diff --git a/board/BearPi_STM32L31RC/BSP/.mxproject b/board/BearPi_STM32L431RC/BSP/.mxproject
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/.mxproject
rename to board/BearPi_STM32L431RC/BSP/.mxproject
diff --git a/board/BearPi_STM32L31RC/BSP/BearPi_STM32L31RC.ioc b/board/BearPi_STM32L431RC/BSP/BearPi_STM32L31RC.ioc
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/BearPi_STM32L31RC.ioc
rename to board/BearPi_STM32L431RC/BSP/BearPi_STM32L31RC.ioc
diff --git a/board/BearPi_STM32L31RC/BSP/Hardware/BH1750/BH1750.c b/board/BearPi_STM32L431RC/BSP/Hardware/BH1750/BH1750.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Hardware/BH1750/BH1750.c
rename to board/BearPi_STM32L431RC/BSP/Hardware/BH1750/BH1750.c
diff --git a/board/BearPi_STM32L31RC/BSP/Hardware/BH1750/bh1750.h b/board/BearPi_STM32L431RC/BSP/Hardware/BH1750/bh1750.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Hardware/BH1750/bh1750.h
rename to board/BearPi_STM32L431RC/BSP/Hardware/BH1750/bh1750.h
diff --git a/board/BearPi_STM32L31RC/BSP/Hardware/E53_IA1/E53_IA1.c b/board/BearPi_STM32L431RC/BSP/Hardware/E53_IA1/E53_IA1.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Hardware/E53_IA1/E53_IA1.c
rename to board/BearPi_STM32L431RC/BSP/Hardware/E53_IA1/E53_IA1.c
diff --git a/board/BearPi_STM32L31RC/BSP/Hardware/E53_IA1/E53_IA1.h b/board/BearPi_STM32L431RC/BSP/Hardware/E53_IA1/E53_IA1.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Hardware/E53_IA1/E53_IA1.h
rename to board/BearPi_STM32L431RC/BSP/Hardware/E53_IA1/E53_IA1.h
diff --git a/board/BearPi_STM32L31RC/BSP/Hardware/E53_SF1/E53_SF1.c b/board/BearPi_STM32L431RC/BSP/Hardware/E53_SF1/E53_SF1.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Hardware/E53_SF1/E53_SF1.c
rename to board/BearPi_STM32L431RC/BSP/Hardware/E53_SF1/E53_SF1.c
diff --git a/board/BearPi_STM32L31RC/BSP/Hardware/E53_SF1/E53_SF1.h b/board/BearPi_STM32L431RC/BSP/Hardware/E53_SF1/E53_SF1.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Hardware/E53_SF1/E53_SF1.h
rename to board/BearPi_STM32L431RC/BSP/Hardware/E53_SF1/E53_SF1.h
diff --git a/board/BearPi_STM32L31RC/BSP/Hardware/E53_ST1/E53_ST1.c b/board/BearPi_STM32L431RC/BSP/Hardware/E53_ST1/E53_ST1.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Hardware/E53_ST1/E53_ST1.c
rename to board/BearPi_STM32L431RC/BSP/Hardware/E53_ST1/E53_ST1.c
diff --git a/board/BearPi_STM32L31RC/BSP/Hardware/E53_ST1/E53_ST1.h b/board/BearPi_STM32L431RC/BSP/Hardware/E53_ST1/E53_ST1.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Hardware/E53_ST1/E53_ST1.h
rename to board/BearPi_STM32L431RC/BSP/Hardware/E53_ST1/E53_ST1.h
diff --git a/board/BearPi_STM32L31RC/BSP/Hardware/LCD_ST7789/font.h b/board/BearPi_STM32L431RC/BSP/Hardware/LCD_ST7789/font.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Hardware/LCD_ST7789/font.h
rename to board/BearPi_STM32L431RC/BSP/Hardware/LCD_ST7789/font.h
diff --git a/board/BearPi_STM32L31RC/BSP/Hardware/LCD_ST7789/lcd_spi2_drv.c b/board/BearPi_STM32L431RC/BSP/Hardware/LCD_ST7789/lcd_spi2_drv.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Hardware/LCD_ST7789/lcd_spi2_drv.c
rename to board/BearPi_STM32L431RC/BSP/Hardware/LCD_ST7789/lcd_spi2_drv.c
diff --git a/board/BearPi_STM32L31RC/BSP/Hardware/LCD_ST7789/lcd_spi2_drv.h b/board/BearPi_STM32L431RC/BSP/Hardware/LCD_ST7789/lcd_spi2_drv.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Hardware/LCD_ST7789/lcd_spi2_drv.h
rename to board/BearPi_STM32L431RC/BSP/Hardware/LCD_ST7789/lcd_spi2_drv.h
diff --git a/board/BearPi_STM32L31RC/BSP/Hardware/LCD_ST7789/logo.h b/board/BearPi_STM32L431RC/BSP/Hardware/LCD_ST7789/logo.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Hardware/LCD_ST7789/logo.h
