[bsp][stm32l431-BearPi] 为BearPi支持lpuart1外设

5 files changed, 234 insertions, 166 deletions

diff --git a/bsp/stm32/stm32l431-BearPi/board/CubeMX_Config/.mxproject b/bsp/stm32/stm32l431-BearPi/board/CubeMX_Config/.mxproject
index 70ae77589f..87666dd2a1 100644
--- a/bsp/stm32/stm32l431-BearPi/board/CubeMX_Config/.mxproject
+++ b/bsp/stm32/stm32l431-BearPi/board/CubeMX_Config/.mxproject
@@ -1,14 +1,14 @@
 [PreviousLibFiles]
-LibFiles=Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_adc.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_adc.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_adc_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_def.h;Drivers/STM32L4xx_HAL_Driver/Inc/Legacy/stm32_hal_legacy.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_i2c.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_i2c_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_rcc.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_rcc_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_bus.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_rcc.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_crs.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_system.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_utils.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_flash.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_flash_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_flash_ramfunc.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_gpio.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_gpio_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_gpio.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_dma.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_dma_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_dma.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_dmamux.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_pwr.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_pwr_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_pwr.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_cortex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_cortex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_exti.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_exti.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_dac.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_dac.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_dac_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_spi.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_spi_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_tim.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_tim_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_tim.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_uart.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_usart.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_lpuart.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_uart_ex.h;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_adc.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_adc_ex.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_i2c.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_i2c_ex.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_rcc.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_rcc_ex.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_flash.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_flash_ex.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_flash_ramfunc.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_gpio.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_dma.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_dma_ex.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_pwr.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_pwr_ex.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_cortex.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_exti.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_dac.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_dac_ex.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_spi.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_spi_ex.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_tim.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_tim_ex.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_uart.c;Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_uart_ex.c;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_adc.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_adc.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_adc_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_def.h;Drivers/STM32L4xx_HAL_Driver/Inc/Legacy/stm32_hal_legacy.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_i2c.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_i2c_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_rcc.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_rcc_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_bus.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_rcc.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_crs.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_system.