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BK2411初始化过程比24L01要复杂一点,但初始化完成后,使用过程就与24L01一样了.下面的初始化已调试通过.
MCU:atmega48 晶振:8M
声明:本开源码参考了厂家源程序,仅供个人技术交流,未经许可严禁用于商业用途.
如牵涉各种权利问题,请通知本人删除.
//****************************************************************//
// SPI(nRF24L01) commands
#define READ_REG 0x00 // Define read command to register
#define WRITE_REG 0x20 // Define write command to register
#define RD_RX_PLOAD 0x61 // Define RX payload register address
#define WR_TX_PLOAD 0xA0 // Define TX payload register address
#define FLUSH_TX 0xE1 // Define flush TX register command
#define FLUSH_RX 0xE2 // Define flush RX register command
#define REUSE_TX_PL 0xE3 // Define reuse TX payload register command
#define W_TX_PAYLOAD_NOACK_CMD 0xb0
#define W_ACK_PAYLOAD_CMD 0xa8
#define ACTIVATE_CMD 0x50
#define R_RX_PL_WID_CMD 0x60
#define NOP 0xFF // Define No Operation, might be used to read status register
//***************************************************//
// SPI(nRF24L01) registers(addresses)
#define CONFIG 0x00 // 'Config' register address
#define EN_AA 0x01 // 'Enable Auto Acknowledgment' register address
#define EN_RXADDR 0x02 // 'Enabled RX addresses' register address
#define SETUP_AW 0x03 // 'Setup address width' register address
#define SETUP_RETR 0x04 // 'Setup Auto. Retrans' register address
#define RF_CH 0x05 // 'RF channel' register address
#define RF_SETUP 0x06 // 'RF setup' register address
#define STATUS 0x07 // 'Status' register address
#define OBSERVE_TX 0x08 // 'Observe TX' register address
#define CD 0x09 // 'Carrier Detect' register address
#define RX_ADDR_P0 0x0A // 'RX address pipe0' register address
#define RX_ADDR_P1 0x0B // 'RX address pipe1' register address
#define RX_ADDR_P2 0x0C // 'RX address pipe2' register address
#define RX_ADDR_P3 0x0D // 'RX address pipe3' register address
#define RX_ADDR_P4 0x0E // 'RX address pipe4' register address
#define RX_ADDR_P5 0x0F // 'RX address pipe5' register address
#define TX_ADDR 0x10 // 'TX address' register address
#define RX_PW_P0 0x11 // 'RX payload width, pipe0' register address
#define RX_PW_P1 0x12 // 'RX payload width, pipe1' register address
#define RX_PW_P2 0x13 // 'RX payload width, pipe2' register address
#define RX_PW_P3 0x14 // 'RX payload width, pipe3' register address
#define RX_PW_P4 0x15 // 'RX payload width, pipe4' register address
#define RX_PW_P5 0x16 // 'RX payload width, pipe5' register address
#define FIFO_STATUS 0x17 // 'FIFO Status Register' register address
#define RX_DR (1<<6)
#define TX_DS (1<<5)
#define MAX_RT (1<<4)
//analog register initialization value
unsigned long RegArrFSKAnalog[]=
{
0xF2014B41,
0x30064BC0,
0x00C4FCF0,
0x603F0017,
0x0B009941,
0xBE7F0124,
0x00400000,
0x00000000,
0x00000000,
0x00000000,
0xF64EF5F6,
0x5C1851D6,
0x0053002D,
0x00700000
};
unsigned char RegArrFSKAnalogReg14[]=
{
0x41,0x10,0x08,0x82,
0x40,0x10,0x08,0xF2,
0x7C,0xEF,0xCF
};
//digital register initialization value
unsigned char RegArrFSK[][2]=
{
{0,0x0F},
{1,0x3F},
{2,0x3F},
{3,0x03},
