SPRUIU9B August 2020 – September 2022 TMS320F280033 , TMS320F280034 , TMS320F280034-Q1 , TMS320F280036-Q1 , TMS320F280036C-Q1 , TMS320F280037 , TMS320F280037-Q1 , TMS320F280037C , TMS320F280037C-Q1 , TMS320F280038-Q1 , TMS320F280038C-Q1 , TMS320F280039 , TMS320F280039-Q1 , TMS320F280039C , TMS320F280039C-Q1 , TMS320F280040-Q1 , TMS320F280040C-Q1 , TMS320F280041 , TMS320F280041-Q1 , TMS320F280041C , TMS320F280041C-Q1 , TMS320F280045 , TMS320F280048-Q1 , TMS320F280048C-Q1 , TMS320F280049 , TMS320F280049-Q1 , TMS320F280049C , TMS320F280049C-Q1 , TMS320F28P550SJ , TMS320F28P559SJ-Q1
Execution can reach main() either after a device reset and through a C initialization routine call to main(), or during LFU, from the LFU entry point calling the LFU Compiler initialization routine and then main(). In the former case, device specific initializations in main() need to occur, but not in the LFU case. To distinguish the two, a hardware flag in a register is supported, which indicates whether LFU is currently active or not.