TMS470M HET As GIO

Ed Ly

Hi,

So I am using the TMS470M with a external Parallel ADC with 16 PINS. I have these 16 PINs connected to the HET PINs on the MCU.

Now From my understanding, can I not use interrupts on these pins? or is there some way around this?

Thanks,

over 12 years ago

0 John Hall over 12 years ago

TI__Genius 9015 points

Hello Edmund,

I have forwarded your question to the expert on this. He will get back to you on your question soon.

0 Sunil Oak over 12 years ago

TI__Mastermind 49120 points

Hi Edmund,

The NHET pins do not support the functionality implemented in the GIO pins to directly generate an interrupt on a level change on the associated pins. That said, you can write a NHET program that would look for a rising edge or falling edge on any number of NHET pins and then generate an interrupt to the CPU. You can do this with the ECNT instruction, for example.

Regards, Sunil

0 Ed Ly over 12 years ago in reply to Sunil Oak

Prodigy 50 points

Thanks Very much!

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TMS470M HET As GIO