智能车制作
标题:
NRF24L01模块怎么编写数据包16进制码？小白求转换方法。
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作者:
改变光轨
时间:
2017-2-28 23:32
标题:
NRF24L01模块怎么编写数据包16进制码？小白求转换方法。
NRF24L01模块是怎么编写数据包16进制码的？表示不懂，请大神帮助
:lol:lol
比如 我想写一个lcd1602显示1234的数据包，那该怎么转换成16进制的32字节数据包？
已知数据发送是在文件前面的uchar TxBuf[32]数组里的。发送基本代码如下：
#include <reg52.h>
#include <intrins.h>
typedef unsigned char uchar;
typedef unsigned int uint;
//****************************************NRF24L01¶Ë¿ú¶¨òå***************************************
sbit MISO =P1^5;
sbit MOSI =P1^1;
sbit SCK =P1^6;
sbit CE =P1^7;
sbit CSN =P1^2;
sbit IRQ =P1^0;
//************************************°′¼ü***************************************************
sbit KEY1=P3^4;
//************************************·äÃ÷Æ÷***************************************************
sbit LED=P3^5;
//***********************************·￠Ëí»o3åÇø*********************************************
uchar TxBuf[32]=
{
0x01,0x02,0x03,0x4,0x05,0x06,0x07,0x08,
0x09,0x10,0x11,0x12,0x13,0x14,0x15,0x16,
0x17,0x18,0x19,0x20,0x21,0x22,0x23,0x24,
0x25,0x26,0x27,0x28,0x29,0x30,0x31,0x32,
}; //
//*********************************************NRF24L01*************************************
#define TX_ADR_WIDTH 5 // 5 uints TX address width
#define RX_ADR_WIDTH 5 // 5 uints RX address width
#define TX_PLOAD_WIDTH 32 // 20 uints TX payload
#define RX_PLOAD_WIDTH 32 // 20 uints TX payload
uint const TX_ADDRESS[TX_ADR_WIDTH]= {0x34,0x43,0x10,0x10,0x01};
uint const RX_ADDRESS[RX_ADR_WIDTH]= {0x34,0x43,0x10,0x10,0x01};
//***************************************NRF24L01¼Ä′æÆ÷Ö¸áî*******************************************************
#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 0x0
#define EN_AA 0x01
#define EN_RXADDR 0x0
#define SETUP_AW 0x03
#define SETUP_RETR 0x0
#define RF_CH 0x05
#define RF_SETUP 0x0
#define STATUS 0x0
#define OBSERVE_TX 0x0
#define CD 0x09
#define RX_ADDR_P0 0x0
#define RX_ADDR_P1 0x0B
#define RX_ADDR_P2 0x0C
#define RX_ADDR_P3 0x00
#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
//**************************************************************************************
void Delay(unsigned int s);
void inerDelay_us(unsigned char n);
void init_NRF24L01(void);
uint SPI_RW(uint uchar);
uchar SPI_Read(uchar reg);
void SetRX_Mode(void);
uint SPI_RW_Reg(uchar reg, uchar value);
uint SPI_Read_Buf(uchar reg, uchar *pBuf, uchar uchars);
uint SPI_Write_Buf(uchar reg, uchar *pBuf, uchar uchars);
unsigned char nRF24L01_RxPacket(unsigned char* rx_buf);
void nRF24L01_TxPacket(unsigned char * tx_buf);
//*****************************************3¤Ñóê±*****************************************
void Delay(unsigned int s)
{
unsigned int i;
for(i=0; i<s; i++);
for(i=0; i<s; i++);
}
uint bdata sta; //×′쬱êÖ¾
sbit RX_DR =sta^6;
sbit TX_DS =sta^5;
sbit MAX_RT =sta^4;
void inerDelay_us(unsigned char n)
{
for(;n>0;n--)
_nop_();
}
void init_NRF24L01()
{
inerDelay_us(100);
CE=0; // chip enable
CSN=1; // Spi disable
SCK=0; // Spi clock line init high
SPI_Write_Buf(WRITE_REG + TX_ADDR, TX_ADDRESS, TX_ADR_WIDTH);
SPI_Write_Buf(WRITE_REG + RX_ADDR_P0, RX_ADDRESS, RX_ADR_WIDTH)
SPI_RW_Reg(WRITE_REG + EN_AA, 0x01);
SPI_RW_Reg(WRITE_REG + EN_RXADDR, 0x01);
SPI_RW_Reg(WRITE_REG + RF_CH, 0);
SPI_RW_Reg(WRITE_REG + RX_PW_P0, RX_PLOAD_WIDTH);
SPI_RW_Reg(WRITE_REG + RF_SETUP, 0x07);
SPI_RW_Reg(WRITE_REG + CONFIG, 0x0e);
}
uint SPI_RW(uint uchar)
{
uint bit_ctr;
for(bit_ctr=0;bit_ctr<8;bit_ctr++) // output 8-bit
{
MOSI = (uchar & 0x80); // output 'uchar', MSB to MOSI
uchar = (uchar << 1); // shift next bit into MSB..
