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Altera_Forum's avatar
Altera_Forum
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16 years ago

Instantiation of DMA on SOPC Builder

Hello, I have a question about instantiation of DMA in SOPC Builder. When you add the DMA controller, you must connect the read master and the write master. For me, I can connect them to any wh...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

each white dot means that this master can not reach the slave.

if you change such a dot to a black dot, then the master can access this particular slave.

you must specify the allowed / possibel connection

the read master connects to each possible source

the write master to each possible destination

but you must enable the controlport slave for the nios data master otherwise you wont be able to control the dma by software.