diff options
| author | Ayke van Laethem <[email protected]> | 2021-06-01 13:27:58 +0200 |
|---|---|---|
| committer | Ron Evans <[email protected]> | 2021-06-25 17:58:39 +0200 |
| commit | 96e863f0f37cef0e8f36cb0d5f1c94fe062bc03d (patch) | |
| tree | f4044fca721e0d1f58f64e7a312b6fb92215f64f /src/machine/board_metro-m4-airlift.go | |
| parent | 75298bb84bcb966998ca00f3cc5506a9757a5038 (diff) | |
| download | tinygo-96e863f0f37cef0e8f36cb0d5f1c94fe062bc03d.tar.gz tinygo-96e863f0f37cef0e8f36cb0d5f1c94fe062bc03d.zip | |
all: add a flag to the command line to select the serial implementation
This can be very useful for some purposes:
* It makes it possible to disable the UART in cases where it is not
needed or needs to be disabled to conserve power.
* It makes it possible to disable the serial output to reduce code
size, which may be important for some chips. Sometimes, a few kB can
be saved this way.
* It makes it possible to override the default, for example you might
want to use an actual UART to debug the USB-CDC implementation.
It also lowers the dependency on having machine.Serial defined, which is
often not defined when targeting a chip. Eventually, we might want to
make it possible to write `-target=nrf52` or `-target=atmega328p` for
example to target the chip itself with no board specific assumptions.
The defaults don't change. I checked this by running `make smoketest`
before and after and comparing the results.
Diffstat (limited to 'src/machine/board_metro-m4-airlift.go')
| -rw-r--r-- | src/machine/board_metro-m4-airlift.go | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/src/machine/board_metro-m4-airlift.go b/src/machine/board_metro-m4-airlift.go index 276defa92..4aa248150 100644 --- a/src/machine/board_metro-m4-airlift.go +++ b/src/machine/board_metro-m4-airlift.go @@ -41,8 +41,6 @@ const ( WS2812 = D40 ) -var Serial = USB - // USBCDC pins const ( USBCDC_DM_PIN = PA24 |