nordic-dev.net/embassy
2
0
Fork 0
mirror of https://github.com/embassy-rs/embassy.git synced 2024-11-21 22:32:29 +00:00
Code Issues Packages Projects Releases Wiki Activity

rp: fix async spi read sometimes hanging.

Browse Source
This commit is contained in:
Dario Nieuwenhuis 2023-08-15 22:47:03 +02:00
parent 96e0ace89e
commit 46f671ae42
1 changed files with 3 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
embassy-rp/src/dma.rs
View File

@ -76,7 +76,8 @@ pub unsafe fn write<'a, C: Channel, W: Word>(
)
}
static DUMMY: u32 = 0;
// static mut so that this is allocated in RAM.
static mut DUMMY: u32 = 0;
pub unsafe fn write_repeated<'a, C: Channel, W: Word>(
ch: impl Peripheral<P = C> + 'a,
@ -86,7 +87,7 @@ pub unsafe fn write_repeated<'a, C: Channel, W: Word>(
) -> Transfer<'a, C> {
copy_inner(
ch,
&DUMMY as *const u32,
&mut DUMMY as *const u32,
to as *mut u32,
len,
W::size(),