[Gc-linux-devel] Re: HSP/Serial Port Question

[Simon L. <cr...@gm...>]

Woah, thanks. You've helped me quite a bit. I was wondering what 
protocol the hsp used, and I haven't worked with sdram yet.

And with regards to the connectors.. i guess... if i could find a broken 
GBA player... :)

 >Cryxia

Rob Reilink wrote:
> The 2 serial ports are a quite standard SPI protocol. I've connected SD 
> cards to it:
> http://home.student.utwente.nl/r.reilink/files/IMG_4917.JPG
> http://home.student.utwente.nl/r.reilink/files/gcnsd8.pdf
> 
> Speed is selectable between 1MHz and 27MHz. Should be easyly interfaced 
> to chips like 4021, or 4094, A/D chips or a microcontroller with 
> hardware slave interface like for example Atmel. ATMEGA. From there, you 
> could hook up PS/2 KB/mouse, IR receiver, and so on. Or even better: see 
> to program some CPLD to interface the sl811hs (or other) USB host 
> controller efficiently.
> 
> For the HSP port: I think you could try 2 pcb's glued together to get 
> the right thickness. Make just some contact fingers on them, and solder 
> a 3rd pcb perpendicular to it. It's interface is (seen the signal names) 
> compatible to standard SDRAM chips. Perhaps try to hook one up to it. No 
> clue about RAS/CAS sizes and timing. Challenging!
> 
> If you need even more ideas, just ask :)
> 
> Rob
> 
> Simon Lam wrote:
> 
>> Hello, I was wondering if anyone knew what kind of sockets these are. 
>> Mainly because I'm interested in making some hardware for them, or to 
>> use them for I/O etc. However you can't really do anything unless you 
>> can interface with the connectors.
>>
>> I'm thinking these aren't standard sockets, but I was wondering if 
>> that was true. I could fudge the 2 serial connections using a hobby 
>> pcb kit, but the HSP would be another matter. Anyone have any 
>> suggestions on what plug to use in any of these sockets?
>>
>> Oh, btw I'm new, and interested in practicing what I've learnt at uni =)
>> Nice to meet you all.
>>
>> >Cryxia
> 
> 
> 
> 
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