cc1101怎么编程序

时间:2025-01-29 19:33:52 单机游戏

CC1101是一款无线通信芯片,通常通过SPI(串行外设接口)与微控制器(MCU)进行通信。以下是一个基于STM32微控制器的CC1101编程的基本步骤和示例代码:

1. 初始化SPI和GPIO

首先,需要配置SPI和GPIO引脚。以下是一个示例代码,展示如何在STM32F103微控制器上初始化SPI1接口和GPIOB引脚:

```c

include "stm32f10x.h"

void GPIO_Configuration(void)

{

GPIO_InitTypeDef GPIO_InitStruct;

// Enable GPIOB clock

RCC->APB2ENR |= (1 << 2);

// Configure GPIOB Pin 0 and 1 as SPI MOSI and MISO

GPIO_InitStruct.Pin = GPIO_PIN_0 | GPIO_PIN_1;

GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;

GPIO_InitStruct.Pull = GPIO_PULLUP;

GPIO_InitStruct.Speed = GPIO_SPEED_FAST;

GPIO_InitStruct.Alternate = GPIO_AF_SPI1;

GPIO_Init(GPIOB, &GPIO_InitStruct);

}

void SPI_Configuration(void)

{

SPI_InitTypeDef SPI_InitStruct;

// Enable SPI1 clock

RCC->APB2ENR |= (1 << 12);

// Configure SPI1

SPI_InitStruct.SPI_Mode = SPI_MODE_MASTER;

SPI_InitStruct.SPI_Direction = SPI_DIRECTION_2;

SPI_InitStruct.SPI_DataSize = SPI_DATASIZE_8BIT;

SPI_InitStruct.SPI_CPOL = SPI_CPOL_LOW;

SPI_InitStruct.SPI_CPHA = SPI_CPHA_1ST_EDGE;

SPI_InitStruct.SPI_NSS = SPI_NSS_SOFT;

SPI_InitStruct.SPI_BaudRatePrescaler = SPI_BAUDRATEPRESCALER_2;

SPI_InitStruct.SPI_FirstBit = SPI_FIRSTBIT_MSB;

SPI_InitStruct.SPI_CRCPolynomial = 7;

SPI_Init(SPI1, &SPI_InitStruct);

}

```

2. 初始化CC1101

接下来,需要初始化CC1101芯片。以下是一个示例代码,展示如何初始化CC1101并设置其工作模式:

```c

include "stm32f10x.h"

void CC1101_Init(SPI_HandleTypeDef *hspi)

{

// Reset CC1101

CC1101Reset(hspi);

// Initialize CC1101

CC1101Init(hspi);

// Set SPI clock rate to 2 MHz (16 MHz / 8)

SPI_SetBaudRate(hspi, 2000000);

// Set CS pin high

HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, GPIO_PIN_SET);

}

```

3. 读写寄存器

CC1101的寄存器可以通过SPI接口进行读写。以下是一个示例代码,展示如何读取和写入寄存器:

```c

include "stm32f10x.h"

void CC1101_WriteReg(SPI_HandleTypeDef *hspi, uint8_t reg, uint8_t value)

{

// Write address

SPI_TransmitData(hspi, reg);

// Write value

SPI_TransmitData(hspi, value);

}

uint8_t CC1101_ReadReg(SPI_HandleTypeDef *hspi, uint8_t reg)

{

uint8_t value;

// Write address

SPI_TransmitData(hspi, reg | 0x80);

// Read value

value = SPI_ReceiveData(hspi);

return value;

}

```

4. 示例程序