not getting interrupts

Hongfeng Wang

the code used to be working fine compiled with CCS3.1, not I have just moved the project to CCS6.1, most of the code is working fine, except the hardware interrupts.

in my main program I set it up like this:

IRQ_enable(IRQ_EVT_EXTINT4);
IRQ_globalEnable();

but later in one task IRQ_test(IRQ_EVT_EXTINT4) always returns zero, and the HWI ISRis never called.

The chip I am using is DM642. DSP/BIOS version 5.24, CSL version 2.31

over 8 years ago

0 Titusrathinaraj Stalin over 8 years ago

TI__Guru** 116100 points

Hi Wang,
Able to load and run the CCSv3 compiled code (.out) on CCSv6 ?

the code used to be working fine compiled with CCS3.1, not I have just moved the project to CCS6.1, most of the code is working fine, except the hardware interrupts.

Did you modify the source code and CCS build settings to build it on CCSv6 ?
Or simply imported the project as "Import Legacy CCSv3.3 projects" on CCSv6 ?

0 Hongfeng Wang over 8 years ago in reply to Titusrathinaraj Stalin

Genius 3925 points

I am struggling to connect to the board using xds100v2, so I can not use emulator yet.

I have not done any change after importing the legacy project, other that fixing library and include path etc.
It compiles successfully and is loaded to target. it mostly works fine, including network stack.

0 Hongfeng Wang over 8 years ago in reply to Hongfeng Wang

Genius 3925 points

I found the problem:
I added these lines, which appears to break the interrupt function:
I don't understand exactly why though.

if(!IRQ_test(IRQ_EVT_EXTINT4))
{
IRQ_enable(IRQ_EVT_EXTINT4);
}

0 Arvind Singh over 8 years ago in reply to Hongfeng Wang

Mastermind 6115 points

Hi,

Glad to hear you are able to resolve issue by yourself.
Thanks for the update.

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not getting interrupts