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stm32/otg: clear NAK bit on endpoint enable.

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This commit is contained in:
Dario Nieuwenhuis 2023-06-27 02:12:06 +02:00
parent 28fb492c40
commit a575e40a35
1 changed files with 2 additions and 1 deletions
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3
embassy-stm32/src/usb_otg/usb.rs
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@ -780,13 +780,14 @@ impl<'d, T: Instance> embassy_usb_driver::Bus for Bus<'d, T> {
// cancel transfer if active // cancel transfer if active
if !enabled && r.diepctl(ep_addr.index()).read().epena() { if !enabled && r.diepctl(ep_addr.index()).read().epena() {
r.diepctl(ep_addr.index()).modify(|w| { r.diepctl(ep_addr.index()).modify(|w| {
w.set_snak(true); w.set_snak(true); // set NAK
w.set_epdis(true); w.set_epdis(true);
}) })
} }
r.diepctl(ep_addr.index()).modify(|w| { r.diepctl(ep_addr.index()).modify(|w| {
w.set_usbaep(enabled); w.set_usbaep(enabled);
w.set_cnak(enabled); // clear NAK that might've been set by SNAK above.
}) })
}); });