In co-operation with Freescale, IXXAT offers an adapted version of its IEEE 1588-2008 protocol software for the P2020RDB-PC REV C Evaluation board. The software is available for download as binary code and enables, together with the IEEE 1588 PTP Manager (demo version), a quick and easy introduction to the IEEE 1588 technology.

The Freescale QorIQ P2020 CPU offers hardware based support for the IEEE 1588 protocol. Both time stamping and implementation of an adjustable real-time clock in hardware enables a synchronization accuracy in the nanosecond range.

Further information about Freescale products with IEEE 1588 support can be found here .

One P2020RDB-PC evaluation board synchronized back-to-back with a MPC8360E-MDS reference board, using a synchronization interval of 0,125 sec, reaches an accuracy of +/- 80 nsec offset peaks. The standard deviation of the offset between the nodes is 16 nsec.

The startup and the synchronization are done very fast. Normally up to 10 synchronization intervals are required to become synchronized.

Fig. 1: Start of the synchronization process

The following diagram shows the offset from the master values after the synchronization initiation of a long term test.



Fig. 2: Offset from master values in synchronized status


The following diagram shows the offset from master value distribution of the long-term test:


Fig. 3: Distribution of the offset from master values


The IXXAT IEEE1588 stack offers a large number of configuration possibilities and completely implements the IEEE1588-2008 standard. Supported are the transportation protocols IPv4 (annex D), IPv6 (annex E) and IEEE 802.3 (annex F). The software also allows the operation as binary clock or transparent clock with several Ethernet interfaces.
The stack has a management API, via which a management device can be implemented.

The latest version of the IEEE 1588 binary code for the Freescale P2020RDB-PC Evaluation board can be downloaded using the following link. Access data is required for the download, which you can request here: Access data

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