OSDev.org

Posted: **Mon Mar 30, 2015 11:43 am**

Hello,

Just to confirm, the order in which we write the ICW to the PIC ports is important right ?

Because all the codes i've seen respect that order ICW1 ICW2 ICW3 and optionally ICW4.

I am sorry if my questions seems noobish, but the truth is they are

Bye

Julien

Posted: **Mon Mar 30, 2015 12:17 pm**

For your own entertainment, look at your code examples again. If you swapped something around, would the PIC be able to tell that you did just that?

Posted: **Mon Mar 30, 2015 1:29 pm**

No way it can

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PIC - order of icws'

PIC - order of icws'

Re: PIC - order of icws'

Re: PIC - order of icws'