1. PC To GT Program Load Shachar Rosenberg Alex Normatov Technion - Digital Lab

2. Agenda * Why not Video ? Project description GT ln description PC Loader description Conclusions

3. GT & VideoLab PCI & GT oriented FOR MORE INFO... Project’s Mid Semester Report, Presentation, Specs and other relevant literature

4. What Was Completed PCI configuration PCI memory mapping AMCC ( PCI Interface ) configuration

5. The Problem VideoLab didn’t function: –Specs were studied –Monitoring PCI with Logic Analyzer –Existing drivers SW were studied Control with a PAL (undocumented) Card was poorly designed –drivers inserted delay so as to synchronize on I²C clock

6. Why Project Changed System & PCI study completed Time spent on problem investigation: –Logic Analyzer –Contacts with ADV –Code & Specs. Study Adapting drivers for VideoLab would’ve taken much time, and wasn’t project’s goal

7. Agenda 4 Why not Video ? * Project description GT ln description PC Loader description Conclusions

8. Description Loads executable code from PC to GT-based system RAM above Ethernet Project’s Final Report Software Code & Hardware Specs. FOR MORE INFO... Ethernet PCI Bus SEC - network bridge SDRAM memory GT - chipset R5000 - CPU uCode ROM

9. Project Goals Use existing SW as a basis Improve reliability of data transfer Improve user interface (and fix bugs) Add some functionality

10. Resources Galileo and DigLab equipment Reference SW from Galileo Support from Galileo 1/3 of semester for execution

11. Technology - HW Ethernet –fast data transfer between PC and SEC PCI –connects SEC and GT EPROM & E²PROM –fast programming of GT’s OS

12. Technology - SW C and Visual C++ Languages Microsoft Foundation Classes IP datagram sockets Address Resolution Protocol Windows Registry

13. Agenda 4 Why not Video ? 4 Project description * GT ln description PC Loader description Conclusions

14. General Description - ln Used to load (wait, receive and put) a program into SDRAM memory Can load to a specific address Can verify checksum Restores control registers Shows help

15. Inside ln - Map Memory Save mapping and control registers Change PCI memory mapping Initialize GT as PCI master & slave Map DRAM for PCI DMA accesses

16. Inside ln - Init. SEC Memory Find all SEC devices on PCI Allocate memory for SEC device Allocate buffers for control data structures and received packets Update SECs’ pointers to the allocated memory spaces Initialize other SECs’ data

17. Inside ln - Initialize Network Send a packet with GT’s MAC address to SEC, as a PCI burst Send a broadcast to make other Ethernet agents learn GT’s MAC Start receiving packets

18. Inside ln - Handling Packets Interrupt driven buffer allocation Poll (wait) for a new packet –Check if it is for us (not broadcast) –Check it’s packet number (any lost ?) –Calculate checksum (if needed) –Write to memory

19. Inside ln - Job’s Done Disable interrupt & ensure there’s no packets marked new “Stop” SEC’s functioning Return mapping & control registers Show results (pass/fail)

20. Agenda 4 Why not Video ? 4 Project description 4 GT ln description * PC Loader description Conclusions

21. General Description - Loader Standard Windows Application Reads & Loads programs (S3R) –Can change ARP mapping –Cheksum on/off –Big/Little Endian –Time Out between packets Saves settings (Registry)

22. Inside Loader - Packet Structure Header –0 : Start Address (in target’s memory) –1 : Length of Data (bytes) –3 : Packet Number –4 : Checksum (optional) DataHeader

23. Inside Loader - Packet Class Receives S3R string (all or a part) –Checks/Calculates address –Appends data –Leave the rest to the next (when full) Prepares itself to sending Sends itself over a socket

24. Inside Loader - Reading Serialization Incoming data “pours” into packets When packet full, prepare to send Length Checksum Endianess

25. Inside Loader - Sending Datagram Sockets Ethernet Packet Length ARP settings for IP to MAC binding Send in order of List

26. Agenda 4 Why not Video ? 4 Project description 4 GT ln description 4 PC Loader description * Conclusions

27. Tools Used/Studied IDT - gcc compiler (IDTC & IDTSIM) Logic Analyzer - setup & usage Microsoft Visual Studio EPROM programmer

28. Current Status Evaluation in Galileo No Issues yet

29. The End

30. Back Up Foils

31. Acronyms GT - Galileo Technology chipset GT64120 SEC - Galileo Technology network bridge Loader - PC Loader application ln - GT’s loadnetwork command

32. Alternatives Analysis Previous Version –Less reliable, less features –Has bugs and less user friendly Terminal Text Transfer (above RS232) –Very slow –Not user friendly