TMS570LC4357: TMS570LC43x HDK GIO Interrupt read external Rising edge using Halcogen

Hi Lukman,

You did the first step for triggering the interring with the falling edge:

2nd step is to enable the VIM channel for GIO High (high priority is selected in your configuration):

You will see the GIO ISR is generated in gio.c.

Since the IRQ is selected, please enable the IRQ interrupt in your code:

/* Enable CPU Interrupts */
_enable_IRQ();

Hi QJ,

Thanks for the reply, after I enable the _enable_IRQ(), which address I should look into to check the event triggering?

And do I need to do clearing those address as well after the event triggering?

Because I saw this interrupt in gio.c

void gioHighLevelInterrupt(void)
{
   uint32 offset = gioREG->OFF1;

   if (offset != 0U)
   {
       pin_bit= 1;
       offset = offset - 1U;
       if (offset >= 8U)
       {
          gioNotification(gioPORTB, offset - 8U);
       }
      else
       {
          gioNotification(gioPORTA, offset);
       }
    }
   else
   {
      pin_bit=0;
   }

}

But when I check the offset variable, it never changed or triggered.

Or I can just use gioGetBit(gioPORTA, 2); ?

Please kindly advise.

I appreciate your reply.

Thanks & Regards,

Lukman