First PROFIBUS interface certified on Freescale silicon

August 24, 2012 // By Nick Flaherty
TMG TE in Germany and Freescale Semiconductor have successfully certified their first joint Process Field Bus (PROFIBUS) reference design through the authorized ComDeC PI Test Laboratory in Furth.

The implementation integrates the commercial TMG PROFIBUS DP slave protocol stack on Freescale’s QorIQ P1025 multicore processor in a Freescale Tower System development platform module called the TWR-P1025, and covers layer 2 to layer 7 of the PROFIBUS standard.
“For the first time, our customers can combine their control application simultaneously with PROFIBUS and/or PROFINET industrial protocols using a single Freescale processor,” said Nikolay Guenov, marketing director for Freescale’s Networking Processor Division. “This PI-certified reference platform helps reduce chip counts and system costs by connecting the QorIQ P1025 processor directly to an RS-485 transceiver, thereby eliminating the need for separate PROFIBUS ASICs or FPGAs.”
The code developed for the TWR-P1025 can port to other QorIQ P1 family processors as well as Freescale’s MPC8309 PowerQUICC processor which are all in Freescale's longevity programme.
For PROFIBUS evaluation, the TWR-P1025 controller module is enabled with an executable version of the TMG PROFIBUS software stack, Freescale PROFIBUS layer 2 microcode and applications programming interface (API) source code.
The Freescale PROFIBUS reference platform is available now for purchase from Freescale or its distribution partners, by ordering the TWR-P1025-KIT at an MSRP of $299. The kit includes a TWR-P1025 processor module, TWR-IND-IO peripheral module, and TWR-ELEV elevator/backplane modules. The QorIQ P1025 and its single-core equivalent QorIQ P1016 processor are available now starting from an MSRP of $35.16 and $29.89 in quantities of 10,000 units. The MPC8309 processor is available now at an MSRP of $8 in quantities of 10,000 units. The commercial TMG PROFIBUS DP protocol stack is available from TMG.