Time Synchronization
Platform time sync essentially represents the PTP topology and PTP profile supported for development and production use cases.
Supported Profiles
| Use-cases | Supported Profile | Comments |
|---|---|---|
| Development (base config) | AVNU CDS 1.6 |
With time aware switch All networking nodes of the DRIVE development platforms are made time-aware systems/nodes, such as the Tegra CPU nodes, which act as time-aware end-stations, and all switches acts as time-aware bridge (Only AVNU CDS 1.6 profile). Orin development platforms have total 2 different models of Ethernet switches connected on board.
Both the switches has its own internal MCU and firmware capable of handling the PTP (AVNU CDS 1.6 profile ) locally in side switch. Hence switches are made time-aware bridge by enabling the PTP support in its firmware. All the external ports coming out of switches supports PTP with static PTP roles. |
| Production (safety config) | AUTOSAR Time Synchronization Protocol (pdelay disabled) | With Switch PTP Bypass (Switch Internal CPU disabled) |
Platform PTP Topology and Port Roles
3710 : Platform PTP Port Roles
3663: Base Config : Development
3710: Safety Config : Production
3663 : Safety Config : Production
Port Roles
3710 : Platform PTP Port Roles
| Platform Ports (Internal/External) | Connecting External Port/ Internal Node | Development Use Case | Production Use Case | ||||
|---|---|---|---|---|---|---|---|
| Port PTP Role | Protocol Support | PTP device allowed to connect to this port (role/protocol) | Port PTP Role | Protocol Support | PTP device allowed to connect to this port (role/protocol) | ||
| Switch-1 (88Q5072) - Port 1 | MateNET Connector J11: P1 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch-1 (88Q5072) - Port 2 | MateNET Connector J11: P2 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch-1 (88Q5072) - Port 3 | MateNET Connector J11: P3 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch-1 (88Q5072) - Port 4 | MateNET Connector J11: P4 | Secondary | AVNU AutoCDS v1.6 | Primary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch-1 (88Q5072) - Port 5 | MateNET Connector J11: P5 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch-1 (88Q5072) - Port 6 | MateNET Connector J11: P6 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch-1 (88Q5072) - Port 9 | QUAD HMTD Connector J3: P1 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch-2 (88Q6113) - Port 2 | QUAD HMTD Connector J3: P2 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch-2 (88Q6113) - Port 3 | QUAD HMTD Connector J3: P3 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch-2 (88Q6113) - Port 4 | QUAD HMTD Connector J3: P4 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch-2 (88Q6113) - Port 5 | QUAD HMTD Connector J4: P1 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch-2 (88Q6113) - Port 7 | QUAD HMTD Connector J4: P2 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch-2 (88Q6113) - Port 8 | QUAD HMTD Connector J4: P3 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch-2 (88Q6113) - Port 9 | QUAD HMTD Connector J4: P4 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch-1 (88Q5072) - Port 10 | Tegra- MGBE 2 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch-2 (88Q6113) - Port 10 | Tegra- MGBE 3 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch-1 (88Q5072) - Port 8 | Aurix -MAC | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Tegra EQOS | RJ45 -J13 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Primary | AUTOSAR TSync (pdelay disabled) | Secondary/ AUTOSAR TSync (pdelay disabled) |
3663 : Platform PTP Port Roles
| Platform Ports (Inernal/External) | Connecting External Port / Internal Node | Development Use Case | Production Use Case | ||||
|---|---|---|---|---|---|---|---|
| Port PTP Role | Protocol Support | PTP device allowed to connect to this port (role/protocol) | Port PTP Role | Protocol Support | PTP device allowed to connect to this port (role/protocol) | ||
| Switch (88Q5072) - Port 1 | MateNET Connector J3: P1 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch (88Q5072) - Port 2 | MateNET Connector J3: P2 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch (88Q5072) - Port 3 | MateNET Connector J3: P3 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch (88Q5072) - Port 4 | MateNET Connector J3: P4 | Secondary | AVNU AutoCDS v1.6 | Primary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch(88Q5072) - Port 5 | MateNET Connector J3: P5 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch (88Q5072) - Port 6 | MateNET Connector J3: P6 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch (88Q5072) - Port 7 | QUAD HMTD Connector J7: P1 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch (88Q5072) - Port 10 | Tegra- MGBE 2 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Switch (88Q5072) - Port 8 | Aurix -MAC | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Disabled | NA | Secondary/ AUTOSAR TSync (pdelay disabled) |
| Tegra EQOS | QUAD HMTD Connector J7: P4 | Primary | AVNU AutoCDS v1.6 | Secondary/AVNU AutoCDS v1.6 | Primary | AUTOSAR TSync (pdelay disabled) | Secondary/ AUTOSAR TSync (pdelay disabled) |
The AURIX MCU PTP role shown in above diagram is for representation purpose only (to make the topology complete). DRIVE OS does not have PTP enabled in AURIX firmware.