The project I’m working on has some very time sensitive components. Because of this I thought the low overhead log_info0() function would be perfect. From what I heard, the overhead for this should be around 40 cycles. But when I put this in practice I’m seeing it take 3793 cycles (25 uS in my 150 MHz system).
Have a look at the code snippet below followed by the Raw Log. The time between the first two Log_info0() commands is 3793 cycles (82581236-82577443). What’s interesting is that it make no difference how long the string is. I thought this might be an issue so I change the first command to log “S* and the second to log “S1”, but I got exactly the same time difference.
Could there be something with my emulator that’s slowing me down? I’m using a XDS510 USB on an eZdsp F28335 board.
Ed
