Macro dma_descriptors

macro_rules! dma_descriptors {
    ($rx_size:expr, $tx_size:expr) => { ... };
    ($size:expr) => { ... };
}

Available on crate feature unstable only.

Convenience macro to create DMA descriptors.

Usage

use esp_hal::dma_descriptors;

// Create RX and TX descriptors for transactions up to 32000 bytes - passing
// only one parameter assumes RX and TX are the same size.
let (rx_descriptors, tx_descriptors) = dma_descriptors!(32000, 32000);