rp-pio-serial

support rp2040-hal & rp235x-hal

Test for

How to install

cargo add rp-pio-serial

How to use it in you project

# add to cargo.toml
# rp2040 is default-feature
rp-pio-serial = { version = "0.6.0" }
# rp2350
# rp-pio-serial = { version = "0.6.0", default-features = false, features = [ "rp2350"] }

//import it in main.rs
use rp_pio_serial::{
 pio_bprintln, pio_print, pio_println, DataBits, Parity, RpPioSerial, ServiceMode, StopBits,
 UartConfig,
};

Add to main func

 // PIO0 -> FunctionPio0
 let _tx_pin = pins.gpio10.into_function::<FunctionPio0>();
 let _rx_pin = pins.gpio9.into_function::<FunctionPio0>();
 //_rx_pin.into_push_pull_output_in_state(PinState::High); //设置高电平,给rx引脚
 // 演示"任意状态机组合":这里使用 SM2 / SM3
 let (mut pio0, sm0, sm1, _sm2, _sm3) = pac.PIO0.split(&mut pac.RESETS);
 let config = UartConfig {
 baud: 115_200u32,
 data_bits: DataBits::Eight,
 parity: Parity::None,
 stop_bits: StopBits::One,
 auto_echo: false,
 service_mode: ServiceMode::Polling,
 tx_pipeline_chars: 5,
 };
 let mut serial: RpPioSerial<PIO0, SM0, SM1, 512, 512> = RpPioSerial::new(
 &mut pio0,
 sm0, // TX SM
 sm1, // RX SM
 10, // TX pin
 9, // RX pin
 clocks.system_clock.freq().to_Hz(),
 config,
 )
 .unwrap();

//base use
 pio_println!(serial, "rp2040 PIO serial boot");
 loop {
 serial.poll()
 }

For example