49 lines
1.1 KiB
Plaintext
49 lines
1.1 KiB
Plaintext
CONFIG_ARM=y
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CONFIG_BOARD_NUCLEO_F446RE=y
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CONFIG_SOC_SERIES_STM32F4X=y
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CONFIG_SOC_STM32F446XE=y
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# 96MHz system clock (highest value to get a precise USB clock)
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CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=96000000
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CONFIG_SYS_CLOCK_TICKS_PER_SEC=1000
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# Enable MPU
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CONFIG_ARM_MPU=y
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CONFIG_SERIAL=y
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# console
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CONFIG_CONSOLE=y
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CONFIG_UART_CONSOLE=y
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# enable I2C
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CONFIG_I2C=y
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# enable pinmux
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CONFIG_PINMUX=y
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# enable GPIO
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CONFIG_GPIO=y
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# clock configuration
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CONFIG_CLOCK_CONTROL=y
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# Clock configuration for Cube Clock control driver
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CONFIG_CLOCK_STM32_HSE_CLOCK=8000000
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CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y
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# use HSE as PLL input
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CONFIG_CLOCK_STM32_PLL_SRC_HSE=y
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# however, the board does not have an external oscillator, so just use
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# the 8MHz clock signal coming from integrated STLink
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CONFIG_CLOCK_STM32_HSE_BYPASS=y
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# produce 84MHz clock at PLL output
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CONFIG_CLOCK_STM32_PLL_M_DIVISOR=8
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CONFIG_CLOCK_STM32_PLL_N_MULTIPLIER=384
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CONFIG_CLOCK_STM32_PLL_P_DIVISOR=4
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CONFIG_CLOCK_STM32_PLL_Q_DIVISOR=8
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CONFIG_CLOCK_STM32_AHB_PRESCALER=1
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# APB1 clock must not exceed 50MHz limit
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CONFIG_CLOCK_STM32_APB1_PRESCALER=2
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CONFIG_CLOCK_STM32_APB2_PRESCALER=1
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