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PIC resources
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Michael Carey
开云体育How many people have experience with PIC's, I am
looking to share code snippets with other people. Also if people have unique or
interesting projects using PIC's I would be interested in knowing of them. I
have my own PIC resource page - it generally deals with the Dick Smith PIC
programmer and testbed, here is the url:
If you have a webpage on a PIC project or resources
I would be interested in throwing in a link to it especially if it is a cool
project or has similar value.
Cheers Michael C
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d nixon
There is a ton of stuff for PICs online. There's also a PIC group on Yahoo.
-Mike From: "Michael Carey" <mpc@...> _________________________________________________________________ Get your FREE download of MSN Explorer at |
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Mounir Shita
开云体育Hi
Michael,
?
I have
some years experience with PIC.Actually 5-6 years to be exact. I've built quite
a few projects. My biggest was my senior project at college 3-4 years ago when I
built a speech recognition system with a PIC16 and a PIC17. Worked okay, only
got 70% recognition rate. Also built tons of small projects. Right now I'm
playing with a robot I'm gonna squeeze a PIC18F to do some simple
navigation.
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Mounir
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I have been involved with PIC programming for several years. ?I have wrote code for several projects at work mostly dealing with motor and actuator controls, as well as, some test equipment. ?
My latest project is for a motor controller for NASA. The heart of the controller is a PIC17C756A. My controller drives a brushless DC motor and controls it's speed. ?My controller also monitors the motors speed, current, and temperature. This data is sent to a PC via a RS-232 interface. Commands for speed, as well as, current and temperature limits, can be sent to the controller from a PC via the RS-232 interface as well. Also these limits are stored on an EEPROM, which requires separate serial communications. The baud rates for the RS-232 communications are variable, based on separate signals sent to the controller. There is also a separate enable/disable for the motor. ?Current and temperature is monitored using the PICs A/D convertor. I have a web page, below is a link to my home page, from there you can get the link to my PIC programming page. |
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In a message dated 10/29/01 1:47:26 PM Eastern Standard Time, mshita@... writes:
I have some years experience with PIC.Actually 5-6 years to be exact. I've built quite a few projects. My biggest was my senior project at college 3-4 years ago when I built a speech recognition system with a PIC16 and a PIC17. Worked okay, only got 70% recognition rate. Also built tons of small projects. Right now I'm playing with a robot I'm gonna squeeze a PIC18F to do some simple navigation. I did not know that Microchip had released any of the PIC18F series yet. ?All I have seen are listed as Future Products. |
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How do you compare the PIC17 family to the PIC18 family? I only used PIC17 once before PIC18 was introduced. But on my current project I was comparing PIC17 and PIC18. I honestly couldn't find any reason why Microchip still made the PIC17 series. PIC18 is way better and about the same price.
Am I missing something ? Do you have good experience with PIC17? When we started this project I had intended to use separate PWM outputs to each of the three phases of the motor, therefore I needed three PWM outputs. The PIC17C756A was the best choice available with 3 PWM outputs. ?Later, changes were made to the motor and controller and I no longer needed separate PWM outputs. ?If I had known this earlier I would have used a PIC18 series chip. ? The PIC17 series was the next logical step for Microchip to take at the time they developed it. I believe it was just a step along the way to the PIC18. Microchip still supports this family, even though the PIC18 is a much better choice if you need more power than the PIC16 which is much cheaper, because of their policy of whenever possible always supporting past lines. They do this to prove to their potential customers that they will not be hung out to dry because of discontinued or obsoleted parts. |
Must agree, 18 is way better than 17. Hopefully soon they'll get all From what I have read about the dsPIC it sounds impressive. However at present time I think I will have little use for it at work. ?But I might play around with it at home some when it come out, just for fun. |
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Mounir Shita
开云体育How do
you compare the PIC17 family to the PIC18 family? I only used PIC17 once before
PIC18 was introduced. But on my current project I was comparing PIC17 and PIC18.
I honestly couldn't find any reason why Microchip still made the PIC17 series.
PIC18 is way better and about the same price.
?
Am I
missing something ? Do you have good experience with PIC17?
