STM32---NRF24L01（临时代码）

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STMCU小助手发布时间：2023-1-4 21:13

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文章简介:	STM32---NRF24L01（临时代码）

#include<stm32f10x.h>
#define NRF_READ_REG 0x00 // ¶Á¼Ä´æÆ÷Ö¸Áî
#define NRF_WRITE_REG 0x20 // Ð´¼Ä´æÆ÷Ö¸Áî
#define ACTIVATE 0x50 // follow with 0x73 to activate feature register
#define R_RX_PL_WID 0x60 // ¶Á½ÓÊÕ»º³åÇøµÄ³¤¶È
#define RD_RX_PLOAD 0x61 // ¶ÁÈ¡½ÓÊÕÊý¾ÝÖ¸Áî
#define WR_TX_PLOAD 0xA0 // Ð´´ý·¢Êý¾ÝÖ¸Áî
#define W_ACK_PAYLOAD 0xA8 // Used in RX mode.
#define FLUSH_TX 0xE1 // ³åÏ´·¢ËÍ FIFOÖ¸Áî
#define FLUSH_RX 0xE2 // ³åÏ´½ÓÊÕ FIFOÖ¸Áî
#define REUSE_TX_PL 0xE3 // ¶¨ÒåÖØ¸´×°ÔØÊý¾ÝÖ¸Áî
#define NOP 0xFF // ±£Áô
/******************************************************************************
NRF24L01¼Ä´æÆ÷µØÖ·
*******************************************************************************/
#define CONFIG 0x00 // ÅäÖÃÊÕ·¢×´Ì¬£¬CRCÐ£ÑéÄ£Ê½ÒÔ¼°ÊÕ·¢×´Ì¬ÏìÓ¦·½Ê½
#define EN_AA 0x01 // ×Ô¶¯Ó¦´ð¹¦ÄÜÉèÖÃ
#define EN_RXADDR 0x02 // ¿ÉÓÃÐÅµÀÉèÖÃ
#define SETUP_AW 0x03 // ÊÕ·¢µØÖ·¿í¶ÈÉèÖÃ
#define SETUP_RETR 0x04 // ×Ô¶¯ÖØ·¢¹¦ÄÜÉèÖÃ
#define RF_CH 0x05 // ¹¤×÷ÆµÂÊÉèÖÃ
#define RF_SETUP 0x06 // ·¢ÉäËÙÂÊ¡¢¹¦ºÄ¹¦ÄÜÉèÖÃ
#define NRFRegSTATUS 0x07 // ×´Ì¬¼Ä´æÆ÷
#define OBSERVE_TX 0x08 // ·¢ËÍ¼à²â¹¦ÄÜ
#define CD 0x09 // µØÖ·¼ì²â
#define RX_ADDR_P0 0x0A // ÆµµÀ0½ÓÊÕÊý¾ÝµØÖ·
#define RX_ADDR_P1 0x0B // ÆµµÀ1½ÓÊÕÊý¾ÝµØÖ·
#define RX_ADDR_P2 0x0C // ÆµµÀ2½ÓÊÕÊý¾ÝµØÖ·
#define RX_ADDR_P3 0x0D // ÆµµÀ3½ÓÊÕÊý¾ÝµØÖ·
#define RX_ADDR_P4 0x0E // ÆµµÀ4½ÓÊÕÊý¾ÝµØÖ·
#define RX_ADDR_P5 0x0F // ÆµµÀ5½ÓÊÕÊý¾ÝµØÖ·
#define TX_ADDR 0x10 // ·¢ËÍµØÖ·¼Ä´æÆ÷
#define RX_PW_P0 0x11 // ½ÓÊÕÆµµÀ0½ÓÊÕÊý¾Ý³¤¶È
#define RX_PW_P1 0x12 // ½ÓÊÕÆµµÀ1½ÓÊÕÊý¾Ý³¤¶È
#define RX_PW_P2 0x13 // ½ÓÊÕÆµµÀ2½ÓÊÕÊý¾Ý³¤¶È
#define RX_PW_P3 0x14 // ½ÓÊÕÆµµÀ3½ÓÊÕÊý¾Ý³¤¶È
#define RX_PW_P4 0x15 // ½ÓÊÕÆµµÀ4½ÓÊÕÊý¾Ý³¤¶È
#define RX_PW_P5 0x16 // ½ÓÊÕÆµµÀ5½ÓÊÕÊý¾Ý³¤¶È
#define FIFO_STATUS 0x17 // FIFOÕ»ÈëÕ»³ö×´Ì¬¼Ä´æÆ÷ÉèÖÃ
#define DYNPD 0x1C // per pipe DPL control
#define FEATURE 0x1D // ¡°Feature¡± register address
#define NRF_CE_GPIO GPIOB
#define NRF_CE_Pin GPIO_Pin_2
#define NRF_CSN_GPIO GPIOA
#define NRF_CSN_Pin GPIO_Pin_4
#define NRF_IRQ_GPIO GPIOB
#define NRF_IRQ_Pin GPIO_Pin_0
#define NRF_CE_H NRF_CE_GPIO->BSRR = NRF_CE_Pin
#define NRF_CE_L NRF_CE_GPIO->BRR = NRF_CE_Pin
#define NRF_CSN_H NRF_CSN_GPIO->BSRR = NRF_CSN_Pin
#define NRF_CSN_L NRF_CSN_GPIO->BRR = NRF_CSN_Pin
#define NRF_IRQ_Read NRF_IRQ_GPIO->IDR & NRF_IRQ_Pin
char a_temp;
void PrintString(char *a)
{
while(*a != '\0')
{
a_temp = (char)*a ;
a++;
USART_ITConfig(USART1,USART_IT_TXE,ENABLE);
}
}
void SPI1_Init(void)
{
SPI_InitTypeDef SPI_InitStructure;
GPIO_InitTypeDef GPIO_InitStructure;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
//ÅäÖÃSCK,MISO,MOSIÒý½Å
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_5|GPIO_Pin_6|GPIO_Pin_7;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP; //ÍÆÍì¸´ÓÃ
