A driver for the ILI9488 LCD controller which uses the STM32 HAL libraries. This driver was written and tested on a STM32L476xx development board.
This repo contains the driver itself, as well as a couple of sample bitmaps, and a font file. Copy the .c, and .h files to their respective directories in your project.
- A sample main.c file is included to demonstrate initialising the LCD and basic functions.
- img2hex.py is a simple script that will convert a .png file to HEX values represented as ASCII which can then be copied in to your project as an array. See the bitmaps.h file for an example.
- bitmaps.h contains a couple of sample images but is not required by the driver.
- font.h IS required by the driver.
- The SPI port (if used) should be initialised by your main.c file, and declared as
extern SPI_HandleTypeDef hspixin the ILI9488.h file. - Change the CS, D/C, and RES pins in the ILI9488.h file to suit your project.
- Parallel IO pins should be initialised in your main.c file, and then updated in the ILI9488.h file.
- Serial (SPI), or parallel communication can be selected with a flag in the ILI9488.h file. (TODO: Parallel comms currently don't work)
- Portrait or Landscape orientation can be selected with a flag in the ILI9488.h file.
- This implementation uses a memory buffer to speed up SPI communication. You might need to chance the size of the buffer in ILI9488.c depending on your MPU.
- Currently the project only writes in serial (SPI). Eventually you will be able to select either serial or parallel communication.
- There is an occasional error where images draw in the wrong location and I don't know why.
- Images which overlap the edge of the display become distorted (the memory location wraps around). Include a check that the image isn't outside the display area.