MCC MIIC-203 Guida Utente Scaricare il pdf (Pagina 55)

Set the destination I

C Slave Address (Hex 0,2...FE) for all subsequent Master

Transmit or Receive operations.

Command: /Dxx[CR] 'Set Destination I

C Slave Address

Response 1: * 'iPort/USB Ready

Response 2: /I89[CR] 'Invalid Command Argument

Default Setting: 00

Echo/Prompt Control

This command enables or disables data entry echo and prompts used as feedback to

manual operations from a computer terminal.

Command: /E[0|1][CR] 'Echo/Prompt Control [0 = Off, 1 = On]

Response: * 'iPort/USB Ready

Default Setting: Off

Serial Communications Flow Control

Select the serial communication handshaking protocol to be used in communicating

with the Host computer.

iPort/USB implements either XON/XOFF (by default) or RTS/CTS flow control

protocols. Flow control is used by the iPort/USB to limit character flow to and from

the Host computer to avoid overflowing internal communication buffers and lost

data.

The XON/XOFF protocol inserts characters directly into the ASCII data stream.

XON (Hexadecimal 0x11) is used to enable the flow of data. XOFF (Hexadecimal

0x13) is used to stop the flow of data.

The RTS/CTS protocol uses two additional wires in the cable connecting

communicating devices. The RTS wire is an output signal. It indicates that the

device generating the signal has buffer space available, and can receive data. The

CTS wire is an input signal. It indicates that the other device has buffer space

available, and can receive more data.

In general, XON/XOFF requires a minimal three-wire connection, Ground,

Transmit Data, and Receive Data. This protocol does insert control characters into

the stream of data, and may not be appropriate for all Host systems. If supported,

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MCC MIIC-203 Guida Utente Pagina 55