Tool/software: TI C/C++ Compiler
"Multicore Fixed and Floating-Point Digital Signal Processor
TMS320C6678
3.3.21 Device Speed Register (DEVSPEED)
The Device Speed Register depicts the device speed grade. The Device Speed Register is shown below."
Hi all,
first quick question. What does the above DEVSPEED register exactly represent? Can I assume it as the CPU clock speed?
If yes, changing the speed cpu rate by cfg file should affect it. Is this assumption correct?
It seems that, changing the BIOS.cpuFreq.lo = xx00000000; do not really affect the speed rate.
Running the same piece of code at different rates on the EVM and measuring it via GPIO/oscilloscope takes always the same time. That sounds very strange.
I suppose it is due to the EVM clock but I am not sure. In addition I have a similar behavior on my final COTS board: even if I change the rate I have not detected any time variation.
Any suggestions ?
Thank you in advance.
BR,
Giorgio