> -----Original Message-----
> From: piclist-bounces@mit.edu =

> On Behalf Of G=F6khan SEVER
> Sent: Friday, February 24, 2006 7:02 AM
> To: Microcontroller discussion list - Public.
> Subject: [PIC] accurate delay routines
>
> Whereas its PIC18 family compiler it has the delay routines =

> what i'm looking for. The routines are cycle based and the =

> codes are all open for the routines. I started to
> examine the sources but i realized that they are all ASM based =

> and mostly benefitted of  PIC18 ASM. I dont have much experience
> with PIC18 assembly so it will be hard for me to adopt them =

> for PIC16 family. Are there any other open-source cycle based =

> delay implementations which will facilitate my coding works?

I look into the delay routine source codes of C18 and they
are quite simple. You have to learn some assemblies anyway.

Back to PICC, maybe the following example macros can =

serve as a starting point for you.

#define delay_1tcy() asm("\tclrwdt") //(or use nop)
#define delay_2tcy() asm("\tincf pcl, w")
#define delay_4tcy() delay_2tcy();delay_2tcy()
#define delay_5tcy() delay_4tcy();delay_1tcy()
#define delay_10tcy() delay_4tcy();delay_4tcy();delay_2tcy()

Another thing is to use simulator and that will count the
total delay time for you.


Regards,
Xiaofan

-- =

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