Epilog free "naked" ISR in CCS

Kristian Dilov

Hello,

I need a way to have an epilog/prolog free ISR in CCS for MSP430 (MSP430FG5618). The necessary approach is as "naked" ISR in embedded GNU C. Could someone provide an idea?

TIA

Kristian

over 15 years ago

0 George Mock over 15 years ago

TI__Guru**** 253480 points

The TI MSP430 compiler does not support "naked" functions.

Thanks and regards,

-George

0 Deniz Can Cigsar over 11 years ago in reply to George Mock

Intellectual 720 points

Sorry for resurrection but does this statement still hold? MSP430 does not have separate stacks (thread/irq stacks) and it does not have software IRQ support. Because of that naked ISR would be nice for optimum OS development..

0 George Mock over 11 years ago in reply to Deniz Can Cigsar

TI__Guru**** 253480 points

The TI MSP430 compiler does not support the GCC function attribute naked. The GCC MSP430 compiler supports it.

Thanks and regards,

-George

0 Deniz Can Cigsar over 11 years ago in reply to George Mock

Intellectual 720 points

Thanks.. I solved it by moving ISR routine into .asm file and writing the contents by hand. This also answered my very past question on "the isr routines are forcibly linked" problem. If I put ISR into a assembly file, unless it is referred it is not linked..

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Epilog free "naked" ISR in CCS