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OPTO Link

OPTO Link. using Altera Stratix GX transceiver. Jerzy Zieliński PERG group Warsaw. agenda. Stratix GX Short Introduction Transmission Basic Block Diagram Hardware-Only Based Optical link Internal Interface in Stratix GX FPGA Environment Implementation

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OPTO Link

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  1. OPTO Link using Altera Stratix GX transceiver Jerzy Zieliński PERG group Warsaw

  2. agenda • Stratix GX Short Introduction • Transmission Basic Block Diagram • Hardware-Only Based Optical link • Internal Interface in Stratix GX FPGA Environment Implementation • 2.5Gbps optical link, with Matlab based GUI using Internal Interface • Transmission parameters measurement

  3. Altera Stratix GX Introduction • Up to 20 channels for 3.125 Gbps transceiver blocks • Up to 41,250 Logic Elements, 3 Mb RAM and 638 I/O pins • High performance architecture • Build in source-synchronous transfer protocols • Serial light protocol ready

  4. Stratix/Stratix GX Development Board

  5. Transmission Basic Block Diagram

  6. Hardware-Only Couter Test • 8bit Word Basic Transmission • without 8b/10b coding • Errors on Differential Lines • Errors during Transmission • 8bit Word Transmission with 8b/10b coding • No Error in Hardware-Based-Visual-Only Test

  7. Only-Hardware Counter Test

  8. Internal Interface • FPGA Environment • Multi-Protocol External Communication • Command & Status Words • Internal Interface BUS • Internal Interface with Components Communication • Stratix GX OPTO component • Internal Interface Implementation Ready • Full Integration with Internal Interface Communication • Other Components Communication Possible

  9. Internal Interface Inside FPGA

  10. Matlab based GUI Connection Initialization I/O Read Transmission Control Transmission Initialization Bit-Error-Rate Measurement Latency Measurement

  11. Matlab based GUI • 2.5Gbps optical link, with Matlab based Graphical User Interface using Internal Interface • Transmision Initialization • Transmitted Word Control • Bit Error Rate Tests • Latency Measurement • GUI-to-HARDWARE Full Control

  12. Transmission Parameters • Transmission Rate 2.5Gbps • Word Length 8bit • Clock Frequency 156.25MHz • First Transmitted After 200ns • Latency 30 c.c. ~200ns

  13. Future Plans • 16bit Channel Mode • Multi-Channel Transmission Component • Link to Xilinx Virtex II PRO, using the same Transmission Protocol

  14. OPTO Link using Altera Stratix GX transceiver Jerzy Zieliński PERG group Warsaw

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