Rev 1.0 status tracking

gatecat / TrellisBoard

Ultimate ECP5 development board

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Rev 1.0 status tracking #5

Open daveshah1 opened 5 years ago

daveshah1 commented 5 years ago

Features tested so far:

[x] FT2232H JTAG and UART
[ ] FT2232H parallel mode
[x] USB powered
[x] 12V power circuitry and connector
[x] LEDs
[x] Buttons and DIP switches
[x] DDR3 (tested up to 400Mbps at present)
[x] Ethernet PHY
[x] TFP410 HDMI (tested up to 1080p30 at present)
[ ] USB ULPI PHY
[ ] Clock generator
[ ] PCIe
[ ] M.2
[ ] FFCs
[x] PMOD
[x] micro SD

ki5libs commented 4 years ago

Hi @daveshah1,

does FFC actual placement let you to use them? I see in the datasheet that actuator opens down so connector should be very close to the board edge. How is it really?

daveshah1 commented 4 years ago

I haven't actually got a suitable cable to test with. On the board I have, it seems to move in and out alright at least. But maybe they should be moved to the edge in the next revision.

ki5libs commented 4 years ago

Hi @daveshah1,

have you already checked clock from U26 oscillator? I'm just a little bit confused with not connected E/D pin...

daveshah1 commented 4 years ago

Hi @ki5libs, see #2 - it should be going into a PCLK pair on the left or right side, ideally near the DDR3. As it stands I've been using the 12MHz clock instead.

ki5libs commented 4 years ago

@daveshah1, yes, I saw that. Maybe I wasn't clear enough, I just want to ask did you check U26 output in general. Is clock OK on both OUT pins without external pull-up resistor. I didn't noticed that datasheet has information about internal pull-up. Sorry, nevermind.