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SN32: Fixed USB sending errors under certain conditions #371

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merged 1 commit into from
Jul 17, 2023
Merged

SN32: Fixed USB sending errors under certain conditions #371

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6 changes: 6 additions & 0 deletions os/hal/ports/SN32/LLD/SN32F2xx/USB/hal_usb_lld.c
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Original file line number Diff line number Diff line change
Expand Up @@ -331,6 +331,12 @@ void usb_serve_endpoints(USBDriver* usbp, usbep_t ep, bool in) {
/* IN endpoint, transmission.*/
USBInEndpointState *isp = epcp->in_state;

if (isp->txcnt >= isp->txsize) {
/* Transfer completed, invokes the callback.*/
_usb_isr_invoke_in_cb(usbp, ep);
return;
}

isp->txcnt += isp->txlast;
n = isp->txsize - isp->txcnt;

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