patacongo commented on issue #274: Improve sim timer URL: https://github.com/apache/incubator-nuttx/pull/274#issuecomment-586394703 Some time back, i attempted to implement a timer for the simulation using a host timer on a timer pthread . I ran into the same problems as I did when I tried to implement simulated interrupts: https://cwiki.apache.org/confluence/display/NUTTX/NuttX+Simulation Basically, you cannot do a NuttX context switch from the context of a host signal handler or from host pthreads. I still have the host-based timer implementation and can send a tarball to anyone who is interested. It is from 2014 and so would need some minor environmental updates.
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