【AT-START-F405测评】--4.点亮OLED

void oled_gpio_init(void)

{

    gpio_init_type gpio_init_struct;



    /* enable the led clock */

    crm_periph_clock_enable(CRM_GPIOB_PERIPH_CLOCK, TRUE);



    /* set default parameter */

    gpio_default_para_init(&gpio_init_struct);



    /* configure the led gpio */

    gpio_init_struct.gpio_drive_strength = GPIO_DRIVE_STRENGTH_STRONGER;

    gpio_init_struct.gpio_out_type  = GPIO_OUTPUT_PUSH_PULL;

    gpio_init_struct.gpio_mode = GPIO_MODE_OUTPUT;

    gpio_init_struct.gpio_pins =  OLED_SCLK_Pin|OLED_SDIN_Pin; 

    gpio_init_struct.gpio_pull = GPIO_PULL_NONE;

    gpio_init(OLED_SDIN_GPIO_Port, &gpio_init_struct);



    

}

/**********************************************

// IIC Write Command

**********************************************/

void Write_IIC_Command(uint8_t IIC_Command)

{

    IIC_Start();

    Write_IIC_Byte(0x78);            //Slave address,SA0=0

    IIC_Wait_Ack();        

    Write_IIC_Byte(0x00);                        //write command

    IIC_Wait_Ack();        

    Write_IIC_Byte(IIC_Command); 

    IIC_Wait_Ack();        

    IIC_Stop();

}

/**********************************************

// IIC Write Data

**********************************************/

void Write_IIC_Data(uint8_t IIC_Data)

{

    IIC_Start();

    Write_IIC_Byte(0x78);                        //D/C#=0; R/W#=0

    IIC_Wait_Ack();        

    Write_IIC_Byte(0x40);                        //write data

    IIC_Wait_Ack();        

    Write_IIC_Byte(IIC_Data);

    IIC_Wait_Ack();        

    IIC_Stop();

}

void OLED_WR_Byte(unsigned dat,unsigned cmd)

{

    if(cmd)

    {

        Write_IIC_Data(dat);  

    }

    else 

    {

        Write_IIC_Command(dat);                

    }

}

//初始化SSD1306                                            

void OLED_Init(void)

{         

    

    oled_gpio_init();



    delay_sec(1);

    OLED_WR_Byte(0xAE,OLED_CMD);//--display off

    OLED_WR_Byte(0x02,OLED_CMD);//---set low column address

    OLED_WR_Byte(0x10,OLED_CMD);//---set high column address

    OLED_WR_Byte(0x40,OLED_CMD);//--set start line address  

    OLED_WR_Byte(0xB0,OLED_CMD);//--set page address

    OLED_WR_Byte(0x81,OLED_CMD); // contract control

    OLED_WR_Byte(0xFF,OLED_CMD);//--128   

    OLED_WR_Byte(0xA1,OLED_CMD);//set segment remap //--Set SEG/Column Mapping     0xa0左右反置 0xa1正常

    OLED_WR_Byte(0xA6,OLED_CMD);//--normal / reverse

    OLED_WR_Byte(0xA8,OLED_CMD);//--set multiplex ratio(1 to 64)

    OLED_WR_Byte(0x3F,OLED_CMD);//--1/32 duty

    OLED_WR_Byte(0xC0,OLED_CMD);//Com scan direction//Set COM/Row Scan Direction   0xc0上下反置 0xc8正常

    OLED_WR_Byte(0xD3,OLED_CMD);//-set display offset

    OLED_WR_Byte(0x00,OLED_CMD);//

    

    OLED_WR_Byte(0xD5,OLED_CMD);//set osc division

    OLED_WR_Byte(0x80,OLED_CMD);//

    

    OLED_WR_Byte(0xD8,OLED_CMD);//set area color mode off

    OLED_WR_Byte(0x05,OLED_CMD);//

    

    OLED_WR_Byte(0xD9,OLED_CMD);//Set Pre-Charge Period

    OLED_WR_Byte(0xF1,OLED_CMD);//

    

    OLED_WR_Byte(0xDA,OLED_CMD);//set com pin configuartion

    OLED_WR_Byte(0x12,OLED_CMD);//

    

    OLED_WR_Byte(0xDB,OLED_CMD);//set Vcomh

    OLED_WR_Byte(0x30,OLED_CMD);//

    

    OLED_WR_Byte(0x8D,OLED_CMD);//set charge pump enable

    OLED_WR_Byte(0x14,OLED_CMD);//

    

    OLED_WR_Byte(0xAF,OLED_CMD);//--turn on oled panel

} 

int main(void)

{

    system_clock_config();

    at32_board_init();

    uart_print_init(115200);



    /* output a message on hyperterminal using printf function */

    printf("usart printf example: retarget the c library printf function to the usart\r\n");

        

    

    OLED_Init();

    OLED_Clear();

    OLED_ShowStringCN(0,0,"雅特力 & 21ic",1);

    OLED_ShowStringCN(0,16,"AT-START-F405",1);

        OLED_ShowStringCN(0,32,"bbs.21ic.com/",1);

    OLED_Refresh();    

        

    while(1)

    {

        printf("usart printf counter: %u\r\n",time_cnt++);

        delay_sec(1);

    }

}