Search found 86 matches

by uberlinuxguy
Fri Apr 24, 2015 2:06 pm
Forum: Programming & Software
Topic: Playing with SPI RAM
Replies: 133
Views: 80858

Re: Playing with SPI RAM

I sort of wonder if the "hold" pin on the SPI RAM module might be useful for that. It eats up another GPIO pin if you want to use it though (it's currently latched to either V+ or GND, I can't recall which) Or you can probably do it in software without it relatively "easily." But...
by uberlinuxguy
Thu Apr 16, 2015 1:51 am
Forum: Programming & Software
Topic: Playing with SPI RAM
Replies: 133
Views: 80858

Re: Playing with SPI RAM

Ok, so be nice to me, this is my first attempt, so gentle criticism is welcome... here is a .patch for the uzebox kernel code. I am working on the emulator support still, ran into an odd issue where the main thread just ... "hangs" so it's not yet done. Might post that anyway, in the other...
by uberlinuxguy
Mon Mar 16, 2015 9:16 pm
Forum: Programming & Software
Topic: Playing with SPI RAM
Replies: 133
Views: 80858

Re: Playing with SPI RAM

Just read into the ram from the SD, scroll into local ram as needed. Gauntlet seems like a good nail for this hammer. This was kind of what I was thinking, load the map into SPIRAM and scroll around the map from there. But I don't have nearly as much AVR Assembly experience as the rest of you all d...
by uberlinuxguy
Mon Mar 16, 2015 12:40 pm
Forum: Programming & Software
Topic: Playing with SPI RAM
Replies: 133
Views: 80858

Re: Playing with SPI RAM

Nice! Same for me, the minute I mounted them on pcb, everything worked with no other parts. Now I'm curious to see what you will do with those 4 chips when I still have to find usage for one! It think you'll have hard time to reset your console now. ;) I have not yet come up with a great idea, but ...
by uberlinuxguy
Mon Mar 16, 2015 3:07 am
Forum: Programming & Software
Topic: Playing with SPI RAM
Replies: 133
Views: 80858

Re: Playing with SPI RAM

So this is fun. Seems to eliminate all my odd problems. More stress testing is needed.... :ugeek: 8-)


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by uberlinuxguy
Thu Mar 12, 2015 2:27 am
Forum: Programming & Software
Topic: Playing with SPI RAM
Replies: 133
Views: 80858

Re: Playing with SPI RAM

I have not yet timed it. I have been focusing on writing some sort of API and breaking the SPI stuff out from the SD Card stuff so I can add stuff. And so things can be added in the future. I ran some more tests on the SD card code today and it seems my last round of changes broke it again. So a lit...
by uberlinuxguy
Wed Mar 11, 2015 12:16 pm
Forum: Programming & Software
Topic: Playing with SPI RAM
Replies: 133
Views: 80858

Re: Playing with SPI RAM

uze6666 wrote:Didn't even recall there was this option! :lol: That the most probable cause then.
Looks like that was it. It's back to 28-ish now that I took out -n.
by uberlinuxguy
Wed Mar 11, 2015 2:52 am
Forum: Programming & Software
Topic: Playing with SPI RAM
Replies: 133
Views: 80858

Re: Playing with SPI RAM

Well I did pass -n to disable sound. Wonder if that might matter.
by uberlinuxguy
Tue Mar 10, 2015 9:21 pm
Forum: Programming & Software
Topic: Playing with SPI RAM
Replies: 133
Views: 80858

Re: Playing with SPI RAM

uze6666 wrote:Ps: Uzem shows running at 60Mhz? Should not exceed 28.63Mhz normally...Did you disabled some parts of the code?
Hey that's neato. I didn't notice that. I wonder why.
by uberlinuxguy
Tue Mar 10, 2015 3:07 am
Forum: Programming & Software
Topic: Playing with SPI RAM
Replies: 133
Views: 80858

Re: Playing with SPI RAM

For those about to rock... FIRE!!!



:D 8-) :ugeek:

That is SPI RAM kernel code example running in the Uzem emulator. HOLY CRAP I learned a LOT!!