Advertising (This ad goes away for registered users. You can Login or Register)

PSVita Expansion Port

Open discussions on programming specifically for the PS Vita.
Forum rules
Forum rule Nº 15 is strictly enforced in this subforum.
Post Reply
deadlysync
Posts: 2
Joined: Wed Dec 26, 2012 7:53 pm

PSVita Expansion Port

Post by deadlysync » Tue Feb 04, 2014 12:52 am

Hi there guys!
Long, LONG time lurker, very little posts on this sweet forum!

Now that Yifan and katsu have hacked some of the Vita's internals, does anyone here knows what can be done with that infamous expansion port that is right next the game card slot?

Things like, "where does it map to?", "does it ends at the CPU?", "does it have a separated processor?", "can we... output video through it?", "what can we send through?", "is it read only or writable?", "voltages?", "does it work like a USB port?", "how fast is it?"

Those are some questions that I thought about.
Since I have zero hardware experience (tried soldering once, got all fingers burned, the contacts burned and nothing worked... yeah...) and I know near nothing about low level programming, I'm leaving my questions here.

Hope someone find it interesting and investigate it for us at /talk! :D
It is a very accessible port for users, and Sony says nothing about it, not even announcing any hardware to be connected there.

So, thank you for your time to answer these questions.
And thank you all for investigating the Vita hardware works!
Advertising

yifanlu
Guru
Posts: 760
Joined: Sun Mar 11, 2012 6:42 am
Contact:

Re: PSVita Expansion Port

Post by yifanlu » Tue Feb 04, 2014 4:05 am

deadlysync wrote:Hi there guys!
Long, LONG time lurker, very little posts on this sweet forum!

Now that Yifan and katsu have hacked some of the Vita's internals, does anyone here knows what can be done with that infamous expansion port that is right next the game card slot?

Things like, "where does it map to?", "does it ends at the CPU?", "does it have a separated processor?", "can we... output video through it?", "what can we send through?", "is it read only or writable?", "voltages?", "does it work like a USB port?", "how fast is it?"

Those are some questions that I thought about.
Since I have zero hardware experience (tried soldering once, got all fingers burned, the contacts burned and nothing worked... yeah...) and I know near nothing about low level programming, I'm leaving my questions here.

Hope someone find it interesting and investigate it for us at /talk! :D
It is a very accessible port for users, and Sony says nothing about it, not even announcing any hardware to be connected there.

So, thank you for your time to answer these questions.
And thank you all for investigating the Vita hardware works!
I don't know all about it, but I can answer some of your questions:
"where does it map to?" Three pins on the SoC CPU
"does it have a separated processor?" No
"can we... output video through it?" Qualified no. It seems like a general purpose port, and I could not find any continually between and known video outputs and any of the pins on the connector. However, if it's general purpose, a software update/feature could support outputting video.
"what can we send through?" I don't have any evidence except how it's laid out on the Vita vs. what I see on the VitaTV. I believe it's USB/USBOTG
"is it read only or writable?" It should be bi-directional
"voltages?" I haven't checked. It should be easy to do though. And you can easily confirm it's NOT USB if the voltages differ from specs.
"does it work like a USB port?" That's my guess
"how fast is it?" Hard to tell until something that interfaces with it is released
Advertising

Netrix
Posts: 82
Joined: Thu Jun 27, 2013 3:45 am

Re: PSVita Expansion Port

Post by Netrix » Fri Feb 14, 2014 7:11 am

yifanlu wrote:
deadlysync wrote:Hi there guys!
Long, LONG time lurker, very little posts on this sweet forum!

Now that Yifan and katsu have hacked some of the Vita's internals, does anyone here knows what can be done with that infamous expansion port that is right next the game card slot?

Things like, "where does it map to?", "does it ends at the CPU?", "does it have a separated processor?", "can we... output video through it?", "what can we send through?", "is it read only or writable?", "voltages?", "does it work like a USB port?", "how fast is it?"

Those are some questions that I thought about.
Since I have zero hardware experience (tried soldering once, got all fingers burned, the contacts burned and nothing worked... yeah...) and I know near nothing about low level programming, I'm leaving my questions here.

Hope someone find it interesting and investigate it for us at /talk! :D
It is a very accessible port for users, and Sony says nothing about it, not even announcing any hardware to be connected there.

So, thank you for your time to answer these questions.
And thank you all for investigating the Vita hardware works!
I don't know all about it, but I can answer some of your questions:
"where does it map to?" Three pins on the SoC CPU
"does it have a separated processor?" No
"can we... output video through it?" Qualified no. It seems like a general purpose port, and I could not find any continually between and known video outputs and any of the pins on the connector. However, if it's general purpose, a software update/feature could support outputting video.
"what can we send through?" I don't have any evidence except how it's laid out on the Vita vs. what I see on the VitaTV. I believe it's USB/USBOTG
"is it read only or writable?" It should be bi-directional
"voltages?" I haven't checked. It should be easy to do though. And you can easily confirm it's NOT USB if the voltages differ from specs.
"does it work like a USB port?" That's my guess
"how fast is it?" Hard to tell until something that interfaces with it is released
I don't think anything will be released for it. Isn't it missing from the slim Vita?

User avatar
fate6
Big Beholder
Posts: 7599
Joined: Fri Mar 09, 2012 1:18 am
Location: [fate6@Canterlot ~]$

Re: PSVita Expansion Port

Post by fate6 » Fri Feb 14, 2014 7:17 am

The PS2 Slim didn't have a HDD bay but that didn't stop devs from making use of the HDD(tho it was mainly in Japan and I think only FFXI required it)
Image
anon wrote:If you can't trust a 600 year old vampire in a prepubescent girl's body, who can you trust?

Light_Xela
Posts: 13
Joined: Sun Feb 02, 2014 11:40 am

Re: PSVita Expansion Port

Post by Light_Xela » Mon Feb 17, 2014 10:24 am

The PSVEP is an hdmi output confirmed by an official of sony.
http://us.playstation.com/psp/accessori ... sp-go.html

User avatar
psgarsenal
Posts: 84
Joined: Sun Feb 03, 2013 10:37 am
Location: /home/psgarsenal
Contact:

Re: PSVita Expansion Port

Post by psgarsenal » Mon Feb 17, 2014 11:47 am

your cable is for psp, not psvita

GonnaGetPSVita
Posts: 214
Joined: Fri Feb 24, 2012 2:08 am

Re: PSVita Expansion Port

Post by GonnaGetPSVita » Fri Feb 21, 2014 9:56 am

Light_Xela wrote:The PSVEP is an hdmi output confirmed by an official of sony.
http://us.playstation.com/psp/accessori ... sp-go.html
where do you come from ? mars ?
it's component av cable, not HDMI cable. lol
- PSVita 3G / 32GB
- PSVita Wifi / 64GB
- Wacom Cintiq 13HD
- AKG K701

Post Reply

Return to “Programming and Security”