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Old 08 May 2016, 11:12   #465
Join Date: Jun 2010
Location: out in the wild
Posts: 1,245
Current investigation has shown that IRQs get switched off by "some software" in Z3 mode. It's a bit tedious to find that piece of software, as it does not seem to be anything in the driver itself.

If all else fails, I can probably make a fix in the hardware (CPLD programming) that keeps IRQs enabled all the time (i.e. make it a "write-once" register). However, I prefer to solve a problem at the cause, and not to fix the symptom.

Schoenfeld is offline  
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