f407ve + FSMC + otm8009a

[Viacheslav]

Hello!

Hello! I want to write my display driver for uGFX
My display on the microcontroller otm8009a is connected via a 16 bit parallel bus to stm32f407ve via FSMC.
Using the cube, I generated the FSMC initialization code.
I have addresses in the memory of the microcontroller:

#define LCD_REG     0x60000000
#define LCD_DATA    0x6007FFFE

I wrote the initialization of the display controller and in the end I have a working functions like:

void LCD_DrawPoint(uint16_t x, uint16_t y, uint16_t color)  //color in RGB565
{
    LCD_SetWindows(x, y, x, y); 
    LCD_DATA = Color;
}

void LCD_Clear(uint16_t Color)
{
    unsigned int i;
    uint32_t total_point = width * height;
    LCD_SetWindows(0, 0, width - 1, height - 1);
    for(i = 0; i < total_point; i++)
    {
        LCD_DATA = Color;
    }
}

Help me please understand how I should write a driver for uGFX.

[Joel Bodenmann]

Hi,

The best way to get started is by reading the corresponding wiki article: https://wiki.ugfx.io/index.php/Display_Driver_Model
You might also want to take a look at the countless examples in for of existing drivers which you can find in the /drivers directory in the library.

If you have any specific questions you can always ask here on the forum - we're happy to help where we can.

[Viacheslav]

As a novice programmer, it was hard for me to figure out how to write a driver. As a result, I managed to write a driver and my display came to life with new colors. Now I will take the time to put the driver code in order and implement additional functions. I would also like to share the driver for this display. What is the best way to do this?

Thanks for the great graphics library!

Edited September 3, 2019 by Viacheslav

[inmarket]

The easiest way is to attach the driver as a zip file to this forum thread. If you wish you can also create a pull request on the main uGFX git repository.  

[Joel Bodenmann]

nice. happy to hear that you got it working - good job!

[Viacheslav]

Thank!
This is tested and works for me.
Maybe I didn’t figure it out completely and something needs to be rewritten or added.
I will be waiting for your comments.

forum_ugfx_otm8009a.zip

[Joel Bodenmann]

Glad to hear that you got it working - Thanks for sharing with the community!