[HELP] Raspberry Pi Zero W V1.1 - Test Pads problem

Raspberry Pi hardware discussion (including peripherals)
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drafterITA
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[HELP] Raspberry Pi Zero W V1.1 - Test Pads problem

Post by drafterITA » Sat Mar 25, 2017 9:14 am

Hello Community,
I'm facing a problem and I can't find a specification document on the internet about the new RPi Zero W, the one with the built in wifi.
My problem is the back of the RPi where the Test Pads numbers on the SDCard reader are missing.. that's no biggie.. more or less the position is the same from the old RPi Zero (non wifi).
I was in the process of hooking the card reader from [mention]prerunnerseth[/mention] to the cartridge slot from a dslite and following [mention]wermy[/mention]'s video video where he shows how to wire the pins on the cartridge slot to the RPi.
Well.. the test pad on the left side (3.3V, green wire in the video) is not there on the RPi Zero W in my possession. I'll attach a screenshot.

Can anyone help me here? :)

RPi Zero W V1.1
Image

RPi Zero V1.3
Image

Edit: I should point out that on the official Raspberry Pi website, in the schematics page, the Zero W pdf is missing :(
https://www.raspberrypi.org/documentati ... /README.md
Cheers! :D
drafterITA


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Re: [HELP] Raspberry Pi Zero W V1.1 - Test Pads problem

Post by drafterITA » Sat Mar 25, 2017 12:27 pm

VeteranGamer wrote:this may help.....

the square GPIO next to the GND is a 3.3v
After feeling miserable for 1 hour after searching on the Internet for an answer I actually turned on my brain and came to your same conclusion :)
Thank you very much for the confirmation of the 3.3v on the GPIO :)

The afternoon ended with the cartridge working fine and retropie booting correctly :D
I'll post some pictures tomorrow :D
So satisfying!!!
Cheers! :D
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Re: [HELP] Raspberry Pi Zero W V1.1 - Test Pads problem

Post by drafterITA » Sat Mar 25, 2017 11:31 pm

The promised pictures, wiring to the cartridge reader's pins was nerve wrecking hahaha! :)
I really thought it won't work.. but when retropie booted I was literally jumping around in my room :D

[spoiler="here we go"]Image
Image
Image[/spoiler]
Cheers! :D
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Re: [HELP] Raspberry Pi Zero W V1.1 - Test Pads problem

Post by Pap » Tue Apr 04, 2017 6:34 am

can i ask why u are wiring the cart reader to tthe pi? just for SD support inside the cart enclouser?

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Re: [HELP] Raspberry Pi Zero W V1.1 - Test Pads problem

Post by Eccho » Tue Apr 04, 2017 8:13 am

Pap wrote:
Tue Apr 04, 2017 6:34 am
can i ask why u are wiring the cart reader to tthe pi? just for SD support inside the cart enclouser?
He probably uses PreRunnerSeth's PCB for microSD card inside the cartridge (just guessing from the wiring).

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Re: [HELP] Raspberry Pi Zero W V1.1 - Test Pads problem

Post by drafterITA » Tue Apr 04, 2017 8:17 am

Eccho wrote:
Tue Apr 04, 2017 8:13 am
Pap wrote:
Tue Apr 04, 2017 6:34 am
can i ask why u are wiring the cart reader to tthe pi? just for SD support inside the cart enclouser?
He probably uses PreRunnerSeth's PCB for microSD card inside the cartridge (just guessing from the wiring).
That is correct :)
Cheers! :D
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Re: [HELP] Raspberry Pi Zero W V1.1 - Test Pads problem

Post by TheMaddModder » Fri Apr 07, 2017 7:52 pm

Ok someone has to help me out here. I have wired this thing every which way and still cant figure it out. Everything has gotten pretty beaten up since i did it so many times -- Can anyone point me in the right direction?
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image4.JPG (940.21 KiB) Viewed 11378 times

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Re: [HELP] Raspberry Pi Zero W V1.1 - Test Pads problem

Post by drafterITA » Sat Apr 08, 2017 12:46 am

Uhm.. You're using the original gameboy cart reader, so I can't be sure (I used the ds lite gba cart reader). In my pictures you can see that I used the left hand side pins for the wiring.
What you can do to understand exactly is use a multimeter to check the pins..
Cheers! :D
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Re: [HELP] Raspberry Pi Zero W V1.1 - Test Pads problem

Post by TheMaddModder » Sat Apr 08, 2017 8:49 am

Maybe its a dumb question, but how can i check the pins? On the left side of the cart there are those extra pads that i can check but for the side that actually used the sd card, I do not see how I would be able to check.

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