Crate imxrt_uart_panic

imxrt-uart-panic

This crate provides a UART based panic handler for i.MX RT.

Upon panic, it resets the given UART peripheral and writes an error message to it.

Usage Example

- examples are intended for the Teensy 4.0, Teensy 4.1 or Teensy MicroMod board -

#![no_std]
#![no_main]

use teensy4_bsp as bsp;

use bsp::pins::common::{P0, P1};
imxrt_uart_panic::register!(LPUART6, P1, P0, 115200);

#[bsp::rt::entry]
fn main() -> ! {
    panic!("Foo!");
}

panicked at examples\minimal.rs:11:5:
Foo!

Additionally, one can provide a custom panic action, such as teensy4_panic::sos, that will be executed after printing to UART:

#![no_std]
#![no_main]

use teensy4_bsp as bsp;

use bsp::pins::common::{P0, P1};
imxrt_uart_panic::register!(LPUART6, P1, P0, 115200, teensy4_panic::sos);

#[bsp::rt::entry]
fn main() -> ! {
    panic!("Foo!");
}

This crate is fully compatible with other previous usages of the given UART peripheral, although it might abort transmissions that are already in progress.

Macros

register

Registers the UART panic handler.