diff --git a/app/.mxproject b/app/.mxproject
index c12950b..f348a6e 100644
--- a/app/.mxproject
+++ b/app/.mxproject
@@ -1,28 +1,30 @@
 [PreviousLibFiles]
-LibFiles=Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_tim.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_tim_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_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\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\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\Inc\stm32l4xx_hal_tim.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_tim_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_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\CMSIS\Device\ST\STM32L4xx\Include\stm32l432xx.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;
+LibFiles=Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_tim.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal.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_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_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_tim.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_tim_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_uart.c;Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_uart_ex.c;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal_tim.h;Drivers\STM32L4xx_HAL_Driver\Inc\stm32l4xx_hal.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_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_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\stm32l432xx.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=..\Core\Src\main.c;..\Core\Src\gpio.c;..\Core\Src\usart.c;..\Core\Src\stm32l4xx_it.c;..\Core\Src\stm32l4xx_hal_msp.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\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\CMSIS\Device\ST\STM32L4xx\Source\Templates\system_stm32l4xx.c;..\Core\Src\system_stm32l4xx.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\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\CMSIS\Device\ST\STM32L4xx\Source\Templates\system_stm32l4xx.c;..\Core\Src\system_stm32l4xx.c;;;
+SourceFiles=..\Core\Src\main.c;..\Core\Src\gpio.c;..\Core\Src\tim.c;..\Core\Src\usart.c;..\Core\Src\stm32l4xx_it.c;..\Core\Src\stm32l4xx_hal_msp.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.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_uart.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_uart_ex.c;..\Drivers\CMSIS\Device\ST\STM32L4xx\Source\Templates\system_stm32l4xx.c;..\Core\Src\system_stm32l4xx.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.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_uart.c;..\Drivers\STM32L4xx_HAL_Driver\Src\stm32l4xx_hal_uart_ex.c;..\Drivers\CMSIS\Device\ST\STM32L4xx\Source\Templates\system_stm32l4xx.c;..\Core\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;..\Core\Inc;
 CDefines=USE_HAL_DRIVER;STM32L432xx;USE_HAL_DRIVER;USE_HAL_DRIVER;
 
 [PreviousGenFiles]
 AdvancedFolderStructure=true
-HeaderFileListSize=5
+HeaderFileListSize=6
 HeaderFiles#0=..\Core\Inc\gpio.h
-HeaderFiles#1=..\Core\Inc\usart.h
-HeaderFiles#2=..\Core\Inc\stm32l4xx_it.h
-HeaderFiles#3=..\Core\Inc\stm32l4xx_hal_conf.h
-HeaderFiles#4=..\Core\Inc\main.h
+HeaderFiles#1=..\Core\Inc\tim.h
+HeaderFiles#2=..\Core\Inc\usart.h
+HeaderFiles#3=..\Core\Inc\stm32l4xx_it.h
+HeaderFiles#4=..\Core\Inc\stm32l4xx_hal_conf.h
+HeaderFiles#5=..\Core\Inc\main.h
 HeaderFolderListSize=1
 HeaderPath#0=..\Core\Inc
 HeaderFiles=;
-SourceFileListSize=5
+SourceFileListSize=6
 SourceFiles#0=..\Core\Src\gpio.c
-SourceFiles#1=..\Core\Src\usart.c
-SourceFiles#2=..\Core\Src\stm32l4xx_it.c
