PRU ICSS Profinet Slave Release Notes


The PRU-ICSS Profinet Slave package provides the foundation that facilitate application software development for Profinet Slave on TI Sitara Embedded Processors with PRU-ICSS HW IP.


Please refer to the software manifest, which outlines the licensing status for all packages included in this release. The manifest can be found on the SDK download page or in the installed directory as indicated below.

Standard Compliance

Compliant to PROFINET Version V2.3Ed.2 MU5 (V2.35b)


  • Software Developer Guide: Provides information on features, functions, delivery package and, compile tools for the release. This also provides detailed information regarding software elements and software infrastructure to allow developers to start creating applications.
  • Getting Started Guide: provides information on getting the software and running basic examples/demonstrations bundled in the package.
  • User Guide: Provides basic information on the applications
  • Software Manifest: Provides license information on software included in the package. This document is in the release at the root directory of the package
  • EVM Quick Start Guide: Provides information on hardware setup and running the demonstration application that is loaded on flash. This document is provided as part of the EVM kit.

Release 01.00.03

Released Jan 2019

System Requirements

System Requirements

What’s New

  • Isochronous Mode support in firmware
  • Support for PNIO Test bundle 2018-09-25
  • Integrated HCC Embedded SNMP Stack Version 3.3
  • Bug Fixes

Features supported

  • PROFINET RT/IRT device
    • Profinet I/O RT/IRT Device(slave) conforms to PROFINET Conformance classes A,B and C functionality.
    • PROFINET I/O RT/IRT Device Features:
      • Supports minimum cycle time of 250 us
      • Integrated two-port cut-through switch, 100 Mb/s Full Duplex
        • Relative forwarder, computes the Forward FSO for RTC3 frames which have to be forwarded
      • Profinet Quality of Service(QoS)
        • Four priority receive queues on host port, each queue 6 KB in size
        • Four priority transmit queues on each physical port, each queue 3 KB in size
      • Up to 8 Application Relations (ARs)
      • 8 IOCRs
        • 8 Consumer Protocol Machines (CPM)
        • 8 Provider Protocol Machines (PPM)
        • Supports PROFINET IO data size from 40 to 1440 Bytes
      • Data Hold Timer
      • DCP Identify Filter
        • DCP Identify frame is given to host only if it is meant for it otherwise it is just forwarded
        • Reduces the DCP Identify frames reaching host at a particular node at network startup
      • One Step Time Synchronization (PTCP)
      • 1 millisecond buffering per port
      • 802.1d learning bridge for received source MAC addresses
      • PNIO static routing and custom FDB for multicast addresses
      • Interrupt Pacing
      • Media Redundancy Protocol (MRP)
        • Bump less transition of PROFINET connection to redundant path on ring break
        • Switch address learned table (FDB) is flushed in 2.4 micro seconds
      • Isochronous Mode
    • Compliant with PNIO Test bundle 2018-09-25
    • Compliant with Automated RT Tester Version
    • Compliant with Profinet IRT SPIRTA Module Version
    • Integrated with Molex PROFINET stack v5.4.2.0 evaluation version
    • Integrated with HCC Embedded SNMP stack v3.3 evaluation version

What is not supported

  • Profinet IRT MRPD support
  • Profinet IRT High Performance Profile

PRU-ICSS Firmware Revision

Platform Build Firmware Header Location
AM335x,AM437x,AMIC11x [1.7] [0.11.0] protocols\profinet_slave\firmware\v1.0
AM57x [7.7] [0.11.1] protocols\profinet_slave\firmware\v2.1

Fixed Issues

Record ID Platform Details Comments
PINDSW-1651 AM57xx,K2G Firmware discards some valid CPM frames with cycle counter zero None
PINDSW-2061 AM57xx,K2G Application forwards the Sync packets on port even if the End of Sync Domain is selected None
PINDSW-2214 AM335x,AM437x, AMIC11x,AM57xx,K2G IRT communication stability issues in multi-board chain in presence of Scalance 204 IRT Switch Issue was fixed by the Scalance 204 IRT Switch firmware update
PINDSW-2249 AM335x,AM437x, AMIC11x,AM57xx,K2G Application is not restoring data exchange when Netload Faulty tests are ran in overnight regression mode PDK update fixed the issue
PINDSW-2262 AM335x,AM437x, AMIC11x,AM57xx,K2G Application is not sending out LLDP frames and basic DCP issues OOB User now has the option to write default value to Flash. See details in User Guide:
PINDSW-2345 K2G Automated RT Tester PDEV_RECORDS test case fails for ICSS1 PDK update fixed the issue
PINDSW-2352 AMIC11x,K2G SPIRTA PTCPTimeoutFactor test case failure Issue was caused by the incorrect timer clock source configuration. AMIC11x application now uses DMTIMER4 and K2G uses GPTimer1 for accurate SYSBIOS ticks

Known Issues

This section contains the list of Known Issues at the time of making the release.

Record ID Platform Details Workaround
PINDSW-392 AM57xx IRT Mode: DUT is not responding to DCP_Ident Requests when PLC is connected to wrong port of DUT None
PINDSW-393 AM57xx IRT Mode: DUT is not responding to RPC Connect Request when PLC is connected to wrong port of DUT None
PINDSW-2170 AM335x,AM437x, AMIC11x,AM57xx,K2G Test Failures with TED Check tool 1) Interoperabilty Test failure: Use Profinet stack API to get proper values in mib integration layer (mib_impl.c) 2) Statistics Test Failure : None
PINDSW-2273 AM437x,K2G Application crashes during automated RT tester test case Pdev_check_onePort with minimum time out configuration Run the tool with default time out configuration
PINDSW-2318 AM335x,AM437x, AMIC11x,AM57xx,K2G Automated RT Tester Alarm test case fails occasionally None
PINDSW-2343 K2G Communication drops and never recovers during Netload IRT Class 3 Normal category Apply the patch PRSDK-5019-K2G_EMACLLD_interrupt.patch and rebuild EMAC LLD
PINDSW-3070 AM335x,AM437x, AMIC11x,AM57xx,K2G Automated RT tester Diff_Access_Ways test failure in RT-MRP application None