Trait st7735_async_low::spi::WriteU8 [−][src]
Defines how a single u8 is written with the SCK
and SDA
pins.
Common MCUs’ SPI peripheral can be used, with CPOL=1, CPHA=1 and MSB-first. Notice the timing requirement from ST7735’s datasheet. Most important ones:
SCK
low duration and high durations are at least 15ns long.SCK
period is at least 66ns long.