-SourceFiles#3=..\Core\Src\stm32l4xx_hal_msp.c
-SourceFiles#4=..\Core\Src\main.c
+SourceFiles#1=..\Core\Src\tim.c
+SourceFiles#2=..\Core\Src\usart.c
+SourceFiles#3=..\Core\Src\stm32l4xx_it.c
+SourceFiles#4=..\Core\Src\stm32l4xx_hal_msp.c
+SourceFiles#5=..\Core\Src\main.c
 SourceFolderListSize=1
 SourcePath#0=..\Core\Src
 SourceFiles=;
diff --git a/app/Core/Inc/stm32l4xx_hal_conf.h b/app/Core/Inc/stm32l4xx_hal_conf.h
index 6b5cd70..b9fa5b9 100644
--- a/app/Core/Inc/stm32l4xx_hal_conf.h
+++ b/app/Core/Inc/stm32l4xx_hal_conf.h
@@ -76,7 +76,7 @@
 /*#define HAL_SPI_MODULE_ENABLED   */
 /*#define HAL_SRAM_MODULE_ENABLED   */
 /*#define HAL_SWPMI_MODULE_ENABLED   */
-/*#define HAL_TIM_MODULE_ENABLED   */
+#define HAL_TIM_MODULE_ENABLED
 /*#define HAL_TSC_MODULE_ENABLED   */
 #define HAL_UART_MODULE_ENABLED
 /*#define HAL_USART_MODULE_ENABLED   */
diff --git a/app/Core/Inc/tim.h b/app/Core/Inc/tim.h
new file mode 100644
index 0000000..7da9e33
--- /dev/null
+++ b/app/Core/Inc/tim.h
@@ -0,0 +1,52 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    tim.h
+  * @brief   This file contains all the function prototypes for
+  *          the tim.c file
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2023 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef __TIM_H__
+#define __TIM_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "main.h"
+
+/* USER CODE BEGIN Includes */
+
+/* USER CODE END Includes */
+
+extern TIM_HandleTypeDef htim7;
+
+/* USER CODE BEGIN Private defines */
+
+/* USER CODE END Private defines */
+
+void MX_TIM7_Init(void);
+
+/* USER CODE BEGIN Prototypes */
+
+/* USER CODE END Prototypes */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* __TIM_H__ */
+
diff --git a/app/Core/Src/main.c b/app/Core/Src/main.c
index ca8acb3..4267ebf 100644
--- a/app/Core/Src/main.c
+++ b/app/Core/Src/main.c
@@ -18,6 +18,7 @@
 /* USER CODE END Header */
 /* Includes ------------------------------------------------------------------*/
 #include "main.h"
+#include "tim.h"
 #include "usart.h"
 #include "gpio.h"
 
@@ -87,6 +88,7 @@ int main(void)
   MX_GPIO_Init();
   MX_USART1_UART_Init();
   MX_USART2_UART_Init();
+  MX_TIM7_Init();
   /* USER CODE BEGIN 2 */
   extern void user_main();
   user_main();
diff --git a/app/Core/Src/tim.c b/app/Core/Src/tim.c
new file mode 100644
index 0000000..51d5820
--- /dev/null
+++ b/app/Core/Src/tim.c
@@ -0,0 +1,97 @@
+/* USER CODE BEGIN Header */
+/**
+  ******************************************************************************
+  * @file    tim.c
+  * @brief   This file provides code for the configuration
+  *          of the TIM instances.
+  ******************************************************************************
+  * @attention
+  *
+  * Copyright (c) 2023 STMicroelectronics.
+  * All rights reserved.
+  *
+  * This software is licensed under terms that can be found in the LICENSE file
+  * in the root directory of this software component.
+  * If no LICENSE file comes with this software, it is provided AS-IS.
+  *
+  ******************************************************************************
+  */
+/* USER CODE END Header */
+/* Includes ------------------------------------------------------------------*/
+#include "tim.h"
+
+/* USER CODE BEGIN 0 */
+
+/* USER CODE END 0 */
+
+TIM_HandleTypeDef htim7;
+
+/* TIM7 init function */
+void MX_TIM7_Init(void)
+{
+
+  /* USER CODE BEGIN TIM7_Init 0 */
+
+  /* USER CODE END TIM7_Init 0 */
+
+  TIM_MasterConfigTypeDef sMasterConfig = {0};
+
+  /* USER CODE BEGIN TIM7_Init 1 */
+
+  /* USER CODE END TIM7_Init 1 */
+  htim7.Instance = TIM7;
+  htim7.Init.Prescaler = 84-1;
