Innovate-motorsports OT-2 SDK Manual de usuario descargar pdf (Pagina 59)

Command ‘I’ – Look for Input Data

Sent: 3 bytes

{

U8 Cmd; // ‘I’

U8 Timeout; // Timeout (in mS) for responses

U8 Replies; // Expected number of replies

}

Responds: Variable (1 byte minimum)

{

// Optional

{

U8 Len; // Data length of packet

U8 Data[Len]; // Received Data

}

U8 End; // Always 0xFF

}

Notes: Replies is for BYTES, not packets. This expert mode has no

understanding of packets, it leaves that entirely up to

you. Unlike J1850, which will calculate CRC for you,

checksum bytes, etc., are entirely your responsibility (CRC

is a pain, but we figured you can add!)

Timeout is per byte received. If replies is set, the 0xFF

will be returned after either a) the desired number of

bytes is received or b) this time is reached without a

received byte.

Timeout cannot be set to 0, doing do will default to a

timeout of 150 mS.

ByteDelay can be set to zero, but the ISO 9141 and KWP 2000

protocols require 5 (we’ve found that 6 helps with older

Japanese vehicles).

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Innovate-motorsports OT-2 SDK Manual de usuario Pagina 59