NRF24L01无线模块发送-AVR程序代码
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#include
#include
#include"lcd12864.h"
#defineuintunsignedint
#defineucharunsignedchar
#defineMISOPINB.6
#defineSCKPORTB.7
#defineMOSIPORTB.5
#defineCSNPORTC.0
#defineCEPORTC.1
#defineIRQPORTC.2
#defineCONFIG0x00//配置收发状态，CRC校验模式以及收发状态响应方式
#defineEN_AA0x01//自动应答使能
#defineEN_RXADDR0x02//接收地址允许
#defineSETUP_AW0x03//设置地址宽度
#defineSETUP_RETR0x04//建立自动重发
#defineRF_CH0x05//射频通道
#defineRF_SETUP0x06//射频寄存器
#defineSTATUS0x07//状态寄存器
#defineOBSTERVE_TX0x08//发送检测寄存器
#defineCD0x09//载波检测
#defineRX_ADDR_P00x0a//数据通道0接收地址
#defineRX_ADDR_P10x0b//数据通道0接收地址
#defineRX_ADDR_P20x0c//数据通道0接收地址
#defineRX_ADDR_P30x0d//数据通道0接收地址
#defineRX_ADDR_P40x0e//数据通道0接收地址
#defineRX_ADDR_P50x0f//数据通道0接收地址
#defineTX_ADDR0x10//发送地址
#defineRX_PW_P00x11//
#defineRX_PW_P10x12//
#defineRX_PW_P20x13//
#defineRX_PW_P30x14//
#defineRX_PW_P40x15//
#defineRX_PW_P50x16//
#defineFIFO_STATUS0x17//FIFO状态寄存器
#defineREAD_REG0x00//读寄存器指令
#defineWRITE_REG0x20//写寄存器指令
#defineRD_RX_PLOAD0x61//读取接收数据指令
#defineWR_TX_PLOAD0xA0//写待发数据指令
#defineFLUSH_TX0xE1//冲洗发送FIFO指令
#defineFLUSH_RX0xE2//冲洗接收FIFO指令
#defineREUSE_TX_PL0xE3//定义重复装载数据指令
#defineNOP0xFF//保留
#defineTX_ADR_WIDTH5//5uintsTXaddresswidth
#defineRX_ADR_WIDTH5//5uintsRXaddresswidth
#defineTX_PLOAD_WIDTH20//20uintsTXpayload
#defineRX_PLOAD_WIDTH20//20uintsTXpayload
ucharstatus;
ucharstr[30];
ucharTX_ADDRESS[TX_ADR_WIDTH]={0x05,0x04,0x03,0x02,0x01};//本地地址
ucharRX_ADDRESS[RX_ADR_WIDTH]={0x05,0x04,0x03,0x02,0x01};//接收地址
ucharTxBuf[17]="anywhereyouare";
ucharSPI_RW(ucharuuchar)//SPI写时序
{
ucharbit_ctr;
for(bit_ctr=0;bit_ctr<8;bit_ctr++)
{
MOSI=(uuchar&0x80);
uuchar=(uuchar<<1);
SCK=1;
uuchar|=MISO;
SCK=0;
}
return(uuchar);
}
ucharSPI_Read(ucharreg)//SPI读取一个字节
{
ucharreg_val;
CSN=0;
SPI_RW(reg);
delay_ms(1);
reg_val=SPI_RW(0);
delay_ms(1);
CSN=1;
return(reg_val);
}
ucharSPI_RW_Reg(ucharreg,ucharvalue)//写一个自接到寄存器函数
{
ucharstatus;
CSN=0;
status=SPI_RW(reg);
delay_ms(1);
SPI_RW(value);
delay_ms(1);
CSN=1;
return(status);
}
uchar*ucharostr(ucharnum)
{
ucharx00,xx,x0,x,n;
x00=num/100;
xx=num0;
x0=xx/10;
x=xx;
n=0;
if(x00!=0)
{
str[n]=x00+48;
n++;
}
if(!(x00==0&x0==0))
{
str[n]=x0+48;
n++;
}
str[n]=x+48;
n++;
str[n]=' ';
returnstr;
}
ucharSPI_Read_Buf(ucharreg,uchar*pBuf,ucharuchars)//用于读数据，reg:寄存器地址，pBuf:带度数数据地址，uchars数据个数
{
ucharstatus,uchar_ctr;
CSN=0;
status=SPI_RW(reg);
for(uchar_ctr=0;uchar_ctr
{
pBuf[uchar_ctr]=SPI_RW(0);
}
CSN=1;
return(status);
}
uintSPI_Write_Buf(ucharreg,uchar*pBuf,ucharuchars)
{
uintstatus,uchar_ctr;
CSN=0;//SPI使能
status=SPI_RW(reg);
for(uchar_ctr=0;uchar_ctr
