Mmc_Fat_Dir

[Richie]

Is it possible to write directory contents (as text) to another file on the SD card using this command ?



Thanks

[janko.kaljevic]

Hello,

It is possible and it is very simple to do.
Please try something like this:

Code: Select all

dim buffer as string[256]
dim fhandle as char

sub procedure fillbuffer(dim ch as byte)
  buffer[i] = ch
  inc(i)
end sub
....
    Mmc_Fat_Dir(@fillbuffer)
    buffer[i] = 0
    
    fhandle = Mmc_Fat_Open("newfile.txt", FILE_APPEND, 0xA0)
    Mmc_Fat_Write(buffer, length(buffer))

Best regards.

[Richie]

Thankyou !


BTW it's not possible to change directory and read a file from it ?

[janko.kaljevic]

Hello,

Yes it is possible, and very simple.
Please try this:

Code: Select all

    Mmc_Fat_ChangeDir("DIR_A")
    Mmc_Fat_Open("file.txt", FILE_READ, 0)
    size = Mmc_Fat_Get_File_Size()
    for i = 0 to size
      Mmc_Fat_Read(buffer[i])
    next i

This will open file.txt for reading and store it's content in buffer.
I assumed that DIR_A is directory in root on SD card and file.txt is a file inside DIR_A.

Best regards.