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Title: Power rails on Proteus Post by: towlerg on February 19, 2018, 08:52:56 20:52 Not sure if this is the right place to ask but...
I want to make a PCB for a PIC18F project. Part of the curcuit is a jumper which selects Vdd (either 3.3 or 5). How do I prevent Proteus from hiding the Vdd connections to the curcuit? I tried modifying Hidden pins in the PIC's properties and Configure Power Rails but it's all to clever for me. BTW Proteus 8.7 sp2 on Win7 Ult x64 Title: Re: Power rails on Proteus Post by: sadman on February 20, 2018, 07:31:40 07:31 check out these official tutorial from labcenter
https://www.youtube.com/watch?v=YtinI76Yr9s https://www.youtube.com/watch?v=-YF49rRB_Go following tut are from users https://www.youtube.com/watch?v=uwjk1jgRMtY https://www.youtube.com/watch?v=xszc6hBLROw hope help you sadman Title: Re: Power rails on Proteus Post by: towlerg on February 20, 2018, 08:02:33 20:02 Thanks for that, unfortunatley they all deal with the Power Plane Generator, I'm just trying to turn off the automatic creation of the vdd net (I think).
Title: Re: Power rails on Proteus Post by: HackAndCrack on February 21, 2018, 06:49:19 18:49 Double MCU model and in that click Hidden Pins button. It will show to which nets it will connect the power pins to. Keep VSS for GND and change VDD to net named PWRSEL. Use Jumper on schematic to select 3.3V or 5V for PWRSEL.
Title: Re: Power rails on Proteus Post by: towlerg on February 21, 2018, 10:00:44 22:00 Thanks, I dont understand what you mean by "double MCU model" but I think I got it working although I'm sure a lo of what I did was irrelevant.
I created two power terinals and in power rail config I created two net classes and then allocated them on the power rails tab, now if I create a PCB layout I get no errors and everything seems to be properly connected. Also as HackandCrack posted change hidden pins in any affected models. I also buggered about changing things to experiment so maybe there is something I've forgotten. I'll go thro the process from scratch and document a "How to" for anyone who finds this thread helpfull. Title: Re: Power rails on Proteus Post by: HackAndCrack on February 22, 2018, 06:07:41 06:07 Thanks, I dont understand what you mean by "double MCU model" but I think I got it working although I'm sure a lo of what I did was irrelevant. I created two power terinals and in power rail config I created two net classes and then allocated them on the power rails tab, now if I create a PCB layout I get no errors and everything seems to be properly connected. Also as HackandCrack posted change hidden pins in any affected models. I also buggered about changing things to experiment so maybe there is something I've forgotten. I'll go thro the process from scratch and document a "How to" for anyone who finds this thread helpfull. Sorry, I mean double click MCU model. |