In Write Firmware screen of the Hardware Setup for Raspberry Pi™, you may get ‘permission denied’ error while writing the firmware to SD card. To resolve this error in Linux® or Mac operating systems, make sure to delete the 'img_writer_log.txt' file present in 'temp' directory and retry the Write operation. You can find the ‘temp’ directory of your host machine by executing the command ‘tempdir’ in MATLAB command prompt.
To resolve this issue in Windows® platform, delete 'img_writer_log.txt'
and ‘sderr.txt’ present in the location, $SPKGROOTDIR/3P.instrset/raspbian.instrset
where $SPKGROOTDIR is the path that you get by executing the command
the MATLAB command prompt.