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Altera_Forum's avatar
Altera_Forum
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15 years ago

Remote Update Controller - Problem

Hallo together,

I'm using an Cyclone iv. What I want to do is to switch between a factory image and a user image in epcs64.

So I thought I could simply use the Remote Update Controller. I programmed the flash like this:

0x000000: Hardware_Image_1

0xxxxxxxx: Software_Image_1

...

0x100000: Hardware_Image_2

0xxxxxxxx: Software_Image_2

Hardware_Image_1+Software_Image_1 are loaded correct over the epcs-controller (default boot copier). Software_Image_1 then induces a reconfiguration after a short time.

Then Hardware_Image_2 is loaded (I can see that at some LEDs) but here comes the Problem: not Software_Image_2 but Software_Image_1 is loaded! (Hardware_Image_1 and Hardware_Image_2 are equivalent except the offset in flash and two LEDs. The Qsys System is the same).

So is it right that I had to modify the default boot copier to load the right Software Image??

How could I do this?

If my way of looking at this problem is right, I had to modify the default boot copier in the following way:

1) I had to identify in the boot copier which hw-image has been loaded.

2) If I had done this, I had to load the sw-image behind the hw-image which has been loaded.

So, I have no idea how could I modify the default boot copier in this way. I hope someone could help me.

Thanks for your Help!

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  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    Hallo together,

    now I think I could modify the default boot copier. But the next problem followed quick.

    How can I insert my modifyed boot copier in the ram from the epcs controller?

    First I tried to change the *.hex file in the Qsys-Projekt directory. I overwrote it with the modifyed *.hex file. But it seems if the default boot copier is still used.

    Then I tried to modify the *.c sources of the boot copier, in the altera install directory. But no effect.

    So does somebodey know, how I can use my modifyed boot copier in epcs-controller (in the qsys system)?

    Thanks

    sim
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    I also know this example already, but it doesn't help me. :) This is only the example of the advanced boot copier...

    Any other ideas?
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    Thanks for the answer,

    I know this document already, but this document gives me no idea how to modify the boot copier. Sadly it only describes the general procedure of booting.