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Merge pull request #10323 from maribu/stm32f103c8_rom_hack

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boards: Enable STM32F103C8 ROM hack via env var
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Kaspar Schleiser 2018-11-06 14:41:06 +01:00 committed by GitHub
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2 changed files with 8 additions and 3 deletions
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4
boards/bluepill/doc.txt
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@ -61,12 +61,12 @@ you can flash the device with:
To make use of the entire 128 KB flash, compile your application with: To make use of the entire 128 KB flash, compile your application with:
$ make BOARD=bluepill CPU_MODEL=stm32f103cb $ make STM32F103C8_FLASH_HACK=1 BOARD=bluepill
This sets the `CPU_MODEL` make variable to `stm32f103cb`, the default This sets the `CPU_MODEL` make variable to `stm32f103cb`, the default
value is `stm32f103c8`. These two CPU models basically only have one value is `stm32f103c8`. These two CPU models basically only have one
major difference, the latter has 128 KB flash while the former has 64 major difference, the latter has 128 KB flash while the former has 64
KB. KB. You may also set `STM32F103C8_FLASH_HACK` as environment variable.
If you want to flash a binary compiled this way you either need to If you want to flash a binary compiled this way you either need to
figure out how to adjust the OpenOCD configuration to make it use 128 KB figure out how to adjust the OpenOCD configuration to make it use 128 KB

7
boards/common/stm32f103c8/Makefile.include
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@ -1,6 +1,11 @@
## the cpu to build for ## the cpu to build for
export CPU = stm32f1 export CPU = stm32f1
export CPU_MODEL = stm32f103c8 STM32F103C8_FLASH_HACK ?= 0
ifneq ($(STM32F103C8_FLASH_HACK),0)
export CPU_MODEL = stm32f103cb
else
export CPU_MODEL = stm32f103c8
endif
INCLUDES += -I$(RIOTBOARD)/common/stm32f103c8/include INCLUDES += -I$(RIOTBOARD)/common/stm32f103c8/include