Couldn't enter interrupt handler routine

Hi,

What is the HW you are using?.

How you are registering your isr?

Pratap

Hi Pratap,

My HW is EVM with TMS320C5515.I linked to my project vector.asm file.

Where DMA interrupt related strings are the following.

******

.global _DMA_Isr 

******

DMA: .ivec    _DMA_Isr                ; DMA Interrupt

******

And in a C source file I called interrupt routine 

interrupt void DMA_Isr(void){}

What else should I do to regist interrupt?

Thanks!

Max

Hi Max,

Are using CSL?. If not you can download it from http://focus.ti.com/docs/toolsw/folders/print/sprc133.html. You need to download 'C55XCSL-LOWPOWER' version.

CSL is having 'intc' module using which you can configure the interrupts and register your ISR.

You can refer to dma example2 to see how the DMA interrupts are configured.

Pratap.

Hi Pratap,

Thank you for your advice. 

But could I do it without using chip support library?

In my project I also use dsplib and using these libraries together I get redeclaration data types error. 

Max

Okay,

Then check whether you are configuring the IVPD and IVPH registers with your vector start address or not.

Pratap

Hmm,

These two files are dark side of TMS programming for me.

How should I handle them in CCS project? How to check whether I correctly configured them or not? 

Thanks for help.

Max

Hi Max,

Select menu 'View->Registers->CPU Registers. You can see the value configured in IVPD and IVPH registers

Pratap.