diff --git a/firmware/config/boards/proteus/board_configuration.cpp b/firmware/config/boards/proteus/board_configuration.cpp
index 1d086be2c6..f054007315 100644
--- a/firmware/config/boards/proteus/board_configuration.cpp
+++ b/firmware/config/boards/proteus/board_configuration.cpp
@@ -217,15 +217,15 @@ void setBoardDefaultConfiguration() {
 void boardPrepareForStop() {
 	#ifdef STM32F7XX
 	// enable EXTI on PD0 - CAN RX pin
-	palSetPadMode(GPIOD, 0, PAL_MODE_INPUT);
-	palEnableLineEvent(PAL_LINE(GPIOD, 0), PAL_EVENT_MODE_RISING_EDGE);
+	palSetPadMode(GPIOD, 0, PAL_MODE_INPUT); //Select Pin 0 on D Port - PD0, CAN RX as input
+	palEnableLineEvent(PAL_LINE(GPIOD, 0), PAL_EVENT_MODE_RISING_EDGE); // Set PD0 to interrupt on rising edge
 	#endif
 
 	#ifdef STM32F4XX
 	// enable EXTI on PA0 - The only WKUP pin F4 has.
 	PWR->CR |= PWR_CR_CWUF; //Clear Wakeup Pin flag for PA0
-	palSetPadMode(GPIOA, 0, PAL_MODE_INPUT);
-	palEnableLineEvent(PAL_LINE(GPIOA, 0), PAL_EVENT_MODE_RISING_EDGE);
+	palSetPadMode(GPIOA, 0, PAL_MODE_INPUT); //Select Pin 0 on D Port - PA0, Wkup
+	palEnableLineEvent(PAL_LINE(GPIOA, 0), PAL_EVENT_MODE_RISING_EDGE); // Set PA0 to interrupt on rising edge
 
 	#endif
 }
diff --git a/firmware/hw_layer/ports/stm32/stm32f4/mpu_util.cpp b/firmware/hw_layer/ports/stm32/stm32f4/mpu_util.cpp
index 7f0ceeffdd..2810b62f5c 100644
--- a/firmware/hw_layer/ports/stm32/stm32f4/mpu_util.cpp
+++ b/firmware/hw_layer/ports/stm32/stm32f4/mpu_util.cpp
@@ -30,7 +30,11 @@ uintptr_t getFlashAddrFirstCopy() {
 uintptr_t getFlashAddrSecondCopy() {
 	return 0x080C0000;
 }
-
+/*
+STOP mode for F7 is needed for wakeup from multiple EXTI pins. For example PD0, which is CAN rx.
+However, for F40X & F42X this may be useless. STOP in itself eats more current than standby. 
+With F4 only having PA0 available for wakeup, this negates its need.
+*/
 void stm32_stop() {
 	SysTick->CTRL = 0;
 	SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
@@ -45,7 +49,7 @@ void stm32_stop() {
 	boardPrepareForStop();
 	PWR->CR &= ~PWR_CR_PDDS;	// cleared PDDS means stop mode (not standby) 
 	PWR->CR |= PWR_CR_FPDS;	// turn off flash in stop mode
-	#ifdef STM32F429xx
+	#ifdef STM32F429xx //F40X Does not have these regulators available.
 	PWR->CR |= PWR_CR_UDEN;	// regulator underdrive in stop mode *
 	PWR->CR |= PWR_CR_LPUDS;	// low power regulator in under drive mode
 	#endif
@@ -59,7 +63,10 @@ void stm32_stop() {
 	// Lastly, reboot
 	NVIC_SystemReset();
 }
-
+/* 
+Standby for both F4 & F7 works perfectly, with very little curent consumption. Downside is that theres a limited amount of pins that can wakeup F7, and only PA0 for F4XX.
+Cannot be used for CAN wakeup without hardware modificatinos.
+*/
 void stm32_standby() {
 	SysTick->CTRL = 0;
 	SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
diff --git a/firmware/hw_layer/ports/stm32/stm32f7/mpu_util.cpp b/firmware/hw_layer/ports/stm32/stm32f7/mpu_util.cpp
index 2b9fe19e86..08018d23a9 100644
--- a/firmware/hw_layer/ports/stm32/stm32f7/mpu_util.cpp
+++ b/firmware/hw_layer/ports/stm32/stm32f7/mpu_util.cpp
@@ -174,7 +174,11 @@ void sys_dual_bank(void) {
      */
 }
 
-
+/*
+STOP mode for F7 is needed for wakeup from multiple EXTI pins. For example PD0, which is CAN rx.
+However, for F40X & F42X this may be useless. STOP in itself eats more current than standby. 
+With F4 only having PA0 available for wakeup, this negates its need.
+*/
 void stm32_stop() {
 	SysTick->CTRL = 0;
 	SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;
@@ -202,7 +206,10 @@ void stm32_stop() {
 	// Lastly, reboot
 	NVIC_SystemReset();
 }
-
+/* 
+Standby for both F4 & F7 works perfectly, with very little curent consumption. Downside is that theres a limited amount of pins that can wakeup F7, and only PA0 for F4XX.
+Cannot be used for CAN wakeup without hardware modificatinos.
+*/
 void stm32_standby() {
 	SysTick->CTRL = 0;
 	SCB->SCR |= SCB_SCR_SLEEPDEEP_Msk;