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_utils.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_flash.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_flash_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_flash_ramfunc.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_gpio.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_gpio_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_gpio.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_dma.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_dma_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_dma.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_dmamux.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_pwr.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_pwr_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_pwr.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_cortex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_cortex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_exti.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_exti.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_dac.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_dac.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_dac_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_spi.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_spi_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_tim.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_tim_ex.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_tim.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_uart.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_usart.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_ll_lpuart.h;Drivers/STM32L4xx_HAL_Driver/Inc/stm32l4xx_hal_uart_ex.h;Drivers/CMSIS/Device/ST/STM32L4xx/Include/stm32l431xx.h;Drivers/CMSIS/Device/ST/STM32L4xx/Include/stm32l4xx.h;Drivers/CMSIS/Device/ST/STM32L4xx/Include/system_stm32l4xx.h;Drivers/CMSIS/Device/ST/STM32L4xx/Source/Templates/system_stm32l4xx.c;Drivers/CMSIS/Include/core_armv81mml.h;Drivers/CMSIS/Include/cmsis_gcc.h;Drivers/CMSIS/Include/mpu_armv8.h;Drivers/CMSIS/Include/core_armv8mbl.h;Drivers/CMSIS/Include/cmsis_armclang_ltm.h;Drivers/CMSIS/Include/mpu_armv7.h;Drivers/CMSIS/Include/core_cm3.h;Drivers/CMSIS/Include/core_cm0plus.h;Drivers/CMSIS/Include/core_cm4.h;Drivers/CMSIS/Include/cmsis_armcc.h;Drivers/CMSIS/Include/core_cm33.h;Drivers/CMSIS/Include/core_cm23.h;Drivers/CMSIS/Include/core_cm0.h;Drivers/CMSIS/Include/core_cm7.h;Drivers/CMSIS/Include/core_sc000.h;Drivers/CMSIS/Include/cmsis_iccarm.h;Drivers/CMSIS/Include/core_cm35p.h;Drivers/CMSIS/Include/core_cm1.h;Drivers/CMSIS/Include/cmsis_version.h;Drivers/CMSIS/Include/core_armv8mml.h;Drivers/CMSIS/Include/tz_context.h;Drivers/CMSIS/Include/core_sc300.h;Drivers/CMSIS/Include/cmsis_compiler.h;Drivers/CMSIS/Include/cmsis_armclang.h;
+LibFiles=Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_adc.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_adc.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_adc_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_def.h;Drivers\STM32L4xx_HAL_Driver\Inc\Legacy\stm32_hal_legacy.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_i2c.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_i2c_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_rcc.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_rcc_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_bus.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_rcc.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_crs.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_system.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_utils.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_flash.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_flash_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_flash_ramfunc.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_gpio.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_gpio_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_gpio.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_dma.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_dma_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_dma.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_dmamux.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_pwr.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_pwr_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_pwr.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_cortex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_cortex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_exti.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_exti.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_dac.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_dac.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_dac_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_uart.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_usart.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_lpuart.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_uart_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_spi.