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Start from Project from scratch Problems

Gary Olson

I am having trouble taking the IAP example project written for the MCB2100 (LPC2129)
and moving it to the MCB2300 (LPC2378). My procedure was to create a new project
targeting the LPC2378 which gives me the LPC2378.s file. Then I added the IAP.c file used
in the example. Modified the include file declaration of the IAP.c file to

#include <LPC23xx.H>

Then I tried to compile the project but it does not recognize the VIC register:

VICDefVectAddr = (unsigned int) def_isr; // for Spurious Interrupts

This is the error:

IAP.C(206): error: #20: identifier "VICDefVectAddr" is undefined VICDefVectAddr = (unsigned int) def_isr; // for Spurious Interrupts
IAP.C: 0 warnings, 1 error

Thanks

Parents Reply Children
  • 0 in reply to Gary Olson

    I don't think the LPC23xx need any "spurious interrupt" handling. Spurious interrupts is another way of saying that the chip integration is broken and suffering from timing issues.

    One important thing to remember when moving between LPC21xx and LPC23xx is that one of the chips gets prio from VIC index and maps function with a register/index. The other has hard-coded function and uses the register to define priority. And I think Keil's register naming is wrong for the LPC23xx (it probably took them a while to notice that change between the two VIC) so the register name implies that you specify what hardware the VIC channel should handle when in reality the register controls the priority.

    By the way - how is this thread generic and not related to the ARM architecture???

  • 0 in reply to edPer Westermark

    Hi, At the time I started this thread, I did not know that the VICs would be different between the
    LPCs. I am just starting to learn the tools and chips so I thought maybe my procedure creating a
    project from scratch was causing this error.

    Thanks for the information.