Search found 22 matches

Thanks Ttelmah.

I will add these. Let's see what happens this time.

good works.

Thanks asmallri.
I will make your gestures step by step.

Thanks for helping Ttelmah.

check_fs() --> return 0

there is all the data here. Sorry I could not assign a picture here. I gave you a link.

image link: https://drive.google.com/open?id=1W ...

Yeah. I did what you said. For example, in the 5th sector 0x21, 0x54, etc. I've written. Then I read them correctly. If I had not read the sectors and had not written it, pf_mount () would give an err ...

The pic18f4431 is not specified to work below 4.2V
If you are powering it from a 3.3V regulator any number of things may intermittently not work.

Thanks, I know.

Ttelmah i am used a lot of library for sd card. I read and wrote sd kart sectors. But FAT did not work.
Now I will design a circuit with pic18f. I'll do it by checking step by step. Sleep is forbidde ...

thank you very much Ttelmah and temtronic..
Does the SD card draw much current? If so, it means 100% hardware problem. Because SD card + Pic + etc. It is fed from 3v3 regulator.
(Regulator max. outp ...

I will go nuts. would you look at the following line:

\ff.c" Line 544(59,60): Undefined identifier TBL_DC

how am I going to fix this error ?

my pull up resistor value 4.7k. this cause a problem? Also i do not think so.
Because i read/write sd card sectors.

Why not use a CCS library?.
Are you use CCS library?

i use it but not working. so mmcsd.c is work but fat.c not working.

Thanks Ttelmah.

I'm now in the FatFs library. Because PetitFat has failed most people.
When I include the Fat library, I get this error.

This error line:

FRESULT f_forward (FIL* fp, UINT ...

I read Datasheet, I know. first <400kHz. I'm doing the speed 2 MHz after the SD card is initialize.

Thanks Ttelmah, for you helping.

Also my max spi speed 2 MHz. This effected on FAT or not ?
if I over 2MHz speed, sd card not respond.

I communicate with the SD card, but unfortunately it does ...

Thanks for reply Ttelmah and temtronic..

I did not try pic24 because there was not much time.
does Petit Fat not work?

the problem still continues... :(