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sd card and ex_fat.c

 
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dynamitron



Joined: 18 Mar 2009
Posts: 38

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sd card and ex_fat.c
PostPosted: Tue Apr 06, 2010 4:10 pm     Reply with quote
I try to use a sd card connected to a 18f2525.

I have tested the hardware with ex_mmcsd.c and I am able to store a value in a memory location and retrieve it to check if it fit with what I set. -> hardware is ok

Next I am trying to use ex_fat.c with no success : the card get initialised ok, I am able to create a file and a directory but when I try to append a file the pic hang up and I need to reset it.

I am using PCWHD 4.065

My config is like this
Code:
#include <18f2525.h>
#device PASS_STRINGS = IN_RAM
#fuses NOWDT, NOPROTECT, BROWNOUT, PUT, NOLVP,HS
#use delay(clock=4000000)   
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7)

#include <stdlib.h> // for atoi32

//media library, a compatable media library is required for FAT.
#use fast_io(c)
#define MMCSD_PIN_SCL PIN_C3 //o
#define MMCSD_PIN_SDI PIN_C4 //i
#define MMCSD_PIN_SDO PIN_C5 //o
#define MMCSD_PIN_SELECT PIN_C2 //o


Any idea ?

Thanks
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