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Weird serial output after flashing OSF to motor #158

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elpollodiablo opened this issue Jan 12, 2022 · 1 comment
Open

Weird serial output after flashing OSF to motor #158

elpollodiablo opened this issue Jan 12, 2022 · 1 comment

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@elpollodiablo
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elpollodiablo commented Jan 12, 2022 •
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Hey,

this is not a bug report, but a question :)

I'm using an ESP32 to read/write the serial of a TSDZ2 with OSF as part of some experimentation for a project. I'm using 9600 baud, and was able to read the incoming packets from the original firmware, including 0x43 start byte etc.

After that worked, I flashed the recommended opt data and OSF 1.1.1 according to instructions (with stmflash8 on Mac), and now this is the output I get on serial/motor tx after connecting the motor to battery (I'm printing bytes read in hex with a space in between, the "[nnnn] reset frame size" strings are debug messages) without having written anything to serial/motor rx from the ESP32 side:

8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 [7737] reset frame size
8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 [8806] reset frame size
A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 [9875] reset frame size
8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 88 8 A8 8 A8 8 A8 8 [10944] reset frame size
A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 [12013] reset frame size
8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 [13082] reset frame size
A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 [14150] reset frame size
8 A8 8 88 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 [15219] reset frame size
A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 88 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 [16288] reset frame size
8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 [17356] reset frame size
A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 [18425] reset frame size
8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 [19493] reset frame size
A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 [20563] reset frame size
8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 [21632] reset frame size
A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 [22700] reset frame size
8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 88 8 A8 8 A8 8 A8 8 A8 8 [23769] reset frame size
A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 [24838] reset frame size
8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 [25906] reset frame size
A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 88 [26975] reset frame size
8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 [28044] reset frame size
A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 [29113] reset frame size
8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 [30182] reset frame size
A8 8 A8 8 88 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 [31251] reset frame size
8 A8 8 A8 8 A8 8 A8 8 88 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 [32320] reset frame size
A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 A8 8 8 8 A8 [33388] reset frame size
8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 [34457] reset frame size
8 A8 8 8 8 A8 8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 [35526] reset frame size
8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 8 A8 8 [36595] reset frame size
8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 8 A8 8 8 8 A8 8 8 8 [37663] reset frame size
A8 8 8 8 A8 8 8 8 A8 8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 [38733] reset frame size
8 8 A8 8 8 8 A8 8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 [39801] reset frame size
A8 8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 8 A8 [40866] reset frame size

if I reboot the controller, it will again start the same pattern, that will change after a few seconds, so this is repeatable and consistent.

I know to support my experimentation is way beyond the scope of the devs here, but I thought it might not hurt to ask: did anyone experience something like this, or has an idea where I could look what's going wrong here? I've read the OSF source (specifically ebike_app.c), and I'm not finding anything that writes to serial that would do this.

While I haven't been able to use it yet, looking at the source this seems like an amazing project where a lot of effort went into it. I'm very impressed. Thanks for all your time, I hope I can be of some help in the future.
@elpollodiablo
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elpollodiablo commented Jan 16, 2022 •
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Irritatingly, I wasn't able to flash 1.0.0 or the original firmware until I made a cable with a RST connection, but now it works rather reliably :)

Sadly, the issue persists with the 1.1.1 firmware, and if I flash 1.0.0, I get a different, but similar output:

0 8 A8 8 8 8 8 8 8 8 8 8 8 8 8 8 A8 8 8 8 8 8 8 8 8 8 8 8 [14199] reset frame size
8 8 A8 8 8 8 8 8 8 8 8 8 8 8 8 8 A8 8 8 8 8 8 8 8 8 8 8 [15251] reset frame size
8 8 8 A8 8 8 8 8 8 8 8 8 8 8 8 8 8 A8 8 8 8 8 8 8 8 8 8 [16302] reset frame size
8 8 8 8 A8 8 8 8 8 8 8 8 8 8 8 8 8 8 A8 8 8 8 8 8 8 8 8 [17354] reset frame size
8 8 8 8 8 A8 8 8 8 8 8 8 8 8 8 8 8 8 8 A8 8 8 8 8 8 8 8 [18406] reset frame size
8 8 8 8 8 8 A8 8 8 8 8 8 8 8 8 8 8 8 8 8 A8 8 8 8 8 8 8 [19458] reset frame size
8 8 8 8 8 8 8 A8 8 8 8 8 8 8 8 8 8 8 8 8 8 A8 8 8 8 8 8 [20509] reset frame size
8 8 8 8 8 8 8 8 A8 8 8 8 8 8 8 8 8 8 8 8 8 8 A8 8 8 8 8 [21561] reset frame size
8 8 8 8 8 8 8 8 8 A8 8 8 8 8 8 8 8 8 8 8 8 8 8 A8 8 8 8 [22613] reset frame size
8 8 8 8 8 8 8 8 8 8 A8 8 8 8 8 8 8 8 8 8 8 8 8 8 A8 8 8 [23665] reset frame size
8 8 8 8 8 8 8 8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 [24717] reset frame size
A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 [25769] reset frame size
8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 8 8 A8 8 [26820] reset frame size
8 A8 A8 8 8 8 A8 8 8 8 A8 8 8 A8 A8 8 8 A8 A8 8 8 A8 A8 8 8 8 A8 [27872] reset frame size
8 8 8 A8 8 8 A8 A8 8 8 A8 A8 8 8 A8 A8 8 8 A8 A8 8 8 A8 A8 8 8 A8 [28924] reset frame size
A8 8 8 A8 A8 8 8 A8 A8 8 8 A8 A8 8 8 A8 A8 8 8 A8 A8 8 8 A8 A8 8 8 [29976] reset frame size

I'll now be investigating if this might be an issue that stems from using stm8flash instead of the windows app.

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