MSP430FR2355: About how to set interrup highest priority

shoizumi

Hi.

I am beginner to microcontroller programing using MSP430FR2355. Please explain me how to set P4 interruput highest priority.

I tried to try it with reference to the program below but I couldn't because I don't understand how to change 0xFF3F to set P4.

msp430fr235x_ICC_01.c (ti.com)

Thank you

over 3 years ago

0 Eason Zhou over 3 years ago

TI__Mastermind 40195 points

The interrupt priority is fixed. Can you tell me what you want to do? Change another GPIO for interrupt?

0 shoizumi over 3 years ago in reply to Eason Zhou

Prodigy 20 points

Thanks for your reply.

I want to change GPIO Port from 1 to 4 in sample program.

In sample program, Port1 interrupt is set to Highest priority and RTC interrupt is set to Medium priority.

I think priorities are changing (In datasheet of MSP430FR2355, Interrupt priority is RTC > Port1).

Please tell me why priorities are changing.

Thank you.

0 David Schultz over 3 years ago

Guru 26125 points

You need to read the chapter on the Interrupt Compare Controller in the User guide and also the details in the data sheet that tell you which ILSRx field corresponds to which device.

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MSP430FR2355: About how to set interrup highest priority