diff options
| -rw-r--r-- | Teensy.mk | 15 |
1 files changed, 12 insertions, 3 deletions
@@ -37,15 +37,24 @@ ARDMK_VENDOR = teensy ARDUINO_CORE_PATH = $(ARDUINO_DIR)/hardware/teensy/avr/cores/teensy3 BOARDS_TXT = $(ARDUINO_DIR)/hardware/$(ARDMK_VENDOR)/avr/boards.txt -ifndef F_CPU - F_CPU=96000000 -endif ifndef PARSE_TEENSY # result = $(call READ_BOARD_TXT, 'boardname', 'parameter') PARSE_TEENSY = $(shell grep -v "^\#" "$(BOARDS_TXT)" | grep $(1).$(2) | cut -d = -f 2- ) endif + +ifndef F_CPU + ifndef BOARD_SUB + SPEEDS := $(call PARSE_TEENSY,"$(BOARD_TAG),menu.speed.*.build.fcpu") # Obtain sequence of supported frequencies. + SPEEDS := $(shell printf "%d\n" $(SPEEDS) | sort -g) # Sort it, just in case. Printf to re-append newlines so that sort works. + F_CPU := $(lastword $(SPEEDS)) # List is sorted in ascending order. Take the fastest speed. + #$(info "speeds is " $(SPEEDS)) # Good for debugging + else + F_CPU := $(call PARSE_TEENSY,$(BOARD_TAG),menu.speed.$(BOARD_SUB).build.fcpu) + endif +endif + # if boards.txt gets modified, look there, else hard code it ARCHITECTURE = $(call PARSE_TEENSY,$(BOARD_TAG),build.architecture) ifeq ($(strip $(ARCHITECTURE)),) |