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msimplicio
Joined: 18 May 2010 Posts: 3
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Posted: Wed May 19, 2010 7:51 pm Post subject: Problem when writting on persistent data |
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I?m having trouble managing persistent data and EEPROM<->RAM relationships. I want to store an array as persistent data. For this, I defined the following structure:
typedef struct _appData
{
u8 length;
u8 *contents;
}appData
If I make:
u8 i;
u8* edata = emalloc(length);
for(i = 0 ; i < length; i++){
wb(&edata[i], i);
}
I do can read the bytes using ?rb(&edata[i])?. However, if I make (as suggested in the ?fake_sim.c? example):
appData *p = app_data();
ww (&p->contents, edata);
I am unable to read the bytes using ?rb(&p->contents[i])? afterward.
Any ideas on what is wrong?
Thank you!
BR,
Marcos |
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pz Guest
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Posted: Thu May 20, 2010 6:08 am Post subject: |
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Read the pointer first, u8 * edata=rw(&p->contents); and then use rb(&edata[i]); |
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msimplicio
Joined: 18 May 2010 Posts: 3
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Posted: Wed Jun 09, 2010 12:51 pm Post subject: |
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It becomes just obvious when you say it...
Thanks a lot for saying it!!!
Marcos. |
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