Post Created date
Optimal width for long signal traces?
Overshoot in and of itself may not be an issue, as long as it doesn't interfere with the digital trip point.     Overshoot can forward bias the input...
Saturday, 9 May 2020 - 20:40
Optimal width for long signal traces?
Yes, I'm aware of having to keep the ground loop short to get an accurate picture.   Also, differential probes help--the scope ground lead can introduce...
Saturday, 9 May 2020 - 20:31
Optimal width for long signal traces?
Just following up, now that I have the pcbs up and running.  Maybe a future reader will have a similar question...   I ended up making the trace 10 mils wide over a...
Saturday, 9 May 2020 - 17:47
Configuring Pin Change Interrupt from Start
I don't really want to morph this into a thread about why saving time is a good thing.        Register name spellings, bit position and mask spellings, code...
Saturday, 9 May 2020 - 16:03
ATtiny1614 -- Interrupts on LUT output changes--is it really there?
I was able to get the interrupts I needed by routing the outputs of Timer D on an event channel, then using them as inputs to the same D timer to capture.   Accomplishes what...
Thursday, 30 April 2020 - 22:45
ATtiny1614 -- Interrupts on LUT output changes--is it really there?
Well, I did when I designed the pcb :-)
Thursday, 30 April 2020 - 17:08
ATtiny1614 -- Interrupts on LUT output changes--is it really there?
Newer spec  (DS40001995B) doesn't reference those registers and says:     Would have been nice--        
Thursday, 30 April 2020 - 14:23
ATtiny1614 -- Interrupts on LUT output changes--is it really there?
Also, two  CCL registers are at the same 0x5 offset??         Not looking good--maybe I have an old spec, I'll try finding the latest.    
Thursday, 30 April 2020 - 14:17
Attiny 1614 Timer D ISR not firing but waveforms look good
Yes, that was the problem.   The ISR is fired on the input events, not just on an edge of the  WOA or WOB waveform.   I routed the Timer D output events using EVSYS...
Wednesday, 29 April 2020 - 21:39
Attiny 1614 Timer D ISR not firing but waveforms look good
Other references talk about the interrupt occurring when a "capture" happens.  So, I'm thinking the interrupts provided aren't what I was looking for.   Maybe I can get...
Wednesday, 29 April 2020 - 21:19
Attiny 1614 Timer D ISR not firing but waveforms look good
Worth a try, but clearing both doesn't help (the ISR NEVER gets entered,  so adding any code there can't help).   I did add this to main.c:   TCD0.INTFLAGS =...
Wednesday, 29 April 2020 - 20:49
Problem compiling project from Atmel Start--works ok on another machine
Re-installed Studio 7 on the laptop, and now it compiles ok.   No clue what the issue was...  
Wednesday, 29 April 2020 - 19:11

Pages