AnsweredAssumed Answered

First boot on new target board

Question asked by miller.dave on Jun 19, 2013
Latest reply on Jul 26, 2013 by CS
Powered up newly designed board today.
Of course it seems not to work. :-(
Its based on Discovery board.
I currently have only the STM portion populated.
The Oscillator pins are both low. Using a 8 Mhz Xtal and 20 pf caps. I would of expected one high one low and oscillating.
Part is STM32F407VGT6
100QFP
I seems to have 3.3V and 1.8 on P73 and P49
Reset goes both low and high with reset switch.
Seems to draw 7.5ma.
Anyone got a checklist to go through? Ohmed out power and ground on board. Might have missed something. But doubt it.
I believe I have PDR and Boot0 and Boot1 properly.
Other than the obvious that the board does not work any ideas?
Will not connect using ST-Link V2.
Where I am shooting myself in the foot?

Thanks
Wounded in Surrey
Dave


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