diff options
| -rw-r--r-- | libmaple/usb/stm32f1/usb_cdcacm.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/libmaple/usb/stm32f1/usb_cdcacm.c b/libmaple/usb/stm32f1/usb_cdcacm.c index fc70e39..addab3c 100644 --- a/libmaple/usb/stm32f1/usb_cdcacm.c +++ b/libmaple/usb/stm32f1/usb_cdcacm.c @@ -535,6 +535,13 @@ static void vcomDataRxCb(void) { usb_copy_from_pma((uint8*)vcomBufferRx, n_unread_bytes, USB_CDCACM_RX_ADDR); + + if (n_unread_bytes == 0) { + usb_set_ep_rx_count(USB_CDCACM_RX_ENDP, USB_CDCACM_RX_EPSIZE); + usb_set_ep_rx_stat(USB_CDCACM_RX_ENDP, USB_EP_STAT_RX_VALID); + rx_offset = 0; + } + if (rx_hook) { rx_hook(USB_CDCACM_HOOK_RX, 0); } |