rename to board/BearPi_STM32L431RC/BSP/Hardware/LCD_ST7789/logo.h
diff --git a/board/BearPi_STM32L31RC/BSP/Inc/adc.h b/board/BearPi_STM32L431RC/BSP/Inc/adc.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Inc/adc.h
rename to board/BearPi_STM32L431RC/BSP/Inc/adc.h
diff --git a/board/BearPi_STM32L31RC/BSP/Inc/gpio.h b/board/BearPi_STM32L431RC/BSP/Inc/gpio.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Inc/gpio.h
rename to board/BearPi_STM32L431RC/BSP/Inc/gpio.h
diff --git a/board/BearPi_STM32L31RC/BSP/Inc/i2c.h b/board/BearPi_STM32L431RC/BSP/Inc/i2c.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Inc/i2c.h
rename to board/BearPi_STM32L431RC/BSP/Inc/i2c.h
diff --git a/board/BearPi_STM32L31RC/BSP/Inc/main.h b/board/BearPi_STM32L431RC/BSP/Inc/main.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Inc/main.h
rename to board/BearPi_STM32L431RC/BSP/Inc/main.h
diff --git a/board/BearPi_STM32L31RC/BSP/Inc/mcu_init.h b/board/BearPi_STM32L431RC/BSP/Inc/mcu_init.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Inc/mcu_init.h
rename to board/BearPi_STM32L431RC/BSP/Inc/mcu_init.h
diff --git a/board/BearPi_STM32L31RC/BSP/Inc/spi.h b/board/BearPi_STM32L431RC/BSP/Inc/spi.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Inc/spi.h
rename to board/BearPi_STM32L431RC/BSP/Inc/spi.h
diff --git a/board/BearPi_STM32L31RC/BSP/Inc/stm32l4xx_hal_conf.h b/board/BearPi_STM32L431RC/BSP/Inc/stm32l4xx_hal_conf.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Inc/stm32l4xx_hal_conf.h
rename to board/BearPi_STM32L431RC/BSP/Inc/stm32l4xx_hal_conf.h
diff --git a/board/BearPi_STM32L31RC/BSP/Inc/stm32l4xx_it.h b/board/BearPi_STM32L431RC/BSP/Inc/stm32l4xx_it.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Inc/stm32l4xx_it.h
rename to board/BearPi_STM32L431RC/BSP/Inc/stm32l4xx_it.h
diff --git a/board/BearPi_STM32L31RC/BSP/Inc/tickless/bsp_pm_device.h b/board/BearPi_STM32L431RC/BSP/Inc/tickless/bsp_pm_device.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Inc/tickless/bsp_pm_device.h
rename to board/BearPi_STM32L431RC/BSP/Inc/tickless/bsp_pm_device.h
diff --git a/board/BearPi_STM32L31RC/BSP/Inc/tickless/bsp_tickless_alarm.h b/board/BearPi_STM32L431RC/BSP/Inc/tickless/bsp_tickless_alarm.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Inc/tickless/bsp_tickless_alarm.h
rename to board/BearPi_STM32L431RC/BSP/Inc/tickless/bsp_tickless_alarm.h
diff --git a/board/BearPi_STM32L31RC/BSP/Inc/usart.h b/board/BearPi_STM32L431RC/BSP/Inc/usart.h
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Inc/usart.h
rename to board/BearPi_STM32L431RC/BSP/Inc/usart.h
diff --git a/board/BearPi_STM32L31RC/BSP/Src/adc.c b/board/BearPi_STM32L431RC/BSP/Src/adc.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Src/adc.c
rename to board/BearPi_STM32L431RC/BSP/Src/adc.c
diff --git a/board/BearPi_STM32L31RC/BSP/Src/gpio.c b/board/BearPi_STM32L431RC/BSP/Src/gpio.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Src/gpio.c
rename to board/BearPi_STM32L431RC/BSP/Src/gpio.c
diff --git a/board/BearPi_STM32L31RC/BSP/Src/i2c.c b/board/BearPi_STM32L431RC/BSP/Src/i2c.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Src/i2c.c
rename to board/BearPi_STM32L431RC/BSP/Src/i2c.c
diff --git a/board/BearPi_STM32L31RC/BSP/Src/main.c b/board/BearPi_STM32L431RC/BSP/Src/main.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Src/main.c
rename to board/BearPi_STM32L431RC/BSP/Src/main.c
diff --git a/board/BearPi_STM32L31RC/BSP/Src/mcu_init.c b/board/BearPi_STM32L431RC/BSP/Src/mcu_init.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Src/mcu_init.c
rename to board/BearPi_STM32L431RC/BSP/Src/mcu_init.c
diff --git a/board/BearPi_STM32L31RC/BSP/Src/spi.c b/board/BearPi_STM32L431RC/BSP/Src/spi.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Src/spi.c
