Tim 'mithro' Ansell
Tim 'mithro' Ansell
As the repository has moved forward, I've uploaded an older version of the schematic for the preproduction boards at https://github.com/timvideos/HDMI2USB-numato-opsis-docs/blob/gh-pages/pdfs/NumatoOpsis-schematic-v2-prototype-13-gb1c4312.pdf
Oh wait, that version is still too new. It has the decoupling capacitors. Will need to go back further.
From Anoop; > The diode direction(D12,D13 should be reverse for providing external RESET( Need to change in the schematic). > Cypress is enumerating if the FPGA is in not configured...
The desired behaviour is the following; - Shorting the reset switch caused both the FX2 and the FPGA to undergo a reset. - The FPGA is able to cause the...
We should also add a jumper which lets this line be totally disconnected.
https://github.com/timvideos/HDMI2USB-numato-opsis-hardware/issues/15
At the moment, the FX2 should come up as an unconfigured Cypress FX2 **but only if the FPGA is correctly configured**. Pin G22 (the Cypress Reset line) must be pulled...
A friend suggested the following circuits; from left to right - differentiator, (inverse) peak detector, ac coupler. I think you'll need to play with the values a bit to get...
The specification for this circuit is; - No matter the FPGA I/O pin state (high, low, high impedance or any voltage in between) - the Cypress RST pin _must_ go...
The boards have different features available, so while it comes up as an Opsis board you are not going to get any video from it with your current firmware.