Lpc2000

seangra wrote:

>Does anyone know (or have any references) for code for connecting an 
>SD card to the LPC2148?  I've seen the olimex specs and I know that 
>it's a basic SPI interface, but I'm just wondering about any other 
>actual documentation or code that uses this.
>
>Additionally how does the write protect circuit function?  I haven't 
>been able to find any documentation or specification that tells me how 
>the write protect circuit functions.  From what I understand it's a 
>simple basic switch, pins 10 and 14 get connected together when the 
>switch is closed.  But if this is the case, why did olimex hardwire 
>Vcc and Vss (via resistors) on this, why not just leave the pins 
>unconnected?  If I wanted to use the WP capability, do I just connect 
>one to pull-up'd Vcc, and the other to a GPIO on the LPC?
>
>  
>

Start here: http://www.elinux.org/wiki/MMC


-- 
Tom Walsh - WN3L - Embedded Systems Consultant
http://openhardware.net, http://cyberiansoftware.com
"Windows? No thanks, I have work to do..."
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