connection failed - u4vision

raminee · ‎2012-10-12

Posted on October 13, 2012 at 01:59

Hi

I am new to all this so please bear with me.

I have just received a STM32 Discovery board (ARMz32F100) and I setup the u4vision from Keil and the DISCOVER example code form STM.

But I get failures when I try to download to Flash. It seems the u4vision is not seeing the board.

I can see a red light on the board but that is just about it. No other actions.

The windows does not complain when I connect the board via USB so I assume the drivers are OK.

How can I figure out what is wrong ??

Is there a step to step guide on the setup procedures ?

I think it maybe a driver issue but who knows.

Ramin

#flash-download

frankmeyer9 · ‎2012-10-13

Posted on October 13, 2012 at 11:32

In the project properties, select ''ST-Link (deprecated version)'' - you might have done this.

Then click on the debugger options, and select SWD instead of JTAG.

Keil preselects JTAG, which is not supported by the Discovery board STLink part.