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Stratosstratos
Associate III
since ‎2024-12-16
‎2025-01-10

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  • 15 Posts
  • 2 Solutions
  • 7 Kudos given
  • 2 Kudos received

User Activity

Configuration Descriptor Request Failed-Nucleo-f439zi

2025-01-10
Hello , I am trying to write a USB OTG FS code from scratch (in Device mode) .At this point i can receive and send control transfers .For the Device Descriptor and Set address commands there seem to be no issue but with the Configuration Descriptor t...

No HSE output using MCO1

2025-01-09
Hello,I am trying to output the HSE to a GPIO PA8.I want to do it from scratch and have added this code to the HID example from ST. RCC->AHB1ENR |= RCC_AHB1ENR_GPIOAEN; // Enable GPIOA clock GPIOA->MODER &= ~GPIO_MODER_MODE8; // Clear the...

Nucleo-f439zi, Invalid USB Packet ID (0xda)

2025-01-08
Hello, I am writing USB OTG from scratch for a Nucleo-f439zi. Till now I have managed to make it reply to some Setup requests, to be more specific it replies to Device Descriptor and set Address , ( I am currently figuring out Configuration request w...

Nucleo-f439zi, Device Descriptor Request Failed, USB_OTG_FS from scratch

2024-12-19
HelloWe are using the Nucleo-f439zi (STM32F439ZITbu microcontroller) https://www.st.com/resource/en/reference_manual/dm00031020-stm32f405-415-stm32f407-417-stm32f427-437-and-stm32f429-439-advanced-arm-based-32-bit-mcus-stmicroelectronics.pdfWe have s...

nucleo-f439zi USB from Scratch falling into Hardfault

2024-12-16
Moved from MPUs forum as STM32F4 is an MCU. Hello, Im trying to write the USB code from scratch. I have written the code that enables and initializes the usb OTG and I can confirm that it receives SETUP packets in the RX FIFO.  I am receiving the GE...
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