Hi,

you could have a problem using A/D as 16C73A has 8 bit resolution, and
16F873 has 10 bit. If you use A/D, it can be a (not very big) concern.

Regards,
Imre


On Mon, 21 Feb 2000, Bill wrote:

> Hi Everyone,
>
>
>      I have attempted (unsuccessfully so far) to migraite some code I've
> tested on a 20 MHZ 16C73A-JW to a 20 MHZ 16F873 flash pic. An engineer at
> Microchip
> told me that they are pin for pin compatible and are functionally very
> similar, so it should be a no-brainer.  --Turns out it's requiring brains
> after all (I am not surprised). I have a standard Hitachi 4 x 20 LCD which
> does not seem to initialize and I get no characters displayed. However, an
> interrupt routine which worked on the 16C73A seems to work ok, so it must
> be a timing issue of sort. Does anyone out there know of any migration
> issues when porting code written for a 16C73A to a 16F873?  I have checked
> Microchip's web-site and cannot find any such migration document although
> you would think one should exist. Any help would definitely be appreciated.
>
>
>               --Bill
>
>