Emulation of VDD2 IO

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Carotti
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Joined: 2020-12-07 09:58
Emulation of VDD2 IO

Good morning,

I am using the Advanced Evalutation Platform,  SLG46535V (mounted in TQFN-14 #3 socket), software 6.24 (build3).  I am enjoying the whole experience very much, but have run into a problem that I need to understand:

I can see from a previous post that LED function is not possible on VDD2 IO.  Is this the case for _any_ VDD2 IO functionality using the above setup?  The circuit simulates as expected,  but does not emulate;  VDD2 does not appear on the expected board/expansion pins and there is no activity on VDD2 IO pins whatsoever.  Both VDD and VDD2 are 3V3 for this experiment.

Does anyone have any suggestions?

Thanks,
Dino.

Device: 
Device Number: 
SLG46535V
olehs
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Last seen: 9 months 1 week ago
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Joined: 2018-02-07 11:40
Hi Carotti, 

Hi Carotti, 

Thank you very much for the feedback about our product!

When you are using chips with two VDDs, the LEDs on board, which are dedicated to VDD2 will not light up. This is the board limitation and nothing can be done with that. 

Could you try to use the probe connectors on the board and see if there is a 3.3V level on the PIN11(TP13). If yes, then the same voltage level should be when PIN12(TP14), PIN13(TP15), PIN14(TP16) are HIGH. 

Best regards, 

Oleh Sapiha

Carotti
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Last seen: 1 month 1 day ago
Joined: 2020-12-07 09:58
Thank you Oleh for your

Thank you Oleh for your prompt repy!

That is a fail for that test, hence my question.  Using the attached circuit,  3V3 is absent from all of the following: PIN11 (on socket board),  Pin13 of SV1, P13 on the development board and the External Connector pin13 (EC enabled).

Unless you can see something else I am doing wrong,  I suspect that my Advanced Development Platform board is faulty. 

Best regards,

Dino.

Attachment: 
olehs
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Last seen: 9 months 1 week ago
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Joined: 2018-02-07 11:40
Hi Carotti, 

Hi Carotti, 

Thank you for sharing the design. Now I see what you mean. Could you please change Sync Power Rails to Disabled in Signal Wizard and then the VDD2 will start working as expected. It can be changed in Debug mode when the Emulation is not switched on. Please let me know if it helps.

Best regards,

Oleh Sapiha

 

Carotti
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Last seen: 1 month 1 day ago
Joined: 2020-12-07 09:58
Hi Oleh,

Hi Oleh,

That is the problem, I changed that setting and the test example now works and I can transport the solution to the real design.

Thank you so much for your prompt help and expertise!

Best regards,

Dave.