nordic-dev.net/embassy
2
0
Fork 0
mirror of https://github.com/embassy-rs/embassy.git synced 2025-02-16 08:53:17 +00:00
Code Issues Packages Projects Releases Wiki Activity

Merge pull request #2825 from MaxiluxSystems/fix/adc-blocking-delay-overflow

Browse Source 
stm32: adc: fix blocking_delay_us() overflowing when sys freq is high
This commit is contained in:
Dario Nieuwenhuis 2024-04-16 14:22:39 +00:00 committed by GitHub
commit b3710a31f0
No known key found for this signature in database
GPG Key ID: B5690EEEBB952194
1 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
embassy-stm32/src/adc/mod.rs
View File

@ -76,7 +76,12 @@ pub(crate) fn blocking_delay_us(us: u32) {
#[cfg(time)]
embassy_time::block_for(embassy_time::Duration::from_micros(us));
#[cfg(not(time))]
cortex_m::asm::delay(unsafe { crate::rcc::get_freqs() }.sys.unwrap().0 * us / 1_000_000);
{
let freq = unsafe { crate::rcc::get_freqs() }.sys.unwrap().0 as u64;
let us = us as u64;
let cycles = freq * us / 1_000_000;
cortex_m::asm::delay(cycles as u32);
}
}
/// ADC instance.