TKJ Electronics » USB http://elec.tkjweb.dk/blog The electronics-blog Sun, 20 Jun 2010 11:51:40 +0000 http://wordpress.org/?v=2.9.2 en hourly 1 STM32 USB Connection http://elec.tkjweb.dk/blog/2010/01/stm32-usb-connection/ http://elec.tkjweb.dk/blog/2010/01/stm32-usb-connection/#comments Mon, 25 Jan 2010 07:22:07 +0000 Thomas Jespersen http://elec.tkjweb.dk/blog/?p=243 The USB connection between the STM32 and the computer is finally working.
I’ve tried the different USB programs from the StdPeriph Library

Fx.

  • Virtual COM Port
  • DFU Programming

As I’m using Ride7 for programming, I can upload the project and sources if you want me too.

 

OBS: If you have projects which DOESN’T use the USB, you have to set the USB Disconnect jupmer to Ground (Pos. 1-2), as if not, the STM32 will stop in some kind of USB Interrupt trying to make a data communication with the computer, but it never comes as the STM32 doesn’t start one!

I discovered this  when I tried DFU’ing my 320×240 LCD code – and when I went back to normal .hex, it didn’t work – that was because I had to set the USB Disconnect to Ground!

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