Attribute Macro main

#[main]

Creates a new executor instance and declares an application entry point for RISC-V spawning the corresponding function body as an async task.

The following restrictions apply:

• The function must accept exactly 1 parameter, an embassy_executor::Spawner handle that it can use to spawn additional tasks.
• The function must be declared async.
• The function must not use generics.
• Only a single main task may be declared.

A user-defined entry macro can be optionally provided via the entry argument to override the default of riscv_rt::entry.

Examples

Spawning a task:

#[embassy_executor::main]
async fn main(_s: embassy_executor::Spawner) {
    // Function body
}

Spawning a task using a custom entry macro:

#[embassy_executor::main(entry = "esp_riscv_rt::entry")]
async fn main(_s: embassy_executor::Spawner) {
    // Function body
}