oscilloscope and pic

Hello friends,
I made a oscilloscope for pic from
**broken link removed**
I used a PIC18f4550 instead of a PI18F2550
I try to load this flile .hex
**broken link removed**
generated by this CCS code
**broken link removed**

I don't understand......
Show only the positive part of a sine wave and it is positioned at the bottom.
The frequency and the line of zero-crossing dont'works.

Can you send me a other .hex generated by you with the annexed code.

bye
Antonio

I think this scope (as the schematics show ) has a 0-5v input.... What wave form are you sampling? you may need to level shift using an op-amp.

Probably is so but in any case also with the offset to 2.5 V (set my generator) the dots is not positioned in
half of the screen and the frequency and the trigger don't works.

Thanks
Antonio

aduri If you would go to semifluid.com he is a real cool person from what I hear he will email you back if you ask him nicely how to fix your problem His code was done a full version of CCS I think and your not to post library files so he was kind enough to post Hex for these .

‘List of codes to send first:’ in the ‘Options’ menu. Please feel free to contact me if you have any problems.

Click to expand...

**broken link removed**

OK
I will try this way.

Tanks

ciao
Antonio