7i96 Configuration Tool Questions

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16 Jan 2021 14:51 #195534 by Markyd
I've just added the read of the firmware to the above post, in case that helps.

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16 Jan 2021 15:38 #195538 by BigJohnT
I just uploaded a new deb, get pins still freezes but nothing else does. I'll try to fix that in the morning... going to be a busy day here building 9 panels.

JT

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16 Jan 2021 16:01 #195543 by PCW
The 7i96_7i85s firmware does not actually have a PWMgen
(its got an error in that it reports having one)

Here is a 7I96 +7I85S bitfile with a PWMgen replacing
Stepgen 4 on the 7I96

File Attachment:

File Name: 7i961pwm_7i85s.zip
File Size:127 KB
Attachments:

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16 Jan 2021 16:19 #195545 by BigJohnT
If you flash the 7i96 with 7i96_7i85.bit and reload when you run a config should any 7i85 pins show up in show hal configuration?

JT

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16 Jan 2021 16:26 #195546 by PCW
No, because the 7I85S is a passive device (just signal conditioning)
but you will have 4 encoders (a total of 5 including the one on the 7I96)
and 2 or 3 additional stepgens plus 1 more sserial port
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16 Jan 2021 16:57 - 16 Jan 2021 17:45 #195550 by BigJohnT
I flashed with both the 7i85 and 7i85s then ran my config but only see one encoder.

Edit: maybe I have my configure line wrong... just thought of that.

JT
Last edit: 16 Jan 2021 17:45 by BigJohnT.

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16 Jan 2021 17:57 #195555 by BigJohnT
Ok, if I leave num_encoders off the config line I get all possible encoders and I assume that works for stepgen etc.

JT

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16 Jan 2021 18:14 #195556 by Markyd
I've flashed that bit file and I now have PWM. Thanks Pete. The VFD's speed is jumping all over the place but I suspect that is just noise as I've only used a twisted pair and not screened cable. I'll change the cable and hopefully that will resolve that.

Unfortunately I've still not got anything registering on the encoder input on the 7i96. The config tool still only gives the option for a single encoder, it won't let me increase above 1, but given I can't get the first one functioning I'm not particularly worried about that just yet.

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16 Jan 2021 18:58 #195559 by BigJohnT
I'll have encoder issue fixed in the morning... now that I understand more about what I didn't understand before.

JT
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16 Jan 2021 19:27 #195562 by PCW
Note that the encoders are numbered:

7I85S Encoders 0..3
7I96 encoder 4
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