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_spi_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_tim.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_tim_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_tim.h;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_adc.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_adc_ex.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_i2c.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_i2c_ex.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_rcc.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_rcc_ex.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_flash.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_flash_ex.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_flash_ramfunc.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_gpio.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_dma.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_dma_ex.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_pwr.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_pwr_ex.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_cortex.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_exti.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_dac.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_dac_ex.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_uart.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_uart_ex.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_spi.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_spi_ex.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_tim.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_tim_ex.c;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_adc.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_adc.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_adc_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_def.h;Drivers\STM32L4xx_HAL_Driver\Inc\Legacy\stm32_hal_legacy.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_i2c.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_i2c_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_rcc.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_rcc_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_bus.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_rcc.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_crs.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_system.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_utils.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_flash.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_flash_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_flash_ramfunc.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_gpio.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_gpio_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_gpio.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_dma.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_dma_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_dma.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_dmamux.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_pwr.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_pwr_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_pwr.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_cortex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_cortex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_exti.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_exti.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_dac.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_dac.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_dac_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_uart.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_usart.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_lpuart.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_uart_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_spi.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_spi_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_tim.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_tim_ex.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_ll_tim.h;Drivers\CMSIS\Device\ST\STM32L4xx\Include\stm32l431xx.h;Drivers\CMSIS\Device\ST\STM32L4xx\Include\stm32l4xx.h;Drivers\CMSIS\Device\ST\STM32L4xx\Include\system_stm32l4xx.h;Drivers\CMSIS\Device\ST\STM32L4xx\Source\Templates\system_stm32l4xx.c;Drivers\CMSIS\Include\cmsis_armcc.h;Drivers\CMSIS\Include\cmsis_armclang.h;Drivers\CMSIS\Include\cmsis_armclang_ltm.h;Drivers\CMSIS\Include\cmsis_compiler.h;Drivers\CMSIS\Include\cmsis_gcc.h;Drivers\CMSIS\Include\cmsis_iccarm.h;Drivers\CMSIS\Include\cmsis_version.h;Drivers\CMSIS\Include\core_armv81mml.h;Drivers\CMSIS\Include\core_armv8mbl.h;Drivers\CMSIS\Include\core_armv8mml.h;Drivers\CMSIS\Include\core_cm0.h;Drivers\CMSIS\Include\core_cm0plus.h;Drivers\CMSIS\Include\core_cm1.h;Drivers\CMSIS\Include\core_cm23.h;Drivers\CMSIS\Include\core_cm3.h;Drivers\CMSIS\Include\core_cm33.h;Drivers\CMSIS\Include\core_cm35p.h;Drivers\CMSIS\Include\core_cm4.h;Drivers\CMSIS\Include\core_cm7.h;Drivers\CMSIS\Include\core_sc000.h;Drivers\CMSIS\Include\core_sc300.h;Drivers\CMSIS\Include\mpu_armv7.h;Drivers\CMSIS\Include\mpu_armv8.h;Drivers\CMSIS\Include\tz_context.h;
 
