PIC16F62X - Comparator Module

Does anybody tried comparator module on PIC16F62X series? Did it work?

As far as I know it is working in general.
But I don't know if it works in all possible configurations.

You can try with the last revision for 1.0.0, there are some issues fixed.
Download it here: https://simulide.forumotion.com/t390-simulide-1-0-0-tester-builds

If this doesn't solve the issue, you can share your circuit and firmware to see what is happening.
Or at least share the configuration you are using.

I configured CMCON as one independent comparator (xx00x101). RA1 as reference voltage on Vin-; RA2 as variable input on Vin+. RB7 is configured as output to control a DC motor.

I apologize for any eventual mistakes on circuit or coding. The files (circuit and firmware) can be acessed on link below:

https://drive.google.com/drive/folders/1QVh8iav37_1CEitxpgPRQDspTm-sv5jf?usp=sharing

RagmaAraujo wrote:I configured CMCON as one independent comparator (xx00x101). RA1 as reference voltage on Vin-; RA2 as variable input on Vin+. RB7 is configured as output to control a DC motor.

I apologize for any eventual mistakes on circuit or coding. The files (circuit and firmware) can be acessed on link below:

https://drive.google.com/drive/folders/1QVh8iav37_1CEitxpgPRQDspTm-sv5jf?usp=sharing

I almost forgot to post a quick explanation of comparator issues: When analogic signal on RA2 get higher than RA1, the output of CM2 (C2OUT) doesn't change. Also, bit flag CMIF doesn't set.

Thanks, I could reproduce the issue.

There is an error in file: data/PIC/p16F627/p16F627_perif.xml
Solved at Rev 1379.

You can fix it yourself easily in Simulide by clicking in "File explorer" tab (left panel), then open "Data" and find the file, double click and it will open in Editor.




Then in the Editor, at the end of the file replace the sections for comparators with this:

Code:


  <comp name="COMP1" type="01" configregsA="CMCON"
                     interrupt="ACOMP"
                     pins="PORTA0,PORTA3,PORTA2"/>

  <comp name="COMP2" type="02" configregsA="CMCON"
                     interrupt="ACOMP"
                     pins="PORTA2,PORTA1,PORTA4"/>


Save the file and restart Simulide.

arcachofo wrote:Thanks, I could reproduce the issue.

There is an error in file: data/PIC/p16F627/p16F627_perif.xml
Solved at Rev 1379.

You can fix it yourself easily in Simulide by clicking in "File explorer" tab (left panel), then open "Data" and find the file, double click and it will open in Editor.

Thanks for help! The changes on xml worked perfectly on device. It is working in conformity of datasheet.