neudeck@pur-ee.UUCP (Neudeck) (09/06/84)
I am writing a program that requires the async card on the IBM PC to interupt the proccesor whenever it recieves a character. I have enabled the correct intrupt on the serial card and at the 8259 but it still refuses to interupt the proccesor. Has anyone else had this problem? If so, how did you solve it? Any help at all would be greatly appreciated. Neudeck, Purdue EE P.S. I have tried my program on several different machines with no succes so I know the problem isn't due to faulty hardware.