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AM64x INDUSTRIAL COMMUNICATIONS SDK
2025.00.00
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AM64x INDUSTRIAL COMMUNICATIONS SDK
2025.00.00
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This software is designed for the TI SoCs with PRU-ICSSG IP to enable customers to add HSR-PRP (High-availability seamless Redundancy and Parallel Redundancy Protocol) Dual Attached Node support to their system. It implements HSR-PRP functionality and provides HSR-PRP FPGA like functionality integrated into TI SoCs.
HSR-PRP is an Ethernet based communication technology commonly deployed in smart grid substation for low cost, easy to maintain and interoperable common network infrastructure with built-in redundancy. They exist as an LRE (Link Redundancy Entity) between the MAC and Network layer above providing a transparent view of the MAC below to the application.
HSR-PRP firmware for PRU-ICSSG is a black box product maintained by TI. HSR-PRP FWHAL(Firmware and Hardware Abstraction Layer) enables initialization of an interface in HSR or PRP mode and acts as an interface with the enet driver and PRU-ICSSG. Firmware is based on 333 MHz clock frequency for PRU-ICSSG Core Clock and IEP Clock.
| Feature | Description | Implementation |
|---|---|---|
| High-Availability Seamless (HSR as per clause 5 of IEC 62439) | Redundancy Operates as a DANH, Supports mode H as per standard, Two ports as per standard (Port A & Port B) | Yes |
| Parallel Redundancy Protocol (PRP as per clause 4 of IEC 62439) | Redundancy Operates as a DANP, Two ports as per standard (Port A & Port B) | Yes |
| Quality of Service (QoS) | 8 priority receive queues on host port, 4 priority transmit queues for each physical port. | Yes |
| Node Table | HSR-PRP LRE FWHAL based implementation configured with 256 entries by default. | Yes |
| Multicast Filtering | Support for Multicast Packet Filtering using FDB | Yes |
| VLAN Filtering | Support for VLAN Filtering for host port using FDB | Yes |
| Duplex | Full | Yes |
| Half | No | |
| Speed | Auto | Yes |
| 1000Mbps | Yes | |
| 100Mbps | Yes | |
| 10Mbps | Yes | |
| Statistics | Supports MIB statistics | Yes |
| PTP/1588 – Time Synchronization | PTP, Supports P2P clock | No |
| HSR-1G average cut-through latency | 1.97 microseconds (RFC-2544 Latency test) | Yes |
| HSR-1G forwarding throughput | 2Gbps (bidirectional traffic of mixed sizes from 64B to 1518B) | Yes |
| Folder/Files | Description |
|---|---|
| ${SDK_INSTALL_PATH}/examples/industrial_comms | |
| hsr_1g_demo | HSR Example Files |
| prp_1g_demo | PRP Example Files |
| ${SDK_INSTALL_PATH}/source/industrial_comms/hsr_prp_1g | |
| icss_fwhal/firmware/hsr | HSR Firmware for the PRU cores in PRU-ICSSG. |
| icss_fwhal/firmware/prp | PRP Firmware for the PRU cores in PRU-ICSSG. |
| icss_fwhal/lib/ | HSR-PRP LRE library files |
| icss_fwhal/src | HSR-PRP LRE source files |
| icss_fwhal/*.h | HSR-PRP LRE interface files |
| Abbreviation | Expansion |
|---|---|
| PRU-ICSSG | Programmable Real-Time Unit Industrial Communication Subsystem - Gigabit |
| HSR | High-availability seamless Redundancy Protocol (A redundancy protocol) |
| DANH | Dual Attached Node (HSR) |
| PRP | Parallel Redundancy Protocol (A redundancy protocol) |
| DANP | Dual Attached Node (PRP) |
| LRE | Link Redundancy Entity |
| MII | Media Independent Interface |
| DL | Datalink Layer |
| PTP-1588 | Precision Time Protocol (IEEE time synchronization protocol) |
Please see APIs for HSR-PRP LRE Driver for API documentation.
1.8.20