Sean Meighan

Software => Xlights Setup => Topic started by: Santacarl on January 21, 2016, 05:37:40 PM

Title: E1.31 question
Post by: Santacarl on January 21, 2016, 05:37:40 PM

Hi All,

I'm adding on to the display and need to add some E1.31universes.  It's been a couple of years since I set up initially so I don't remember what the term "one output" in the E1.31 setup box is referring to.  When would you want to 'tick' the radio button to select this?

Thanks...SC

Title: Re: E1.31 question
Post by: markrvp on January 22, 2016, 05:46:29 AM

I'm pretty sure that means when you are outputting multiple universes on one SPI output.  It would look something like:

Universes 37-38     510x2

Title: Re: E1.31 question
Post by: Santacarl on January 22, 2016, 08:53:09 AM

Thanks for the response....I must be going brain dead.....What's an SPI output?

Title: Re: E1.31 question
Post by: JonB256 on January 22, 2016, 09:18:31 AM

SPI is the way you talk to pixels. (And many other things). Things like WS2811 and TM1804 are pixel chip designs that accept Serial data (one data bit at a time) at high speed, then reassemble into bytes that can be executed. It is why pixels can work with a single data line. Serial Peripheral Interface. The USB on computers is similar.

Title: Re: E1.31 question
Post by: Santacarl on January 22, 2016, 04:33:33 PM

Quote from: JonB256 on January 22, 2016, 09:18:31 AM

SPI is the way you talk to pixels. (And many other things). Things like WS2811 and TM1804 are pixel chip designs that accept Serial data (one data bit at a time) at high speed, then reassemble into bytes that can be executed. It is why pixels can work with a single data line. Serial Peripheral Interface. The USB on computers is similar.

Thanks for the explanation Jon..... Learning this stuff never stops and can be a bit intimidating to us laymen..  ;D