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Altera_Forum's avatar
Altera_Forum
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20 years ago

About DMA and user logic ,help!

http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/huh.gif Hello. I have a DMA controller and LCD controller in my sopc system. LCD controller is adder to system as the user logic....
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
20 years ago

Thanks for your replying, baycool !

I have tried the code you provided ,but the ISR in my program can not works. I guess the interrupt does not occur.

And I have two quesstions:

(1) Is it necessary to post the address of read-slave port and write-slave port to the ISR?

(2) What is the difference between "main_frame_buffer" and "my_isr_context"?

Thank you again!