about EDMA interrupt

hello, guys,

now i'm working on a project about transfering a number of data using EDMA. so i have to write an EDMA ISR triggerd when the EDMA's done its job.

the problem is: i'm using two EDMA channels. so do i have to write two ISRs for different channel? namely, is there only one interrupt request from EDMA to CPU? or different channels send different IRQ?

kevin

thanks in advance. Start a New Thread

Hi Kevin,

Yes there is only one EDMA interrupt to the CPU.

What TI documentation have you looked at so far ? There is TI documentation explaining how to do what you describe. It is what I looked at many years ago when I coded the same thing. Have a look around the TI website. If, after reading the documentation you have more specific questions, please post them.

Good luck.

- Andrew

________________________________
From: "f...@yahoo.com"
To: c...
Sent: Tuesday, November 11, 2008 3:14:25 AM
Subject: [c6x] about EDMA interrupt
hello, guys,

now i'm working on a project about transfering a number of data using EDMA. so i have to write an EDMA ISR triggerd when the EDMA's done its job.

the problem is: i'm using two EDMA channels. so do i have to write two ISRs for different channel? namely, is there only one interrupt request from EDMA to CPU? or different channels send different IRQ?

kevin

thanks in advance. Start a New Thread

what processor?
I cannot talk for every processor, but C67x have only one interrupt, you then have in the interrupt to find the source...and treat it.
Regards Start a New Thread