TMS570ls3137 FPU (Floating Point Unt)

hans gutenberg

Other Parts Discussed in Thread: TMS570LS3137

Hi,

I use FPU in TMS570ls3137. when a number divde by zero and FPCSR register is change.so for everythng is okey but I want to interrupt subroutine.İs it possble for this kit..Core of Tms570ls3137 do not support exception trap...How can i use interrupt subroutine when if ocuurs overflow,underflow, infinite etc..

Thank you for reply..

over 12 years ago

0 KARTHIKEYAN RAJAMANICKAM over 12 years ago

TI__Genius 11645 points

All the FPU exceptions are OR'ed and sent to the VIM Module, once you get this interrupt, you can always use the FPSCR to determine the exact cause of the interrupt.

FPU "OR" of the six Cortex R4F FPU Exceptions which is connected to VIM channel -47.

Refer to CortexR4F TRM for setting-up FPU and the TMS570LS3137 TRM for VIM setting's.

Hope this helps.

-Karthik.

0 hans gutenberg over 12 years ago in reply to KARTHIKEYAN RAJAMANICKAM

Intellectual 505 points

Thank you Karthik...

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TMS570ls3137 FPU (Floating Point Unt)