Need 16F1789.h

[avatarengineer]

I've the latest version of compiler, but 16F1789 device not supported.
The 16F1783 is similar, but lacking functions of the 16F1789.

Any ideas on how to reliably modify the 16F1783.h or does
anyone have the desired include file already drafted ?

Thanks!

[asmboy]

what compiler version do you have ??

BTW =
where did you buy yours ??
i only have two pieces in DIP from the early release Microchip sampling program and i don't think ccs supports it yet


the best answer is to wait till CCS updates to include it.

[avatarengineer]

I've latest rev of everything, purchased from CCS.
The chips can be bought at Digikey for under $2.

My previous message stated that I KNOW CCS has not provided support yet, but the only thing needed is the .h file ... simple text file that defines register addresses and values.

I could bust open the 16F1783.h and make edits so it would support the 16F1789 (then save it as 16F1789.h), but then I need to check the spec for all the register addresses and values and that seems a bit tedious at the moment while I'm looking to get through this particular project quickly.

[asmboy]

the main problems in "faking it" will be memory paging shortcomings.
( it is a 16F part after all)
BUT the header file is NOT the only issue
as there are core support problems
in the ccs control database to overcome as as well.

and lastly spoofing your programming fixture to ignore the wrong device
type ID read back code.;

you may find yourself putting in much effort that will not pay off.

which supported part were you planning to spoof ??

[avatarengineer]

your questions are answered in previous posts.

My goal is to find a reliable solution.

[temtronic]

Since there are hunderds of PICs to choose from , what is 'special' about the 16F1789?
In the past, I found it easier to stick with a more powerful PIC,truly overkill for most applications, than to waste time($$$) on a smaller,cheaper PIC.
Frankly anything less than 40 pins, is NOT cost effective in the long run.While the price of the PIC is a couples bucks more,that's nothing compared to R&D labour,PCB design,debugging,etc.
Case in point, I'm using an 18F46K22 for a client's project.1000 piece run.Smaller PIC will 'save' $2000.However,I save $5000 alone by 'reusing' a previous 46K22PCB(with minor tweaks), save a week of 'code issues',again a few grand, and time for the complete project is 5 weeks ahead of client's schedule so everyone wins.


hth
jay

[PCM programmer]

[avatarengineer]

Despite no desire to justify my choices,

the 16F1789 has certain salient attributes;

1) low part cost (< $2)
2) 12 ADC (most important)
3) can clock at 32MHz (versus 8 or 16 for other 16F parts )

I would use the supported 16F1783, but it is shy a few pins I need.
The 4x Flash ROM of the 16F1789 is nice, but not likely needed.

So all in all, not much functional difference other than an extra CCP.

[PCM programmer]

If you have the full CCS IDE program (PCWH or PCWHD) you could try
using the Device Editor to add the 16F1789. This post has instructions:
http://www.ccsinfo.com/forum/viewtopic.php?t=29362
You could use the 16F1783 as a base, and then copy it, as suggested
in the instructions.

Those instructions are for CCS vs. 3.249. The Device Editor probably
changed in appearance since then. Here is a more modern screenshot
of it. I don't know if it reflects the current compiler version, because
I don't have the full IDE:
http://www.ccsinfo.com/images/content/device_editor.gif

[asmboy]

sounds like the 18F4523 that i have used in several successful instrument designs with "great joy" as my Buddhist master would say


best of all - is very well supported and has very reliable code accuracy support - right now -- from CCS --

yes more $$ -

- but in my practice, the 16F parts are no special bargain unless
cost alone is the driver of your project.

i feel lucky in that performance is what i get paid to deliver
- and a few $$ more for a rock solid product is more in demand than cheap.

and tho i have only tested it - not deployed it yet

the 18F46K80 at abt $2.50 , 64mhz, 64kb, 4k eeprom- for most applications CRUSHES the 16F part you seem destined to "hurt yourself" with .

to the pioneers go the arrows , sez i

my vote goes with jay on this one ..