Crate ufmt_stdio

Minimal printing facilities for ufmt

Supported platforms:

• wasm via wasm-bindings;
• mos microprocessors via linking putchar;
• riscv32 via esp-* features (see details in Features section) or being no-op otherwise;
• All other platforms are built upon standard C library write function.

Features

• esp-uart - Enables UART writer on riscv32 targets. Mutually exclusive with esp-jtag. Requires user to provide symbols:
  • ESP_UART_ADDR (e.g. on ESP32-C3 it is #[no_mangle] static ESP_UART_ADDR: usize = 0x40000068).
• esp-jtag - Enables JTAG writer on riscv32 targets. Mutually exclusive with esp-jtag. Requires user to provide symbols:
  • SERIAL_JTAG_FIFO_REG (e.g. on ESP32-C3 it is #[no_mangle] static SERIAL_JTAG_FIFO_REG: usize = 0x60043000)
  • SERIAL_JTAG_CONF_REG (e.g. on ESP32-C3 it is #[no_mangle] static SERIAL_JTAG_CONF_REG: usize = 0x60043004).

Re-exports

pub extern crate ufmt;

Macros

d_print

Prints to the stdout in debug mode only

d_println

Prints to the stdout with newline in debug mode only

eprint

Prints to the stderr

eprintln

Prints to the stderr with newline

print

Prints to the stdout

println

Prints to the stdout with newline

uwrite

uwriteln

Structs

Stderr

Stderr wrapper

Stdout

Stdout wrapper

Traits

uDebug

Just like core::fmt::Debug

uDisplay

Just like core::fmt::Display

uWrite

A collection of methods that are required / used to format a message into a stream.

Functions

init

Initializes runtime, when necessary.