STM32 TLC6983寄存器例程

以下是一个基本的STM32 TLC6983寄存器例程，用于控制TLC6983 LED驱动芯片：

#include "stm32f4xx.h"

// 定义TLC6983寄存器地址
#define TLC6983_CONTROL_REG1 0x00
#define TLC6983_CONTROL_REG2 0x01
#define TLC6983_CONTROL_REG3 0x02
#define TLC6983_PWM_REG_BASE 0x03

// 定义TLC6983寄存器位域
#define TLC6983_LED_ON 0x10
#define TLC6983_LED_OFF 0x00
#define TLC6983_PWM_MAX 0x3FF

// 定义TLC6983控制寄存器的值
#define TLC6983_CONTROL_REG1_VALUE 0x00
#define TLC6983_CONTROL_REG2_VALUE 0x00
#define TLC6983_CONTROL_REG3_VALUE 0x00

// 初始化函数
void TLC6983_Init(void)
{
    // 初始化SPI接口
    // ...

    // 写入控制寄存器的值
    SPI_Write(TLC6983_CONTROL_REG1, TLC6983_CONTROL_REG1_VALUE);
    SPI_Write(TLC6983_CONTROL_REG2, TLC6983_CONTROL_REG2_VALUE);
    SPI_Write(TLC6983_CONTROL_REG3, TLC6983_CONTROL_REG3_VALUE);
}

// 设置LED亮度
void TLC6983_SetLED(uint8_t led_num, uint16_t pwm_value)
{
    // 计算PWM寄存器地址
    uint8_t pwm_reg_addr = TLC6983_PWM_REG_BASE + (led_num * 2);

    // 写入PWM值
    SPI_Write(pwm_reg_addr, (pwm_value >> 8) & 0xFF);
    SPI_Write(pwm_reg_addr + 1, pwm_value & 0xFF);
}

// 关闭所有LED
void TLC6983_TurnOffAllLEDs(void)
{
    // 写入所有PWM寄存器为0
    for (uint8_t i = 0; i < 16; i++)
    {
        TLC6983_SetLED(i, TLC6983_LED_OFF);
    }
}

需要根据具体的硬件接口和SPI通信方式进行修改。