Logic Level shifter for 12864 display on Duet 2 Wifi

seraser · 15 Oct 2020, 09:27

@dc42 yes, checked fine all connections and try with three sdcards working fine.

I will test in other duet.

Thank you.

Schmart · 15 Oct 2020, 16:36

@seraser I've no personal experience with what is necessary to get an external SD card reader working in RRF, since I print via the network, but since there is no card detect pin, have you tried an M21 P1 "Initialize SD card" or a M39 P1 S2 command yet?

dc42 · 15 Oct 2020, 16:41

@Schmart said in Logic Level shifter for 12864 display on Duet 2 Wifi:

@seraser I've no personal experience with what is necessary to get an external SD card reader working in RRF, since I print via the network, but since there is no card detect pin, have you tried an M21 P1 "Initialize SD card" or a M39 P1 S2 command yet?

To clarify: the M21 P1 command is needed to initialise the external SD card after it has been inserted; however, DWC will issue this command automatically if you try to list jobs on the external SD card.

seraser · 15 Oct 2020, 17:23

@dc42 @Schmart finally some progress.

I can see in web interface sdcard1 not mounted in jobs.

I can choose and mount.

When is mounted I can choose files in 12864 from sdcard0 not sdcard1.

With web interface I can choose files in sdcard0 and sdcard1.

I do not know if this is right or system need detect automatic at boot but 12864 cant read sdcard1.

Thanks for support.

seraser · 16 Oct 2020, 07:52

And for finish to me, from wiki I can play with M20 and M21 for mount and choose files in sdcard1 by editing files in menu folder so all is perfect thank you @Schmart for your work.

Schmart · 16 Oct 2020, 08:54

@seraser I'm glad to hear it's now working for you! And this thread will be a good reference for people who also want to use the SD card reader on their Fysetc display.

seraser · 16 Oct 2020, 16:13

@Schmart and now fishing time.

Automount ready with M21 P1 in config.g and can choose for print sdcard0 or sdcard1 from 12864 editing main and create another listFiles, only 15 minutes of work.