About marknorton9

marknorton9 · 2012-11-20

Posted on November 21, 2012 at 01:46Hi All, I am having a problem the STM32F4 USB library labeled version 2.1.0. If I start the device and then plug in the USB, all is good. If I have the USB connected and start the device, my PC will not recogniz...

marknorton9 · 2012-11-21

Posted on November 21, 2012 at 13:44I think I have found the problem or at least a work around. The 1.5K pullup resistor on the USB_DP pin is always tied to 3.3V in our design. If I set this pin to an output low after reset and allow the stack to ...

marknorton9 · 2012-11-20

Posted on November 21, 2012 at 01:53As a matter of fact, I just did this today. I simply created function pointers to those functions that I want to access from the main application. I created these as const so that they would be stored in flash. ...

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STM32F4 USB device library - won't recoginize device on reset

Re: STM32F4 USB device library - won't recoginize device on reset

Re: BootLoader functions use in Application