Question

nRF24l01无线模块 程序里有个头文件：#include<api.h> 谁知道，麻烦给下。

Answer 1

包含intrins.h这个文件，
在C51单片机编程中，头文件INTRINS.H的函数使用起来，就会让你像在用汇编时一样简便.
如果你要用到这个库文件里的函数的话，你就得包含它。
比如你要用_irol_这个函数，你就得包含它，要不让编译器会找不到这个函数，就会报错。
举例：
#include <intrins.h>
main()
{
unsigned int y;
y=0x00ff;
y=_irol_(y,4);
}
如果没有#include <intrins.h> ，就会报错的，所以，如果想使用 <intrins.h> 里面的函数，就要#include <intrins.h>
希望可以帮到你，

Answer 2

// BYTE type definition
#ifndef _BYTE_DEF_
#define _BYTE_DEF_
typedef unsigned char BYTE;
#endif /* _BYTE_DEF_ */
// Define interface to nRF24L01
/*#ifndef _SPI_PIN_DEF_
#define _SPI_PIN_DEF_
// Define SPI pins
/*sbit SCK = P0^0; // Master Out, Slave In pin (output)
sbit MISO = P0^1; // Master In, Slave Out pin (input)
sbit MOSI = P0^2; // Serial Clock pin, (output)
sbit CSN = P0^3; // Slave Select pin, (output to CSN, nRF24L01)
// Define CE & IRQ pins
sbit CE = P0^4; // Chip Enable pin signal (output)
sbit IRQ = P0^5; // Interrupt signal, from nRF24L01 (input)
#endif*/
// Macro to read SPI Interrupt flag
//#define WAIT_SPIF (!(SPI0CN & 0x80)) // SPI interrupt flag(礐 platform dependent)
// Declare SW/HW SPI modes
//#define SW_MODE 0x00
//#define HW_MODE 0x01
// Define nRF24L01 interrupt flag's
//#define MAX_RT 0x10 // Max #of TX retrans interrupt
//#define TX_DS 0x20 // TX data sent interrupt
//#define RX_DR 0x40 // RX data received
//#define SPI_CFG 0x40 // SPI Configuration register value
//#define SPI_CTR 0x01 // SPI Control register values
//#define SPI_CLK 0x00 // SYSCLK/2*(SPI_CLK+1) == > 12MHz / 2 = 6MHz
//#define SPI0E 0x02 // SPI Enable in XBR0 register
//****************************************************************//
// 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 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
//***************************************************************//
// FUNCTION's PROTOTYPES //
/****************************************************************
void SPI_Init(BYTE Mode); // Init HW or SW SPI
BYTE SPI_RW(BYTE byte); // Single SPI read/write
BYTE SPI_Read(BYTE reg); // Read one byte from nRF24L01
BYTE SPI_RW_Reg(BYTE reg, BYTE byte); // Write one byte to register 'reg'
BYTE SPI_Write_Buf(BYTE reg, BYTE *pBuf, BYTE bytes); // Writes multiply bytes to one register
BYTE SPI_Read_Buf(BYTE reg, BYTE *pBuf, BYTE bytes); // Read multiply bytes from one register
//*****************************************************************/

追问

其实我想问这个连接：http://wenku.baidu.com/view/969586d084254b35eefd3498.html
里面有一个：#include 你能确定是你粘贴个吗。

追答

这个文件一般都是NRF24L01寄存器的一些定义的，只作参考哈！