DAC8811EVM-PDK: The /CS pin of J2 not output.

Thank you for your reply.
I'd checked on J2 directly.
I think W2 of the jumper has not anything to do with it.
Is it a bug in MMB0?

Sincerely.
Kengo.

Hi Kengo,

i am not much aware about MMB0 board. Will check with our internal team and get back to you. 

Hi Anbu,

How about this?
I'll wait for your reply.

Thank you.

Hi Kengo,

Give me one more day,  i will get back to you.

Hi Kengo,

The DXP software defaults to Frame Sync. The Frame Sync output of the MMB0 connects to the SYNC input of the DAC88811. The DAC output changes to the corresponding level when the DAC latch is updated via SDI. Ensure the shunt jumper on W2 is covering pins 2-3 (default is 1-2) to use this feature.

So by default the /CS from the connector J2 pin 1 will be low. If you probe the /CS pin at the DAC8801 side, you can see the waveform correctly.

Hope this clarifies the query. There is no bug in MMB0. You can change the frame sync option in the GUI if you wish to do so by providing external /CS signal as well.

Regards,

AK

Hi AK,

Thank you for your reply.
Does it mean that a /CS signal comes in from FSX?

It looks like you use W2 1-2 in the user guide for DAC8811EVM.


Is this a mistake?

Sincerely.
Kengo.