Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

IORD_ALTERA_AVALON_PIO_DATA to slow?

Hi, I'm trying to capture samples from an A/D Converter and streaming them onto a PC via an ethernet connection. I've extended the triple speed ethernet design example from the Nios II v9.1 instal...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

@dsl

--- Quote Start ---

An embedded ethernet/TCP stack shouldn't necessarily require interrupts

--- Quote End ---

Sorry, you are right. I actually meant Nichestack uses two high priority TASKS not interrupts. This is valid in the standard way of operation based on Micrium RTOS, unless you use superloop mode.

Anyway what I said still applies: the OS scheduler interrupt periodically takes control over your polling loop and delays your samples by a possibly indeterminate amount of time.

Cris