zmk_mf68/app/boards/arm/bdn9/bdn9_rev2_defconfig
Pete Johanson 39490552f2 feat(boards): Add BDN9 Rev2 board.
* Onboard stm32f072.
* 3 possible encoder positions.
* Underglow/per-key not yet support.
2020-12-31 14:46:15 -05:00

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# SPDX-License-Identifier: MIT
CONFIG_SOC_SERIES_STM32F0X=y
CONFIG_SOC_STM32F072XB=y
# 72MHz system clock
CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=72000000
# Floating Point Options
CONFIG_FPU=y
# enable GPIO
CONFIG_GPIO=y
# Needed to reduce this to size that will fit on F072
CONFIG_HEAP_MEM_POOL_SIZE=1024
# clock configuration
CONFIG_CLOCK_CONTROL=y
# Clock configuration for Cube Clock control driver
CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y
# use HSI as PLL input
CONFIG_CLOCK_STM32_PLL_SRC_HSI=y
# produce 72MHz clock at PLL output
CONFIG_CLOCK_STM32_PLL_PREDIV=1
CONFIG_CLOCK_STM32_PLL_MULTIPLIER=12
CONFIG_CLOCK_STM32_AHB_PRESCALER=1
CONFIG_CLOCK_STM32_APB1_PRESCALER=2
CONFIG_CLOCK_STM32_APB2_PRESCALER=1