I have downloaded the X-CUBE-SBSFU V2.4.0 and build project NUCLEO-G071RB. It works and can download firmware from Tera Term's ymodem send. Can we use only Tera Term? Do any other tools be used for download firmware?

[EEdwa.1]

Hi Arno,

I try to use your setting, but still failed.

My sb version is:

sb --ver

sb (lrzsz) 0.12.21rc

Could you share your sb version?

Thank you

[EEdwa.1]

Hi Jocelyn,

I have try to activate MINICOM_YMODEM flag, but failed.

The error logs are the following,

Could you help how to solve the problem?

= [SBOOT] System Security Check successfully passed. Starting...
 
 
======================================================================
=              (C) COPYRIGHT 2017 STMicroelectronics                 =
=                                                                    =
=              Secure Boot and Secure Firmware Update                =
======================================================================
 
 
= [SBOOT] SECURE ENGINE INITIALIZATION SUCCESSFUL
= [SBOOT] STATE: CHECK STATUS ON RESET
          INFO: A Reboot has been triggered by a Software reset!
          INFO: Last execution detected error was: FW too big.
= [SBOOT] STATE: CHECK NEW FIRMWARE TO DOWNLOAD
= [SBOOT] STATE: CHECK USER FW STATUS
          No valid FW found in the active slots nor new FW to be installed
          Waiting for the local download to start... 
= [SBOOT] STATE: DOWNLOAD NEW USER FIRMWARE
          File> Transfer> YMODEM> Send CCCCCCCCCCCCCCCCCCCCC

[Arno1]

mine's the same: sb (lrzsz) 0.12.21rc

Your output says `INFO: Last execution detected error was: FW too big.`

Have you changed anything to the userapp?

[EEdwa.1]

No, I don't change anything to the userapp.

I have try the below settings, but both failed.

1. If I activate MINICOM_YMODEM flag, I must use setting "/usr/bin/sb -vv", then will start download.
2. If I deactivate MINICOM_YMODEM flag, I must use setting "/usr/bin/sb -vv -k", then will start download.

[Jocelyn RICARD]

Hi EEDwa,

are you using SBSFU 2.4.0 version?

I remember, but not 100% sure, that this FW too big was a "bad" error code in previous SBSFU version.

Also, the support of MINICOM came with the 2.4.0

Best regards

Jocelyn

[EEdwa.1]

Hi Jocelyn,

Yes, I use SBSFU 2.4.0.

But still failed even if I activate MINICOM_YMODEM flag.

[Jocelyn RICARD]

Hi EEdwa,

could you please tell in which environment you are working?

I could try to reproduce your issue on a virtual machine.

Best regards

Jocelyn

[EEdwa.1]

Hi Jocelyn,

My OS is Ubuntu 16.04.7 LTS

Thank you.

[Jocelyn RICARD]

Hi EEDwa,

I could reproduce your issue after installing this version on a virtual machine.

I'll try to understand what happens.

I used a STM32L476 as example.

Behaviour is actually different between SBSFU loader and application loader.

On SBSFU loader, using -k (for 1kbytes download) fails immediately. Removing -k, it starts transfering very slowly 1 sector of 128 B/sec and fails at the end.

Using application side loader, the transfer is occuring quite fast then stops and send 2or 3 more sectors before failing.

I suspect issues related to timeout.

Best regards

Jocelyn