I finally got the display I bought on eBay to work. It took me a lot of hours as the man I’d bought the display from told me that the display controller was an ILI9320, so I started making code for the display like it was using an ILI9320 controller.
But as it didn’t work, I started debugging using my Raisonance RLink, and just when I looked at the Device variable – a variable which holds the controller number, and is loaded at the initialization process of the display, it showed me that it was an SSD2119 controller.
So I found the SSD2119 datasheet and started recoding using the new Command calls found in the datasheet… Finally it worked and showed some life
So right now I have a working SSD2119 code with SetPixel, Text, Circle, Rectangle, Fill and some working Touch Screen commands for the onboard ADS7843 touch screen controller.
Please take a look at this image to see the display in action:
SSD2119 from top
SSD2119 Pringles example
The current GUI commands I’ve made is:
void Lcd_Text(u16 x, u16 y, u8 *str, u16 len,u16 Color, u16 bkColor);
void Lcd_Line(u16 x0, u16 y0, u16 x1, u16 y1,u16 color);
void Lcd_Circle(u16 cx,u16 cy,u16 r,u16 color,u8 fill);
void Lcd_Rectangle(u16 x0, u16 y0, u16 x1, u16 y1,u16 color,u8 fill); // Slower than Lcd_ColorBox
void Lcd_Square(u16 x0, u16 y0, u16 width, u16 color,u8 fill);
void Lcd_ClearCharBox(u16 x,u16 y,u16 color);
void Get320240PictureCode(u8* pBuffer,u32 BufferCounter,u32 BaseAddr);
void Lcd_FastRectangle(u16 x0, u16 y0, u16 x1, u16 y1,u16 color,u8 fill); // Faster than Lcd_Rectangle
void Lcd_FastSquare(u16 x0, u16 y0, u16 width, u16 color,u8 fill); // Faster than Lcd_Rectangle
void Lcd_FastClearCharBox(u16 x,u16 y,u16 color);
void DispPic320_240(const unsigned char *str);
void DispPic(u16 x0, u16 y0, const unsigned char *str);
DispPic320_240 and DispPic uses a byte array to show a image – the byte array is converted from a 24-bit .BMP (bitmap) file using a program I’ve made in Visual Basic .NET!
You can download the STM32 code for a Paint Demo application I’ve made here: SSD2119_PaintDemo
OBS.: The project files in there is for Ride7, but the code can be used together with ARM-GCC