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? Thanks for any help.
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LPC2148 and SD and Write Protect
2005-10-31 by seangra
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