 [PreviousUsedKeilFiles]
-SourceFiles=../Src/main.c;../Src/stm32l4xx_it.c;../Src/stm32l4xx_hal_msp.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_adc.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_adc_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_i2c.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_i2c_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_rcc.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_rcc_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_flash.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_flash_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_flash_ramfunc.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_gpio.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_dma.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_dma_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_pwr.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_pwr_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_cortex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_exti.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_dac.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_dac_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_spi.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_spi_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_tim.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_tim_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_uart.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_uart_ex.c;../Drivers/CMSIS/Device/ST/STM32L4xx/Source/Templates/system_stm32l4xx.c;..//Src/system_stm32l4xx.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_adc.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_adc_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_i2c.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_i2c_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_rcc.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_rcc_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_flash.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_flash_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_flash_ramfunc.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_gpio.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_dma.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_dma_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_pwr.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_pwr_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_cortex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_exti.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_dac.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_dac_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_spi.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_spi_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_tim.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_tim_ex.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_uart.c;../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_uart_ex.c;../Drivers/CMSIS/Device/ST/STM32L4xx/Source/Templates/system_stm32l4xx.c;..//Src/system_stm32l4xx.c;;;
-HeaderPath=../Drivers/STM32L4xx_HAL_Driver/Inc;../Drivers/STM32L4xx_HAL_Driver/Inc/Legacy;../Drivers/CMSIS/Device/ST/STM32L4xx/Include;../Drivers/CMSIS/Include;../Inc;
+SourceFiles=..\Src\main.c;..\Src\stm32l4xx_it.c;..\Src\stm32l4xx_hal_msp.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_adc.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_adc_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_i2c.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_i2c_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_rcc.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_rcc_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_flash.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_flash_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_flash_ramfunc.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_gpio.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_dma.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_dma_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_pwr.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_pwr_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_cortex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_exti.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_dac.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_dac_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_uart.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_uart_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_spi.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_spi_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_tim.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_tim_ex.c;..\Drivers\CMSIS\Device\ST\STM32L4xx\Source\Templates\system_stm32l4xx.c;..\\Src\system_stm32l4xx.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_adc.