Been there, done that! :)
Type: Posts; User: J. Mark Wolf; Keyword(s):
Been there, done that! :)
I don't know if you're aware of the uMMC from Rogue Robotics (see link below). They're kinda pricey but they might save your hair.
https://roguerobotics.com/products/ummc
Also, check out the...
I started a project some time ago with the following features.
1. Battery voltage monitoring
2. 4 EGT thermocouple channels
3. 4 CHT thermocouple channels
4. Electric water pump current...
I used a DAC (digital to analog converter) formed with an R2R ladder on a PIC port, to generate a near perfect sine wave.
Generate the values you need with a spreadsheet using the Excel SIN...
Which fuse made the difference to your problem?
I experienced something similar to what you describe awhile back.
In my case, the OSCin and OSCout pins were not configured properly in the Config fuses, so the ceramic resonator was failing to...
I didn't fully evaluate how your'e doing it, but it sounds suspiciously similar to a circuit I designed several years back, and has worked well ever since.
It should do what you need.
The...
16F1827 code below will allow only 2 of the available 4 PWM channels to run simultaneously. Need 3 Simultaneous PWM channels, all at different frequencies.
Channel 1 & 3 will work provided channel...
Hi Henrik
Thanks for the info.
SCI = TTL level RS232, or asynchronous serial right out of a uart. Can't remember what the acronym stands for, maybe Serial Control Interface???
Hi Henrik
I am considering the purchase of this same LCD and am wondering how "you two" are getting along. It seems like quite a bargain.
I have a lot of T6963 controller experience, and want...
Not entirely sure what your asking but thought I would comment:
The MCLR pin on some PIC devices have a max voltage of 9 volts, 16F1527 for instance, but some device programmers can generate...
The common punches for doing DB-9 openings, and others, are made by Greenlee. Google them and I'm sure you'll be aghast at the prices. I once saw a knockoff DB-9 puch that was similar, and cheaper,...
Check out the Vdrive. More easily transportable than the SD card.
http://www.ftdichip.com/Support/Documents/DataSheets/Modules/DS_VDRIVE2.pdf
Hi Bruce
I was trying to implement something like that earlier as part of trying to fix the table issue. Now that the tables are fixed it'll be nice to loose all the leading zeroes!
This...
Hi Bruce
Yup, that's what ended up working.
Thanks.
Exactly right Mark! I was forgetting to offset the Measurement variable back to zero relative to each table.
The Page Boundary errors went away too!
Thanks for the tips. I've been working on...
Exactly right Mark! I was forgetting to offset the Measurement variable back to zero relative to each table.
The Page Boundary errors went away too!
Thanks for looking!
I tried breaking up my 254-element table into four 64-element tables as mark_s suggested in another thread, but it's giving more trouble and now "Crossing Page Bounday errors".
It behave as though...
Hi Bruce
I thought the same thing driving home from work.
I tried it and it does indeed go "off in the weeds" after reading 85 elements.
So I take it that mere mortals cannot tweak the...
My approach would be to generate the "points" you need for the line equation, given your slope and time parameters, in Excel. Then print a CSV file of the results, then copy the CSV file into your...
Hi Bruce
The compiler was not balking at the table size, and I confirmed with Darrel that the table size limit has been expanded, and that the manual has not yet been updated to reflect this.
Hi Darrel
You're correct, I mispoke, 254 items in the table.
Thanks for looking.
Table below:
'
'*******************************************************************************
I have a table populated with 254 word-size dwell parameters.
My 16F1827 is generating the proper range of vectors (0 - 254) to get into the table, but it's coming back with nonsense.
Screen...
I posed the question to tech support.
According to Darrel, the limit for LOOKUP2 and 16F parts has been bumped to 256 elements.
That's good news for my application!
I saw that also, after creating my LOOKUP2 table, but I'm using the new 16F1827, and the compiler didn't start balking until I got over 255 or 256 words (can't remember which).
I whittled the...