New v4.1 build, right side encoders not working

Building Zynthian
1

The select encoder works as a button, but rotating doesn’t work. If I pick a synth, it shows the left 2 registering data, but the right two don’t change the values when rotated.

Linux zynthian 4.19.118-v7l+ #1311 SMP Mon Apr 27 14:26:42 BST 2020 armv7l

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
root@zynthian:~# gpio i2cd
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: – -- – -- – -- – -- – -- – -- –
10: – -- – -- – -- – -- – -- – -- – -- – --
20: 20 – -- – -- – -- – -- – -- – -- – -- –
30: – -- – -- – -- – -- – -- – -- – -- – --
40: – -- – -- – -- – -- – -- UU – -- UU – --
50: – -- – -- – -- – -- – -- – -- – -- – --
60: – -- – -- – -- – -- – -- – -- – -- – --
70: – -- – -- – -- – --
root@zynthian:~#

2

If your encoder switches work then you can be sure the I2C bus works which is confirmed by your command line. The likely hood is then that you have a wiring issue. Do you get different behaviour if you swap other encoders and see the effect follow a particular encoder or does it stay on a specific 23017 connector pins? Can you check continuity with a multi meter?

3

swapping the encoders and wires the problem stays in the same place. left side works right side doesn’t.

image
image3024×4032 2.5 MB

4

Ok, swaping your encoders tells that they are working, so maybe there’s something wrong on the Zynsreen.
Just to be sure, I suppose you didn’t change anything in the hardware configuration ?

5

Yes do check that the configs in webconf are set correctly.

6

Hi @grawk !

It seems you have a faulty ZynScreen. The MCP23017 (the IC in the center) looks strange. Could you send a closer and well-defined photo from the IC?

Also, you could check that the JST connectors pins are OK. Some times the pins get bended when inserting the male.

Anyway, don’t worry, i will send you a new one :wink:

Cheers!

1 Like
7

no need. the pins were bent so we straightened them out. it’s working now. thanks.

2 Likes
8

Excellent! Could we then move swiftly on to a :face_with_monocle:?

9

This could be caused by trying to insert the male connector reversed and pushing too strong. JST connectors normally plug smoothly when correctly oriented :wink:

Great to have another working zynthian over the world. BTW, you shouldn’t forget the :face_with_monocle:. Wyleu’s ravens are hungry …

Cheers!

10

i don’t know what that means

11

It means please upload a sound sample as a way to say “thank you for helping”. A complete explanation of what it means can be found here:
https://wiki.zynthian.org/index.php/Talk:Zynthian_Wiki_Home

1 Like