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Merge pull request #4113 from alexmoon/twim-ram-buffer

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Make the nrf Twim RAM buffer a instance variable instead of stack allocated
This commit is contained in:
Ulf Lilleengen
2025-04-30 11:40:40 +02:00
committed by GitHub
parent 1d2f0add77 fb7504c293
commit 5f0196cb29
3 changed files with 34 additions and 143 deletions
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4
examples/nrf52840/src/bin/twim.rs
View File

@@ -9,6 +9,7 @@ use defmt::*;
use embassy_executor::Spawner;
use embassy_nrf::twim::{self, Twim};
use embassy_nrf::{bind_interrupts, peripherals};
use static_cell::ConstStaticCell;
use {defmt_rtt as _, panic_probe as _};
const ADDRESS: u8 = 0x50;
@@ -22,7 +23,8 @@ async fn main(_spawner: Spawner) {
let p = embassy_nrf::init(Default::default());
info!("Initializing TWI...");
let config = twim::Config::default();
let mut twi = Twim::new(p.TWISPI0, Irqs, p.P0_03, p.P0_04, config);
static RAM_BUFFER: ConstStaticCell<[u8; 16]> = ConstStaticCell::new([0; 16]);
let mut twi = Twim::new(p.TWISPI0, Irqs, p.P0_03, p.P0_04, config, RAM_BUFFER.take());
info!("Reading...");

2
examples/nrf52840/src/bin/twim_lowpower.rs
View File

@@ -30,6 +30,7 @@ async fn main(_p: Spawner) {
loop {
info!("Initializing TWI...");
let config = twim::Config::default();
let mut ram_buffer = [0u8; 16];
// Create the TWIM instance with borrowed singletons, so they're not consumed.
let mut twi = Twim::new(
@@ -38,6 +39,7 @@ async fn main(_p: Spawner) {
p.P0_03.reborrow(),
p.P0_04.reborrow(),
config,
&mut ram_buffer,
);
info!("Reading...");