how to create file name on sd card with date info on it

[pasicr]

Hi there,
can you help me how to create file name on sd card with date info on it?
for example:
DDMMYY.TXT
I use DS1307 on PIC18,
regards

 

[jayanth.devarayanadurga]

If you use mikroC PRO then you have function to create a new file. It uses a string variable for file name. If you set the string to DDMMYY\0 and use the string as filename for the file to be created then you will have what you want.

 

[pasicr]

Thanks Jayanth,
yes, I use mikroC Pro,
the part of code:

char filename[14] = "BROJAC0x.TXT";          // File names

// Creates new file and writes some data to it
void M_Create_New_File() {
  filename[7] = '1';
  Mmc_Fat_Set_File_Date(2013, 9, 21, 9, 0, 0); // Set file date & time info
  Mmc_Fat_Assign(&filename, 0xA0);          // Find existing file or create a new one
  Mmc_Fat_Rewrite();                        // To clear file and start with new data
....
}

On this way I create file name BROJAC01.TXT,
but I need date info on file name...

 

[jayanth.devarayanadurga]

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Code C - [expand]
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filename[0] = day/10 + 48;
filename[1] = day%10 + 48;
filename[2] = month/10 + 48;
filename[3] = month%10 + 48;
filename[4] = year/10 + 48;
filename[5] = year%10 + 48;
filename[6] = '\0';

---

day, month, year are variables used in your RTC code.

 

[pasicr]

Great, it's work,
thanks again,
best regards

 

[pasicr]

Jayanth, can you please explain in short about mean of
'\0'
'\t'
'\n'
'\r'
for strings commands using with SD card,
best regards

 

[jayanth.devarayanadurga]

https://en.wikipedia.org/wiki/Escape_sequences_in_C