[Qinheng RISC-V core CH582] I2C lights up the OLED screen

lugl4313820

[Qinheng RISC-V core CH582] I2C lights up the OLED screen [Copy link]

 

SSD1306 is an OLED driver chip with a maximum support of 128*64 pixels, and is widely used in driving small-size OLED displays. In particular, its low display power consumption makes it a good combination for wearable devices when combined with CH582M.

This time, analog I2C is used for driving. The SDA and SCL are configured as follows.

GPIOB_SetBits( GPIO_Pin_12 );
GPIOB_SetBits( GPIO_Pin_13 );
GPIOB_ModeCfg( GPIO_Pin_12, GPIO_ModeOut_PP_20mA ); //SDA
GPIOB_ModeCfg( GPIO_Pin_13, GPIO_ModeOut_PP_20mA ); //SLC

Then the driver is to modify my previous driver. In fact, there is a lot of information about SSD1306 on the Internet:

#define OLED_SCL_Clr() GPIOB_ResetBits(GPIO_Pin_13)//SCL
#define OLED_SCL_Set() GPIOB_SetBits(GPIO_Pin_13)

#define OLED_SDA_Clr() GPIOB_ResetBits(GPIO_Pin_12)//SDA
#define OLED_SDA_Set() GPIOB_SetBits(GPIO_Pin_12)

After modifying the above parameters, SSD1306 is successfully driven:

OLED_Init(); //Initialize OLED
OLED_ColorTurn(0);//0 normal display, 1 inverted color display
OLED_DisplayTurn(0);//0 normal display 1 screen flip display
OLED_Clear();
mDelaymS(800);
OLED_ShowString(8, 6, "Hello EEWORLD!", 16, 1);
OLED_ShowString(22, 26, "CH582M", 24, 1);
OLED_ShowNum(12, 52, 2022, 4, 12, 1);
OLED_ShowChinese(40,52,9,12,1);//12*12
OLED_ShowNum(54, 52, 2, 1, 12, 1);
OLED_ShowChinese(64,52,10,12,1);//12*12 Month
OLED_ShowNum(80, 52, 26, 2, 12, 1);
OLED_ShowChinese(94,52,2,12,1);//12*12 Day
OLED_Refresh();

The project files are uploaded as follows:

I2C-OLED.7z (168.22 KB, downloads: 114)

2022-2-26 08:08 上传

点击文件名下载附件

珏珲1

There seems to be a problem with the project file, and mrs compilation failed

lugl4313820

珏珲1 posted on 2023-1-8 16:56 There seems to be a problem with the project file, mrs compilation failed

You need to look at the reference path of the project and header files, etc. See what the error is and adjust it.

珏珲1

lugl4313820 posted on 2023-1-8 18:12 You need to check the reference path of the project and header files. Check the specific error and adjust it.

Solved, a few header files were missing, and the main file was replaced with other projects;

Also, it says that the definition of the function `TMR0_TimerInit' is not found, and CH58x_timer0.c is not compiled.

Refer to the big guy's post and right click to add it

珏珲1

Juehui1 posted on 2023-1-8 20:21

Now I want to display the value collected by ADC, but I haven't succeeded yet

lugl4313820

珏珲1 posted on 2023-1-8 20:23 Now I want to display the value collected by ADC, but it has not been successful

Come on, Qinheng’s products are very easy to use, affordable, and have good power consumption.