Forum Discussion

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

"Use separate stack for interrupts" corruption?

Hi! I have a program that runs on a NiosII, with 5 threads, and 2 interrupt sources (interrupting every 10 seconds, very slow). The fact is that I don't check the "Use separate stack...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

It could be. I've found that if I activate "Save minimum context on interrupt", ISR process faster, and also data corruption seems to happen in less situations. With this option activated, the default ISR vector reduces the register saving in 140 bytes, thus using less stack. It seems coherent.

Today I've found that part of my data corruption was due to some static buffers being written in a wrong way. This is, mora data than the length of the buffer, he he.

Also there was a function that had a memory leak (which wasn't written by me), so you can imagine the mix of both problems.

Thank you for all.

Alex