NRF24L01的发送与接收程序

1、NRF24L01的发送与接 收程序 -CAL-FENGHAI-(2020YEAR-YICAI)JINGBIAN include ftinclude typedef unsigned char uchar； typedef unsigned char uint； SCK = 1; uchar |= MISO;then set SCK low again return(uchar)； SPI_RW(reg); reg val = SPI_RW(O)； then read registervalue CSN = 1;and write value to it. uchar |= MISO；then

2、set SCK low again return(uchar)； SPI_RW(reg); reg val = SPI_RW(0)； then read registervalue CSN = 1; CSN = 2; and write value to it. / CSN high again return(status)； / return nRF24L01 status uchar 厂函数：uint SPI_Read_Buf(uchar reg, uchar *pBufz uchar ucha 厂功能:用于读数据，g：为寄存器地址，pBuf：为待读出数据地址，uchars：读出数据的个数

3、 uint SPI_Read_Buf(uchar reg, uchar *pBuf, uchar ucha uint status,ucharctr； / Set CSN low, init SPI tranaction status = SPI_RW(reg)； / Select register to write to and read status uchar for(uchar_ctr=0；uchar_ctruchars；uchar_ctr-H-| pBufuchar_ctr = SPI_RW(0); / return(status)；/ return nRF24L01 status

4、uchar / 拿*拿*拿*車*拿* 厂函数：uint SPI_Write_Buf(uchar reg, uchar *pBut uchar uchars) 厂功能:用于写数据：为寄存器地址，pBuf：为待写入数据地址，uchars：写入数据的个数 uint SPI_Write_Buf(uchar reg, uchar *pBuf# uchar uchars) uint status,ucharctr； CSN = 0; /SPI 使能 status = SPI_RW(reg)； for(uchar_ctr=0； uchar_ctruchars； uchar_ctr+) / SPI_RW(tp

5、Buf+); CSN = 1; 关闭 SPI return(status)； / 厂函数:void SetRXJVIode(void) 厂功能：数据接收配置 void SetRXJVIode(void) CE=O; SPI_RW_RQg(WRITE_REG + CONFIG, OxOf); ,主接收 /IRQ收发完成中断响应，16位CRC CE = 1; inerDelayus(130); 延时不能太短 厂函数：unsigned char nRF24L01_RxPacket(unsigned cha广 rx buf) 厂功能：数据读取后放如rx.buf接收缓冲区中 unsigned char

6、nRF24L01_RxPacket(unsigned char* rx buf) unsigned char revale=0； sta=SPLRead(STATUS);/读取状态寄存其来判断数据接收状况 if(RX_DR)/判断是否接收到数据 CE = O;/SPI 使能 SPI_Read_Buf(RD_RX_PLOAD,rx_buf,TX_PLOAD_WIDTH); read receive payload from RXJIFO buffer revale =1;读取数据完成标志 SPI_RW_Reg(WRITE_REG+STATUS,sta); 接收到数据后 RX_DR,TX_DS,M

7、AX_PT 都置高为 1,通过 写1来清楚中断标志 return revale； / 拿*拿*拿*拿*拿* 厂函数：void nRF24L01_TxPacket(unsigned char tx buf) 厂功能：发送tx_buf中数据 void nRF24L01_TxPacket(unsigned char tx buf) CE=O;/StandBy I 模式 SPI_Write_Buf(WRITE_REG + RX_ADDR_PO, TX_ADDRESS, TX_ADR_WIDTH); / 装載接收端地址 SPI_Write_Buf(WR_TX_PLOAD, tx_buf, TX_PLOAD_WIDTH);装载数据 /IRQ收发完成中断响应，16位CRC, / SPI_RW_Reg(WRITE_REG + CONFIG, OxOe); 主发送 CE=1;賈高CE,激发数据发送 inerDelayus(lO)； void main(void) uchar temp =0； init_NRF24L01(); nRF24L01_TxPacket(TxBuf)； / Transmit Tx buffer data Delay(6000); PO=OxBF; while(l) nRF24L