Author Topic: Unexpected Disappointment with an ESU Decoder  (Read 1163 times)

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davefoxx

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Re: Unexpected Disappointment with an ESU Decoder
« Reply #30 on: April 02, 2019, 06:13:06 PM »
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I didn't mean using the lokProgrammer.  As a nerd, I meant using something like a Segger JTAG/SWD programmer to suck the code out of a V5 and blast it into the other decoder.  This would require someone like Peteski to solder the SWD connections to the ARM chip.

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Oh, sorry, that's way above my pay grade.

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peteski

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Re: Unexpected Disappointment with an ESU Decoder
« Reply #31 on: April 02, 2019, 07:14:34 PM »
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I didn't mean using the lokProgrammer.  As a nerd, I meant using something like a Segger JTAG/SWD programmer to suck the code out of a V5 and blast it into the other decoder.  This would require someone like Peteski to solder the SWD connections to the ARM chip.

-Dave

Don't microcontrllers feature lockout so the internal code cannot be read  and/or re-blasted?
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reinhardtjh

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Re: Unexpected Disappointment with an ESU Decoder
« Reply #32 on: April 02, 2019, 08:44:27 PM »
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Don't microcontrllers feature lockout so the internal code cannot be read  and/or re-blasted?

Often, yes.  I don't know about these particular ones but I wouldn't bet against it.

Could be a new hobby.. hacking decoders to upgrade the firmware.  :trollface:  Although the returns would be limited.  With the V5, the Select is going away so there won't be any to upgrade there and the "Essential Sound Unit" is not available to the public - only to OEM's like Walthers and Scaletrains so you'd have to become a manufacturer in order to get them and if they then ended up on the black market I'm sure ESU would come down hard on you.
« Last Edit: April 02, 2019, 08:47:33 PM by reinhardtjh »
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railnerd

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Re: Unexpected Disappointment with an ESU Decoder
« Reply #33 on: April 03, 2019, 12:20:34 AM »
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Don't microcontrllers feature lockout so the internal code cannot be read  and/or re-blasted?

my security friends note that very few hardware companies lock their firmware...

-Dave