rename to board/BearPi_STM32L431RC/BSP/Src/spi.c
diff --git a/board/BearPi_STM32L31RC/BSP/Src/stm32l4xx_hal_msp.c b/board/BearPi_STM32L431RC/BSP/Src/stm32l4xx_hal_msp.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Src/stm32l4xx_hal_msp.c
rename to board/BearPi_STM32L431RC/BSP/Src/stm32l4xx_hal_msp.c
diff --git a/board/BearPi_STM32L31RC/BSP/Src/stm32l4xx_it.c b/board/BearPi_STM32L431RC/BSP/Src/stm32l4xx_it.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Src/stm32l4xx_it.c
rename to board/BearPi_STM32L431RC/BSP/Src/stm32l4xx_it.c
diff --git a/board/BearPi_STM32L31RC/BSP/Src/stm32l4xx_it_module.c b/board/BearPi_STM32L431RC/BSP/Src/stm32l4xx_it_module.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Src/stm32l4xx_it_module.c
rename to board/BearPi_STM32L431RC/BSP/Src/stm32l4xx_it_module.c
diff --git a/board/BearPi_STM32L31RC/BSP/Src/system_stm32l4xx.c b/board/BearPi_STM32L431RC/BSP/Src/system_stm32l4xx.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Src/system_stm32l4xx.c
rename to board/BearPi_STM32L431RC/BSP/Src/system_stm32l4xx.c
diff --git a/board/BearPi_STM32L31RC/BSP/Src/tickless/bsp_pm_device.c b/board/BearPi_STM32L431RC/BSP/Src/tickless/bsp_pm_device.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Src/tickless/bsp_pm_device.c
rename to board/BearPi_STM32L431RC/BSP/Src/tickless/bsp_pm_device.c
diff --git a/board/BearPi_STM32L31RC/BSP/Src/tickless/bsp_pwr_mgr.c b/board/BearPi_STM32L431RC/BSP/Src/tickless/bsp_pwr_mgr.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Src/tickless/bsp_pwr_mgr.c
rename to board/BearPi_STM32L431RC/BSP/Src/tickless/bsp_pwr_mgr.c
diff --git a/board/BearPi_STM32L31RC/BSP/Src/tickless/bsp_tickless_alarm.c b/board/BearPi_STM32L431RC/BSP/Src/tickless/bsp_tickless_alarm.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Src/tickless/bsp_tickless_alarm.c
rename to board/BearPi_STM32L431RC/BSP/Src/tickless/bsp_tickless_alarm.c
diff --git a/board/BearPi_STM32L31RC/BSP/Src/usart.c b/board/BearPi_STM32L431RC/BSP/Src/usart.c
similarity index 100%
rename from board/BearPi_STM32L31RC/BSP/Src/usart.c
rename to board/BearPi_STM32L431RC/BSP/Src/usart.c
diff --git a/board/BearPi_STM32L31RC/KEIL/hello_world/BearPi_STM32L31RC.uvoptx b/board/BearPi_STM32L431RC/KEIL/hello_world/BearPi_STM32L31RC.uvoptx
similarity index 100%
rename from board/BearPi_STM32L31RC/KEIL/hello_world/BearPi_STM32L31RC.uvoptx
rename to board/BearPi_STM32L431RC/KEIL/hello_world/BearPi_STM32L31RC.uvoptx
diff --git a/board/BearPi_STM32L31RC/KEIL/hello_world/BearPi_STM32L31RC.uvprojx b/board/BearPi_STM32L431RC/KEIL/hello_world/BearPi_STM32L31RC.uvprojx
similarity index 100%
rename from board/BearPi_STM32L31RC/KEIL/hello_world/BearPi_STM32L31RC.uvprojx
rename to board/BearPi_STM32L431RC/KEIL/hello_world/BearPi_STM32L31RC.uvprojx
diff --git a/board/BearPi_STM32L31RC/KEIL/hello_world/startup_stm32l431xx.s b/board/BearPi_STM32L431RC/KEIL/hello_world/startup_stm32l431xx.s
similarity index 100%
rename from board/BearPi_STM32L31RC/KEIL/hello_world/startup_stm32l431xx.s
rename to board/BearPi_STM32L431RC/KEIL/hello_world/startup_stm32l431xx.s
diff --git a/board/BearPi_STM32L31RC/TOS-CONFIG/tickless/tos_config.h b/board/BearPi_STM32L431RC/TOS-CONFIG/tickless/tos_config.h
similarity index 100%
rename from board/BearPi_STM32L31RC/TOS-CONFIG/tickless/tos_config.h
rename to board/BearPi_STM32L431RC/TOS-CONFIG/tickless/tos_config.h
diff --git a/board/BearPi_STM32L31RC/TOS-CONFIG/tos_config.h b/board/BearPi_STM32L431RC/TOS-CONFIG/tos_config.h
similarity index 100%
rename from board/BearPi_STM32L31RC/TOS-CONFIG/tos_config.h
rename to board/BearPi_STM32L431RC/TOS-CONFIG/tos_config.h