We have an embedded microprocessor that uses an SPI bus to connect to a MAX3100 UART which then connects to a MAX3120 IrDA transceiver/driver.
Eventually, there will be a similar (but different, not yet developed) microprocessor, UART. and driver on the other end of the IR link.
We're hoping to create a simple optical replacement for a two-wire RS-232 link. There will be no need for network protocols since only 1 Tx/Rx will ever be able to see more than 1 other Tx/Rx.
Since only one end of the link presently exists, we'd like to use an ordinary laptop with its IrDA capability to allow a program like Hyperterminal to substitute an IrDA port for the regular COM:x hardware port that it already knows how to use.
Alternatively, would it make things simpler to get a serial-to-IrDA adapter like the ACTiSYS ACT-IR220L?
Jim