About greatbena

greatbena · 2016-01-19

Posted on January 19, 2016 at 14:16I have a STM32F411 Discovery board, when I use the latest CubeMX to generate templates that configure the board as a USB device audio class, the board doesn't get recognized by the host computer (as in, the compute...

greatbena · 2018-05-26

Posted on May 27, 2018 at 03:48Just making sure, does your board include a USB HS physical layer? Neither STM32F7 nor STM32H7 provide an integrated USB high speed PHY, so you will need an external IC to use USB high speed mode. Typically UAC 2.0 is ...

greatbena · 2018-05-24

Posted on May 24, 2018 at 14:32You can find some examples of UAC2 descriptors online, such as from one NXP document:https://www.nxp.com/docs/en/user-guide/USBUG.pdfAlternatively, if you have access to a device that implements UAC 2.0, such as XMOS b...

greatbena · 2018-05-03

Posted on May 04, 2018 at 05:22I have the same problem here with STM32H743, when USB DMA is disabled, both transmit and receive isochronous transfers are working fine, but with DMA enabled, receive still works, but isochronous transmit doesn't, resu...

greatbena · 2016-01-21

Posted on January 21, 2016 at 13:09I think I've found a solution. By changing the value of RCC_OscInitStruct.HSEState from RCC_HSE_BYPASS to RCC_HSE_ON in main.c, the USB device is successfully recognized. So this is a bug of CubeMX, then?

greatbena · 2016-01-20

Posted on January 20, 2016 at 11:50Thanks for your input. I checked the PLL settings in CubeMX, the default setting generates the correct 48MHz clock at the output of PLLQ. My new discovery is, when I program a F407 board with the USB project genera...

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Using CubeMX for STM32F411: USB Device code not functional

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