Problem with time delay

[Bottna]

Hello!
My namn is Evald,and I am doing a project where I need time delay in µS.
I use mikrobasic.I have Velleman K8048 PIC programmer board. I uses a PIC16F628,and
4MHz timebace.I have a problem:When i run the time delay in ms,it works OK.
I see a small text "Time-in-ms:Word".When I try to run in µs,it does not work.
a text like "Time-in-µs:Word"can i not see.
Her is a simplified code:

Main:
TrisA=1
TrisB=0
While (1)
Cmcon =7
'********************
If (portA.0=1)
Then portB.0=1
Delay_ms(100)
PortB.0=0
Delay_ms(150)
'*******************
End if
Wend
End.

Now,is the time delay in ms.if I change to µs,so it works not.
Maybe not the PIC rght configurerad,or is not right with variables or constants.
I do not know much about programming,so Ineed help of someone who is good at this.
Evald

 

[Nigel Goodwin]

Are you allowed to use uS in the delay command?, at 4MHz clock sped the instruction time is at least 1uS, so you can't have 1uS resolution in a BASIC instruction (and struggle in assembler for short ones).

 

[3v0]

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