Hello all,
do any of the faster application processors (Cortex-A9 and up) have data trace capabilities enabled in their on-chip debug logic? I have been looking at both Xilinx and Altera Cortex-A9 cores, and both of them appear to only provide instruction flow tracing.
Grateful for any pointers,
Andreas
No; data trace is basically impossible to implement on a modern Cortex-A profile core due to the sheer amount of data it generates (instruction trace is nicely compressible, and even that is a challenge).
Pete
I had feared something like this. Which is a pity, because we could have used high-throughput logic in the FPGA to process (application-specific compression) the address traces as well.
But many thanks for the quick reply, we'll look at an alternative approach to the problem.
Best,