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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
commit 880b3319db
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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:
$ make BOARD=bluepill CPU_MODEL=stm32f103cb
$ make STM32F103C8_FLASH_HACK=1 BOARD=bluepill
This sets the `CPU_MODEL` make variable to `stm32f103cb`, the default
value is `stm32f103c8`. These two CPU models basically only have one
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
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
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