ISR assigned to same interrupt vector

Ed Lombardo

Other Parts Discussed in Thread: MSP430F5529, CC1100

Hi,

I am new to CCS and MSP430. I copied CC1100 example code to MSP430F5529 User Experience source code. The project compiles cleanly, but the linker complains about "program will not fit into available memory. placement with alignment fails for section ".int42" size 0x4.

Available memory ranges:

INT42 size:0x2 unused: 0x2 max hole: 0x2

I checked the map file and it shows:

.int42 0 00000000 00000004 FAILED TO ALLOCATE
.int47 0 00000000 00000004 FAILED TO ALLOCATE

How do I easily find two ISRs assigned to same interrupt vector?

Regards,

over 13 years ago

0 Jens-Michael Gross over 13 years ago

Guru 227245 points

Ed Lombardo said:
How do I easily find two ISRs assigned to same interrupt vector?

Make a text search for the pragma that assigns the vector to the following function.

Either your code indeed has two interrupt functions for the same vector, or your interrupt function is placed above 64k, resulting in a 20/32 bit address which of course won't fit into a 16 bit vector location.

0 Ed Lombardo over 13 years ago in reply to Jens-Michael Gross

Expert 1070 points

Hi,

I found two #pragma vector instances from MSP430 User Experience project and C1100 project.

Thanks

0 old_cow_yellow over 13 years ago in reply to Ed Lombardo

Guru 58965 points

But are both instances for INT42?

Or, is one for INT42 and the other for INT47?

**Attention** This is a public forum

MSP low-power microcontrollers

MSP low-power microcontroller forum

ISR assigned to same interrupt vector