Currently I am stuck between ordering either of 2 components, the 18F1320 or the 18F1220. The 1220 is cheaper but has less memory. Am I going to need that extra memory, since they will be doing simple flashing lights, etc.

 

I chose the 18F1320 for my PIC tutor board, that said the 18F1220 seems better suited for motor control. For flashing lights either will work fine.

__________________
Bill
Smart Kits build Smart People
http://www.blueroomelectronics.com/

 

When ordered from Microchip in one of quantities, the prices are $2.44 and $2.69 a difference of 25 cents. If you later go onto bigger projects the 2K limit of the smaller chip may become a problem. If the saving was significant then I would go for the smaller chip but $0.25 is just not worth worrying about. I have managed to fill a 1320 just playing around in C18 and Swordfish.

<edit>stupid question removed</edit>

Mike.

 

If you are going to be teaching microprocessor development
I suggest you join Microchip's academic program. I teach at
the the high school level and they have been very supportive.

Microchips supports education and allows schools to order chips
through the sample program.

I like the 18F1330 because it has 3 hardware breakpoints and
allows the use of the PLL with the internal clock for operation
at 38Mhz without a crystal.

From an educational standpoint the 2 extra breakpoints and the
speed are a plus. The downside is that it has fewer timers. The
18 pin 18F chips are similar enough that you can switch between
them if needed.

3v0

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BCHS/3v0's Tutorials
Junebug USB PIC programmer kit., USB Bit Whacker,
The 15 Minute Printed Circuit Board! (+drill time)

 

How do you find the number of breakpoints a device has? It's not in the data sheet.

Mike.

 

It used to be in the "Product Comparison Utility:" web page. I think it was also in the parametric product finder.

Perhaps they were lost in an effort to simplify the tables or product selection process. Does not make much sense.

3v0

__________________
Please post questions to the forums. PM's are for personal communication.

BCHS/3v0's Tutorials
Junebug USB PIC programmer kit., USB Bit Whacker,
The 15 Minute Printed Circuit Board! (+drill time)

 

32Mhz. I will be ordering the 18F1230 as it has the internal PLL.

 

At a cost of $0.25 I would choose flexibility.

This is like ordering calculators with the 4 basic functions as you assume they will not progress beyond the times tables. Be ambitious and spend that 25 cents.

Mike.