2025年st7735s驱动详解（st7549驱动）

科技前沿 • 2025-06-10 19:21 • 阅读 30

大家好，我是讯享网，很高兴认识大家。

无效 ST25DV_Init（void）

{

GPIO_InitTypeDef GPIO_InitStructure;

I2C_InitTypeDef I2C_InitStructure;

NVIC_InitTypeDef NVIC_InitStruct;

SystemClock_Config（）;

RCC_APB2PeriphClockCmd（RCC_APB2Periph_GPIOB，启用）;

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;

GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_OD;

GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

GPIO_Init（GPIOB， &GPIO_InitStructure）;

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;

GPIO_Init（GPIOB， &GPIO_InitStructure）;

RCC_APB1PeriphClockCmd（RCC_APB1Periph_I2C2，启用）;

I2C_InitStructure.I2C_模式 = I2C_Mode_I2C;

I2C_InitStructure.I2C_ClockSpeed = ;

I2C_InitStructure.I2C_占空比 = I2C_DutyCycle_2;

I2C_InitStructure.I2C_Ack = I2C_Ack_Enable;

I2C_InitStructure.I2C_AcknowledgedAddress = I2C_AcknowledgedAddress_7bit;

I2C_InitStructure.I2C_OwnAddress1 = 0x00;

I2C_Init（I2C2， &I2C_InitStructure）;

I2C_Cmd（I2C2，启用）;

NVIC_InitStruct.NVIC_IRQChannel = EXTI2_IRQn |EXTI3_IRQn;

NVIC_InitStruct.NVIC_IRQChannelPreemptionPriority = 0;

NVIC_InitStruct.NVIC_IRQChannelSubPriority = 0;

NVIC_InitStruct.NVIC_IRQChannelCmd = 启用;

NVIC_Init（&NVIC_InitStruct）;

}

void ANT7_T_ST25DV64KC_WriteReg（uint16_t RegAddress， uint8_t Data）

{

I2C_GenerateSTART（I2C2，启用）;

while （！I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_MODE_SELECT））;

I2C_Send7bitAddress（I2C2， ANT7_T_ST25DV64KC_ADDRESS， I2C_Direction_Transmitter）;

while （！I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED））;

I2C_SendData（I2C2，（uint8_t）（RegAddress >> 8））;

while （！I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_BYTE_TRANSMITTING））;

I2C_SendData（I2C2，（uint8_t）（RegAddress & 0xFF））;

while （！I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_BYTE_TRANSMITTING））;

I2C_SendData（I2C2，数据）;

while （！I2C_CheckEvent（I2C2， I2C_EVENT_MASTER_BYTE_TRANSMITTED））;

I2C_GenerateSTOP（I2C2，启用）;

}

uint8_t ANT7_T_ST25DV64KC_ReadReg（uint16_t RegAddress）

{

uint8_t 数据;

I2C_GenerateSTART（I2C2，启用）;

    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_MODE_SELECT));

    I2C_Send7bitAddress(I2C2, ANT7_T_ST25DV64KC_ADDRESS, I2C_Direction_Transmitter);

    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_TRANSMITTER_MODE_SELECTED));

  I2C_SendData(I2C2, (uint8_t)(RegAddress >> 8));

    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED));

    I2C_SendData(I2C2, (uint8_t)(RegAddress & 0xFF));  

    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_TRANSMITTED));

    I2C_GenerateSTART(I2C2, ENABLE);

    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_MODE_SELECT));

    I2C_Send7bitAddress(I2C2, ANT7_T_ST25DV64KC_ADDRESS, I2C_Direction_Receiver);

    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_RECEIVER_MODE_SELECTED));

    I2C_AcknowledgeConfig(I2C2, DISABLE);

    I2C_GenerateSTOP(I2C2, ENABLE);

    while (!I2C_CheckEvent(I2C2, I2C_EVENT_MASTER_BYTE_RECEIVED));

    Data = I2C_ReceiveData(I2C2);

    I2C_AcknowledgeConfig(I2C2, ENABLE);

    return Data;

}

讯享网

2025年st7735s驱动详解（st7549驱动）

相关推荐