0x38);
Delayms(5);
x_1602(0,0x38);
Delayms(5);
x_1602(0,0x38);
Delayms(5);
x_1602(0,0x38);
x_1602(0,0x08);
x_1602(0,0x01);
x_1602(0,0x06);
Delayms(5);
x_1602(0,0x0c);
}
void Lcd_User_Chr(void) // 1602 自定义字符(摄氏度的小点) 自定义字符
{
x_1602(0,0x48); //"01 001 000" 第1行地址
x_1602(1,0x03); //"XXX 00001" 第1行数据
x_1602(0,0x49); //"01 001 001" 第2行地址
x_1602(1,0x03); //"XXX 11011" 第2行数据
x_1602(0,0x4a); //"01 001 010" 第3行地址
x_1602(1,0x00); //"XXX 11101" 第3行数据
x_1602(0,0x4b); //"01 001 011" 第4行地址
x_1602(1,0x00); //"XXX 11001" 第4行数据
x_1602(0,0x4c); //"01 001 100" 第5行地址
x_1602(1,0x00); //"XXX 11101" 第5行数据
x_1602(0,0x4d); //"01 001 101" 第6行地址
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