SPI_RW(*pBuf++);
CSN=1;//关闭SPI
return(status);//
}
voidinit_NRF24L01(void)
{
delay_ms(1);
CE=0;//射频停止工作
CSN=1;
SCK=0;
IRQ=1;//中断复位
SPI_RW_Reg(WRITE_REG+EN_AA,0x00);//频道0自动，ack应答禁止
SPI_RW_Reg(WRITE_REG+SETUP_RETR,0x00);//禁止自动发送
SPI_RW_Reg(WRITE_REG+EN_RXADDR,0x00);//允许接收地址只有频道0
SPI_RW_Reg(WRITE_REG+RF_CH,1);//设置信道工作为2.4GHZ，收发必须一致
SPI_RW_Reg(WRITE_REG+RX_PW_P0,RX_PLOAD_WIDTH);//设置接收数据长度，32字节
SPI_RW_Reg(WRITE_REG+RF_SETUP,0x07);//发射速率2MHZ，发射功率最大为0dB
}
voidnRF24L01_TxPacket(unsignedchar*tx_buf)//发送tx_buf总中数据
{
CE=0;
SPI_Write_Buf(WRITE_REG+TX_ADDR,TX_ADDRESS,TX_ADR_WIDTH);//写本地地址
SPI_Write_Buf(WRITE_REG+RX_ADDR_P0,TX_ADDRESS,TX_ADR_WIDTH);//装在接收端地址
SPI_Write_Buf(WR_TX_PLOAD,tx_buf,TX_PLOAD_WIDTH);//装在要发送的数据
SPI_RW_Reg(WRITE_REG+CONFIG,0x0e);//IRQ收发完成中断响应，16位CRC，发送模式
CE=1;//置高CE，激发数据发送
delay_ms(1);
}
voidmain(void)
{ucharfifo_s;
ucharstatus;
uchari;
//Declareyourlocalvariableshere
//Input/OutputPortsinitialization
//PortAinitialization
//Func7=InFunc6=InFunc5=InFunc4=InFunc3=InFunc2=InFunc1=InFunc0=In
//State7=TState6=TState5=TState4=TState3=TState2=TState1=TState0=T
PORTA=0x00;
DDRA=0x00;
//PortBinitialization
//Func7=InFunc6=InFunc5=InFunc4=InFunc3=InFunc2=InFunc1=InFunc0=In
//State7=TState6=TState5=TState4=TState3=TState2=TState1=TState0=T
PORTB=0x00;
DDRB=0xB0;
//PortCinitialization
//Func7=InFunc6=InFunc5=InFunc4=InFunc3=InFunc2=InFunc1=InFunc0=In
//State7=TState6=TState5=TState4=TState3=TState2=TState1=TState0=T
PORTC=0x00;
DDRC=0xff;
//PortDinitialization
//Func7=InFunc6=InFunc5=InFunc4=InFunc3=InFunc2=InFunc1=InFunc0=In
//State7=TState6=TState5=TState4=TState3=TState2=TState1=TState0=T
PORTD=0x00;
DDRD=0x00;
//Timer/Counter0initialization
//Clocksource:SystemClock
//Clockvalue:Timer0Stopped
//Mode:Normaltop=FFh
//OC0output:Disconnected
TCCR0=0x00;
TCNT0=0x00;
OCR0=0x00;
//Timer/Counter1initialization
//Clocksource:SystemClock
//Clockvalue:Timer1Stopped
//Mode:Normaltop=FFFFh
//OC1Aoutput:Discon.
//OC1Boutput:Discon.
//NoiseCanceler:Off
//InputCaptureonFallingEdge
//Timer1OverflowInterrupt:Off
//InputCaptureInterrupt:Off
//CompareAMatchInterrupt:Off
//CompareBMatchInterrupt:Off
TCCR1A=0x00;
TCCR1B=0x00;
TCNT1H=0x00;
TCNT1L=0x00;
ICR1H=0x00;
ICR1L=0x00;
OCR1AH=0x00;
OCR1AL=0x00;
OCR1BH=0x00;
OCR1BL=0x00;
//Timer/Counter2initialization
//Clocksource:SystemClock
//Clockvalue:Timer2Stopped
//Mode:Normaltop=FFh
//OC2output:Disconnected
ASSR=0x00;
TCCR2=0x00;
TCNT2=0x00;
OCR2=0x00;
//ExternalInterrupt(s)initialization
//INT0:Off
//INT1:Off
//INT2:Off
MCUCR=0x00;
MCUCSR=0x00;
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