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stm32/i2c: allow empty transfers with async api

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This commit is contained in:
Sam Lakerveld
2022-01-25 16:28:49 +01:00
parent 917b0ea9b1
commit 3fc54236ea
2 changed files with 26 additions and 8 deletions
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4
embassy-stm32/src/dma/mod.rs
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@ -130,7 +130,7 @@ mod transfers {
reg_addr: *mut W,
buf: &'a mut [W],
) -> impl Future<Output = ()> + 'a {
assert!(buf.len() <= 0xFFFF);
assert!(buf.len() > 0 && buf.len() <= 0xFFFF);
unborrow!(channel);
unsafe { channel.start_read::<W>(request, reg_addr, buf) };
@ -145,7 +145,7 @@ mod transfers {
buf: &'a [W],
reg_addr: *mut W,
) -> impl Future<Output = ()> + 'a {
assert!(buf.len() <= 0xFFFF);
assert!(buf.len() > 0 && buf.len() <= 0xFFFF);
unborrow!(channel);
unsafe { channel.start_write::<W>(request, buf, reg_addr) };