On Fri, Sep 30, 2011 at 4:45 AM, wrote: > Don't forget that will be using the 4 bit parallel interface, not the SPI > interface. The SPI interface is really a legacy interface that does not s= eem > to be well supported. Go and look at Joe's (IVP) thread over the last mon= th > or so about interfacing an SD card using SPI. > True, there's probably information on the net for that. Also, could reverse engnieer the signals. How much more complicated could they be over the normal SPI commands? Address, write, address write, etc... > To use the parallel interface you really need to be a member of the SD > group to get the required documentation, although there is some in the wi= nd, > if you can find it. > Oh I'll be able to find it :P (Hopefully) > But I am confused about what sort of analyser you are attempting to build= .. > When you first posted I got the impression that you were looking at 'self > capturing' what was happening on a PIC32, but now I get the impression yo= u > are building something to capture waveforms on other equipment. Is this > correct? > I'm sorry for any confusion. The truth is, I'm trying to capture data that my printer sends to its various serial devices (EEPROMs/RAM) and analyze it so I can "hack" into it. There's no way in hell I'm spending $200 to buy ne= w cartridges when I can refill them myself for $20. Yes, I know, there are already solutions out there to circumvent this, such as toner chips (which I'm currently trying to reverse engineer), reset page count on the serial EEPROM (which is why I requested 24c64s), but doing it myself is so much more fun, and I get to learn things I would otherwise not have. Principles. Just messing around, I already became more familiar with the PIC32 and how it uses interrupts for pin change, timer interrupts, DMA, SPI and I2C module, USB module for generic interface, CDC interface, how to push it to its limits, etc. Now I'm going to destroy a few SD cards, then whip out the FPGA and see wha= t I can do with its onboard high speed (80MHz) RAM and the ability to run it at around 333MHz. I'll probably have to run it at 60MHz anyway, since my oscilloscope (thanks again Sean) can't go that high. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .