Hi guys!
I'm looking for a way to monitor, or sniff, the signals on COM1 on a laptop running Windows 98. The laptop is running a program that is communicating with a ECU for air conditioning. This program is no longer maintained. And now I'm stuck in a situation where a have to use this very old lousy laptop to get the program running. It wount run on newer computers or OS'es. And sooner or later the old laptop will die...
I need this program to send commands to the ECU, for repair and service. I can toggle outputs and read inputs. My idea is to analyze the signals, and try to send the same from another computer, a PIC or similar.
Right now I'm monitoring the signals with a scope, and there seems to be a communication going on between the ECU and the laptop continously. 3 or 4 packets of data is sent repeatidly. If I could somehow monitor/sniff/record the data, I could duplicate them from another device. A modern device, that is...
Any ideas?
Thanx!
I'm looking for a way to monitor, or sniff, the signals on COM1 on a laptop running Windows 98. The laptop is running a program that is communicating with a ECU for air conditioning. This program is no longer maintained. And now I'm stuck in a situation where a have to use this very old lousy laptop to get the program running. It wount run on newer computers or OS'es. And sooner or later the old laptop will die...
I need this program to send commands to the ECU, for repair and service. I can toggle outputs and read inputs. My idea is to analyze the signals, and try to send the same from another computer, a PIC or similar.
Right now I'm monitoring the signals with a scope, and there seems to be a communication going on between the ECU and the laptop continously. 3 or 4 packets of data is sent repeatidly. If I could somehow monitor/sniff/record the data, I could duplicate them from another device. A modern device, that is...
Any ideas?
Thanx!