题目

配置

注意事项

复制LCD的工程，先配置资源 --- 勾选完选项一定要再看一眼，可能选择错误

ADC：配置ADC2_IN15，对应PB15引脚

EEROM，配置PB6和PB7

按键 输入模式PB0、PB1、PB2、PA0

LED 一定要使能PD2

PWM互补输出，用TIM15

TIM6 - 10ms基准定时器

---

代码 - 默写大师

先默写几个函数

EEPROM读写函数

随机地址读函数 - 参考手册的时序

uint8_t EEPROM_ReadByte(uint8_t address)
{
	uint8_t data;
	I2CStart();
	I2CSendByte(0xA0);		// address + write
	I2CWaitAck();
	I2CSendByte(address);
	I2CWaitAck();
	I2CStop();
	
	I2CStart();
	I2CSendByte(0xA1);		// address + read
	I2CWaitAck();
	data = I2CReceiveByte();
	I2CSendNotAck();
	I2CStop();
	return data;
}

void EEPROM_WriteByte(uint8_t address, uint8_t data)
{
    I2CStart();
    I2CSendByte(0xA0);
    I2CWaitAck();
    I2CSendByte(address);
    I2CWaitAck();
    
    I2CSendByte(data);
    I2CWaitAck();
    I2CStop();
}

定义几个结构体

//-----------------------
void power_init(void);
void LCD_Disp(void);
void Key_Proc(void);
void ADC_Proc(void);
void PWM_Proc(void);

//-----------------------
struct Tick{
    uint32_t lcd;
    uint32_t key;
    uint32_t adc;
    uint32_t pwm;
};
extern struct Tick tick;

struct Flag{
    bool PWM_Mode;
    uint8_t LCD_View;
};
extern struct Flag flag;

struct Param{
    double ADC;
    
    uint16_t PWM_Frq;       //频率
    uint8_t  PWM_Duty_PA9;
    uint8_t  PWM_Duty_PA14;
};
extern struct Param param;

//定义变量
struct Tick tick;
struct Flag flag;
struct Param param;
struct Keys key;

LED驱动函数

void LED_Disp(uint8_t state)
{
    HAL_GPIO_WritePin(GPIOC, 0xFF00, GPIO_PIN_SET); //0ff
    HAL_GPIO_WritePin(GPIOC, state << 8, GPIO_PIN_RESET);
    HAL_GPIO_WritePin(GPIOD, GPIO_PIN_2, GPIO_PIN_SET);
    HAL_GPIO_WritePin(GPIOD, GPIO_PIN_2, GPIO_PIN_RESET);
}