I am developing and testing software in a circut useing 89C51RD+ chip. My circuit isn't very testable since it doesn't have any human interfaces just Parallel I/O to and from a ARINC 429 interfaces and a RS422 serial output. The circuit takes data from the input ARINC interface, massages it with data from the RS422 interface and transmitts the data on the output ARINC interface.
The RS422 recieve portion is controlled by a serial interrupt routine
void serialCom(void) interrupt 4 using 2
. I am looking for a way to watch (track) the operation on a Keil U 3 Vision development platform. The entire operation is keyed upon reciept of a serial data interrupt.
How do I set up for interrupts and feed data in? Ist there a way to simulate serial input data? any other suggestions would be appreciated- I am new at the Kiel system.