diff options
| author | Daniel Gibson <metalcaedes@gmail.com> | 2021-01-05 13:48:43 +0100 |
|---|---|---|
| committer | Daniel Gibson <metalcaedes@gmail.com> | 2021-01-06 17:27:52 +0100 |
| commit | 8e823d276f939d79b2d323fad675fb8442a718c2 (patch) | |
| tree | 54af191c3614736bafc4ad66e9c3e4512403140e /cores/arduino/CDC.cpp | |
| parent | 60f0d0b125e06dbf57b800192c80e5f60d681438 (diff) | |
Allow disabling CDC with -DCDC_DISABLED
Sometimes Arduino-based USB devices don't work because some hardware
(like KVM switches) gets confused by the CDC sub-devices.
This change makes it relatively easy to disable CDC at compiletime.
Disabling it of course means that the serial console won't work anymore,
so you need to use the reset button when flashing.
CDC_DISABLED is also used in ArduinoCore-samd for the same purpose.
based on
https://github.com/gdsports/usb-metamorph/tree/master/USBSerPassThruLine
See also https://github.com/NicoHood/HID/issues/225 and
https://github.com/arduino/Arduino/issues/6387 and
https://forum.arduino.cc/index.php?topic=545288.msg3717028#msg3717028
Diffstat (limited to 'cores/arduino/CDC.cpp')
| -rw-r--r-- | cores/arduino/CDC.cpp | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/cores/arduino/CDC.cpp b/cores/arduino/CDC.cpp index 4ff6b9b..7d5afaa 100644 --- a/cores/arduino/CDC.cpp +++ b/cores/arduino/CDC.cpp @@ -22,6 +22,13 @@ #if defined(USBCON) +#ifndef CDC_ENABLED + +#warning "! Disabled serial console via USB (CDC)!" +#warning "! With this change you'll have to use the Arduino's reset button/pin to flash (upload)!" + +#else // CDC not disabled + typedef struct { u32 dwDTERate; @@ -299,4 +306,5 @@ int32_t Serial_::readBreak() { Serial_ Serial; +#endif /* if defined(CDC_ENABLED) */ #endif /* if defined(USBCON) */ |