I'm a bit confused by the CWG setup on the PIC16F150x-series.  The datashee=
t gives a very specific sequence that should be followed, but I discovered =
that the C-code generated by the MPLAB Code Configurator doesn't follow tha=
t sequence! =20

Here is some basic Assembly code I wrote (note that it's preliminary and no=
t complete), which follows "26.11 Configuring the CWG" in the PIC16(L)1508/=
9 datasheet. Refer specifically to the "CWG Setup" section inside my assemb=
ly code below.  (A link to the PDF datasheet is also given in my code.)

https://cl.ly/0i091i3W2V3d

And here is the C code generated by MPLAB Code Configurator:

https://cl.ly/0G2W0g47410Z

NOTE: I used *.txt filename extensions (instead of *.asm and *.c) to make t=
he text readable in-browser.

I am not a C programmer, but I assume each line of C code executes sequenti=
ally as the assembly code does.  If so, then clearly the C code doesn't mat=
ch the datasheet sequence.  Note that my assembly code does match the speci=
fied CWG setup sequence (in the datasheet).

Obviously, I would appreciate hearing from someone with experience getting =
the CWG to work.  Is it not important to follow the datasheet sequence for =
CWG setup?  Also, should my NCO code come before or after the CWG code (in =
Assembly)?

Thank you,

James Wages


--=20
http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist
.