[Cryptech Tech] FMC Arbiter

[Fredrik Thulin]

On Monday, August 31, 2015 12:36:59 AM Павел Шатов wrote:
> On 30.08.2015 23:40, Fredrik Thulin wrote:
...
> > It is as if some condition of high/low pins on the pins of the connector
> > will prevent the A9 on the Novena from booting. How could that be? I
> > thought only the Spartan-6 on the Novena was connected to the connector
> > we plug into.
> Yes, I have similar problem! I use STM32F429-DISCO board to program my
> dev-bridge. It has two jumpers, that switch it into ST-LINK mode. My
> Novena won't boot, when this programming board is powered. To start my
> Novena, I disconnect USB cable from the DISCO board, power up Novena,
> and then re-connect DISCO board. I don't understand, what prevents
> Novena from booting, when ST-LINK interface is powered.

I added a delay of 60 seconds right after MX_GPIO_Init() (patch attached), and 
what do you know - suddenly I can boot the Novena with a Novena-powered dev-
bridge board attached =).

/Fredrik
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