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makefiles/tools/serial.inc.mk: Use TTY_BOARD_FILTER

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When `MOST_RECENT_PORT` is set to `1`, the most recently added USB
serial is selected. This is a crude but surprisingly effective filter.
However, for the CC2560-Launchpad this doesn't work, as it provides
two USB serials. The first USB serial interface is the targeted UART
bridge and the second controls the debugger. Since the second is added
a tiny fraction after the first, this reliably selects the wrong
interface. Allowing the board to filter USB serials first can avoid
this issue.

This is also useful as e.g. an STM Nucleo board can easily be told
apart from an `samr21-xpro` or an nRF52840dk using such filters.
This commit is contained in:
Marian Buschsieweke 2022-06-03 19:03:22 +02:00
parent 22aed458d5
commit e706468a5a
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1 changed files with 2 additions and 1 deletions
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makefiles/tools/serial.inc.mk
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@ -1,6 +1,7 @@
# Select the most recently attached tty interface
ifeq (1,$(MOST_RECENT_PORT))
PORT ?= $(shell $(RIOTTOOLS)/usb-serial/ttys.py --most-recent --format path)
TTYS_FLAGS := --most-recent --format path $(TTY_BOARD_FILTER)
PORT ?= $(shell $(RIOTTOOLS)/usb-serial/ttys.py $(TTYS_FLAGS))
endif
# Otherwise, use as default the most commonly used ports on Linux and OSX
PORT_LINUX ?= /dev/ttyACM0