RTICOMPxCLR register is not increased

Vitaliy Bortsov

Hello.

I want to use RTI Compare 0 interrupt to trigger ADC in RM46L852PGE chip, without generating RTI interrupts.

Is it possible?

I found that RTICOMP0CLR register is not increased and interrupt flag is not cleared.

        /** - Setup compare 0 value. This value is compared with selected free running counter. */
        rtiREG1->CMP[0U].COMPx = 1000U;
        rtiREG1->CMP[0U].UDCPx = 1000U;
        rtiREG1->COMP0CLR = 1500U;

Such simple code lead to correct work RTI Compare 0 module except of interrupt flag setting and not clearing. Register COMP0CLR is not increased.

Why?

Regards,

Vitaliy Bortsov

over 10 years ago

0 Sunil Oak over 10 years ago

TI__Mastermind 49120 points

Vitaly,

Have you enabled the auto-clear functionality for RTI compare 0? You need to write rtiREG1->INTCLRENABLE = 0x5 to enable the auto-clear for RTI Comp 0.

Regards,
Sunil

0 Vitaliy Bortsov over 10 years ago in reply to Sunil Oak

Intellectual 340 points

Dear Sunil,

Thank you.

All work with rtiREG1->INTCLRENABLE = 0x05050500;

It is unclear from documentation "what I need to do to use RTI Compare 0 interrupt as trigger source for peripheral". Can you make inquiry to TI team to improve documentation?

Regards,

Vitaliy Bortsov

0 Sunil Oak over 10 years ago in reply to Vitaliy Bortsov

TI__Mastermind 49120 points

Hi Vitaly,

We appreciate your feedback, and will try to improve the description of this feature in a future update to the TRM.

Regards,
Sunil

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RTICOMPxCLR register is not increased