2305172_en-US

[#1]

Unable to get Xtensa ISS license for HiFi4 DSP on i.MX 8M Plus

Hello everyone,

I am encountering a critical license error when trying to use the Xtensa Instruction Set Simulator (ISS) for HiFi4 DSP development on the i.MX 8M Plus platform. I would greatly appreciate any insights or guidance from the community.

1. The Error:
When launching or debugging within the Xtensa IDE/Xplorer, the process fails with the following error:

text

*ERROR* Unable to get license(cexit exit requested from context '[ hifi4_mscale_v2_0_2_prod ] Xtensa ISS' ( rc = -1 ))
*WARNING* fatal error(s) caught ( rc = -1 )

This prevents me from using the ISS for simulation and debugging.

2. My Development Environment:

• Target Chip: NXP i.MX 8M Plus (with Cadence HiFi4 DSP core).

• Xtensa Core: hifi4_mscale_v2_0_2_prod.

• Tool: Xtensa IDE / Xplorer (V10.1.11).

• Operating System: ( Windows 10).

3. What I Have Already Checked/Tried:
To rule out common issues, I have verified:

• License Server: The FlexLM/LMGRD license server is running and accessible from my machine.

• License File: The license file contains a valid INCREMENT line for the Xtensa_ISS feature (or a similarly named feature) and has not expired.

• Environment Variables: I have set the correct license path environment variables (XTENSA_LICENSE_FILE, LM_LICENSE_FILE, etc.), pointing to the server (e.g., 27000@server_hostname).

Despite these checks, the error persists. The return code rc = -1 seems to indicate a specific denial from the license server for this particular core/context.

4. My Specific Questions:

• Has anyone successfully set up the Xtensa ISS for the HiFi4 DSP (hifi4_mscale_v2_0_2_prod) on the i.MX 8M Plus platform?

• Are there any known specific configuration steps, environment variables, or license feature names required for this combination?

• Could there be a mismatch between the core configuration and the licensed features?

Any advice on troubleshooting steps, correct license feature names, or configuration details would be extremely helpful. Thank you in advance for your support!

Best regards,

Re: Unable to get Xtensa ISS license for HiFi4 DSP on i.MX 8M PlusSure, I have already installed the certificate. It seems to be a tricky question. Thank you for your reminder！Re: Unable to get Xtensa ISS license for HiFi4 DSP on i.MX 8M Plus

I wonder if installing a local license works for you?

Go to https://tensilicatools.com/download/i-mx-8-hifi-4-sdk/ and Click on the link at the bottom of the page named 'Click to get a license key for imx8mplus sdk'.

Otherwise, I think you need to contact Cadence support.