CC3220SF-LAUNCHXL: local OTA fail due to signature file is missing in TAR (after progress reached to 99%)

Jasmin Mamtora

Part Number: CC3220SF-LAUNCHXL
Other Parts Discussed in Thread: UNIFLASH

Hi,

I am working on local OTA and everything looks ok but at the end of local OTA reached upto 99% and it fails due to signature file is missing in TAR.

I am using uniflash version 1.0.22.3

Please refer attached image1 for the userFiles structure and image2 for the error screenshot which comes at last.

Please suggest.

Thanks and Regards,

Jasmin

over 2 years ago

0 Kobi Leibovitch over 2 years ago

TI__Guru 61436 points

This is strange.

Have you skipped security when upon creating the OTA image? (you shouldn't)

Please open the tar file and make sure you can find "0/ota.sign".

br,

Kobi

0 Jasmin Mamtora over 2 years ago in reply to Kobi Leibovitch

Intellectual 460 points

Hi Kobi,

Thanks for your reply.

The "0/ota.sign" is not available in my case.

I have attached the screenshot, while creating the OTA TAR which OTA private key file we have to select?(for dummy) and certificate catalog OTA bundle only check box required?

Please suggest.

Thanks and Regards,

Jasmin

0 Kobi Leibovitch over 2 years ago in reply to Jasmin Mamtora

TI__Guru 61436 points

Hi,

For development, you can use the dummy root dummy_ota_vendor_key.der (see under <SDK-INSTALL-DIR>\tools\cc32xx_tools\ota-example-cert). In such case you'll need to have the dummy_ota_vendor_cert.der in the root folder of the device file system (this will be used to verify the signature) before the OTA (i.e. when you program the device).

For production, you should replace the key pair with your own self signed certificates.

"Certificate catalog OTA bundle only" check box should NOT be checked (this should be used only when you are replacing the certificate catalog - which requires a dedicated update.

See more details in the following docs:

<SDK-INSTALL-DIR>/docs/simplelink_mcu_sdk/Over_The_Air_Update_Guide.html

and

https://www.ti.com/lit/pdf/swpu332 (see chapter 4).

Br,

Kobi

+1 Jasmin Mamtora over 2 years ago in reply to Kobi Leibovitch

Intellectual 460 points

Hi Kobi,

Thanks, the problem is resolved.

Regards,

Jasmin

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CC3220SF-LAUNCHXL: local OTA fail due to signature file is missing in TAR (after progress reached to 99%)