OS Implementation On SOPCMidterm Presentation

Performed by:Ariel MoraliNadav Malki

Supervised by:Ina Rivkin

Project Goals

• Assemble a SOPC system, using Nios II processor on Altera’s DE2 board, based on Cyclone II FPGA.

• Implement Micrium’s µC OS-II.• Use the system to create a web server.

Achievements

• Learning and using Altera’s environment: Quartus II, SOPC Builder & Nios II IDE. Done

• Creating a small SOPC with nios II, uart and OnChip memory. Done

• Adding more peripherals to the system, like external SDRAM memory (8 MB). Done

Achievements

• Learning Micrium’s µC OS-II: Requirements, functionality, implementation flow etc. Done

• Using µC OS-II to Run two processes simultaneously. Done

Implementation flow

1. The on-chip memory is not sufficient to support the OS. For that reason we added the SDRAM 8MB external memory.In order to do that we added a SDRam controller to the SOPC, and assigned the appropriate pins.

Implementation flow

NIOS II CPU and Peripherals as seen in the SOPC Builder

Implementation flow

System Schematics as seen in Quartos

Implementation flow

2. We created a new project in the nios II IDE, and added a system library supporting theµC OS-II.

Implementation flow3. We configured the system library properties.

For example, We changed the memory used by the OS to SDRAM memory.

Implementation flow4. The OS can be

configured via the RTOS options window.For example we can include\disinclude code for Mutexes, Semaphores etc.

Implementation flow5. We wrote a C++ code

which uses the OS functions in order to run several processes simultaneously.

Demonstration

You will see two processes running simultaneously:

• A snake running through the red leds and the 7 segment displays, with higher priority.

• A countdown displaying in the green leds and on the screen, with lower priority. Terminates when done.

Project Schedule

• Add three new peripherals:Add three new peripherals: VGA, Keyboard and Ethernet. VGA, Keyboard and Ethernet. Until 15.11.09Until 15.11.09

• learn how to use them with learn how to use them with µC. Until 29.11.09

• Write a small program that demonstratesWrite a small program that demonstrates the use of the new peripherals. the use of the new peripherals. Until 13.12.09Until 13.12.09

• Final presentation and report. Final presentation and report. Until 27.12.09Until 27.12.09

Thank You