diff options
Diffstat (limited to 'usbh/src/pipe.rs')
| -rw-r--r-- | usbh/src/pipe.rs | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/usbh/src/pipe.rs b/usbh/src/pipe.rs index abdba2a..80ebe11 100644 --- a/usbh/src/pipe.rs +++ b/usbh/src/pipe.rs @@ -321,9 +321,9 @@ impl Pipe<'_, '_> { ep.out_toggle, ); if self.regs.status.read().dtgl().bit_is_set() { - self.dtgl_clear(); - } else { self.dtgl_set(); + } else { + self.dtgl_clear(); } if token == PToken::In { ep.in_toggle = self.regs.status.read().dtgl().bit_is_set() @@ -377,6 +377,13 @@ impl Pipe<'_, '_> { last_err = e; match last_err { PipeErr::DataToggle => self.dtgl(ep, token), + + // Flow error on interrupt pipes means we got + // a NAK, which in this context means there's + // no data. cf ยง32.8.7.5 of SAM D21 data + // sheet. + PipeErr::Flow if ep.transfer_type == TransferType::Interrupt => break, + PipeErr::Stall => break, _ => { naks += 1; |