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Rayman
Posts: 15,464
in Propeller 2
Here's a game console based on the @Wuerfel_21 emulators and the P2 SWaP module.
This was my son's idea. He thinks that if it is home made, he will be able to bring it to school.
(But now he's wondering what kind of lawyers we have access too 
He came up with the name too...
Anyway, was already making this Eval style adapter for these 2.3" display modules when decided we could just squeeze a Stamp module in underneath and make it stand alone.
Appears to be working. Just need to add speakers and some kind of power supply (right now is USB-C powered).
Needs Prop Plug for now to program.
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Testing with this wireless USB NES controller. Might keep that and find a way to make the controller detachable from the enclosure...
I guess this is where having an SD program loader would come in.
Also cool things happening on forum right now.
Spam-tastic!
Downloaded one from @pik33
Seems fairly straightforward... Copy binary to PSRAM. Then, copy PSRAM to HUB, stop all other cogs and reboot.
@RossH Has a version that doesn't need PSRAM. But, this has it, so might as well use it...
Suppose without lcd could add a second P2 to Eval style P2 board…
Not thinking that is particularly useful though…
Suppose should have added HDMI output. Think can do HDMI and LCD6 at same time, right @Wuerfel_21 ?
Not with 1 cog. I think you could detect the HPD signal on the HDMI port and decide the mode on that. But hot-switching would be difficult.
Ok, thanks. Now wondering if LCD will keep displaying an image if LCD6 input stops. Imagine not, but guess should try...
Was going to make a unit with HDMI output as a separate project, but now think they can be combined into one.
Found a little 2 port USB hub that should work nicely for 2 player...
No, it'll go into this weird lock-up state where the image fades to white.
@Wuerfel_21 Is there a way to control volume in the code?
Yes and no. There's some values in the code that control volume, but they're not really meant to be changed. If you digitally reduce the signal amplitude, you do not lower the DAC noise floor, so it's not really a great idea. If it's about making it louder: There's kind of a problem there, the audio synthesized by sound chips naturally has rather high dynamic range, so it's rather quiet compared to, e.g. playing WAV files of pop music.
Ok, have to decide between digital and mechanical pot…
Mechanical might add to retro vibe…
mechanical is good in that it will keep state across resets/different apps.