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_adc_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_i2c.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_i2c_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_rcc.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_rcc_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_flash.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_flash_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_flash_ramfunc.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_gpio.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_dma.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_dma_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_pwr.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_pwr_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_cortex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_exti.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_dac.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_dac_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_uart.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_uart_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_spi.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_spi_ex.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_tim.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_tim_ex.c;..\Drivers\CMSIS\Device\ST\STM32L4xx\Source\Templates\system_stm32l4xx.c;..\\Src\system_stm32l4xx.c;;;
+HeaderPath=..\Drivers\STM32L4xx_HAL_Driver\Inc;..\Drivers\STM32L4xx_HAL_Driver\Inc\Legacy;..\Drivers\CMSIS\Device\ST\STM32L4xx\Include;..\Drivers\CMSIS\Include;..\Inc;
 CDefines=USE_HAL_DRIVER;STM32L431xx;USE_HAL_DRIVER;USE_HAL_DRIVER;
 
 [PreviousGenFiles]
-HeaderPath=../Inc
+HeaderPath=..\Inc
 HeaderFiles=stm32l4xx_it.h;stm32l4xx_hal_conf.h;main.h;
-SourcePath=../Src
+SourcePath=..\Src
 SourceFiles=stm32l4xx_it.c;stm32l4xx_hal_msp.c;main.c;
 
diff --git a/bsp/stm32/stm32l431-BearPi/board/CubeMX_Config/CubeMX_Config.ioc b/bsp/stm32/stm32l431-BearPi/board/CubeMX_Config/CubeMX_Config.ioc
index 0f493de68f..238f22c146 100644
--- a/bsp/stm32/stm32l431-BearPi/board/CubeMX_Config/CubeMX_Config.ioc
+++ b/bsp/stm32/stm32l431-BearPi/board/CubeMX_Config/CubeMX_Config.ioc
@@ -1,11 +1,15 @@
 #MicroXplorer Configuration settings - do not modify
 ADC1.Channel-0\#ChannelRegularConversion=ADC_CHANNEL_3
-ADC1.IPParameters=Rank-0\#ChannelRegularConversion,Channel-0\#ChannelRegularConversion,SamplingTime-0\#ChannelRegularConversion,OffsetNumber-0\#ChannelRegularConversion,NbrOfConversionFlag,master
+ADC1.CommonPathInternal=ADC_CHANNEL_VREFINT|ADC_CHANNEL_TEMPSENSOR|ADC_CHANNEL_VBAT|null
+ADC1.IPParameters=Rank-0\#ChannelRegularConversion,Channel-0\#ChannelRegularConversion,SamplingTime-0\#ChannelRegularConversion,OffsetNumber-0\#ChannelRegularConversion,NbrOfConversionFlag,master,CommonPathInternal
 ADC1.NbrOfConversionFlag=1
 ADC1.OffsetNumber-0\#ChannelRegularConversion=ADC_OFFSET_NONE
 ADC1.Rank-0\#ChannelRegularConversion=1
 ADC1.SamplingTime-0\#ChannelRegularConversion=ADC_SAMPLETIME_2CYCLES_5
 ADC1.master=1
+CAD.formats=
+CAD.pinconfig=
+CAD.provider=
 DAC1.DAC_Channel-DAC_OUT2=DAC_CHANNEL_2
 DAC1.IPParameters=DAC_Channel-DAC_OUT2
 File.Version=6
@@ -15,47 +19,50 @@ Mcu.CPN=STM32L431RCT6
 Mcu.Family=STM32L4
 Mcu.IP0=ADC1
 Mcu.IP1=DAC1
-Mcu.IP10=USART3
-Mcu.IP2=NVIC
-Mcu.IP3=RCC
-Mcu.IP4=SPI1
-Mcu.IP5=SPI2
-Mcu.IP6=SYS
-Mcu.IP7=TIM1
-Mcu.IP8=TIM16
-Mcu.IP9=USART1
-Mcu.IPNb=11
+Mcu.IP10=USART1
+Mcu.IP11=USART3
+Mcu.IP2=LPUART1
+Mcu.IP3=NVIC
+Mcu.IP4=RCC
+Mcu.IP5=SPI1
+Mcu.IP6=SPI2
+Mcu.IP7=SYS
+Mcu.IP8=TIM1
+Mcu.IP9=TIM16
+Mcu.IPNb=12
 Mcu.Name=STM32L431R(B-C)Tx
 Mcu.Package=LQFP64
 Mcu.Pin0=PC14-OSC32_IN (PC14)
 Mcu.Pin1=PC15-OSC32_OUT (PC15)
-Mcu.Pin10=PC5
-Mcu.Pin11=PB13
-Mcu.Pin12=PA8
-Mcu.Pin13=PA9
-Mcu.Pin14=PA10
-Mcu.Pin15=PA12
-Mcu.Pin16=PB8
-Mcu.Pin17=VP_ADC1_TempSens_Input
-Mcu.Pin18=VP_ADC1_Vref_Input
-Mcu.Pin19=VP_ADC1_Vbat_Input
+Mcu.Pin10=PA6
+Mcu.Pin11=PC4
+Mcu.Pin12=PC5
+Mcu.Pin13=PB13
+Mcu.Pin14=PA8
+Mcu.Pin15=PA9
+Mcu.Pin16=PA10
+Mcu.Pin17=PA12
+Mcu.Pin18=PB8
+Mcu.Pin19=VP_ADC1_TempSens_Input
 Mcu.Pin2=PH0-OSC_IN (PH0)
-Mcu.Pin20=VP_SYS_VS_Systick
-Mcu.Pin21=VP_TIM1_VS_ClockSourceINT
-Mcu.Pin22=VP_TIM16_VS_ClockSourceINT
+Mcu.Pin20=VP_ADC1_Vref_Input
+Mcu.Pin21=VP_ADC1_Vbat_Input
+Mcu.Pin22=VP_SYS_VS_Systick
+Mcu.Pin23=VP_TIM1_VS_ClockSourceINT
+Mcu.Pin24=VP_TIM16_VS_ClockSourceINT
 Mcu.Pin3=PH1-OSC_OUT (PH1)
-Mcu.Pin4=PC2
-Mcu.Pin5=PC3
-Mcu.Pin6=PA1
-Mcu.Pin7=PA5
-Mcu.Pin8=PA6
-Mcu.Pin9=PC4
-Mcu.PinsNb=23
+Mcu.Pin4=PC0
+Mcu.Pin5=PC1
+Mcu.Pin6=PC2
+Mcu.Pin7=PC3
+Mcu.Pin8=PA1
+Mcu.Pin9=PA5
+Mcu.PinsNb=25
 Mcu.ThirdPartyNb=0
 Mcu.UserConstants=
 Mcu.UserName=STM32L431RCTx
-MxCube.Version=6.6.1
-MxDb.Version=DB.6.0.60
+MxCube.Version=6.7.0
+MxDb.Version=DB.6.0.70
 NVIC.BusFault_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
 NVIC.DebugMonitor_IRQn=true\:0\:0\:false\:false\:true\:false\:false\:false
 NVIC.ForceEnableDMAVector=true
@@ -90,6 +97,10 @@ PB13.Mode=Simplex_Bidirectional_Master
 PB13.Signal=SPI2_SCK
 PB8.Locked=true
 PB8.Signal=S_TIM16_CH1
+PC0.Mode=Asynchronous
+PC0.Signal=LPUART1_RX
+PC1.Mode=Asynchronous
+PC1.Signal=LPUART1_TX
