It has been a long long time since I have played with FatFs but I think I am going to start again playing with it in not to long a time.
I am making a simple datalogger and as filename I want to use just the actual date and perhaps time, but from the past I know it can take a long time for a GPS receiver to spit out a valid date and time although it then already give the 1 second interval. I want to start recording as soon as possible, so the moment the 1 sec pulses start appearing I want to read the other sensors and start storing the data. then first make the filename "temp" or something like that, then when I get valid date and time information I want to change the filename to the start of logging (more or less)
I do know that what I could do is just open a second file and copy paste that data, but I was wondering if there is no command to just simply re-name the file.