Interrupt vector table differences

Eli Mordel

Expert 1155 points

Hi,

I've compiled and linked the mcu_plus_sdk_243x tcp server example with GCC.

I see the interrupt entry vector values:

When I compare to same example compiled and linked with CLANG I get:

I see that starting from address 0x20 there's a difference.

What can cause the difference ?

Is there an interrupts vector table somewhere in the code ?

Thanks,

Eli

0 Ming Wei over 1 year ago

Hi Eli,

My guess is that the difference is caused by the compiler and inker of two difference toolchains:

In HwiP_armv7r_vectors_nortos_asm.S, it shows the _vectors and the start addresses for each interrupt handlers:

If the _c_int00, ... HwiP_fiq_handler have different start addresses then the 0x20 - 0x40 will be different.

As long as the 0x20 - 0x40 matches the start addresses of _c_int00, ... HwiP_fiq_handler then it should be OK.

Best regards,

Ming

0 Eli Mordel over 1 year ago in reply to Ming Wei

Expert 1155 points

Hi Ming,

Is the contents of HwiP_armv7r_vectors_nortos_asm.S is automatically added to the linker file ?

If not - should I add it manually ?

Thanks,

Eli

0 Ming Wei over 1 year ago in reply to Eli Mordel

Hi Eli,

Yes. It is part of the DPL/HwiP and will be included into your application.

If you made change to it, make sure you rebuild the driver library:

gmake -s -f makefile.am243x drivers_r5f.ti-arm-clang

Best regards,

Ming

0 Eli Mordel over 1 year ago in reply to Ming Wei

Expert 1155 points

Thanks !

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