Plain C AVR library for ST7735 displays
Sebastian
4dcb901544
Merge pull request #1 from massey101/upstream-fixes
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2 months ago | |
|---|---|---|
| fonts | 2 years ago | |
| images | 2 years ago | |
| include | 2 months ago | |
| utils | 2 years ago | |
| .clang_complete | 2 years ago | |
| .gitignore | 2 years ago | |
| Makefile | 2 months ago | |
| README.md | 2 months ago | |
| main.c | 2 months ago | |
| spi.c | 2 years ago | |
| st7735.c | 2 months ago | |
| st7735_font.c | 2 years ago | |
| st7735_gfx.c | 2 years ago |
README.md
ST7735 for AVR
My simplified plain C version of https://github.com/adafruit/Adafruit-ST7735-Library and parts of https://github.com/adafruit/Adafruit-GFX-Library/
Use at your own risk!
Tweaks
By LongHairedHacker:
- Uses my own bitmap format for fullcolor and monochrome bitmaps
- Faster line drawing based on: https://github.com/adafruit/Adafruit-GFX-Library/pull/36
- Faster font rendering based on https://github.com/adafruit/Adafruit-GFX-Library/issues/69
- Refactored draw_char function that does not load glyph struct twice
By Massey101:
- Added support for bitmap clipping
- Added JAYCAR screen for XC4629 support
Usage
Connect the display to the following PINS:
JAYCAR screen and ATMEGA328: +--------+--------+ | Screen | AVR | +--------+--------+ | VCC | 5V | +--------+--------+ | GND | GND | +--------+--------+ | CS | PB2 | +--------+--------+ | RESET | PD7 | +--------+--------+ | A0 | PD6 | +--------+--------+ | SDA | PB3 | +--------+--------+ | SCK | PB5 | +--------+--------+ | LED | 3.3V | +--------+--------+
- Set the environment variables for:
AVRMCU- Your avr chipF_CPU- Your clock speedISPPORT- programming device
- Modify
include/st7735.h:st7735_typeto your screen. (I have no idea how to figure out which is which) - Run
make flash