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rp: add async flash

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Implement an async flash mode using the XIP background best effort
read interface.  Only reads are actually async, write and erase remain
blocking.
This commit is contained in:
Derek Hageman
2023-07-25 15:54:33 -06:00
parent e3cc0d168c
commit 7ed9e29326
6 changed files with 254 additions and 26 deletions
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4
examples/boot/application/rp/src/bin/a.rs
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@ -7,7 +7,7 @@ use core::cell::RefCell;
use defmt_rtt as _;
use embassy_boot_rp::*;
use embassy_executor::Spawner;
use embassy_rp::flash::Flash;
use embassy_rp::flash::{self, Flash};
use embassy_rp::gpio::{Level, Output};
use embassy_rp::watchdog::Watchdog;
use embassy_sync::blocking_mutex::Mutex;
@ -34,7 +34,7 @@ async fn main(_s: Spawner) {
let mut watchdog = Watchdog::new(p.WATCHDOG);
watchdog.start(Duration::from_secs(8));
let flash: Flash<_, FLASH_SIZE> = Flash::new(p.FLASH);
let flash = Flash::<_, flash::Blocking, FLASH_SIZE>::new(p.FLASH);
let flash = Mutex::new(RefCell::new(flash));
let config = FirmwareUpdaterConfig::from_linkerfile_blocking(&flash);