Re: GERMS in NIOSII

Altera_Forum · ‎07-20-2005

My Question is with GERMS and NIOS II does the command (detailed below) still support writing to flash memory?

M0700000:AAAA AAAA

(This is a example write to memory including flash that was used in previous versions of NIOS)

Thanks for your help!!

Altera_Forum · ‎07-20-2005

Yeah,I got a similar question with you:

Can GERMS monitor be used in NiosII?And,how?

Altera_Forum · ‎07-20-2005

Yes, Germs can be implemented in NIOSII it requires the following,

1) Add "Legacy On Chip Memory" component.

(a) Select ROM in the Attributes Tab

(http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/cool.gif Select GERMS in the Content Tab

2) Make sure you have a Uart that you can talk to GERMS with,

I use a RS232 port at 115200 baud

3) Goto More CPU settings and select Legacy SDK support. You must

select this or the GERMs monitor will not get compiled at compile time.

4) Change the "Reset Address" "Memory Module" to the name of the Legacy on

chip memory that you made above.

5) Under "Host Communications" in the Legacy section change it to the Uart you

want GERMS to communicate on.

After you have done the above compile your NIOS and then compile your Quartus

project and GERMS should bootup for you.

My original question pertains to CFI for flash, and was it ported to GERMS in NIOSII?

Good LUCK!!

Altera_Forum · ‎07-20-2005

Sorry Somehow I screwed up the formating above!!!!

Altera_Forum · ‎07-21-2005

Thanks to btaylor!

But when I added the Legacy On-chip Memory into my design,

I found SOPCBuilder gave warning message about its not recommending

of use Legacy SDk. http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/sad.gif

So I wonder whether there is an alternative way to implement the function of

GERMS but without using Legacy SDK?

Altera_Forum · ‎07-21-2005

freezy2000

I also got the same warning when I compiled my NIOS Core, I still went ahead a finished compiling the

entire project and the tried talking to the GERMs mointor through nios2-run.exe terminal and was able

to send GERMS some commands. I was able to write data to SRAM and it worked fine, I had trouble

writting to FLASH however, it may be a problem on my circuit board that I have not yet discovered or

maybe GERMS does not support CFI. Not sure at this point.

There maybe away to use GERMs without Legacy SDK if you can find the GERMS.hex file and then

use the ON Chip memory component in the MEMORY folder. Then change the reset location to that

location. Maybe it would work.

Good Luck with your efforts in using GERMS.

Altera_Forum · ‎07-24-2005

Btaylor

You are not doing anything wrong. Someone screwed up.

I have actually rewritten part of the GERMS monitor. I have lots of legacy stuff out there and actually prefer to use the simple RS232 progamming method for many obvious reasons.

I would also have thought that my board was stuffed was it not for the fact that I used an old board with NIOS1. I would program the Flash with NIOS1, reload with NIOS2 and be able to read the data, but not write or erase.

It all has to do with the byte, word and double word methods used to write to the Flash (also still have a problem writing to a CS8900 in NIOS2). I took the NIOS1 code and looked how the data was written and then rewrote the code for NIOS2 GERMS. So far it is working.

It appears that most or all people are using the Flash Programmer via JTAG and thus have not experienced the problem. Those who do think they are doing something stupid and keeps quiet about it.

I am rather busy at the moment but need to use the code myself in the next 2 weeks. If I have time I will post it.

victors.

Altera_Forum · ‎07-25-2005

victors

Thanks for the information. I look forward to seeing you post. I also have a lot of Leagacy first Generation NIOS out there

and have just started working with NIOS II. I would like to see GERMS for NIOSII working.

I appreciate your help!

Btaylor

Altera_Forum · ‎07-26-2005

I am busy with a new NIOS II board for a client. Must have GERMS ready for that. When it is complete I will post it.

Altera_Forum · ‎03-22-2007

Hi,

I need to use GERMS with NIOS II. I have with me Quartus version 6.

I tried to add legacy on chip memory. I was able top add it but i got error while generating system saying legacy SDK is not enabled.

However i do not know how to enable it......... http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/sad.gif

Altera_Forum · ‎03-22-2007

I would like to add GERMS in NIOS II . i am using QUARTUS verson 6.

However when add the legacy on-chip memory and try to genrate it says Legacy SDK not enabled. I am not able to do so................. http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/sad.gif

If this is not possible is ther any other alternative method ........ or anything other than GERMS...........

Altera_Forum · ‎03-23-2007

--- Quote Start ---

originally posted by faizal_kotta@Mar 22 2007, 03:40 PM

i would like to add germs in nios ii . i am using quartus verson 6.

however when add the legacy on-chip memory and try to genrate it says legacy sdk not enabled. i am not able to do so................. http://forum.niosforum.com/work2/style_emoticons/<#emo_dir#>/sad.gif

if this is not possible is ther any other alternative method ........ or anything other than germs...........

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--- quote end ---

--- Quote End ---

If you just want GERMS see this link - http://forum.niosforum.com/forum/index.php...c=3754&hl=germs (http://forum.niosforum.com/forum/index.php?showtopic=3754&hl=germs)

In Quartus 6 you can reactivate the legacy sdk by editing your system .ptf file - look for the legacy_sdk items, but it is no longer supported and therefore could be removed/broken in a future release.