A ready IrDA-compatible evaluation board ACT-IR100SD is available. IR100SD is strongly recommended to test before purchase IR8200D chip. A very useful Evaluation Kit Full Set is ACT-IR100SDK, which is: IR100SD + IR4000US (notebook/desktop USB-IrDA adapter). This is to test IR100D (connected to your device), to exchange IrDA data with IR4000US (connected to PC USB port), running hyper-terminal on top of Windows IrDA driver.
PDA, cellular phone and hand held data terminal, via IrDA beam and protocol but has only a wired serial interface. The ACT-IR8200D will handle all the detail regard IrDA protocols. It sends and receives only user data to/from the host device via the wired serial interface with hardware flow-control.
Oscillator input pin for system clock. 22.1184MHz is required. Oscillator output pin for system clock. Device terminal is ready. If low means IR8200D established IrDA link. Infrared signal input pin from IrDA transceiver. Infrared signal output pin to IrDA transceiver.
4.3 Host Interface The host interface of IR8200D is a full-duplex asynchronous serial data interface. The data bytes are transmitted via TX and received via RX. Each data byte consists of one start bit (0), 8 data bits (LSB first, MSB last) and a stop bit (1).
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The Infrared Wireless Expert Design Specification The IR port of IR8200D can be connected to most transceiver. The data is transmit by pin IrDA_TXD and data received from IrDA_RXD. The below figure is the signal specification of IrDA_TXD, it sends 1.63uS pulse infrared signal out.
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(the ellipses in Figure). The host system using IR8200D must that part itself. For example, Suppose that you have a Pocket PC, which is connecting to IR8200D by using OBEX protocol, Pocket PC (it called Client in OBEX) will send a "connect command" first and waits Server (IR8200D's host, your device) to reply "connect confirmed".
Note: Comset_IR100SD.exe program is running under windows system (98, 98SE, Me, 2K and XP) and work with com port, so if you want to configure IR8200D on PCB, you should wire all 6 host signals of IR8200D to a DB9F connector, those wires are TXD, RXD, DTR, DSR, RTS and CTS. After these done, you can change the configuration of IR8200D.
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Ignore CTS: If host device has no hardware flow control signals, only Tx, Rx and GND. Then you have to set this bit to 1, IR8200D will pass the coming data to host and doesn’t care the status of CTS.
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There is another choice for customer if you don’t want change the parameters by program but manual, or you already soldered IR8200D on PCB. The PB7~PB0 pins on IR8200D can be configured host baud rate and hardware flow control signals to fit your requirements, but you can change the Primary protocol or discovery time or slot here.
1) When IR8200D is in Primary / Secondary Pull DSR to low then IR8200D will be triggered and start to discover others IrDA device, once it found IrDA device it will send discovery command, try to establish IR link and make the specific IrDA Primary protocols connection to this IrDA device (ex.
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