+  htim7.Init.CounterMode = TIM_COUNTERMODE_UP;
+  htim7.Init.Period = 65535;
+  htim7.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
+  if (HAL_TIM_Base_Init(&htim7) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
+  sMasterConfig.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
+  if (HAL_TIMEx_MasterConfigSynchronization(&htim7, &sMasterConfig) != HAL_OK)
+  {
+    Error_Handler();
+  }
+  /* USER CODE BEGIN TIM7_Init 2 */
+
+  /* USER CODE END TIM7_Init 2 */
+
+}
+
+void HAL_TIM_Base_MspInit(TIM_HandleTypeDef* tim_baseHandle)
+{
+
+  if(tim_baseHandle->Instance==TIM7)
+  {
+  /* USER CODE BEGIN TIM7_MspInit 0 */
+
+  /* USER CODE END TIM7_MspInit 0 */
+    /* TIM7 clock enable */
+    __HAL_RCC_TIM7_CLK_ENABLE();
+  /* USER CODE BEGIN TIM7_MspInit 1 */
+
+  /* USER CODE END TIM7_MspInit 1 */
+  }
+}
+
+void HAL_TIM_Base_MspDeInit(TIM_HandleTypeDef* tim_baseHandle)
+{
+
+  if(tim_baseHandle->Instance==TIM7)
+  {
+  /* USER CODE BEGIN TIM7_MspDeInit 0 */
+
+  /* USER CODE END TIM7_MspDeInit 0 */
+    /* Peripheral clock disable */
+    __HAL_RCC_TIM7_CLK_DISABLE();
+  /* USER CODE BEGIN TIM7_MspDeInit 1 */
+
+  /* USER CODE END TIM7_MspDeInit 1 */
+  }
+}
+
+/* USER CODE BEGIN 1 */
+
+/* USER CODE END 1 */
diff --git a/app/MDK-ARM/app.uvprojx b/app/MDK-ARM/app.uvprojx
index cd2bb0a..566c421 100644
--- a/app/MDK-ARM/app.uvprojx
+++ b/app/MDK-ARM/app.uvprojx
@@ -401,6 +401,66 @@
               <FilePath>../Core/Src/gpio.c</FilePath>
             </File>
             <File>
+              <FileName>tim.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>../Core/Src/tim.c</FilePath>
+              <FileOption>
+                <CommonProperty>
+                  <UseCPPCompiler>2</UseCPPCompiler>
+                  <RVCTCodeConst>0</RVCTCodeConst>
+                  <RVCTZI>0</RVCTZI>
+                  <RVCTOtherData>0</RVCTOtherData>
+                  <ModuleSelection>0</ModuleSelection>
+                  <IncludeInBuild>1</IncludeInBuild>
+                  <AlwaysBuild>2</AlwaysBuild>
+                  <GenerateAssemblyFile>2</GenerateAssemblyFile>
+                  <AssembleAssemblyFile>2</AssembleAssemblyFile>
+                  <PublicsOnly>2</PublicsOnly>
+                  <StopOnExitCode>11</StopOnExitCode>
+                  <ComprImg>1</ComprImg>
+                </CommonProperty>
+                <FileArmAds>
+                  <Cads>
+                    <interw>2</interw>
+                    <Optim>0</Optim>
+                    <oTime>2</oTime>
+                    <SplitLS>2</SplitLS>
+                    <OneElfS>2</OneElfS>
+                    <Strict>2</Strict>
+                    <EnumInt>2</EnumInt>
+                    <PlainCh>2</PlainCh>
+                    <Ropi>2</Ropi>
+                    <Rwpi>2</Rwpi>
+                    <wLevel>0</wLevel>
+                    <uThumb>2</uThumb>
+                    <uSurpInc>2</uSurpInc>
+                    <uC99>2</uC99>
+                    <uGnu>2</uGnu>
+                    <useXO>2</useXO>
+                    <v6Lang>0</v6Lang>
+                    <v6LangP>0</v6LangP>
+                    <vShortEn>2</vShortEn>
+                    <vShortWch>2</vShortWch>
+                    <v6Lto>2</v6Lto>
+                    <v6WtE>2</v6WtE>
+                    <v6Rtti>2</v6Rtti>
+                  </Cads>
+                  <Aads>
+                    <interw>2</interw>
+                    <Ropi>2</Ropi>
+                    <Rwpi>2</Rwpi>
+                    <thumb>2</thumb>
+                    <SplitLS>2</SplitLS>
+                    <SwStkChk>2</SwStkChk>
+                    <NoWarn>2</NoWarn>
