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STM32 MCUs Embedded software

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Trouble with STM32H7 bootloader

Hello,we have some trouble with STM32H742, trying to flash it via bootloader. It seems to accept only every second line of a hex file. We receive a hexfile with another microcontroller, build the bootloader commands and perform the bootloader communi...

STM32L496 Virtual COM "USB device not recognised"

I'm using an STM32L496 on a custom board and using USB CDC configured through CubeMX (STM32Cube FW_L4 V1.14.0). This connects to a Windows 10 laptop. Randomly I get "USB device not recognised". I can go days without the issue and then it suddenly ap...

Paul3 by • Associate II
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Resolved! How to determine USB Data OUT end of packet

I'm busy with a USB to Ethernet implementation using the ST USB library and LwIP.When I send a packet to the host (Data IN) that came from the ethernet interface, I know where is the end of an ethernet frame send a zero length packet (ZLP) accordingl...

bluscape by • Associate III
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  • 6 replies
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When is HAL USB ready for me to send?

I have taken the STM32Cube_FW_F1_V1.8.0 example CDC_Standalone and adapted it to my purposes. The original example intends to forward bi-direction USB communication over a serial port. I have removed the serial port stuff and intend to simply send me...

Hi ,i have created a file stm32.txt by porting fatfs into flash and verified write and read baremetal,now can this file be visible to my pc if i bring up and add an usb interface msc device config.Is this possible .

I have done this: 1) created a file using fatfs on flash open and read ,it is working. 2) created a usb interface configured as msc device,when plugged into pc, new drive gets created, however it asks to format it. I have added only read functionali...

svii by • Associate III
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  • 6 replies
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Maybe bug in STM32Cube_FW_F7_V1.15.0

In file "STM32Cube_FW_F7_V1.15.0\Projects\STM32F769I_EVAL\Applications\LwIP\LwIP_IAP\Src\ethernetif.c "function "void HAL_ETH_MspInit(ETH_HandleTypeDef *heth)"maybe some jumper settings for 'Ethernet Half duplex mode' are incorrect:False, TrueSB36 is...

Slh by • Senior
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  • 1 replies
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