| # SPDX-License-Identifier: Apache-2.0 |
| |
| # Zephyr Kernel Configuration |
| CONFIG_ARM=y |
| CONFIG_SOC_SERIES_STM32L0X=y |
| |
| # Platform Configuration |
| CONFIG_SOC_FAMILY_STM32=y |
| CONFIG_SOC_STM32L053X8=y |
| CONFIG_BOARD_NUCLEO_L053R8=y |
| |
| # General Kernel Options |
| CONFIG_CORTEX_M_SYSTICK=y |
| CONFIG_SYS_CLOCK_HW_CYCLES_PER_SEC=32000000 |
| CONFIG_SYS_CLOCK_TICKS_PER_SEC=1000 |
| |
| # Kernel Options due to Low Memory (8k) |
| CONFIG_MAIN_STACK_SIZE=640 |
| CONFIG_IDLE_STACK_SIZE=200 |
| CONFIG_ISR_STACK_SIZE=512 |
| # Prevent Interrupt Vector Table in RAM |
| CONFIG_IS_BOOTLOADER=y |
| CONFIG_BOOTLOADER_SRAM_SIZE=8 |
| |
| # Serial Drivers |
| CONFIG_SERIAL=y |
| CONFIG_UART_INTERRUPT_DRIVEN=y |
| # enable console |
| CONFIG_CONSOLE=y |
| CONFIG_UART_CONSOLE=y |
| |
| # Pinmux Driver |
| CONFIG_PINMUX=y |
| |
| # GPIO Controller |
| CONFIG_GPIO=y |
| |
| # Clock configuration |
| CONFIG_CLOCK_CONTROL=y |
| # SYSCLK selection |
| CONFIG_CLOCK_STM32_SYSCLK_SRC_PLL=y |
| # HSE configuration |
| CONFIG_CLOCK_STM32_HSE_CLOCK=8000000 |
| # however, the board does not have an external oscillator, so just use |
| # the 8MHz clock signal coming from integrated STLink |
| CONFIG_CLOCK_STM32_HSE_BYPASS=y |
| # PLL configuration |
| CONFIG_CLOCK_STM32_PLL_SRC_HSE=y |
| # produce 32MHz clock at PLL output |
| CONFIG_CLOCK_STM32_PLL_MULTIPLIER=8 |
| CONFIG_CLOCK_STM32_PLL_DIVISOR=2 |
| CONFIG_CLOCK_STM32_AHB_PRESCALER=1 |
| CONFIG_CLOCK_STM32_APB1_PRESCALER=1 |
| CONFIG_CLOCK_STM32_APB2_PRESCALER=1 |
