diff options
| -rw-r--r-- | shared/tinyusb/mp_usbd_cdc.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/shared/tinyusb/mp_usbd_cdc.c b/shared/tinyusb/mp_usbd_cdc.c index 674d6b089..63d015cb4 100644 --- a/shared/tinyusb/mp_usbd_cdc.c +++ b/shared/tinyusb/mp_usbd_cdc.c @@ -102,9 +102,9 @@ mp_uint_t mp_usbd_cdc_tx_strn(const char *str, mp_uint_t len) { n = CFG_TUD_CDC_EP_BUFSIZE; } if (tud_cdc_connected()) { - int timeout = 0; // If CDC port is connected but the buffer is full, wait for up to USC_CDC_TIMEOUT ms. - while (n > tud_cdc_write_available() && timeout++ < MICROPY_HW_USB_CDC_TX_TIMEOUT) { + mp_uint_t t0 = mp_hal_ticks_ms(); + while (n > tud_cdc_write_available() && (mp_uint_t)(mp_hal_ticks_ms() - t0) < MICROPY_HW_USB_CDC_TX_TIMEOUT) { mp_event_wait_ms(1); // Explicitly run the USB stack as the scheduler may be locked (eg we |