Hi, If i want to have the output to be written to RAM available in my DE-2 board. Can anyone give me some guideline on how to start doing it? I dont have any idea of how to do it. Thanks alot

Your question is too vague. What output are you referring to? Jake

hi Jake erm..actually i have written a code that perform some arithmetic calculation. i can get the result from simulator but when i download the code to fpga, i need to have the result stored in somewhere so that i can retrieve it. so i was thinking perhaps i can write the output to RAM ? and try to read the output from there?

Okay so you've got some piece of code in your FPGA that's going to perform some calculation. How often does it do this? Let's forget about RAM at this point because so far your problem description doesn't indicate RAM to be the required method. Once you get the result, you would like to read it. Where exactly are you reading it to? A host PC? Are you really just wanting to see the result of the calculation? Jake

hi Jake at the moment i just only want to read the result of the calculation that's it. so any advice on how should i do so?

Use SOPC builder to create a system with a NIOS processor, some onchip memory, a jtag uart, and an input PIO. Outside the system, connect your calculation result to the PIO. Then you write a small piece of C code that simply reads the PIO port and prints the result out the jtag uart. Jake

Ram | Altera Community

14 Replies

Altera_Forum
Honored Contributor
17 years ago
Another solution may be to instantiate an ALTSYNCRAM Megafunction (of the proper size) in your design and write into its write port all your output data. Then connect to its read port an UART module which can be used to drive an external RS232 transceiver. So the RS232 connection with a COM port of your PC may complete your job.
Altera_Forum
Honored Contributor
17 years ago
--- Quote Start ---
Another solution may be to instantiate an ALTSYNCRAM Megafunction (of the proper size) in your design and write into its write port all your output data. Then connect to its read port an UART module which can be used to drive an external RS232 transceiver. So the RS232 connection with a COM port of your PC may complete your job.
--- Quote End ---

ok ok..i will try out! thanks
Altera_Forum
Honored Contributor
17 years ago
cLaRe,

My appoligies. There was a small bug in the C code of my first ZIP file. Here is a corrected version.

Thanks,
Jake
simple_sopc.zip1.1 MB
Altera_Forum
Honored Contributor
17 years ago
Jake,

Thanks alot!!! :D

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Ram

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