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Nimue

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Joined: 06/08/2020
Location: United Kingdom
Posts: 420

Posted: 09:41am 01 Sep 2020

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Good morning all.

Upfront - a huge thanks on behalf of the community for all the work that takes place in maintaining / bug squashing and generally improving the platform.

Diolch (Welsh for thanks).

My CMM2 is used as a prototype for use in education settings - ie to train teachers how to use hardware like this. As such, they are largely uninitiated (and often reluctant) users of technology like this.

As firmware is updated, I need the simplest possible process to update the CMM2 -- via a Windows platform. For the question (as I know much of this is in forum posts) --- what is the single, simplest way of updating the firmware -- and one that is "least" likely to go wrong?

Most users will never have tinkered with bioses, flashing and rom files etc -- so I will need to write a guide for them -- but need to know where is best to start.

Any pointers greatly received.

Bendigedig work (Welsh for wonderful)

Cheers
Nim

Entropy is not what it used to be

mclout999
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Joined: 05/07/2020
Location: United States
Posts: 490

Posted: 10:40am 01 Sep 2020

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The best way i5 in the manual and is already well documented and easy as hell. Get the STM32CubeProgrammer and preferably the A to A USB cable and use that method from the manual. The reason is that the A to A method is very fast. Look at the end of the manual it is all illustrated and very clear.

Nimue

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Joined: 06/08/2020
Location: United Kingdom
Posts: 420

Posted: 10:46am 01 Sep 2020

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Thank you.

I think my confusion stemmed from the "STM32CubeProgrammer" --> I thought this was a piece of hardware, not software.

RTFM (carefully) in my case.

Cheers

Entropy is not what it used to be

Sasquatch

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Joined: 08/05/2020
Location: United States
Posts: 377

Posted: 04:59pm 01 Sep 2020

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Hello Nimue,

It turns out that the Windows installation of STM32CubeProgrammer includes a command line interface version called STm32_programmer_cli. You can set up a batch file or script to automate most of the process.

For example:

Stm32_programmer_cli -c port=USB1 -w MMBasic5.05.05.bin 0x08000000 -v

will program the binary file into the CMM2 and verify that the information was successfully loaded. Note that you will first need to get the CPU into "System" mode by setting the jumper/switch or using the UPDATE FIRMWARE command to place the CMM2 into update mode.

It should be possible to put everything needed on a USB drive such that the process can be carried out on multiple systems from a portable device. I have tested the CLI version of the programmer but not with the software on a USB drive yet.

-Carl

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