STM32 MCUs Embedded software

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How to signal NAK on USB Bulk Out endpoint

My USB device has an input buffer of limited size. If the buffer is full the USB driver should respond with a NAK to any incoming data packets until the buffer has enough space for new data again. How can my application signal this buffer-full condit...

WKurz.1 by Associate
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how to check remaining heap size

We are using stm32h750xb for our project running uC/OS-II RTOS.Question: is there a way to check the remaining heap size for the system at any point of time after the product is up and running.

ckw089 by Associate II
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  • 5 replies
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STM32H753I-EVAL board USB OTG HS connection

The PHY chip for HS is USB3320. On the SCH part of UM2198, PIN32 of USB3320 is optional connect to MOSFET. Is it for power on sequence purpose? I can not find the power up sequence requirement for this.Is it requirement of H753's HS OTG?

JZou.2 by Associate II
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Resolved! IAP bootloader not working with FREERTOS application

I have build a IAP bootloader at 0x8000000 and test with a simple blink app at 0x8040000 which works fine but if I add FreeRTOS for the same blink app at 0x8040000 its not working. It jump to the blink application but it doesn't pass the SystemClock_...

S_1 by Associate III
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  • 7 replies
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How to modify existing bootloader.

Hi, I need to modify the bootloader of the STM32F427 MCU.Specifically, I need to modify the UART portion of the bootloader so that it works with RS485.This should just involve adding a control line for direction flow.So, my questions: Is the source c...

ADINV by Associate II
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  • 1 replies
  • 0 kudos