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SiTCP for SK 1 st version

SiTCP for SK 1 st version. Jul 13, 2006 Tomohisa Uchida, KEK. Overview. Prepared The Net-list file An reference design An reference program to control bus via UDP All files in 060713SK.zip. The reference design. Implemented on Spartan 3E Starter Kit Produced by XILINX. Functions

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SiTCP for SK 1 st version

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  1. SiTCP for SK1st version Jul 13, 2006 Tomohisa Uchida, KEK

  2. Overview • Prepared • The Net-list file • An reference design • An reference program to control bus via UDP • All files in 060713SK.zip

  3. The reference design. • Implemented on Spartan 3E Starter Kit • Produced by XILINX. • Functions • TCP • A test data generator and checker • Echo back server • Can be selected by a slide-SW on the board (SW3) • UDP • Simple register file access • I have verified it on my board !

  4. Spartan 3E Starter Kit TCP Echo back Test data generation Reset SW

  5. Structure of “060713SK” folder • SiTCP_S3E_StarterKit • The reference design files. • SiTCP_FOR_SK • The net-list files and related files. • BCP • The reference program to control bus of SiTCP via UDP.

  6. “SiTCP_S3E_StarterKit” directory • Includes the reference design files. • ” Coregen” directory • Library files that are used in the design. • Generated by CORE-GENERATOR • “ISE” directory • Working directory of ISE. • I compiled with the version 8.1.03i of ISE. • “Src” directory • Source code files of the design.

  7. “SiTCP_FOR_SK” directory • Includes net-list files used to implement SiTCP. • SiTCP_FOR_SK.ngc • Net-list file of SiTCP • Asyncfifo8bx2kw* • Asynchronous FIFO • Used in the SiTCP • Copy the above files to working directory of ISE. • See the reference design. • “SiTCP_S3E_StarterKit” directory.

  8. “Src” directory • Consists of • S3E_SK_SITCP_FOR_SK.V • The top module • SiTCP_FOR_SK.V • Top module of SiTCP • TCP_TEST.V • An simple application of TCP. • Test data generator and checker. • LOC_REG.v • An simple application of UDP. • Register files.

  9. “BCP” directory • Consists of • bcp_dbg.c • The reference program. • bcp.h • Header file of ” bcp_dbg.c”.

  10. TCP: Normal sequence From a SYN packet is received to a FIN packet received. Received SYN, ACK Establish Received FIN Closed Transfer phase Closing phase The signals of TCP_TEST.V

  11. Transfer phase • TCP_ESTABLISH keeps in high level. • Should write data to send in this phase. • If TCP_ESTABLISH goes to low level, • The connection is disconnected (Normal). • A network error occurred (Error). • I recommends TCP_ESTABLISH is used to initialize front-end circuits.

  12. TCP Transmit Timing The signals of TCP_TEST.V

  13. Transmit Stop Timing Max. 8 clocks The signals of TCP_TEST.V

  14. TCP Receive Timing The signals of TCP_TEST.V Max. 8 clocks

  15. Closing Timing

  16. Closing phase • Started by TCP_CLS_REQ • Asserted by receiving a FIN packet. • When TCP_CLS_REQ is asserted, • Stop to transmit data as soon as possible. • After that, response with TCP_CLS_ACK in high level. • When the connection is closed, • TCP_ESTABLISH goes low.

  17. UDP • Use an original protocol (BCP) to access bus of SiTCP. • BCP is encapsulated in UDP packet. • I prepare a reference program. • I wrote this for debugging. • Pease, customize it.

  18. BCP header

  19. BCP header

  20. Reference program IP address of SiTCP = 192.168.0.16 UDP port of SiTCP = 4660 (0x1234) In this example, - Read 4 bytes data from SiTCP, - Addresses are from 0x00 to 0x03.

  21. Write timing

  22. Read timing

  23. If you have questions, Please ask me or Hayato-san. SiTCP is under developing. If you find bugs or problems, please report it to me. Thank you. Tomohisa Uchida, KEK (uchida@post.kek.jp)

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