| CONFIG_ARM=y |
| CONFIG_BOARD_DISCO_L475_IOT1=y |
| CONFIG_SOC_FAMILY_STM32=y |
| CONFIG_SOC_SERIES_STM32L4X=y |
| CONFIG_SOC_STM32L475XG=y |
| CONFIG_CORTEX_M_SYSTICK=y |
| # 80MHz system clock |
| CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=80000000 |
| |
| # enable uart driver |
| CONFIG_SERIAL=y |
| CONFIG_UART_STM32=y |
| |
| # enable pinmux |
| CONFIG_PINMUX=y |
| CONFIG_PINMUX_STM32=y |
| |
| # enable GPIOs |
| CONFIG_GPIO=y |
| CONFIG_GPIO_STM32=y |
| |
| # clock configuration |
| CONFIG_CLOCK_CONTROL=y |
| # SYSCLK selection |
| CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y |
| # PLL configuration |
| CONFIG_CLOCK_STM32_PLL_SRC_HSI=y |
| # produce 80MHz clock at PLL output |
| CONFIG_CLOCK_STM32_PLL_M_DIVISOR=1 |
| CONFIG_CLOCK_STM32_PLL_N_MULTIPLIER=20 |
| CONFIG_CLOCK_STM32_PLL_P_DIVISOR=7 |
| CONFIG_CLOCK_STM32_PLL_Q_DIVISOR=2 |
| CONFIG_CLOCK_STM32_PLL_R_DIVISOR=4 |
| CONFIG_CLOCK_STM32_AHB_PRESCALER=1 |
| CONFIG_CLOCK_STM32_APB1_PRESCALER=1 |
| CONFIG_CLOCK_STM32_APB2_PRESCALER=1 |
| |
| # console |
| CONFIG_CONSOLE=y |
| CONFIG_UART_CONSOLE=y |
| CONFIG_UART_CONSOLE_ON_DEV_NAME="UART_1" |
| |
| #enable pwm |
| CONFIG_PWM=y |
| CONFIG_PWM_STM32=y |
| |
| #enable I2C |
| CONFIG_I2C=y |
| CONFIG_I2C_STM32LX=y |
| |
| #configure HTS221 sensor |
| CONFIG_HTS221_I2C_MASTER_DEV_NAME="I2C_2" |
| CONFIG_HTS221_TRIGGER_NONE=y |