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Mounir
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Mounir Shita
Something got screwed up here. The message below was sent by me,
Mounir and not aseesf4@.... Mounir --- In Electronics_101@y..., aseesf4@a... wrote: How do you compare the PIC17 family to the PIC18 family? I onlyused PIC17 once before PIC18 was introduced. But on my current project I wascomparing PIC17 and PIC18. I honestly couldn't find any reason why Microchipstill made the PIC17 series. PIC18 is way better and about the same price.outputs to each of the three phases of the motor, therefore I needed three PWMoutputs. The PIC17C756A was the best choice available with 3 PWM outputs.Later, changes were made to the motor and controller and I no longerneeded separate PWM outputs. If I had known this earlier I would have used a PIC18series chip.the time they developed it. I believe it was just a step along the way tothe PIC18. Microchip still supports this family, even though the PIC18 is amuch better choice if you need more power than the PIC16 which is much cheaper,because of their policy of whenever possible always supporting past lines.They do this to prove to their potential customers that they will not behung out to dry because of discontinued or obsoleted parts. |
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Mounir Shita
I take my last message back. I just read the top of it and it looked
like my post. Thought something went wrong somewhere :) Sorry..................... Mounir --- In Electronics_101@y..., aseesf4@a... wrote: How do you compare the PIC17 family to the PIC18 family? I onlyused PIC17 once before PIC18 was introduced. But on my current project I wascomparing PIC17 and PIC18. I honestly couldn't find any reason why Microchipstill made the PIC17 series. PIC18 is way better and about the same price.outputs to each of the three phases of the motor, therefore I needed three PWMoutputs. The PIC17C756A was the best choice available with 3 PWM outputs.Later, changes were made to the motor and controller and I no longerneeded separate PWM outputs. If I had known this earlier I would have used a PIC18series chip.the time they developed it. I believe it was just a step along the way tothe PIC18. Microchip still supports this family, even though the PIC18 is amuch better choice if you need more power than the PIC16 which is much cheaper,because of their policy of whenever possible always supporting past lines.They do this to prove to their potential customers that they will not behung out to dry because of discontinued or obsoleted parts. |
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Mounir Shita
If I understood Microchip right, then there is no further development
of the 17-family, right? Must agree, 18 is way better than 17. Hopefully soon they'll get all their parts out in flash versions. Have you thought about using the dsPIC, when it comes out, to something ? I'm very excited about that part. Price wise, its very close to the PIC18-family. However, its 16 bit and much faster. Mounir --- In Electronics_101@y..., aseesf4@a... wrote: How do you compare the PIC17 family to the PIC18 family? I onlyused PIC17 once before PIC18 was introduced. But on my current project I wascomparing PIC17 and PIC18. I honestly couldn't find any reason why Microchipstill made the PIC17 series. PIC18 is way better and about the same price.outputs to each of the three phases of the motor, therefore I needed three PWMoutputs. The PIC17C756A was the best choice available with 3 PWM outputs.Later, changes were made to the motor and controller and I no longerneeded separate PWM outputs. If I had known this earlier I would have used a PIC18series chip.the time they developed it. I believe it was just a step along the way tothe PIC18. Microchip still supports this family, even though the PIC18 is amuch better choice if you need more power than the PIC16 which is much cheaper,because of their policy of whenever possible always supporting past lines.They do this to prove to their potential customers that they will not behung out to dry because of discontinued or obsoleted parts. |
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You will probably find answers to your questions about the Microchip
PIC family of micro-controllers on one of the _many_ PIC discussion groups or other micro-controller discussion groups. Though it is an interesting topic here it may be more productive there. I'll bet a lot of people on this list are also on one or more uC lists. --- In Electronics_101@y..., "Mounir Shita" <mshita@c...> wrote: If I understood Microchip right, then there is no furtherdevelopment of the 17-family, right?all their parts out in flash versions. Have you thought about using thethat part. Price wise, its very close to the PIC18-family. However, its16 bit and much faster. |
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Mounir Shita
Hi Ted,
PIC stands for Peripheral (okay, I'm bad in English spelling) Interface Controller. Its a microcontroller manufactured by Microchip. PIC17 and PIC18 is two different microcontroller families. PIC18 was just released last year I think. So it is very new. Difference between them aren't really to much. I personally find PIC18 easier to program. The architecture is much more programming friendly (I think). Hope this helps :) Mounir ~No question is to dumb. Only the answer~ --- In Electronics_101@y..., "Teodoro M. Villamarzo" <tedmv@m...> wrote: Sorry for this newbie question, but I'm really interested:differences between the PIC17 and 18?all thetheir parts out in flash versions. Have you thought about using thatdsPIC, when it comes out, to something ? I'm very excited about its 16part. Price wise, its very close to the PIC18-family. However, However atbit and much faster. I mightpresent time I think I will have little use for it at work. But play around with it at home some when it come out, just for fun. |
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Teodoro M. Villamarzo
Sorry for this newbie question, but I'm really interested:
toggle quoted message
Show quoted text
Can some tell me what a PIC is, and what it does, and what the differences between the PIC17 and 18? Thanks... Ted At 08:48 PM 10/30/01 -0500, you wrote: Must agree, 18 is way better than 17. Hopefully soon they'll get all |
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Mounir Shita
开云体育Hi
Ted,
?
Yeah,
actually I'm currently working on putting a PIC into a toy
robot.
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They
are available commercially. Actually, PIC are one of the most popular
microcontrollers among hobbyist. You can by them at about any electronic
component store/distributor. Check out for example. To program them
you either:
?
(1)
Need a programmer. Which can be pretty expensive. But if you have one of those,
then you're set for a long long time.
(2)
You can get a In-Circuit Debugger which will program a few Flash
parts.
(3)
Make your own programmer (tons of schematics for this on the web) and use
in-serial programming.
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Mounir
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Teodoro M. Villamarzo
Hi Mounir,
toggle quoted message
Show quoted text
Thanks for the concise definitions. I suspect that you can make mechanical devices using them. Maybe even a small robot? I haven't seen one, though. Are they commercially available? And how do you program them? Ted At 04:12 AM 11/1/01 +0000, you wrote:
Hi Ted, |
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d nixon
You'd get a better answer on the PIC group.
From: "Teodoro M. Villamarzo" <tedmv@...> _________________________________________________________________ Get your FREE download of MSN Explorer at |
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Mounir Shita
开云体育I
would disagree with everyone who thinks PIC discussions doesn't belong to this
group either. I think we're beyond the times where you could do everything with
discrete components. These days microcontrollers belong as much to Basic
Electronics as a transistor and a diode.
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Mounir
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d nixon
Yes, microcontrollers are electronic devices, but the discussion of them has generated so much traffic that they have their own group.
Should we discuss electronics on the Physics group? -Mike From: Mounir Shita <mshita@...> _________________________________________________________________ Get your FREE download of MSN Explorer at |
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Jim Purcell
Mike,
Yes, microcontrollers are electronic devices, but the discussion of them hasWell, list groups are not necessarily so specialized that they don't overlap topics. I would say that the group owner should decide but I see nothing off topic about micro controllers. Unless you consider the list name, Electronics 101. OTOH we were getting into some pretty abstract and more advanced discussions of capacitors and charge. Jim |
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