MCC MIIC-203 Guida Utente Scaricare il pdf (Pagina 62)

Set I

C Bus Time-oUt in msec

Set bus time-out in milliseconds.

The iPort/USB reports a bus time-out if no inter-byte bus activity for the specified

time occurs within an I

C Bus message.

Command: /Unnnnn[CR] 'I

C Bus time-oUt (nnnn = 0 (disable)...32000 msec)

Response: * 'iPort/USB Ready

Default Setting: 10000 msec (10 seconds)

Display Firmware Version

Display firmware version

Command: /V[CR] 'Firmware Version

Response: /VCCXX.XX[CR] '(Major XX.XX Minor)

eXtended Commands

The eXtended commands are used to generate "out-of-spec" signaling. eXtended

commands cannot use the adapter’s I

C hardware to control the SCL and SDA lines,

as the I

C hardware only generates I

C compatible signals. The eXtended

commands use firmware to "bit-bang" the SCL and SDA lines. This firmware

cannot operate as fast as the hardware, and it can be interrupted at any time by

adapter internal interrupts. The eXtended commands run directly off the command

characters as they are received on the serial link. Speed of execution of eXtended

commands is controlled by the serial link communication rate, the execution speed

of the firmware, delays caused by execution interruptions that may occur while a

command is executing, and I

C Bus clock-stretching by external slave devices.

The following commands manipulate the I

C Clock (SCL) and data (SDA) lines.

Command: /X[S|~xx|R|r|P|0|1|?|D|d|C|c|L|A| |"]..., then Press Enter or ESCape

Enter /X followed by zero or more sub-commands, the [CR]

Response: /XCC(see commands below)[CR]

High Level Sub-Commands:

1 2 ... 57 58 59 60 61 62 63 64 65 66 67 ... 76 77

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MCC MIIC-203 Guida Utente Pagina 62