cjm1234 发表于 2016-6-26 22:57
楼主能贴下成功的代码嘛？感谢
#include "NRF24L01.h"
//P9.0 -> CE
//P9.4 -> CSN
//P9.5 -> IRQ
uint8_t TX_ADDRESS[TX_ADR_WIDTH]={0x34,0x43,0x10,0x10,0x01}; //Send Addr
uint8_t RX_ADDRESS[RX_ADR_WIDTH]={0x34,0x43,0x10,0x10,0x01}; //Receive Addr
void NRF_GPIO_Config()
{
P9SEL &= ~(BIT0 + BIT4);
P9DIR |= BIT0 + BIT4;
P9DIR &= ~BIT5;
P9DS |= BIT0 + BIT4;
}
uint8_t NRF_WriteReg(uint8_t reg,uint8_t val)
{
uint8_t temp = 0;
NRF_CSN_0;
temp = SPI2_SendReceive_SingleByte(reg);
SPI2_SendReceive_SingleByte(val);
NRF_CSN_1;
return temp;
}
uint8_t NRF_ReadReg(uint8_t reg)
{
uint8_t val = 0;
NRF_CSN_0;
SPI2_SendReceive_SingleByte(reg);
val=SPI2_SendReceive_SingleByte(0xFF);
NRF_CSN_1;
return val;
}
uint8_t NRF_ReadBuf(uint8_t reg,uint8_t *buff,uint8_t num)
{
uint8_t i = 0,val = 0;
NRF_CSN_0;
val = SPI2_SendReceive_SingleByte(reg);
for(i = 0;i < num;i++)
buff[i] = SPI2_SendReceive_SingleByte(0xFF);
NRF_CSN_1;
return val;
}
uint8_t NRF_WriteBuf(uint8_t reg,uint8_t *buff,uint8_t num)
{
uint8_t val = 0,i = 0;
NRF_CSN_0;
val = SPI2_SendReceive_SingleByte(reg);
for(i = 0;i < num;i++)
SPI2_SendReceive_SingleByte(buff[i]);
NRF_CSN_1;
return val;
}
void Set_Rx_Mode()
{
NRF_CE_0;
NRF_WriteReg(WRITE_REG+CONFIG, 0x0F);
NRF_CE_1;
delay_ms(1);
}
void Set_Tx_Mode()
{
NRF_CE_0;
NRF_WriteReg(WRITE_REG+CONFIG, 0x0E);
NRF_CE_1;
delay_ms(1);
}
uint8_t NRF_SendPacket(uint8_t *TxBuf)
{
uint8_t val = 0;
NRF_CE_0;
NRF_WriteBuf(WR_TX_PLOAD,TxBuf,TX_PLOAD_WIDTH);
Set_Tx_Mode();
NRF_CE_1;
delay_ms(1);
// while(NRF_IRQ != 0);
val=NRF_ReadReg(STATUS);
NRF_WriteReg(WRITE_REG+STATUS,0xFF);
if(val&TX_OK)
return TX_OK;
if(val&MAX_TX)
{
NRF_WriteReg(WRITE_REG+STATUS,0xff);
NRF_WriteReg(FLUSH_TX,0xFF);
return MAX_TX;
}
return 0xFF;
}
uint8_t NRF_ReceivePacket(uint8_t *RxBuf)
{
uint8_t val = 0;
NRF_CE_0;
Set_Rx_Mode();
NRF_CE_1;
delay_us(500);
while(NRF_IRQ != 0);
val=NRF_ReadReg(STATUS);
if(val&RX_OK)
{
NRF_ReadBuf(RD_RX_PLOAD,RxBuf,RX_PLOAD_WIDTH);
NRF_WriteReg(FLUSH_RX,0xff);
return 0;
}
return 0xff;
}
void NRF_Config()
{
delay_us(1000);
NRF_GPIO_Config();
SPI2_Init();
delay_us(250);
NRF_CE_0;
NRF_CSN_1;
P9OUT &= ~BIT3;
NRF_WriteBuf(WRITE_REG + TX_ADDR,TX_ADDRESS,TX_ADR_WIDTH);
NRF_WriteBuf(WRITE_REG + RX_ADDR_P0,RX_ADDRESS,RX_ADR_WIDTH);
NRF_WriteReg(WRITE_REG + EN_AA,0x01);
NRF_WriteReg(WRITE_REG + EN_RXADDR,0x01);
NRF_WriteReg(WRITE_REG + RF_CH,0);
NRF_WriteReg(WRITE_REG + RX_PW_P0,RX_PLOAD_WIDTH);
NRF_WriteReg(WRITE_REG + RF_SETUP,0x07);
}复制代码
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