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← scantool/diag_l2_vag.h 76 lines
1/*
2 * freediag - Vehicle Diagnostic Utility
3 *
4 *
5 *
6 * Copyright (C) 2001 Richard Almeida & Ibex Ltd ([email protected])
7 * Copyright (C) 2015 fenugrec <[email protected]>
8 * Copyright (C) 2015-2016 Tomasz Kaźmierczak <[email protected]>
9 *
10 * This program is free software: you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation, either version 3 of the License, or
13 * (at your option) any later version.
14 *
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
19 *
20 * You should have received a copy of the GNU General Public License
21 * along with this program. If not, see <http://www.gnu.org/licenses/>.
22 *
23 *************************************************************************
24 *
25 * Diag
26 *
27 * L2 driver for Volkswagen Aktiengesellschaft (VAG) KW1281 protocol
28 * (Keyword 0x01 0x8a)
29 *
30 */
31#ifndef _DIAG_L2_VAG_H_
32#define _DIAG_L2_VAG_H_
33
34#if defined(__cplusplus)
35extern "C" {
36#endif
37
38#define KWP1281_KW_BYTE_1 0x01
39#define KWP1281_KW_BYTE_2 0x8A
40#define KWP1281_END_BYTE 0x03
41
42//Initialization-specific times
43#define KWP1281_T_R0 300 //before 5baud Initialization Byte (Scan Tool -> ECU)
44#define KWP1281_T_R1_MIN 80 //between Init Byte and Synchronization Byte (ECU -> Scan Tool)
45#define KWP1281_T_R1_MAX 210
46#define KWP1281_T_R2_MIN 5 //time between Sync Byte and KW1 Byte (ECU -> Scan Tool)
47#define KWP1281_T_R2_MAX 50 // (KWP1281_T_R2_MAX is relaxed from standard)
48#define KWP1281_T_R3_MIN 1 //time between KW1 and KW2 Byte (ECU -> Scan Tool)
49#define KWP1281_T_R3_MAX 20
50#define KWP1281_T_R4_MIN 25 //time between KW2 Byte and KW2 Complement (Scan Tool -> ECU)
51#define KWP1281_T_R4_MAX 50
52//After initialization
53#define KWP1281_T_R5_MIN 25 //time between KW2 Complement and 1st ECU message (ECU -> Scan Tool)
54#define KWP1281_T_R5_MAX 50
55#define KWP1281_T_RK 231 //time ECU waits before re-sending the Sync Byte if KW2 Complement was incorrect (ECU -> Scan Tool)
56//Communication-specific times
57#define KWP1281_T_R6_MIN 1 //time Scan Tool waits before sending next byte to ECU
58#define KWP1281_T_R6_MAX 50
59#define KWP1281_T_R7_MIN 1 //time ECU waits before sending next byte to Scan Tool this is 0.5ms, actually...
60#define KWP1281_T_R7_MAX 50
61#define KWP1281_T_R8 55 //timeout while waiting for a message byte (ECU and Scan Tool; R6_MAX+5 or R7_MAX+5)
62#define KWP1281_T_RB_MIN 1 //time between messages (ECU and Scan Tool)
63#define KWP1281_T_RB 1000
64#define KWP1281_T_RB_MAX 1100
65//
66#define KWP1281_NA_RETRIES 5 //number of No Ack retries before a message is discarded
67#define KWP1281_TO_RETRIES 3 //number of time-out retries before a message is discarded
68
69#define KWP1281_SID_ACK 0x09
70#define KWP1281_SID_NO_ACK 0x0A
71
72#if defined(__cplusplus)
73}
74#endif
75#endif /* _DIAG_L2_VAG_H_ */
76