About Mailson97

Mailson97 · 2025-02-19

Hello. I am working on a project that uses a STM32L496VET6 microcontroller and that can work as an USB device. The board has the following usb circuit schematic:The USB signals are connected directly to the MCU (D+ to PA12, D- to PA11, ID to PA10 and...

Mailson97 · 2024-07-21

Hello, everyone. I was trying to connect two prototypes in my computer: one containing a STM32L475 (connected through a ST-LINK V2) and the other using a STM32G474 (connected through a ST-LINK V3). The STM32CubeIDE warns about multiple ST-LINK connec...

Mailson97 · 2024-07-21

Hello, everyone. I am developing a prototype using a STM32L475 and the NOR flash memory MT25QL512ABB. I am using the QuadSPI peripheral for the communication with these parameters:I used the QSPI_ReadWrite_IT example as a reference to fill these para...

Mailson97 · 2025-03-17

I found out the problem. I was checking the PCB design of the prototype and I noticed that the VDDUSB pin was not connected. I connected the pin to VDD and the board now is being detected by the computer.

Mailson97 · 2025-02-19

Yes. I forgot to mention this detail, but I am using the STM32CubeIDE to generate the whole project and HAL drivers. Also, this MX_USB_DEVICE_Init() function is in the main.c file and the initialization seems fine, all the steps inside this function ...

Mailson97 · 2024-10-17

Hi @TDK, thanks for you answer and sorry for the delay responding. NRST wasn't attached to the programmer, only the NJTRST. I replaced the chip and as expected, it worked. Regarding the tests you recommended, I wasn't with the tools to do some of the...

Mailson97 · 2024-10-17

Hi @KDJEM.1 . Thank you for your answer and sorry for the delay in responding. Indeed, this is the problem I am facing, but I wasn't able to do any workaround. According to the memory datasheet, to write any register, I need to send the Write Enable ...

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STM32L496 not raising interruption on USB connection

STM32G474 died after trying to use two boards in the same computer (Error: ST-LINK error (DEV_TARGET_NOT_HALTED) )

Can't enable and disable writing in MT25QL512 external flash memory

Re: STM32L496 not raising interruption on USB connection

Re: STM32L496 not raising interruption on USB connection

Re: STM32G474 died after trying to use two boards in the same computer (Error: ST-LINK error (DEV_TARGET_NOT_HALTED) )

Re: Can't enable and disable writing in MT25QL512 external flash memory