Actual example of using 8259s (PIC) in master/slave mode

[khorram]

Hi everyone,

I need to have an actual example of using 8259 interrupt controllers in a real system (in master and slave mode).

I also need to know when "special fully nested mode" and "special mask mode" will be used (in a real system).

regards,
khorram

 

[Pinczakko]

I think an "example code" from BIOS of x86 mainboard is enough for your purpose. You can disassemble a mainboard BIOS to find out this routines. However you will need the datasheets of the chipsets. If the chipset is made Intel, the datasheet is freely available from intel website. To begin with, you can read my article on how to disassemble an x86 BIOS at : hxxp://www.geocities.com/mamanzip/Articles/Award_Bios_RE/Award_Bios_RE_guide.html

 

[xqiang]

Maybe the award bios source code will help you a lot. you can search the web for the source.

 

[khorram]

Hi Pinczakko,

I could not access the address you have specified. Is it possible for you to upload the articles here that i can download them.

Regards,
KH

 

[papyaki]

Hi,

Look at these links

h**p://www.koders.com/c/fidA63BC61C93FC252AF8E836CAE6F92BAB8446FAEB.aspx

h**p://www.koders.com/c/fidBB5B6FEED8CDFD9FF59803AA4D39BAEBF7A5F1F6.aspx


Replace * by t