SPRUIZ1B July 2023 – August 2024 TMS320F28P650DH , TMS320F28P650DK , TMS320F28P650SH , TMS320F28P650SK , TMS320F28P659DH-Q1 , TMS320F28P659DK-Q1 , TMS320F28P659SH-Q1
The SEC units count accurately only when the CPU is operating in normal conditions. If the counters are running and capturing the CPU cycles while the CPU is controlled through the debugger to single-step through the code, then the result can differ from when the CPU was executing the code in normal conditions.