diff --git a/libraries/FreeRTOS/src/FreeRTOSConfig.h b/libraries/FreeRTOS/src/FreeRTOSConfig.h
index 29332cc..ff46df2 100644
--- a/libraries/FreeRTOS/src/FreeRTOSConfig.h
+++ b/libraries/FreeRTOS/src/FreeRTOSConfig.h
@@ -35,7 +35,7 @@ extern "C" {
 
 #define configUSE_PREEMPTION                1
 
-#define configCPU_CLOCK_HZ                  ( ( uint32_t ) F_CPU )          // This F_CPU variable set by the environment
+#define configCPU_CLOCK_HZ                  ( ( uint32_t ) F_CPU )              // This F_CPU variable set by the environment
 #define configTICK_RATE_HZ             		( ( TickType_t ) 100 )
 #define configUSE_16_BIT_TICKS             	0
 
@@ -48,7 +48,8 @@ extern "C" {
 #define configSTACK_DEPTH_TYPE              uint16_t
 
 #define configMINIMAL_STACK_SIZE            192
-// #define configISR_STACK_SIZE_WORDS          128 // todo сколько надо?
+/* don't define to reuse the stack allocated in the linker script via __freertos_irq_stack_top variable*/
+// #define configISR_STACK_SIZE_WORDS          128 
 #define configCHECK_FOR_STACK_OVERFLOW      1
 #define configUSE_TRACE_FACILITY            0
 
diff --git a/libraries/FreeRTOS/src/variantHooks.cpp b/libraries/FreeRTOS/src/variantHooks.cpp
index b915350..43e3838 100644
--- a/libraries/FreeRTOS/src/variantHooks.cpp
+++ b/libraries/FreeRTOS/src/variantHooks.cpp
@@ -38,24 +38,13 @@ extern void loop(void);
 
 /*-----------------------------------------------------------*/
 
-void initVariant(void) // todo удалить
+void initVariant(void)
 {
-    initTestPin();
     setup();                    // the normal Arduino setup() function is run here.
     post_init();
     vTaskStartScheduler();      // initialise and run the freeRTOS scheduler. Execution should never return here.
 }
 
-/*
- * Setup the timer to generate the tick interrupts. 
- * The basic settings have been applied at startup in function SystemInit(), 
- * now all that remains is to configure the machine timer comparison register 
- * and enable this interrupt.
- */
-// void vPortSetupTimerInterrupt(void) 
-// {
-
-// }
 
 /*-----------------------------------------------------------*/
 #if ( configUSE_IDLE_HOOK == 1 )