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geaz / simplyRetro-Z5

A 3D printed, five inch retro gaming handheld.
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Audio Circuit Inconsistencies #5

Closed batorni closed 5 years ago

batorni commented 5 years ago

In the audio circuit diagram/image, it shows the 5V + on the PAM going to the 5V Pin on the Pi, however, in the image of the completed build, it looks like that line is actually going to pin 1, 3.3V Power.

geaz commented 5 years ago

You are toally right. Per specification the PAM needs 5V, but in this build it runs fine with 3.3V, too.

batorni commented 5 years ago

Neat! I've got mine wired up to a 5V pin, but I'm still trying to get the darn thing to boot, so I was unsure if the audio worked or not

geaz commented 5 years ago

Are you using the simplyRetro image? If you have any problems with it, feel free to open an issue. Will try my best to help you.

batorni commented 5 years ago

Yeah, I'm using v1.3 provided here: https://github.com/geaz/simplyRetro-Z5/releases

It doesn't seem to boot via the power button, and I'm not seeing any lights from the powerboost either. If I plug in power to the pi directly, the powerboost turns on as well as the light on the pi turns on, but the screen isn't turning on either. I think I may have connected the screen power incorrectly. I wired the spliced USB cable to test pads 22 and 23 on the pi, rather than attaching them to test pads 1 and 6 alongside the power from the powerboost.

I need to re-check all my circuits tonight. I went all in and didn't do any intermediate testing so I'm paying for it now :)

I'll open up an issue if I'm still facing issues tonight.