playstation controller sx helper

Owen

I'm trying to build a playstation controller interface according the the nuts & volts article: www.parallax.com/dl/docs/cols/nv/vol7/col/NV129.pdf

I have built up and programed the sx chip from the articles code, but cant seem to get it to work with my propellar. the only thing I changed in the sx code was setting the serial IO pin that goes to the propellar to cmos level and put a 1k resistor in series with the props pin. Am I missing something, is there anything else that would need to be done in order to interface the sx and prop?

i'm using full duplex serial (15,15,%1100,38400) to talk to the sx chip. Is it ok to use the same pin for TX and RX with full duplex serial? or do I need to use a one wire serial object?

the sx chip is programed to talk to the basic stamp so the serial line is inverted. Is %1100 a corect setting for full duplex serial?

I would try to write my own program in SXB to talk directly to the propellar with both TX and RX pins if I knew anything about programing SX chips (maybe in the future) so for now i'm stuck using the code from the article.

has anyone built this interface and maybe has a spin test program for it?

thanks
Owen

CJ

I have not used any bidirectional serial with the prop, but I have actually used the PS controller directly with a propeller. if you're interested I could dig up the code for it if you.

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Post Edited (CJ) : 3/11/2007 6:58:00 PM GMT

Owen

code to directly interface would be great! I want to use the sx chip as an interpreter between the PSX controller and the prop to reduce io lines but atleast with direcconection I can confirm my controller works. Do you have a conection diagram?

thanks
Owen

CJ

it uses a cog to update the controller data regularly
the connection diagram is included in the object.

please note that the pins are based on the console side connector the controller plugs into

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mahjongg

Funny, I was also thinking about designing a playstation interface for the Hydra, and earlier today AndreL told me (in the Hydra forum) that it was possible to find a playstation controller connector at lynxmotion, so I Googled for it, and here is the info:

www.lynxmotion.com/Product.aspx?productID=73&CategoryID=

These is also some protocol information to be found there, but not as complete as the nuts and volts article.

I guess I don't need to bother to design one now anymore .

Mahjongg

p.s. The tread I was talking about is the " HYDRA SRAM CARD COMMING SOON..." thread.

Post Edited (mahjongg) : 3/11/2007 11:46:54 PM GMT

CJ

maybe I should clean it up real good and submit it to the object exchange

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Owen

Thanks for the code!
it's working great for me and I think it would be a good addition to the object exchange

Owen

CJ

good to hear

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Stan671

I cannot believe the perfect timing of this thread.· I just ordered on of those wireless PS2 controllers amd interface cables from Lynxmotion and was beginning work on a method to support it.· Thank you, CJ, for the code to get me started.· This forum is GREAT!

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Stan Dobrowski

CJ

I have not yet been able to get it to work with a wireless controller reliably, wired is rock solid. it may have to do with the clock speed being low, I will probably recode it in asm to see if the speed is the issue

if it works, please let me know so I can list it as a tested model

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