| CONFIG_ARM=y |
| CONFIG_BOARD_NUCLEO_F401RE=y |
| CONFIG_SOC_SERIES_STM32F4X=y |
| CONFIG_SOC_STM32F401XE=y |
| # 84MHz system clock |
| CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=84000000 |
| CONFIG_SYS_CLOCK_TICKS_PER_SEC=1000 |
| |
| # enable USART2 - passthrough to STLINK v2 connector |
| CONFIG_UART_STM32_PORT_2=y |
| CONFIG_UART_STM32_PORT_2_BAUD_RATE=115200 |
| # enable console on this port by default |
| CONFIG_UART_CONSOLE_ON_DEV_NAME="UART_2" |
| |
| # enable pinmux |
| CONFIG_PINMUX=y |
| |
| # enable GPIO ports A, B, C |
| CONFIG_GPIO=y |
| |
| # clock configuration |
| CONFIG_CLOCK_CONTROL=y |
| CONFIG_CLOCK_STM32F4X_SYSCLK_SRC_PLL=y |
| # use HSE as PLL input |
| CONFIG_CLOCK_STM32F4X_PLL_SRC_HSE=y |
| # however, the board does not have an external oscillator, so just use |
| # the 8MHz clock signal coming from integrated STLink |
| CONFIG_CLOCK_STM32F4X_HSE_BYPASS=y |
| # produce 84MHz clock at PLL output |
| CONFIG_CLOCK_STM32F4X_PLLM_DIV_FACTOR=8 |
| CONFIG_CLOCK_STM32F4X_PLLN_MULTIPLIER=336 |
| CONFIG_CLOCK_STM32F4X_PLLP_DIV_FACTOR=4 |
| CONFIG_CLOCK_STM32F4X_PLLQ_DIV_FACTOR=7 |
| CONFIG_CLOCK_STM32F4X_AHB_PRESCALER=0 |
| CONFIG_CLOCK_STM32F4X_APB1_PRESCALER=2 |
| CONFIG_CLOCK_STM32F4X_APB2_PRESCALER=0 |
| |
| #enable pwm |
| CONFIG_PWM=y |
| CONFIG_PWM_STM32=y |
| CONFIG_PWM_STM32_2=y |