 PC14-OSC32_IN\ (PC14).Locked=true
 PC14-OSC32_IN\ (PC14).Mode=LSE-External-Oscillator
 PC14-OSC32_IN\ (PC14).Signal=RCC_OSC32_IN
diff --git a/bsp/stm32/stm32l431-BearPi/board/CubeMX_Config/Inc/main.h b/bsp/stm32/stm32l431-BearPi/board/CubeMX_Config/Inc/main.h
index 1019a34959..602531102e 100644
--- a/bsp/stm32/stm32l431-BearPi/board/CubeMX_Config/Inc/main.h
+++ b/bsp/stm32/stm32l431-BearPi/board/CubeMX_Config/Inc/main.h
@@ -60,6 +60,7 @@ void Error_Handler(void);
 /* USER CODE END EFP */
 
 /* Private defines -----------------------------------------------------------*/
+
 /* USER CODE BEGIN Private defines */
 
 /* USER CODE END Private defines */
diff --git a/bsp/stm32/stm32l431-BearPi/board/CubeMX_Config/Src/stm32l4xx_hal_msp.c b/bsp/stm32/stm32l431-BearPi/board/CubeMX_Config/Src/stm32l4xx_hal_msp.c
index ff844cf599..be78430ef7 100644
--- a/bsp/stm32/stm32l431-BearPi/board/CubeMX_Config/Src/stm32l4xx_hal_msp.c
+++ b/bsp/stm32/stm32l431-BearPi/board/CubeMX_Config/Src/stm32l4xx_hal_msp.c
@@ -220,6 +220,186 @@ void HAL_DAC_MspDeInit(DAC_HandleTypeDef* hdac)
 }
 
 /**
+* @brief UART MSP Initialization
+* This function configures the hardware resources used in this example
+* @param huart: UART handle pointer
+* @retval None
+*/
+void HAL_UART_MspInit(UART_HandleTypeDef* huart)
+{
+  GPIO_InitTypeDef GPIO_InitStruct = {0};
+  RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
+  if(huart->Instance==LPUART1)
+  {
+  /* USER CODE BEGIN LPUART1_MspInit 0 */
+
+  /* USER CODE END LPUART1_MspInit 0 */
+
+  /** Initializes the peripherals clock
+  */
+    PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_LPUART1;
+    PeriphClkInit.Lpuart1ClockSelection = RCC_LPUART1CLKSOURCE_PCLK1;
+    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    /* Peripheral clock enable */
+    __HAL_RCC_LPUART1_CLK_ENABLE();
+
+    __HAL_RCC_GPIOC_CLK_ENABLE();
+    /**LPUART1 GPIO Configuration
+    PC0     ------> LPUART1_RX
+    PC1     ------> LPUART1_TX
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_1;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+    GPIO_InitStruct.Pull = GPIO_NOPULL;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+    GPIO_InitStruct.Alternate = GPIO_AF8_LPUART1;
+    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
+
+  /* USER CODE BEGIN LPUART1_MspInit 1 */
+
+  /* USER CODE END LPUART1_MspInit 1 */
+  }
+  else if(huart->Instance==USART1)
+  {
+  /* USER CODE BEGIN USART1_MspInit 0 */
+
+  /* USER CODE END USART1_MspInit 0 */
+
+  /** Initializes the peripherals clock
+  */
+    PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
+    PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2;
+    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    /* Peripheral clock enable */
+    __HAL_RCC_USART1_CLK_ENABLE();
+
+    __HAL_RCC_GPIOA_CLK_ENABLE();
+    /**USART1 GPIO Configuration
+    PA9     ------> USART1_TX
+    PA10     ------> USART1_RX
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+    GPIO_InitStruct.Pull = GPIO_PULLUP;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+    GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
+    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
+
+  /* USER CODE BEGIN USART1_MspInit 1 */
+
+  /* USER CODE END USART1_MspInit 1 */
+  }
+  else if(huart->Instance==USART3)
+  {
+  /* USER CODE BEGIN USART3_MspInit 0 */
+
+  /* USER CODE END USART3_MspInit 0 */
+
+  /** Initializes the peripherals clock
+  */
+    PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART3;
+    PeriphClkInit.Usart3ClockSelection = RCC_USART3CLKSOURCE_PCLK1;
+    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
+    {
+      Error_Handler();
+    }
+
+    /* Peripheral clock enable */
+    __HAL_RCC_USART3_CLK_ENABLE();
+
+    __HAL_RCC_GPIOC_CLK_ENABLE();
+    /**USART3 GPIO Configuration
+    PC4     ------> USART3_TX
+    PC5     ------> USART3_RX
+    */
+    GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_5;
+    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
+    GPIO_InitStruct.Pull = GPIO_NOPULL;
+    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
+    GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
+    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
+
+  /* USER CODE BEGIN USART3_MspInit 1 */
+
+  /* USER CODE END USART3_MspInit 1 */
+  }
+
+}
+
+/**
+* @brief UART MSP De-Initialization
+* This function freeze the hardware resources used in this example
+* @param huart: UART handle pointer
+* @retval None
+*/
+void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
+{
+  if(huart->Instance==LPUART1)
+  {
+  /* USER CODE BEGIN LPUART1_MspDeInit 0 */
+
+  /* USER CODE END LPUART1_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_LPUART1_CLK_DISABLE();
+
+    /**LPUART1 GPIO Configuration
+    PC0     ------> LPUART1_RX
+    PC1     ------> LPUART1_TX
+    */
+    HAL_GPIO_DeInit(GPIOC, GPIO_PIN_0|GPIO_PIN_1);
+
+  /* USER CODE BEGIN LPUART1_MspDeInit 1 */
+
+  /* USER CODE END LPUART1_MspDeInit 1 */
+  }
+  else if(huart->Instance==USART1)
+  {
+  /* USER CODE BEGIN USART1_MspDeInit 0 */
+
