Probably DOA board
#8
(05-03-2016, 01:29 PM)tomofdarkness Wrote: I'm sorry, but it was a really stupid design decision to both not include a power adapter AND make sure that 99% of all power adapters aren't going to work.  If the video works in just one mode, then that also doesn't meet the HDMI design spec.  These are things that I haven't had to deal with using competitor's boards.

I wont argue about the power, that was a faux pas of massive proportions. Here is the key, get a good supply. It sucks but it will help. Use a short good cable. https://www.youtube.com/watch?v=DbguMgNaMqo you can see in my video there that even a cable marked "Samsung" may be a pile of crap. The USB port specification 1.0 says a USB port cant supply more than 500ma. Phone chargers get around that by doing special negotiations ranging from a simple pull down resistor on the data line to a complex conversation that can then make the charger output 12v @ 3A or potentially more. The reason they all start with 500ma is early devices had no protection from over-current so plug in the wrong device to something that can provide a few amps and poof. The device should have had a standard power jack but its easier to sell with microusb. 

The HDMI issue is flat out idiotic. We are probably weeks if not months form a solution on that based on what I have seen tllim say. 

Am I shocked, no, annoyed, yes.
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Messages In This Thread
Probably DOA board - by tomofdarkness - 05-03-2016, 11:18 AM
RE: Probably DOA board - by rahlquist - 05-03-2016, 12:10 PM
RE: Probably DOA board - by tomofdarkness - 05-03-2016, 12:22 PM
RE: Probably DOA board - by rahlquist - 05-03-2016, 01:17 PM
RE: Probably DOA board - by tomofdarkness - 05-03-2016, 01:29 PM
RE: Probably DOA board - by rahlquist - 05-03-2016, 01:41 PM
RE: Probably DOA board - by tkaiser - 05-03-2016, 02:22 PM
RE: Probably DOA board - by tomofdarkness - 05-03-2016, 05:32 PM
RE: Probably DOA board - by tkaiser - 05-04-2016, 01:50 AM
RE: Probably DOA board - by tkaiser - 05-03-2016, 12:30 PM
RE: Probably DOA board - by tomofdarkness - 05-03-2016, 12:51 PM
RE: Probably DOA board - by tomofdarkness - 05-03-2016, 02:08 PM
RE: Probably DOA board - by rahlquist - 05-03-2016, 02:19 PM

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