Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Register Log in

EP2C8Q208C8 without sdram

Status
Not open for further replies.
L

lgeorge123

Full Member level 2
Joined
Jun 13, 2004
Messages
130
Helped
0
Reputation
0
Reaction score
0
Trophy points
1,296
Location
Hong Kong
Activity points
1,403
I start a project using EP2C8Q208C8 and tried to use it without sdram ( as I have enought ram ) , after using sopc builder Compile a error
" Warning: cpu_0: Reset vector and Exception vector cannot be set until memory devices are connected to the Nios II processor "
so is it possible to use EP2C8Q208C8 without sdram ????
 

I don't think so, NEOS needs a lot of memory, I had problem instatiating it on the BeMicro board that comes with 128kx16 bit memory, so I assume you have to do a lot of cleaning to do before you can use it without external ram.
 
Hello,

It seems that you didn't put some onchip memory into your sopc design. Onece it's done, double clic on your Nios component and set reset vector and exception vector to that On-Chip memory.
Of course it is possible to use a NiosII without SDRAM....However, onEP2C8 you only have 20Ko of RAM so you'll have to take care of removing fancy stuff in your BSP to produce a small sized code.

Regards,
Franck.
 

Status
Not open for further replies.

Similar threads

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top