Ainser64 configuration

[macsaif]

Hello, I want to use Ainser64 module with 2 configurations. 48 pots should be configured as 7 bit and 8 pots should be configured as 11bit. Is it possible to configure it or I have to use another AINSER8 board for the 8 pots with 11bit configuration? 

[FantomXR]

You can not set the resolution on a "per input" base. So yes, you'd need a dedicated AINSER module.

Please note: MIOS32 only supports two AINSER modules. Although TK shows how to implement a third module in another thread, I was not able to get it running.

[macsaif]

This is not a big problem, because I can add one Ainser8 module in higher resolution. The problem is that I need an additional 16 AOUTs. Other solution will be that I set all the inputs for higher resolution, but in that case I will have problem with jittering of all AINs. In 8 bit resolution rhe jittering is not an issue but in 10bit mode it will ne. 

Edited October 24, 2019 by macsaif

[Zam]

Hello

 You don't need a second one ! assuming you talk about midi resolution ?

Set your AINSER module at 11bit in NG, and set event type= according to your requested resolution (7 or 14bit)

NG should scale

1 hour ago, macsaif said:

but in that case I will have problem with jittering of all AINs

With proper design and dedicated ref regulator you should go up to 11bit

Best

Zam

 

[macsaif]

The control panel is 90cm wide. Some pots will be 70cm from the 4051. Most probably I will do the connection with moltiwire flat cable directly from potentiometers to the AINSER board. Do you think can I manage this distance and solution without jittering in 11bit mode? 

Is there a possibility to manage 1 Ainser64 board and 16 Aouts by one STM32 board (MBNG)? 

[Zam]

Hello

 

Can't say... you have to try in your design

Here I run aprox 35cm wire and trace from 10 to 25cm, with 3 connector in the path, from pot to AINSER input pin

Vref have dedicated regulation.

No jitter at 11bit

Side note, I use AINSER8, no multiplexing, can't say what is the noise introduced by switching nor if there is some.

 

IIRC you can chain AOUT up to 4 TLV (32 out) with a single RC line,

so yes, 64in/16out is possible at J19

 

Best

Zam

 

[macsaif]

I think that I will make 2 AIN modules, one AINSER64 to connect the less important pots with 8 bit reolution and one AINSER8 to connect the high resolution pots (VCF freq, VCO detuning, LFO freq). The AINSER64 is tested with longer cables(80cm) in 8 bit, and no jittering. 

The J19 has 2 chip select bits. How can I connect the additional 16 DOUTs? I will need them, so I have to findnit out. Is there any manual there?