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Code Issues Releases Activity

LP-602 better fix for USB IRQ lockup issue

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This commit is contained in:
Eric Price 2018-10-15 10:40:45 +02:00
parent 6ab58fe93d
commit 3f2d89fc11
1 changed files with 1 additions and 1 deletions
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2
flight/pios/stm32f4xx/libraries/STM32_USB_OTG_Driver/src/usb_dcd_int.c
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@ -681,7 +681,7 @@ static uint32_t DCD_WriteEmptyTxFifo(USB_OTG_CORE_HANDLE *pdev, uint32_t epnum)
}
// --- start fix
uint32_t fifoemptymsk;
if (len <= ep->maxpacket)
if (len < ep->maxpacket || ep->xfer_count==0)
{
// FIFO empty
fifoemptymsk = 0x1 << epnum;