USB does not work on STM32F437VGT

Posted on June 08, 2015 at 16:56

Hello,

I made a new board using STM32F437 having USB FS connection.

My samples I evaluated on IAR STM32F429II board and USB FS.

The code generated by CubeMX runs out of the box with minor adjustments of stacksize.

The 429 board conencts to Win7 but there is not a glimpse using the 437 board. :(

The only difference is the crystal STM32F437@16MHz vs STM32F429@8MHz.

This can be adjusted easily by RCC_OscInitStruct.PLL.PLLM parameter.

I also checked the errata. It states that it should work if dual bank feature is disabled.

It is.

I have no glue whats going on. Any hints?

Regards, Adib.

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#usb #stm32f4 #fs

This topic has been closed for replies.

Associate III

Posted on June 08, 2015 at 18:53

I investigated any further:

using Keil usb hid sample I was able to work with my STM32F437 USB.

HTH, ADib.

Associate III

Posted on June 09, 2015 at 15:10

Hello,

I found _MY_ mistake. The bussensing in USB_FS properties was enabled even the pin not activated and on my pcb I put the vbus not on A9.

So sorry for the noise ;)

Adib.

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