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We are using 5 interrputs in a NIOS design (no RTOS) and when we use interrputs 0,1,2,3, and 4 we can't get them all to work. Specifically interrput 3 always gives us a hard time. When we read the NIOS interrput enable register, interrput 3 is not enabled even though is is set up in SOPC builder. However, when we use inttrrupts 0,2,4,6 and 8 the interrupts work. Has anyone seen an issue like this before? The Altera FAE has said that it is an FPGA timing issue but I still don't know how to fix it.
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Hi srandlett,
> Has anyone seen an issue like this before? It looks like the exact same problem is described here: http://forum.niosforum.com/forum/index.php...indpost&p=12266 (http://forum.niosforum.com/forum/index.php?act=st&f=2&t=3203&hl=&view=findpost&p=12266) Regards, --Scott
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