SCK = 1; // Set SCK high..
uchar |= MISO; // capture current MISO bit
SCK = 0; // ..then set SCK low again
}
return(uchar); // return read uchar
}
uchar SPI_Read(uchar reg)
{
uchar reg_val;
CSN = 0; // CSN low, initialize SPI communication...
SPI_RW(reg); // Select register to read from..
reg_val = SPI_RW(0); // ..then read registervalue
CSN = 1; // CSN high, terminate SPI communication
return(reg_val); // return register value
}
uint SPI_RW_Reg(uchar reg, uchar value)
{
uint status;
CSN = 0; // CSN low, init SPI transaction
status = SPI_RW(reg); // select register
SPI_RW(value); // ..and write value to it..
CSN = 1; // CSN high again
return(status); // return nRF24L01 status uchar
}
作者:
改变光轨
时间:
2017-2-28 23:33
uint SPI_Read_Buf(uchar reg, uchar *pBuf, uchar uchars)
{
uint status,uchar_ctr;
CSN = 0; // Set CSN low, init SPI tranaction
status = SPI_RW(reg); // Select register to write to and read status uchar
for(uchar_ctr=0;uchar_ctr<uchars;uchar_ctr++)
pBuf[uchar_ctr] = SPI_RW(0); //
CSN = 1;
return(status); // return nRF24L01 status uchar
}
uint SPI_Write_Buf(uchar reg, uchar *pBuf, uchar uchars)
{
uint status,uchar_ctr;
CSN = 0; //SPIê1Äü
status = SPI_RW(reg);
for(uchar_ctr=0; uchar_ctr<uchars; uchar_ctr++) //
SPI_RW(*pBuf++);
CSN = 1; //1رÕSPI
return(status); //
}
void SetRX_Mode(void)
{
CE=0;
SPI_RW_Reg(WRITE_REG + CONFIG, 0x0f);
CE = 1;
inerDelay_us(130); //Ñóê±2»Äü쫶ì
}
unsigned char nRF24L01_RxPacket(unsigned char* rx_buf)
{
unsigned char revale=0;
sta=SPI_Read(STATUS);
if(RX_DR)
{
CE = 0;
SPI_Read_Buf(RD_RX_PLOAD,rx_buf,TX_PLOAD_WIDTH);// read receive payload from RX_FIFO buffer
revale =1;
}
SPI_RW_Reg(WRITE_REG+STATUS,sta);
return revale;
}
void nRF24L01_TxPacket(unsigned char * tx_buf)
{
CE=0; //StandBy IÄ￡ê½
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 + CONFIG, 0x0e);
CE=1;
inerDelay_us(10);
}
void main()
{
uchar temp =0;
init_NRF24L01() ;
nRF24L01_TxPacket(TxBuf);
Delay(6000);
P0=0xBF;
while(1)
{
nRF24L01_TxPacket(TxBuf); // Transmit Tx buffer data
LED=0;
Delay(10000); //¿é±ä
SPI_RW_Reg(WRITE_REG+STATUS,0XFF);
LED=1;
Delay(8000);
}
}
求解决哦!谢谢你~~~
:lol:lol
作者:
玩意Tc
时间:
2017-3-1 13:23
吧16 进制拆成两个8进制的 最后再合成不就好了，，， send[0]=12;send[1]=34
receive_data = send[0]<<8 | send[1];
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