This is a P8X32A/Propeller, P2X8C4M64P/Propeller 2 driver object for Sitronix ST77xx-based TFT-LCD displays
IMPORTANT: This software is meant to be used with the spin-standard-library (P8X32A) or p2-spin-standard-library (P2X8C4M64P). Please install the applicable library first before attempting to use this code, otherwise you will be missing several files required to build the project.
- 4-wire SPI connection (CS, SCL, SDA, DC) at 20MHz (P1), 20MHz+ (P2).
- Optional RESET hardware pin support
- Integration with the generic bitmap graphics library
- Build-time choice of buffered or unbuffered display (P2 only; P1 is always bufferless)
- Display mirroring, rotation
- Control display visibility (independent of display RAM contents)
- Set subpixel order (RGB, BGR)
- Set color depth (see limitations below)
P1/SPIN1:
- spin-standard-library
- P1/SPIN1: 1 extra core/cog for the PASM SPI engine
- graphics.common.spinh (provided by spin-standard-library)
P2/SPIN2:
- p2-spin-standard-library
- graphics.common.spin2h (provided by p2-spin-standard-library)
| Processor | Language | Compiler | Backend | Status |
|---|---|---|---|---|
| P1 | SPIN1 | FlexSpin (6.8.0) | Bytecode | OK |
| P1 | SPIN1 | FlexSpin (6.8.0) | Native/PASM | OK |
| P2 | SPIN2 | FlexSpin (6.8.0) | NuCode | OK (Untested) |
| P2 | SPIN2 | FlexSpin (6.8.0) | Native/PASM2 | OK |
(other versions or toolchains not listed are not supported, and may or may not work)
Tested with:
- ST7735R: Adafruit 1.44" (#2088), 128x128
- ST7789VW: Adafruit 1.3" (#4313), 240x240
- Reading from display not currently supported
- Buffered display mode isn't supported on the P1 due to memory constraints
- Color depths of 12, 16 or 18-bits can be set, but only 16bpp is currently actually supported