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ADSP-21569 Recommended for New Designs
Reaching speeds of up to 1 GHz, the ADSP-2156x processors are members of the SHARC® family of products. The ADSP-2156x processor is based on the SHARC...
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ADSP-21569 on Analog.com

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FreeRTOS portENTER_CRITICAL

BernhardM

on Oct 27, 2025

Category: Software

Product Number: ADSP-21569

Software Version: CrossCore 3.0.3

Hi,

is it possible to disable just specific interrups in the portENTER_CRITICAL of FreeRTOS.

For example to not disable the System event controller interrupt, to ensure System Interrupts are not touched by the RTOS.

Regards

Bernhard

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Santhakumari

on Oct 28, 2025 9:06 AM
0
Hi Bernhard,

Thank you for your inquiry.

We are looking into this query now. We will get back to you soon.

Best Regards,
Santhakumari.V
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Santhakumari

on Oct 30, 2025 8:48 AM in reply to Santhakumari
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Hi Bernhard,

In FreeRTOS, the portENTER_CRITICAL function clears the IRPTEN bit in the Mode Control 1 Register, which disables global interrupts. We do not recommend modifying the OS source files, as it might create untested conflicts and affect system stability.

Best Regards,
Santhakumari.V
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Santhakumari

on Oct 30, 2025 8:48 AM in reply to Santhakumari
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Hi Bernhard,

In FreeRTOS, the portENTER_CRITICAL function clears the IRPTEN bit in the Mode Control 1 Register, which disables global interrupts. We do not recommend modifying the OS source files, as it might create untested conflicts and affect system stability.

Best Regards,
Santhakumari.V
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FreeRTOS portENTER_CRITICAL

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