Innovate-motorsports OT-2 SDK Manual do Utilizador descarregar pdf (Página 47)

Command ‘O’ – Output Data and (optionally) look for input

Sent: Variable

{

U8 Cmd; // ‘O’

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

U8 Replies; // Expected number of replies

// 16 max

U8 Len; // Data length 1-32 (32 must

// include CRC)

// If the high bit is set, the

// firmware will calculate and

// append a CRC byte for you

U8 Data[(Len&0x7F)]; // Data Bytes to Send

}

Responds: Variable (1 byte minimum)

{

// 0 to ‘Replies’ of

{

U8 Len; // Bits 0-6:

// Data length of packet

// 32 bytes maximum, CRC is

// included in Len and Data

// (below)

// Bit 7:

// CRC test, 1=failed

U8 Data[(Len&0x7F)]; // Received Data

}

U8 End; // Always 0xFF

}

Notes: Replies is for J1850 packets.

If replies is set to 0, the message will be sent, but the

0xFF will immediately be returned, regardless of ‘Timeout’.

Timeout is per message. If replies is set, the 0xFF will be

returned after either a) the desired number of replies is

received or b) this time is reached without a new reply.

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

timeout of 100 mS.

1 2 ... 42 43 44 45 46 47 48 49 50 51 52 ... 75 76

Sem comentários

Innovate-motorsports OT-2 SDK Manual do Utilizador Página 47