Datasheet 18F – Ebook download as PDF File .pdf), Text File .txt) or read book online. PDA. View Full Version: 18F Quaduature Encoder This change will be notified in a datasheet’s () future update. PIC18FI/P Microchip Technology 8-bit Microcontrollers – MCU 16KB RAM 34 I/O datasheet, inventory, & pricing.
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PWM Glitch on the 18F2331, 18F2431, 18F4331, and 18F4431 for very low duty cycles
Basically the module is counter and two comparators. Not yet at least. I wish I could help but I am using the 18F in a completely different manner. LowByte hserout [“D”,dec duty,”F”,dec Freq] goto Main ‘ Loop end Like I said, I’m going to have to study my own work just to understand it better, but at least it works like it is suppose to.
CCS :: View topic – Can’t setup_spi2(mode) for Pic18f ?
Could you guide me how to do this. Not the PWM datashert. That was a few weeks of hair pulling!. Using Darrel’s interupt routines I managed to get motor controller for my robot working, with PID filter and all.
Yeah this one is a nifty series PIC for sure. Thanks a lot Bruce.
Well,it drive me crazy to know about it. The switch controls if the output is pulsed DC or cycles both ways. I don’t fully understand how to plan for it, but I did figure out a relationship in my application and kind of applied a brute force solution.
What I ended up with was this: First is the same thing that should be first for every new pic, can you blink a led? But anyhow,it’s clear enough for me to understand. Bruce, 18v4431 a super start to a beginner like me. I’m using the 18F too.
18F Quaduature Encoder [Archive] – MEL PICBASIC Forum
I was wondering if someone has done same thing in pic basic i. I never managed to get QEI module going in 188f4431 mode. This should be more than enough for me to get started. When the counter starts at 0 the output is set, when it “hits” the value of the first comparator the outputs is cleared and when the counter “hits” the value of the second compartor the PWM cycle starts over.
It has a CD that conatins source code in assembly.
Any help with the set up code would be appreciated. For PWM resolution use the equation below. MOVFF is move file to file.
That said, there still seems to be a bit of mystery surrounding it’s use, at least to me. While Bert’s statement might sound like just so much talk to some Datashedt vouch for his opinion especially if you are moving to 18F chips datashet the first few times, I had an amazingly difficult time just getting this chip to blink the LED, owing to programmer issues, config issues.
But,i gotta some problem with 18f431 PWM Period value. I can see that there is a dependency with the PWM resolution, but I’m not sure how to manage it. Beat your head long enough against the wall, and sometimes you find a door.: I haven’t played much with this particular feature. The Quadrature-Encoder isn’t very strange I mean how to find the values for.
How to find this using equation i use this equ since it’s free running mode here. This is part of it and not complete yet. Isn’t that an awesome controller? I datwsheet this seems so simple, but it really does ensure you have a few needed things correct before making things more complicated. I tried, and submitted a support ticket to Microchip.