Standard CAN broadcast
Revision as of 23:25, 7 September 2020 by Brentp (talk | contribs) (→Timing and Scoring integration)
Standard CAN broadcast for RaceCapture and PodiumConnect
Alert Messages
This describes the CAN format for Pit to Car alert messages.
Messages are broadcasted in ASCII character format, with a maximum of 16 characters across two CAN messages.
Message priority is 0 - 2, with 0 = normal priority used for pit-to car alerts, and 1 - 2 reserved for future use.
Base address: 0xA100 (41216)
Address for message is calculated by the base address offset by priority:
- Priority 0 address: 0xA100 (41216) / 0xA101 (41217)
- Priority 1 address: 0xA102 (41218) / 0xA103 (41219)
- Priority 2 address: 0xA104 (41220) / 0xA105 (41221)
| CAN ID | Byte 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
|---|---|---|---|---|---|---|---|---|
| Base Address | message character 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Base Address + 1 | message character 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 |
Timing and Scoring integration
CAN broadcast mapping for timing and scoring integration
Base address: 0xA200 (41472)
| CAN ID | What | Offset | Length | Formula | Units | Notes |
|---|---|---|---|---|---|---|
| 0xA200 (41472) | Last Timing & Scoring lap time | 0 | 2 | * .001 + 0.0 | min. | Last lap time as reported by timing and scoring system |
| 0xA200 (41472) | Position Overall | 2 | 1 | * 1 + 0 | ||
| 0xA200 (41472) | Position in Class | 3 | 1 | * 1 + 0 | ||
| 0xA200 (41472) | Competitor Number Ahead | 4 | 2 | * 1 + 0 | ||
| 0xA200 (41472) | Competitor Number Behind | 6 | 2 | * 1 + 0 | ||
| 0xA201 (41473) | Gap to Competitor Ahead | 0 | 2 | * 0.1 + 0.0 | sec. | Value will be zero if gap is 1 lap or greater |
| 0xA201 (41473) | Gap to Competitor Behind | 2 | 2 | * 0.1 + 0.0 | sec. | Value will be zero if gap is 1 lap or greater |
| 0xA201 (41473) | Laps to Competitor Ahead | 4 | 1 | * 1 + 0 | ||
| 0xA201 (41473) | Laps to Competitor Behind | 5 | 1 | * 1 + 0 | ||
| 0xA201 (41473) | Full Course Flag state | 6 | 1 | * 1 + 0 | 0=None; 1=Green; 2=Yellow; 3=Red; 4=Finish | |
| 0xA201 (41473) | Competitor Flag State | 7 | 1 | * 1 + 0 | 0=no flag; 1=Black Flag |
