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Hey guys,

Was just reading online that some people tie each unused pin to ground using a resistor (about 1k)? I tied mine directly to ground. Is this the correct method?
...

Hi guys, I rechecked the circuit last night. I made the following changes to the bread board,

1) Connected unused pins to each other then to ground.
2) Set unused pins to LOW state.
3) Set TRIS...

Hmmm...have tried the suggestions and still same problem. The interference is definitely induced by the strobe pulse. When the strobe is not triggered the signal is fine. Very strange.

Hi Jerson, yep have tried ground planes on a PCB. Slight improvement but same issue. Good point regarding sampling rate. Its 50us as defined in the code. The source has inbuilt filtering. I don't use...

Thanks guys. I will try your suggestions. I will double check the TRIS registers to ensure they have the correct setting. By the way C11 is connected directly to Pin 14 and the input signal is from a...

Hi Al,

Went back and grounded the unused pins. Still get the pulse on the analog signal. Anything else I missed?

cheers

Mark.

Sure Al, please see attached image. Thanks Mark.
6305

Hi guys,

new to this so looking for advice. I have a PIC16F88 that has been configured to receive analog inputs on pin 12 using ADCIN command and then strobe a LED as an output on pin 8 using...

Hi, I have purchased the upgrade for PBP3. I'm having huge problems trying to register the software via the online form. I get run time errors. Has anyone else had this issue?

I'm currently...

Bob that would be great look forward to seeing how this can be done.

cheers

mark

Hi guys,

How can I measure the phase angle difference between a sine wave and a triggered pulse?

I thought about doing it like this

Loop:
t_sine = time between sine wave peaks.
...

Thanks Steve, but how does the ADC know which port to read in? For example, we could read in PortA.1 or PortB.1

cheers

Mark.

Hi guys, I'm new to this. I'm trying to get my PIC 16F88 to read in analogue on RB6 & RB7 and strobe a LED on RB2. I can get the LED to light up but it appears that the ADC is not reading in any...

Hi guys,

Thanks that helped. I decided to use the ACDIN to read the pot value and then scale as you recommended.

By the way, does using the ACDIN command slow things down much? I'm using it to...

yep tried it and still not working. Any hints?

Hi Guys,

I'm a newbie. I am having trouble using the "POT" command with my 12F675. It simply doesn't work on any port (neither does RCTIME). I have had success using ADCIN using a voltage divider...