Author Topic: Syntherrupter - Help and Issues  (Read 287 times)

Offline tronic

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Syntherrupter - Help and Issues
« on: October 13, 2021, 10:54:37 AM »
Unfortunately, I am having great problems rebuilding the great project
and would be happy if someone finds the error

Bought new : EK-TM4C1294XL
Bought new : NEXTION NX8048T050-011

Connected
 red +
black -
yellow PA5
blue PA4

Step 1 :
Download "Syntherrupter_Firmwares_v4.2.0-beta.7.zip".
unzip
LM Flash Programmer installed under Windows 10
Quickset TM4C1294XL Launchpad
Program Syntherrupter_Tiva_1_Coil.bin

-> programming & verifying complete-passed

Step 2
File "Syntherrupter_Nextion_NX8048T050_011.tft on Mico-SD".
Insert SD card into display and switch on
Display performs update, message successful

power off

Nothing, display remains dark
« Last Edit: October 13, 2021, 11:26:16 AM by tronic »

Offline Max

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Re: Syntherrupter - Help and Issues
« Reply #1 on: October 13, 2021, 02:04:02 PM »
Hello tronic and welcome to the forum!


Sorry to hear that your Syntherrupter doesn't work and thank you for the detailed report. Unfortunately I cannot reproduce the issue here. If I flash the files the device powers up fine. Assuming it's not a hardware issue there's only one difference between your setup and mine; your device is all new; meaning its EEPROM does not contain any settings. I'll have a look at that - though I don't think that's the origin of your issues.
Other than that it might be a power supply issue but it seems somewhat unlikely, too...

Couple questions for further debugging:
Do you have a scope?
Any way to decode serial data (to check the coms between the screen and the microcontroller)?
Do you feel comfortable using a tool like Syfoh?


I hope we get this fixed soon!
Max

Offline tronic

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Re: Syntherrupter - Help and Issues
« Reply #2 on: October 13, 2021, 02:17:41 PM »
Thank you very much for your support.
Yes, oscillator with serial coding is available, but no signal comes out of the TX PIN.

Offline Max

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Re: Syntherrupter - Help and Issues
« Reply #3 on: October 13, 2021, 02:22:54 PM »
If you want, we can continue this dialog via PM or any chat platform instead of "spamming" this topic. I'll afterwards report here what the solution was. If you agree, let me know the contact details via PM.
That aside, "TX PIN" is unfortunately unclear... Do you mean tiva's TX pin or Nextion's?

Kind regards,
Max

Offline Max

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Re: Syntherrupter - Help and Issues
« Reply #4 on: October 19, 2021, 11:36:44 PM »
The issue was a bug in the v4.2.0-beta.3 - v4.2.0-beta.7 firmware versions. It has been fixed with the v4.2.0 (stable) release. Unfortunately this is likely not the fix for Mathieu's issue...

Kind regards,
Max

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Re: Syntherrupter - Help and Issues
« Reply #4 on: October 19, 2021, 11:36:44 PM »

 


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