Is there away to put the serial COM port into local loopback mode?
Regular COM PC DTE, not virtual USB COM port.
I like to test my serial communication code (C++) without connecting to DCE AKA modem. I know modems can be put into local or remote loopback, but I don't have one handy.
I believe the initial IBM PC used a chip which could be controlled that way. Not sure how to identify such ability in my PCI "add on" COM ports card.
I really do not need any other EIA232 signals so in a pinch I'll just connect TX to RX at the plug.
Regular COM PC DTE, not virtual USB COM port.
I like to test my serial communication code (C++) without connecting to DCE AKA modem. I know modems can be put into local or remote loopback, but I don't have one handy.
I believe the initial IBM PC used a chip which could be controlled that way. Not sure how to identify such ability in my PCI "add on" COM ports card.
I really do not need any other EIA232 signals so in a pinch I'll just connect TX to RX at the plug.
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