Hot!16F628A pulling RA3 low causes RA4 to dip low for a few seconds?

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kevinbinder
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Re: 16F628A pulling RA3 low causes RA4 to dip low for a few seconds? 2018/04/16 09:46:39 (permalink)
+1 (1)
Again, much to think about, and get the brain ticking.
 
Many many thanks to your all.
 
Special thanks to PStechPaul for your reply, time and effort. And for the links. Very interesting reading.
 
I've learned a lot in the last few days.
 
Cheers
Kevin
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PStechPaul
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Re: 16F628A pulling RA3 low causes RA4 to dip low for a few seconds? 2018/04/16 12:35:01 (permalink)
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Analyzing and improving upon circuits such as this is a generally useful effort that I or someone else may benefit from. I have also learned quite a bit, mostly fine tuning principles that I basically knew, but had not actually built or simulated. So I welcome the challenges presented by people on this forum, and I appreciate it when people give good feedback and verification of the suggestions. There are certainly many ways to address problems, and it is best when it is a community effort.
 
I only wish detailed discussions such as this would better titled and more easily found. The bulk of this discussion has become the topic of "H Bridge Drivers" and "Complementary PMOS and NMOS circuits". I don't see any option to add tags on follow-up posts.

 
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jack@kksound
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Re: 16F628A pulling RA3 low causes RA4 to dip low for a few seconds? 2018/04/16 13:37:51 (permalink)
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PStechPaul
...I only wish detailed discussions such as this would better titled and more easily found. The bulk of this discussion has become the topic of "H Bridge Drivers" and "Complementary PMOS and NMOS circuits". I don't see any option to add tags on follow-up posts.


Maybe the OP will change/add to the original post title? Make it more reflective of the the thread content.
 
EDIT: Has the original issue (listed in the title post#1) been resolved? Maybe I missed the solution in the thread....
post edited by jack@kksound - 2018/04/16 13:43:48
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PStechPaul
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Re: 16F628A pulling RA3 low causes RA4 to dip low for a few seconds? 2018/04/16 21:41:07 (permalink)
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In post#5 the OP reported that the original problem went away after removing some of the external components and simplifying the code. So it was probably a problem with noise and layout of interconnections and components.

 
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jack@kksound
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Re: 16F628A pulling RA3 low causes RA4 to dip low for a few seconds? 2018/04/17 09:47:47 (permalink)
+1 (1)
PStechPaul
In post#5 the OP reported that the original problem went away after removing some of the external components and simplifying the code. So it was probably a problem with noise and layout of interconnections and components.


Thanks, I had missed that in the posts. By the way, some great answers/work on your part, thanks.
#25
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