+                    <uSurpInc>2</uSurpInc>
+                    <useXO>2</useXO>
+                    <ClangAsOpt>1</ClangAsOpt>
+                  </Aads>
+                </FileArmAds>
+              </FileOption>
+            </File>
+            <File>
               <FileName>usart.c</FileName>
               <FileType>1</FileType>
               <FilePath>../Core/Src/usart.c</FilePath>
@@ -431,16 +491,6 @@
               <FilePath>../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_tim_ex.c</FilePath>
             </File>
             <File>
-              <FileName>stm32l4xx_hal_uart.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_uart.c</FilePath>
-            </File>
-            <File>
-              <FileName>stm32l4xx_hal_uart_ex.c</FileName>
-              <FileType>1</FileType>
-              <FilePath>../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_uart_ex.c</FilePath>
-            </File>
-            <File>
               <FileName>stm32l4xx_hal.c</FileName>
               <FileType>1</FileType>
               <FilePath>../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal.c</FilePath>
@@ -515,6 +565,16 @@
               <FileType>1</FileType>
               <FilePath>../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_exti.c</FilePath>
             </File>
+            <File>
+              <FileName>stm32l4xx_hal_uart.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_uart.c</FilePath>
+            </File>
+            <File>
+              <FileName>stm32l4xx_hal_uart_ex.c</FileName>
+              <FileType>1</FileType>
+              <FilePath>../Drivers/STM32L4xx_HAL_Driver/Src/stm32l4xx_hal_uart_ex.c</FilePath>
+            </File>
           </Files>
         </Group>
         <Group>
diff --git a/app/app.ioc b/app/app.ioc
index a97d28d..1aba347 100644
--- a/app/app.ioc
+++ b/app/app.ioc
@@ -10,14 +10,16 @@ Mcu.Family=STM32L4
 Mcu.IP0=NVIC
 Mcu.IP1=RCC
 Mcu.IP2=SYS
-Mcu.IP3=USART1
-Mcu.IP4=USART2
-Mcu.IPNb=5
+Mcu.IP3=TIM7
+Mcu.IP4=USART1
+Mcu.IP5=USART2
+Mcu.IPNb=6
 Mcu.Name=STM32L432K(B-C)Ux
 Mcu.Package=UFQFPN32
 Mcu.Pin0=PA1
 Mcu.Pin1=PA2
 Mcu.Pin10=VP_SYS_VS_Systick
+Mcu.Pin11=VP_TIM7_VS_ClockSourceINT
 Mcu.Pin2=PA3
 Mcu.Pin3=PA6
 Mcu.Pin4=PA7
@@ -26,7 +28,7 @@ Mcu.Pin6=PA10
 Mcu.Pin7=PA13 (JTMS-SWDIO)
 Mcu.Pin8=PA14 (JTCK-SWCLK)
 Mcu.Pin9=PB4 (NJTRST)
-Mcu.PinsNb=11
+Mcu.PinsNb=12
 Mcu.ThirdPartyNb=0
 Mcu.UserConstants=
 Mcu.UserName=STM32L432KBUx
@@ -103,7 +105,7 @@ ProjectManager.StackSize=0x800
 ProjectManager.TargetToolchain=MDK-ARM V5.32
 ProjectManager.ToolChainLocation=
 ProjectManager.UnderRoot=false
-ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_SPI1_Init-SPI1-false-HAL-true,4-MX_USART1_UART_Init-USART1-false-HAL-true,5-MX_USART2_UART_Init-USART2-false-HAL-true
+ProjectManager.functionlistsort=1-SystemClock_Config-RCC-false-HAL-false,2-MX_GPIO_Init-GPIO-false-HAL-true,3-MX_USART1_UART_Init-USART1-false-HAL-true,4-MX_USART2_UART_Init-USART2-false-HAL-true
 RCC.ADCFreq_Value=64000000
 RCC.AHBFreq_Value=64000000
 RCC.APB1Freq_Value=64000000
@@ -147,10 +149,14 @@ RCC.USBFreq_Value=64000000
 RCC.VCOInputFreq_Value=16000000
 RCC.VCOOutputFreq_Value=128000000
 RCC.VCOSAI1OutputFreq_Value=128000000
+TIM7.IPParameters=Prescaler
+TIM7.Prescaler=84-1
 USART1.IPParameters=VirtualMode-Asynchronous
 USART1.VirtualMode-Asynchronous=VM_ASYNC
 USART2.IPParameters=VirtualMode-Asynchronous
 USART2.VirtualMode-Asynchronous=VM_ASYNC
 VP_SYS_VS_Systick.Mode=SysTick
 VP_SYS_VS_Systick.Signal=SYS_VS_Systick
+VP_TIM7_VS_ClockSourceINT.Mode=Enable_Timer
+VP_TIM7_VS_ClockSourceINT.Signal=TIM7_VS_ClockSourceINT
 board=custom