WAITMS

WAITMS

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Action

Suspends program execution for a given time in mS.

 

 

Syntax

WAITMS mS

 

 

Remarks

Ms

The number of milliseconds to wait. (1-65535)

 

No accurate timing is possible with this command.

In addition, the use of interrupts can slow this routine.

 

 

See also

DELAY , WAIT , WAITUS

 

 

ASM

WaitMS will call the routine _WAITMS. R24 and R25 are loaded with the number of milliseconds to wait.

Uses and saves R30 and R31.

Depending on the used XTAL the asm code can look like :

 

_WaitMS:

_WaitMS1F:

 Push R30                 ; save Z

 Push R31

_WaitMS_1:

 Ldi R30,$E8         ; delay for 1 mS

 Ldi R31,$03

_WaitMS_2:

 Sbiw R30,1 ; -1

 Brne _WaitMS_2         ; until 1 mS is ticked away

 Sbiw R24,1

 Brne _WaitMS_1         ; for number of mS

 Pop R31

 Pop R30

 Ret

 

 

Example

WAITMS 10  ' wait for 10 mS

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