MicroPython Forum (Archive)

The new firmware does not permit the SD reading.
From telnet REPL typing :
>>>os.listdir('/sd')
we have .......
OSError: 19
Consequently I have reinstalled the previous firmware v1.8.6 and all is OK because typing
the previous command I have a list of SD content.

The problem is on mcuimg.bin file ( I suppose)

Regards

The was a change regarding the used FAT library and filesystem mount points. The maintainers should be aware of this but you can also file an issue on github.

Only to thank you and Dr.Damien George for the solution of the SD issue - with firmware MicroPython v1.8.7-213- gaac2db9 on 2017-02-11;WiPy with CC3200

Regards
Federico MONALDI