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#1 2017-01-04 02:21:44
- benng
- Member
- Registered: 2016-12-05
- Posts: 5
Unip v1.1 board Analog output
Hello all
Happy New year!!
I am working on 2 unipi v1.1 boards, I can not get the analog output working with Rex UnpDrv, the AO output stay at 10Vdc as soon as upload the UnpDrv with a simple function block, all other input and relay output are working, but can not control the AO, I test the boards with Python PWM function, both boards are working fine.
Has anyone have the same problem or can anyone help please?
Last edited by benng (2017-01-04 02:30:17)
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#2 2017-01-04 20:08:57
- jaroslav_sobota
- Administrator
- Registered: 2015-10-27
- Posts: 535
Re: Unip v1.1 board Analog output
Hi Ben,
thanks for reporting this. I can confirm the problem. With full Raspbian, the output is always at 10V. With Raspbian Lite, everything is working fine. I suspect there is some collision with audio in the full Raspbian. I will continue digging...
Jaroslav
Monarco HAT for Raspberry Pi - Lightweight I/O for monitoring, archiving and control.
Raspberry Pi in industrial automation!
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#3 2017-01-04 20:17:08
- jaroslav_sobota
- Administrator
- Registered: 2015-10-27
- Posts: 535
Re: Unip v1.1 board Analog output
Yes indeed, toggling sound to the HDMI port helped. Please use raspi-config – it’s under Advanced Options -> Audio. Then reboot. Afterwards the AO should be working fine.
Let me know.
Jaroslav
Monarco HAT for Raspberry Pi - Lightweight I/O for monitoring, archiving and control.
Raspberry Pi in industrial automation!
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#4 2017-01-05 08:05:29
- benng
- Member
- Registered: 2016-12-05
- Posts: 5
Re: Unip v1.1 board Analog output
Thank you Jaroslav, all working now.
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