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780a02ef6c
- Do not hard code the number of the CAN interface to use. (This also allows specifying it via make command line / environment variable.) - Make less use of preprocessor and rely on compiler to eliminate dead branches and unused variables. Co-authored-by: crasbe <crasbe@gmail.com>
29 lines
777 B
Makefile
29 lines
777 B
Makefile
include ../Makefile.drivers_common
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FEATURES_OPTIONAL += periph_can
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USEMODULE += shell
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USEMODULE += can
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USEMODULE += isrpipe
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# The number of the CAN bus to use can be controlled via environment
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# variable CAN_DEV:
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CAN_DEV ?= 0
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CFLAGS += -DCONFIG_CAN_DEV=$(CAN_DEV)
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include $(RIOTBASE)/Makefile.include
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# Loop delay
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ifneq (,$(filter fdcan,$(USEMODULE)))
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ifneq (1,$(RIOT_CI_BUILD))
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# Check your CAN transceiver datasheet to apply the good loop delay in nanoseconds.
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# This configuration is mandatory if you are using CAN FD with bitrate switching.
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# Can be configured here or through Kconfig
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#CFLAGS += -DCONFIG_FDCAN_DEVICE_TRANSCEIVER_LOOP_DELAY=0
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# Allow only a default value for CI
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else
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CFLAGS += -DCONFIG_FDCAN_DEVICE_TRANSCEIVER_LOOP_DELAY=0
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endif
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endif
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