MCU-PLUS-SDK-AM263X: Not able to build sbl_qspi that works in UniFlash

Daniel Brown

Part Number: MCU-PLUS-SDK-AM263X
Other Parts Discussed in Thread: TMDSCNCD263, UNIFLASH

I am trying to get the secondary bootloader for qspi to work for our own board, and since that hasn't worked yet, I tried to see what happens when I build the sbl_qspi example for the TMDSCNCD263 control card.

Imported the sbl_qspi example and built it without changing anything.
Opened UniFlash (version 8.6.0), used the .tiimage file from sbl_qspi as the SBL image.
Built an example of gpio_led_blink as the Application Image
Loaded images onto the control card.
Power cycled and nothing happened.

However, if I use the pre-built sbl_qspi, then after I load the images and power cycle, the LED blinks as expected. Why?

over 1 year ago

0 Aakash Kedia over 1 year ago

TI__Mastermind 26145 points

Hi Daniel Brown,

My first guess is because you are using OpenSSL 3.x which is not supported by SDK 09.01 release. The support for OpenSSL 3.x is added from SDK 09.02 onwards.

This is mentioned here in the SDK documentation - https://software-dl.ti.com/mcu-plus-sdk/esd/AM263X/latest/exports/docs/api_guide_am263x/SDK_DOWNLOAD_PAGE.html#INSTALL_OPENSSL

Best Regards,
Aakash

0 Daniel Brown over 1 year ago in reply to Aakash Kedia

Prodigy 145 points

I hope so. But I have my doubts.

1. SDK downloads do not show 9.02: MCU-PLUS-SDK-AM263X Software development kit (SDK) | TI.com

2. It runs the application for LED_Blink just fine without any input on my part as long as I use the pre-built bootloader.

3. I have both OpenSSL 1.1.1. and OpenSSL 3.x installed.

4. I tried to sign the file from a command window and it didn't work. (Should I sign the .out file instead of the .tiimage file?)

0 Daniel Brown over 1 year ago in reply to Daniel Brown

Prodigy 145 points

4a: I successfully created a signed file, but it didn't operate as a bootloader successfully.

0 Daniel Brown over 1 year ago in reply to Aakash Kedia

Prodigy 145 points

Do you have a download link for SDK 9.02?

+1 Aakash Kedia over 1 year ago in reply to Daniel Brown

TI__Mastermind 26145 points

Hi Daniel Brown,

Daniel Brown said:
Do you have a download link for SDK 9.02?

SDK 09.02 is not released yet. It scheduled to be there by 7th May 2024. There are some RC drops on GitHub if you require them before the intended timelines - https://github.com/TexasInstruments/mcupsdk-core

Daniel Brown said:
I have both OpenSSL 1.1.1. and OpenSSL 3.x installed.

Can you make sure the OpenSSL used is 1.1.1 for 09.01 release ?

How : Uninstall 3.x or ensure OpenSSL via command line gives you OpenSSL 1.1.1

I hope this helps ?

Best Regards,
Aakash

0 Daniel Brown over 1 year ago in reply to Aakash Kedia

Prodigy 145 points

It does work after I uninstall OpenSSL 3.x and re-install OpenSSL 1.1.1.

Arm-based microcontrollers

Arm-based microcontrollers forum

MCU-PLUS-SDK-AM263X: Not able to build sbl_qspi that works in UniFlash