• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 82 subscribers
  • Views 472 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

"#20 identifier is undefined" message. This doesn't happen with another identical declaration

GEOFF JACKSON
Expert 1535 points


I expect there's a simple answer to this, but I can't work it out.

I have an SPI interrupt routine (spiArxFifoISR) in the proj_lab13b_test.c file, and in the hal.h file I added "pie->SPIRXINTA = &spiArxFifoISR;" to the HAL_initIntVectorTable function. 

All of that compiles fine and works. Then I added another interrupt (ECAN0_ISR ) for ECAN into proj_lab13b_test.c, and added a line "pie->ECANAINT0 = &ECAN0_ISR " to the HAL_initIntVectorTable function.

This time the compiler reports an error "#20 identifier ECAN0_ISR is undefined"

I'm guessing there must be some declaration that I've missed out somewhere; I've used the CCS search to find an equivalent declaration for the SPI , but it finds nothing. Tried declaring ECAN0_ISR as extern in hal,h but the compiler just reports it as being defined twice.

What am I doing wrong ?

Thanks