1. 2012 FIG Taiwan Conference February 17, 2012 Chen-Hanson Ting
eP32 Workshop
2012 FIG Taiwan Conference
February 17, 2012
Chen-Hanson Ting

2. Summary Brevia FPGA Development Kit Architecture of eP32
Implementing eP32
Memory and IO
Brevia Board and LatticeXP2
ispLEVEL and Diamond IDE
Demomnstration

3. eP32 Workshop Downnload and install DIAMOND 1.4.
Install FTDI USB driver.
Request and install DIAMOND license.
Copy ep32_xp2_5 project.
Import ep32_xp2 project.
Compile and synthesize ep32_xp2.
Program eP32 to Brevia2 Kit.
Bring up HyperTerminal.
Do exercises on eP32 through HyperTerminal.

4. Interact with eP32 Type and test the following commands: WORDS
HEX 0 80 DUMP
‘ DUP 80 DUMP
HERE .
COLD S
* * * .

5. Compile Test Commands Compile the following commands:
: TEST2 IF 1 ELSE 2 THEN . ;
1 TEST2
0 TEST2
: TEST3 FOR . NEXT ;
: TEST4 FOR 1000 FOR NEXT NEXT ;

6. Test IO Ports on Brevia2 Kit
Turn LED’s on and off:
HEX FF E !
FF E !
A5 E !
Read switches and buttons:

7. Exercise
Rewrite the TRAFFIC program for eP32 and try to compile and exercise it.

8. Final Question How can you ‘Turnkey’ the TRAFFIC program?
(‘Turnkey’ means to embed an application
program so that it runs when the board
powers up.)

9. Remarks
eP32 is the simplest microcontroller. You can understand it and make use of it.
Brevia2 is the cheapest FPGA development system. You can use it to do very useful things, if you can get eP32 on board.
The possibility is only limited by your imagination.

10. Questions?
Comments?
Still Awake?

11. Conclusion
FORTH allows you to optimize an application on all these levels:
Solve the problem with high level FORTH commands.
Change high level commands to primitive commands.
Change primitive commands to CPU instructions.
Build specialized IO devices for specific tasks.
Build special purpose computer for special tasks.