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Various newbie questions ( USB Driver Development on PSP )

 
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AudioMonster



Joined: 07 Sep 2005
Posts: 37
PostPosted: Wed Sep 07, 2005 4:36 am    Post subject: Various newbie questions ( USB Driver Development on PSP ) Reply with quote
Hi, i am new to the PSP and i would like to know if it is possible to entierely develop and test a USB driver for the PSP using the free toolchain that we have.
My goal would be to plug an external sound card to the PSP to capture, process, and send audio thru this card.

I know this sounds very stupid, but, can i actually test my driver and my program on a non-modified PSP ?

Is it a common thing to make use of assembly language on the PSP ? Has anybody done it here ? Do you have any example on how to call assembly routines from C ?

Would you have any link on a documentation on the various PSP chips (especially Audio, USB and microprocessor) ?

Sorry for asking so many questions !
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Agoln



Joined: 08 Jun 2005
Posts: 326
Location: Fort Wayne, IN
PostPosted: Wed Sep 07, 2005 7:45 am    Post subject: Reply with quote
Quote:
I know this sounds very stupid, but, can i actually test my driver and my program on a non-modified PSP ?

As for right now, all homebrew works on v1.0 and 1.5 PSP's without any "modification" to the actual unit itself. You have to store some files on a memory stick, but that's all.

Quote:
Is it a common thing to make use of assembly language on the PSP ? Has anybody done it here ? Do you have any example on how to call assembly routines from C ?
Yes, look in SVN (svn://svn.pspdev.org) for a lot of examples on how the PSPSDK uses asm.
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