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Altera_Forum's avatar
Altera_Forum
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17 years ago

DMA controller in SOP buidler question

I'm using SOPC Builder to integrate into my system v8.0 sp1. * A new DSP builder component with 2 Avalon Slave (Read & write Fifo's) * 2 DMA controller (Avalon master) to load data to the dsp...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
17 years ago

You are correct in all of your assertions. You have not made any mistakes. The reason the base addresses of your read and write slave ports do not show up in your "system.h" file is because they are not connected to the NIOS processor's data bus. Therefore the NIOS has no knowledge of their existence.

So how to get around this.

1 - You can go ahead and connect the slaves to the NIOS' data master even though you have no reason to access them. This will force the base addresses to show up in system.h.

2 - I seem to remember there being some way to force SOPC builder to include the component information in "system.h" without attaching it to the bus. Let me look into this and see if I can find it. I might be wrong on this.

Jake