diff options
| -rw-r--r-- | Arduino.mk | 33 | ||||
| -rw-r--r-- | HISTORY.md | 1 | ||||
| -rw-r--r-- | arduino-mk-vars.md | 27 |
3 files changed, 57 insertions, 4 deletions
@@ -641,6 +641,11 @@ else $(call show_config_variable,BOARD_TAG,[USER]) endif +ifdef BOARD_CLOCK + BOARD_CLOCK := $(strip $(BOARD_CLOCK)) + $(call show_config_variable,BOARD_CLOCK,[USER]) +endif + # If NO_CORE is set, then we don't have to parse boards.txt file # But the user might have to define MCU, F_CPU etc ifeq ($(strip $(NO_CORE)),) @@ -686,7 +691,12 @@ ifeq ($(strip $(NO_CORE)),) endif ifndef F_CPU - F_CPU := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).build.f_cpu) + ifdef BOARD_CLOCK + F_CPU := $(call PARSE_BOARD,$(BOARD_TAG),menu.(speed|clock).$(BOARD_CLOCK).build.f_cpu) + endif + ifndef F_CPU + F_CPU := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).build.f_cpu) + endif ifndef F_CPU F_CPU := $(call PARSE_BOARD,$(BOARD_TAG),build.f_cpu) endif @@ -731,21 +741,36 @@ ifeq ($(strip $(NO_CORE)),) endif ifndef ISP_HIGH_FUSE - ISP_HIGH_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).bootloader.high_fuses) + ifdef BOARD_CLOCK + ISP_HIGH_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),menu.(speed|clock).$(BOARD_CLOCK).bootloader.high_fuses) + endif + ifndef ISP_HIGH_FUSE + ISP_HIGH_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).bootloader.high_fuses) + endif ifndef ISP_HIGH_FUSE ISP_HIGH_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),bootloader.high_fuses) endif endif ifndef ISP_LOW_FUSE - ISP_LOW_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).bootloader.low_fuses) + ifdef BOARD_CLOCK + ISP_LOW_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),menu.(speed|clock).$(BOARD_CLOCK).bootloader.low_fuses) + endif + ifndef ISP_LOW_FUSE + ISP_LOW_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).bootloader.low_fuses) + endif ifndef ISP_LOW_FUSE ISP_LOW_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),bootloader.low_fuses) endif endif ifndef ISP_EXT_FUSE - ISP_EXT_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).bootloader.extended_fuses) + ifdef BOARD_CLOCK + ISP_EXT_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),menu.(speed|clock).$(BOARD_CLOCK).bootloader.extended_fuses) + endif + ifndef ISP_EXT_FUSE + ISP_EXT_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),menu.(chip|cpu).$(BOARD_SUB).bootloader.extended_fuses) + endif ifndef ISP_EXT_FUSE ISP_EXT_FUSE := $(call PARSE_BOARD,$(BOARD_TAG),bootloader.extended_fuses) endif @@ -5,6 +5,7 @@ The following is the rough list of changes that went into different versions. I tried to give credit whenever possible. If I have missed anyone, kindly add it to the list. ### In Development +- New: Add support for BOARD_CLOCK for board.menu.speed and board.menu.clock entries in boards.txt files. (https://github.com/dewhisna) - Fix: Moved CORE_LIB to the last position of the defined linked objects. (https://github.com/wingunder) - Fix: Moved ATtiny examples to ATtinyBlink, updated alternate core instructions (issue #537) (https://github.com/sej7278) - Fix: Add -fno-devirtualize flag to workaround g++ segfault bug (issue #486). (https://github.com/sej7278) diff --git a/arduino-mk-vars.md b/arduino-mk-vars.md index b6b9b37..3ee05d0 100644 --- a/arduino-mk-vars.md +++ b/arduino-mk-vars.md @@ -344,6 +344,33 @@ BOARD_SUB=atmega168 ---- +### BOARD_CLOCK + +**Description:** + +Allow selection of f_cpu and fuses specified in `boards.txt` as `{BOARD_TAG}.menu.clock.{BOARD_CLOCK}`. +This works for microprocessor board definitions like ATtiny that specify not only the clock speed but fuse settings as clock overrides. + +It also works for f_cpu values specified in `boards.txt` as `{BOARD_TAG}.menu.speed.{BOARD_CLOCK}`. +For example, the Watterott ATmega328PB library [https://github.com/watterott/ATmega328PB-Testing](https://github.com/watterott/ATmega328PB-Testing). + +**Example:** + +```Makefile +# Select external 16 MHz clock +BOARD_CLOCK=external16 +``` + +**Example:** +```Makefile +# Select 20MHz speed +BOARD_CLOCK=20mhz +``` + +**Requirement:** *Optional to override main board f_cpu and/or fuse settings.* + +---- + ### MONITOR_PORT **Description:** |