CH32-ST7735-Demo

Demo for ST7735 under CH32V307VCT6 using ch32-hal

Features

• SPI: communicate with ST7735, see struct DisplayManager.

let cs = p.PD4;
let (sck, sda) = (p.PB3, p.PB5);
let spi = Spi::new_blocking_txonly(p.SPI3, sck, sda, Default::default());

• PWM: control screen brightness, see struct BacklightManager.

let blk = p.PA15;
let pwm = SimplePwm::new(
    p.TIM2,
    Some(PwmPin::new_ch1::<1>(blk)),
    None,
    None,
    None,
    Hertz::khz(1),
    CountingMode::default(),
);

Description

This project is build via ch32-rs/ch32-hal-template.

This project is for CH32V307VCT6 only:

Board	Display	Display size
CH32V307VCT6	ST7735 (8 pins)	144 * 144

Driver the ST7735 to display rust logo (from sajattack/st7735-lcd-rs), with a brightness setting button (user button).

Usage

1. Install wlink tool.

2. Connect DuPont line.

On board (for USER button):

PA14 <---> KEY

From ST7735 to board:

ST7735	Board
GND	GND
VCC	3V3
SCL	PB3
SDA	PB5
RES	PB4
DC	PD3
CS	PD4
BLK	PA15

3. Customize config at src/constant.rs for your ST7735.

4. Run command:

cargo run --release
# or
make run

5. Press USER to switch brightness.

Discussion

Discussions at ch32-hal.

Special Thanks

• ch32-rs/ch32-hal: HAL implementation for CH32V307.
• sajattack/st7735-lcd-rs: ST7735 driver support.

License

MIT