tuber/desk/libs/thirdparty/oled_ssd1327/i2c.c

#include "i2c.h"

I2C_HandleTypeDef hi2c2;


void MX_I2C1_Init(void)
{
    hi2c2.Instance = I2C2;
    hi2c2.Init.ClockSpeed = 100000;
    hi2c2.Init.DutyCycle = I2C_DUTYCYCLE_2;
    hi2c2.Init.OwnAddress1 = 0;
    hi2c2.Init.AddressingMode = I2C_ADDRESSINGMODE_7BIT;
    hi2c2.Init.DualAddressMode = I2C_DUALADDRESS_DISABLE;
    hi2c2.Init.OwnAddress2 = 0;
    hi2c2.Init.GeneralCallMode = I2C_GENERALCALL_DISABLE;
    hi2c2.Init.NoStretchMode = I2C_NOSTRETCH_DISABLE;
    HAL_I2C_Init(&hi2c2);
}


//
void HAL_I2C_MspInit(I2C_HandleTypeDef* i2cHandle)
{
    GPIO_InitTypeDef GPIO_InitStruct = {0};
  
    if(i2cHandle->Instance==I2C2)
    {
        __HAL_RCC_GPIOA_CLK_ENABLE();
        __HAL_RCC_GPIOC_CLK_ENABLE();
        
        GPIO_InitStruct.Pin = GPIO_PIN_8;
        GPIO_InitStruct.Mode = GPIO_MODE_AF_OD;
        GPIO_InitStruct.Pull = GPIO_PULLUP;
        GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
        GPIO_InitStruct.Alternate = GPIO_AF4_I2C2;
        HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
        
        GPIO_InitStruct.Pin = GPIO_PIN_4;
        GPIO_InitStruct.Alternate = GPIO_AF4_I2C2;
        HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
        
        __HAL_RCC_I2C2_CLK_ENABLE();
    }
}


void HAL_I2C_MspDeInit(I2C_HandleTypeDef* i2cHandle)
{
    if(i2cHandle->Instance==I2C1)
    {
        __HAL_RCC_I2C2_CLK_DISABLE();
        HAL_GPIO_DeInit(GPIOA, GPIO_PIN_8);
        HAL_GPIO_DeInit(GPIOC, GPIO_PIN_4);
    }
}