GPIO_Init(GPIOA, &GPIO_InitStructure);
//ÅäÖÃCEÒý½Å
GPIO_InitStructure.GPIO_Pin = NRF_CE_Pin;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //ÍÆÍìÊä³ö
GPIO_Init(NRF_CE_GPIO, &GPIO_InitStructure);
//ÅäÖÃCSNÒý½Å
GPIO_InitStructure.GPIO_Pin = NRF_CSN_Pin;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_10MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_Out_PP; //ÍÆÍìÊä³ö
GPIO_Init(NRF_CSN_GPIO, &GPIO_InitStructure);
//ÅäÖÃIRQÒý½Å
GPIO_InitStructure.GPIO_Pin = NRF_IRQ_Pin;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; //ÉÏÀÊäÈë
GPIO_Init(NRF_IRQ_GPIO, &GPIO_InitStructure);
NRF_CSN_H; //½ûÖ¹NRFÆ÷¼þ
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex; //Ë«ÏßÈ«Ë«¹¤
SPI_InitStructure.SPI_Mode = SPI_Mode_Master; //Ö÷Ä£Ê½
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b; //Êý¾Ý´óÐ¡8Î»
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low; //Ê±ÖÓ¼«ÐÔ£¬¿ÕÏÐÊ±ÎªµÍ
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge; //µÚ1¸ö±ßÑØÓÐÐ§£¬ÉÏÉýÑØÎª²ÉÑùÊ±¿Ì
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft; //NSSÐÅºÅÓÉÈí¼þ²úÉú
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_8; //8·ÖÆµ£¬9MHz
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB; //¸ßÎ»ÔÚÇ°
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(SPI1, &SPI_InitStructure);
SPI_Cmd(SPI1, ENABLE);//Ê¹ÄÜ SPI1
PrintString("\r\n SPI1 ³õÊ¼»¯Íê³É£¡");
}
uint8_t SPI_RW(uint8_t data)
{
while(SPI_I2S_GetFlagStatus(SPI1,SPI_I2S_FLAG_TXE) == RESET);
SPI_I2S_SendData(SPI1,data);
while(SPI_I2S_GetFlagStatus(SPI1,SPI_I2S_FLAG_RXNE) == RESET);
return SPI_I2S_ReceiveData(SPI1);
}
uint8_t NRF_Write_Reg(uint8_t reg,uint8_t value)
{
uint8_t status;
NRF_CSN_L;
status = SPI_RW(reg);
SPI_RW(value);
NRF_CSN_H;
return status;
}
uint8_t NRF_Read_Reg(uint8_t reg)
{
uint8_t reg_val;
NRF_CSN_L;
SPI_RW(reg);
reg_val = SPI_RW(0);
NRF_CSN_H;
return reg_val;
}
uint8_t NRF_Write_Buf(uint8_t reg,uint8_t *pBuf,uint8_t uchars)
{
uint8_t i;
uint8_t status;
NRF_CSN_L;
status = SPI_RW(reg);
for(i=0;i<uchars;i++)
{
SPI_RW(pBuf[i]);
}
NRF_CSN_H;
return status;
}
uint8_t NRF_Read_Buff(uint8_t reg,uint8_t *pBuf,uint8_t uchars)
{
uint8_t i;
uint8_t status;
NRF_CSN_L;
status = SPI_RW(reg);
for(i=0;i<uchars;i++)
{
pBuf[i] = SPI_RW(0);
}
NRF_CSN_H;
return status;
}
uint8_t NRF24L01_RXDATA[32];
uint8_t NRF34L01_TXDATA[32];
static uint8_t TX_ADDRESS[5] = {0X1A,0X3B,0X5C,0X7D,0X9E};
static uint8_t RX_ADDRESS[5] = {0X1A,0X3B,0X5C,0X7D,0X9E};
#define TX 1
#define RX 2
void NRF24L01_Init(uint8_t Chanal,uint8_t Mode)
{
NRF_CE_L;
NRF_Write_Reg(FLUSH_TX,0xff);
NRF_Write_Reg(FLUSH_RX,0xff);
NRF_Write_Buf(NRF_WRITE_REG + TX_ADDR, TX_ADDRESS,5);
NRF_Write_Buf(NRF_WRITE_REG + RX_ADDR_P0,RX_ADDRESS,5);
NRF_Write_Reg(NRF_WRITE_REG + EN_AA, 0X01);
NRF_Write_Reg(NRF_WRITE_REG + EN_RXADDR, 0X01);
