So far I've confirmed that all of the power rails are operational, the on-board USB programming circuit works, and the FPGA can be programmed. The LED counter didn't run when I loaded titan_wiggle, so I'll need to debug a little tonight.
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| Figure 1. First Rev C. |
1 comment:
It turns out the PERSTn was working correctly, just not as I expected. On most mother boards PERSTn is asserted for 100-200ms just after power is applied, then de-asserted.
On the Hummingboard-i2ex that I'm using, PERSTn is asserted at power-on and only de-asserted when an OS loads that includes support for PCIe (ie. Debian Jessie).
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