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Altera_Forum
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19 years ago

Custom Logic Integration

Hey all, I've got some custom logic with memory allocation, that is addressable through a NIOS II avalon entity. When executing code from within uClinux I notice strange behavior when writi...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
19 years ago

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originally posted by keplin@Apr 28 2006, 04:12 AM

hey all,

i've got some custom logic with memory allocation, that is addressable through a nios ii avalon entity. when executing code from within uclinux i notice strange behavior when writing to this area. when i carry out a write, i observe (through various probing techniques) a read being issued first. i'm assuming the kernel generates this.

can someone explain why this would be and if the preceding read can be avoided?

thanks again for any and all help,

matt

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Did you use uncached I/O access or address?