{4,0x3f},
{5,0x45},
{6,0x07},
{7,0x07},
{8,0x00},
{9,0x00},
{12,0xc3},
{13,0xc4},
{14,0xc5},
{15,0xc6},
{17,0x20},
{18,0x20},
{19,0x20},
{20,0x20},
{21,0x20},
{22,0x20},
{23,0x00},
{28,0x3F},
{29,0x07}
};
/////////////////////////////////////////////////////////////////////////////
//函 数: void InitRF(void);
//参 数: 无
//功 能: 初始化RF
/////////////////////////////////////////////////////////////////////////////
void InitRF(void)
{
char i = 0, j=0;
unsigned char WriteArr[4];
unsigned char nRegDat=0;
unsigned char t=0;
//上电延时100us
Delay_ms(20);
CSN_DIR();
CE_DIR();
SCK_DIR();
MOSI_DIR();
MISO_DIR_IN();
IRQ_DIR_IN();
CE_LOW(); // chip enable
CSN_HIGH(); // Spi disable
SCK_LOW(); // Spi clock line init high
Delay_ms(20);
//********************config digital register******************
SwitchCFG(0);
for(i=20;i>=0;i--) SPI_RW_Reg((WRITE_REG|RegArrFSK[0]),RegArrFSK[1]);
//reg 10 - Rx0 addr
SPI_Write_Buf((WRITE_REG|10),RX0_Address,5);
//reg 11 - Rx1 addr
SPI_Write_Buf((WRITE_REG|11),RX1_Address,5);
//reg 16 - TX addr
SPI_Write_Buf((WRITE_REG|16),RX0_Address,5);
SPI_RW_Reg(ACTIVATE_CMD,0x73);// Active
for(i=22;i>=21;i--) SPI_RW_Reg((WRITE_REG|RegArrFSK[0]),RegArrFSK[1]);
//********************config analog register******************
SwitchCFG(1);
for(i=0;i<=8;i++)//reverse
{
for(j=0;j<4;j++) WriteArr[j]=(RegArrFSKAnalog>>(8*(j)))&0xff;
SPI_Write_Buf((WRITE_REG|i),&(WriteArr[0]),4);
}
for(i=9;i<=13;i++)
{
for(j=0;j<4;j++) WriteArr[j]=(RegArrFSKAnalog>>(8*(3-j)))&0xff;
SPI_Write_Buf((WRITE_REG|i),&(WriteArr[0]),4);
}
SPI_Write_Buf((WRITE_REG|14),&(RegArrFSKAnalogReg14[0]),11);
//reg4 clear bit 0,1,3,23
for(j=0;j<4;j++) WriteArr[j]=(RegArrFSKAnalog[4]>>(8*(j) ) )&0xff;
WriteArr[3]=WriteArr[3]&0xf0;
WriteArr[1]=WriteArr[1]&0x7F;
SPI_Write_Buf((WRITE_REG|4),&(WriteArr[0]),4);
//tog reg4 bit25,bit26
for(j=0;j<4;j++) WriteArr[j]=(RegArrFSKAnalog[4]>>(8*(j)))&0xff;
Delay_ms(10);
WriteArr[0]=WriteArr[0]|0x06;
SPI_Write_Buf((WRITE_REG|4),&(WriteArr[0]),4);
Delay_ms(10);
WriteArr[0]=WriteArr[0]&0xf9;
SPI_Write_Buf((WRITE_REG|4),&(WriteArr[0]),4);
//reg4 set bit 0,1,3,23
Delay_ms(50);
for(j=0;j<4;j++) WriteArr[j]=(RegArrFSKAnalog[4]>>(8*(j)))&0xff;
SPI_Write_Buf((WRITE_REG|4),&(WriteArr[0]),4);
//********************switch back to digital register access******************
SwitchCFG(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, RX_ADDRESS, RX_ADR_WIDTH); //写接收端地址
SPI_RW_Reg(WRITE_REG + EN_AA, 0x01); //频道0自动 ACK应答允许
SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01); //允许接收地址只有频道0，如果需要多频道可以参考Page21
SPI_RW_Reg(WRITE_REG + RF_CH, RF_Channel); //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，本次设置为32字节
SPI_RW_Reg(WRITE_REG + RF_SETUP, 0x07); //设置发射速率为1MHZ，发射功率为最大值0dB
SPI_RW_Reg(WRITE_REG + CONFIG, 0x0e); // IRQ收发完成中断响应，16位CRC，主发送
SPI_RW_Reg(WRITE_REG+SETUP_AW,0X02); //设置地址宽度为4字节
SPI_RW_Reg(WRITE_REG+SETUP_RETR,0X1A); //建立自动重发，500+86us，10次重发
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发表于 2009-10-4 09:17:12
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