+  /* USER CODE END USART1_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_USART1_CLK_DISABLE();
+
+    /**USART1 GPIO Configuration
+    PA9     ------> USART1_TX
+    PA10     ------> USART1_RX
+    */
+    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
+
+  /* USER CODE BEGIN USART1_MspDeInit 1 */
+
+  /* USER CODE END USART1_MspDeInit 1 */
+  }
+  else if(huart->Instance==USART3)
+  {
+  /* USER CODE BEGIN USART3_MspDeInit 0 */
+
+  /* USER CODE END USART3_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_USART3_CLK_DISABLE();
+
+    /**USART3 GPIO Configuration
+    PC4     ------> USART3_TX
+    PC5     ------> USART3_RX
+    */
+    HAL_GPIO_DeInit(GPIOC, GPIO_PIN_4|GPIO_PIN_5);
+
+  /* USER CODE BEGIN USART3_MspDeInit 1 */
+
+  /* USER CODE END USART3_MspDeInit 1 */
+  }
+
+}
+
+/**
 * @brief SPI MSP Initialization
 * This function configures the hardware resources used in this example
 * @param hspi: SPI handle pointer
@@ -450,134 +630,6 @@ void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* htim_base)
 
 }
 
-/**
-* @brief UART MSP Initialization
-* This function configures the hardware resources used in this example
-* @param huart: UART handle pointer
-* @retval None
-*/
-void HAL_UART_MspInit(UART_HandleTypeDef* huart)
-{
-  GPIO_InitTypeDef GPIO_InitStruct = {0};
-  RCC_PeriphCLKInitTypeDef PeriphClkInit = {0};
-  if(huart->Instance==USART1)
-  {
-  /* USER CODE BEGIN USART1_MspInit 0 */
-
-  /* USER CODE END USART1_MspInit 0 */
-
-  /** Initializes the peripherals clock
-  */
-    PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART1;
-    PeriphClkInit.Usart1ClockSelection = RCC_USART1CLKSOURCE_PCLK2;
-    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
-    {
-      Error_Handler();
-    }
-
-    /* Peripheral clock enable */
-    __HAL_RCC_USART1_CLK_ENABLE();
-
-    __HAL_RCC_GPIOA_CLK_ENABLE();
-    /**USART1 GPIO Configuration
-    PA9     ------> USART1_TX
-    PA10     ------> USART1_RX
-    */
-    GPIO_InitStruct.Pin = GPIO_PIN_9|GPIO_PIN_10;
-    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
-    GPIO_InitStruct.Pull = GPIO_PULLUP;
-    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
-    GPIO_InitStruct.Alternate = GPIO_AF7_USART1;
-    HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
-
-  /* USER CODE BEGIN USART1_MspInit 1 */
-
-  /* USER CODE END USART1_MspInit 1 */
-  }
-  else if(huart->Instance==USART3)
-  {
-  /* USER CODE BEGIN USART3_MspInit 0 */
-
-  /* USER CODE END USART3_MspInit 0 */
-
-  /** Initializes the peripherals clock
-  */
-    PeriphClkInit.PeriphClockSelection = RCC_PERIPHCLK_USART3;
-    PeriphClkInit.Usart3ClockSelection = RCC_USART3CLKSOURCE_PCLK1;
-    if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInit) != HAL_OK)
-    {
-      Error_Handler();
-    }
-
-    /* Peripheral clock enable */
-    __HAL_RCC_USART3_CLK_ENABLE();
-
-    __HAL_RCC_GPIOC_CLK_ENABLE();
-    /**USART3 GPIO Configuration
-    PC4     ------> USART3_TX
-    PC5     ------> USART3_RX
-    */
-    GPIO_InitStruct.Pin = GPIO_PIN_4|GPIO_PIN_5;
-    GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
-    GPIO_InitStruct.Pull = GPIO_NOPULL;
-    GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
-    GPIO_InitStruct.Alternate = GPIO_AF7_USART3;
-    HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
-
-  /* USER CODE BEGIN USART3_MspInit 1 */
-
-  /* USER CODE END USART3_MspInit 1 */
-  }
-
-}
-
-/**
-* @brief UART MSP De-Initialization
-* This function freeze the hardware resources used in this example
-* @param huart: UART handle pointer
-* @retval None
-*/
-void HAL_UART_MspDeInit(UART_HandleTypeDef* huart)
-{
-  if(huart->Instance==USART1)
-  {
-  /* USER CODE BEGIN USART1_MspDeInit 0 */
-
-  /* USER CODE END USART1_MspDeInit 0 */
-    /* Peripheral clock disable */
-    __HAL_RCC_USART1_CLK_DISABLE();
-
-    /**USART1 GPIO Configuration
-    PA9     ------> USART1_TX
-    PA10     ------> USART1_RX
-    */
-    HAL_GPIO_DeInit(GPIOA, GPIO_PIN_9|GPIO_PIN_10);
-
-  /* USER CODE BEGIN USART1_MspDeInit 1 */
-
-  /* USER CODE END USART1_MspDeInit 1 */
-  }
-  else if(huart->Instance==USART3)
-  {
-  /* USER CODE BEGIN USART3_MspDeInit 0 */
-
-  /* USER CODE END USART3_MspDeInit 0 */
-    /* Peripheral clock disable */
-    __HAL_RCC_USART3_CLK_DISABLE();
-
-    /**USART3 GPIO Configuration
-    PC4     ------> USART3_TX
-    PC5     ------> USART3_RX
-    */
-    HAL_GPIO_DeInit(GPIOC, GPIO_PIN_4|GPIO_PIN_5);
-
-  /* USER CODE BEGIN USART3_MspDeInit 1 */
-
-  /* USER CODE END USART3_MspDeInit 1 */
-  }
-
-}
-
 /* USER CODE BEGIN 1 */
 
 /* USER CODE END 1 */
diff --git a/bsp/stm32/stm32l431-BearPi/board/Kconfig b/bsp/stm32/stm32l431-BearPi/board/Kconfig
index 7923e902be..3db4cc62c5 100644
--- a/bsp/stm32/stm32l431-BearPi/board/Kconfig
+++ b/bsp/stm32/stm32l431-BearPi/board/Kconfig
@@ -46,6 +46,10 @@ menu "On-chip Peripheral Drivers"
                 bool "Enable UART3 TX DMA"
                 depends on BSP_USING_UART3 && RT_SERIAL_USING_DMA
                 default n
+
+            config BSP_USING_LPUART1
+                bool "Enable LPUART1"
+                default n
         endif
 
     menuconfig BSP_USING_ADC