NRF_Write_Reg(NRF_WRITE_REG + SETUP_RETR,0X1A);
NRF_Write_Reg(NRF_WRITE_REG + RF_CH, Chanal);
NRF_Write_Reg(NRF_WRITE_REG + RX_PW_P0, 32);
NRF_Write_Reg(NRF_WRITE_REG + RF_SETUP,0X0F);
if(Mode == TX)
NRF_Write_Reg(NRF_WRITE_REG + CONFIG,0X0E);
else if(Mode == RX)
NRF_Write_Reg(NRF_WRITE_REG + CONFIG, 0X0F);
NRF_CE_H;
}
void uart_init()
{
GPIO_InitTypeDef gpio_usart;
USART_InitTypeDef usart;
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA | RCC_APB2Periph_USART1,ENABLE);
gpio_usart.GPIO_Pin = GPIO_Pin_9;
gpio_usart.GPIO_Speed = GPIO_Speed_50MHz;
gpio_usart.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA,&gpio_usart);
gpio_usart.GPIO_Pin = GPIO_Pin_10;
gpio_usart.GPIO_Speed = GPIO_Speed_50MHz;
gpio_usart.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOA,&gpio_usart);
usart.USART_BaudRate = 115200;
usart.USART_WordLength = USART_WordLength_8b;
usart.USART_StopBits = USART_StopBits_1;
usart.USART_Parity = USART_Parity_No;
usart.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
usart.USART_Mode = USART_Mode_Tx;
USART_Init(USART1,&usart);
USART_Cmd(USART1,ENABLE);
USART_ClearFlag(USART1,USART_FLAG_TC);
}
void nvic_init()
{
NVIC_InitTypeDef nvic;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
nvic.NVIC_IRQChannel = USART1_IRQn;
nvic.NVIC_IRQChannelPreemptionPriority = 0;
nvic.NVIC_IRQChannelSubPriority= 0;
nvic.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&nvic);
}
void NRF24L01_Check(void)
{
uint8_t buf[5];
uint8_t i;
NRF_Write_Buf(NRF_WRITE_REG + TX_ADDR,TX_ADDRESS,5);
NRF_Read_Buff(TX_ADDR,buf,5);
for(i=0;i<5;i++)
{
if(buf[i] != TX_ADDRESS[i])
break;
}
if(i == 5)
PrintString("\r\nNRF24L01 SUCCESS!");
else
PrintString("\r\nNRF24L01 ERROR!");
}
#define RX_DR 6
#define TX_DS 5
#define MAX_RT 4
#define TX_FULL 0
static void NRF24L01_Set_TX(void)
{
NRF_CE_L;
NRF_Write_Reg(NRF_WRITE_REG + CONFIG,0x0E);//·¢ËÍ
NRF_CE_H;
}
static void NRF24L01_Set_RX(void)
{
NRF_CE_L;
NRF_Write_Reg(NRF_WRITE_REG + CONFIG,0x0F);//½ÓÊÕ
NRF_CE_H;
}
void NRF_Send_TX(uint8_t *tx_buf, uint8_t len)
{
NRF24L01_Set_TX();
NRF_Write_Buf(WR_TX_PLOAD,tx_buf,len);
NRF_CE_H;
while(NRF_IRQ_Read);
uint8_t status = NRF_Read_Reg(NRF_READ_REG + NRFRegSTATUS);
NRF_Write_Reg(NRF_WRITE_REG + NRFRegSTATUS,status);
if(status & (1<< TX_FULL))
{
if(status & (1 << TX_FULL))
{
NRF_Write_Reg(FLUSH_TX,0xff);
}
}
if(status & (1 << TX_DS))
{
NRF24L01_Set_RX();
}
}
static uint8_t data[32] = {'
,'M','>'};
static void Delay(uint16_t n)
{
uint16_t i,j;
for(i=0 ; i<n;i++)
for(j=0;j<8500;j++);
}
int main()
{
Delay(5000);
uart_init();
nvic_init();
SPI1_Init();
NRF24L01_Init(40,TX);
NRF24L01_Check();
while(1)
{
PrintString("\r\ning");
NRF_Send_TX(data,32);
Delay(1000);
}
}
void USART1_IRQHandler(void)
{
if(USART1->SR & USART_SR_TC)
{
USART1->DR = a_temp;
while(USART_GetFlagStatus(USART1,USART_FLAG_TXE) == RESET);
USART1->CR1 &= ~USART_CR1_TXEIE;
}
}