STLink Ninebot Max ESC: Difference between revisions

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In the case of a bricked ESC/Controller/Control Board, STLinking can save the controller from needing to be replaced in some instances.
In the case of a bricked ESC/Controller/Control Board, STLinking can save the controller from needing to be replaced in some instances.


For this process you will need:
{{ STLink Materials List }}


* Windows computer
For the Ninebot ESX Series/[[Ninebot SNSC 1.0|SNSC 1.0]], use the guide at: [[STLink Ninebot ESX ESC]].


* STLink (Decent quality clones will work)
==Identify Which ESC Generation You Have==


* Tools to disassemble the scooter and access the ESC
Check out the difference between the [[Ninebot Max ESC Generations]] and use the steps below depending on which one you have.


* Dupont male/female jumper cables
There are 3 different board layouts.


This process can be dangerous if done incorrectly so take caution when performing these steps and make sure you use a computer you are comfortable possibly destroying.
<div><ul>
<li style="display: inline-block;">[[File:NinebotMaxGen1ESC.jpg|link=STLink Ninebot Max Gen 1 ESC|thumb|center|400px|A Gen 1 ESC has bullet connectors and a silver metallic housing. Newer units may have writing as shown in this image.]]</li>
<li style="display: inline-block;">[[File:NinebotMaxGen1G30DESC.jpg|link=STLink Ninebot Max Gen 1 G30D ESC|thumb|center|400px|A Gen 1 ESC has bullet connectors and a silver metallic housing. The G30D has 3 capacitors and a different location for the debug pins.]]</li>
<li style="display: inline-block;">[[File:NinebotMaxGen2ESC.jpg|link=STLink Ninebot Max Gen 2 ESC|thumb|center|400px|A Gen 2 ESC has screw terminals and a black plastic housing. These versions are based on the AT32 MCU rather than the STM32.]]</li>
</ul></div>


If you short a battery line you could end up blowing up your STLink, Computer, and more or even causing a fire.
Click the image above to go to the guide that corresponds to your model.


==Accessing the Debug Pins==
[[Category: Scooters]][[Category: Ninebot]][[Category: Max]][[Category: STLink]]
 
===Accessing the ESC===
 
Start by removing the 18 Security Torx T-15 screws on the bottom.
 
[[File: NinebotMaxBottomScrewLocations.jpg|thumb|center|400px|The locations of the 18 screws.]]
 
Using an M4 Allen/Hex wrench or bit, remove the two screws holding the ESC in place.
 
[[File: NinebotMaxESCLocations.jpg|thumb|center|400px|The ESC after being removed.]]
 
Carefully unplug each of the connectors.
 
You may need to scrape more rubber potting compound away from some of the connectors in order to unplug them.
 
===Accessing The Pins===
 
Carefully scrape away the potting compound, making sure not to remove any of the small surface mount components.
 
[[File: NinebotMaxDebugPins.jpg|thumb|center|400px|Be very careful not to damage any of the smaller SMD components.]]
 
==Software==
 
Download [https://www.st.com/content/st_com/en/products/development-tools/software-development-tools/stm32-software-development-tools/stm32-programmers/stsw-link004.html#get-software STM32 STLink Utility] from the ST website.
 
Scroll down and click "Get Software" and enter your email to receive a download link.
 
Install it and open it.
 
==Flashing==
 
Connect the STLink to the ESC according to the diagram below.
 
The BMS port red and black wires can also be connected to provide power instead of using the BMS connector and ground point.
 
[[File:NinebotMaxESCSTLinkPinout.jpg|center|thumb|400px]]
 
*Open STM32 ST-Link utility and connect to the ESC using the plug at the top
 
*Press Target->Connect from the top menu
 
[[File:StLinkUtilityNinebotMax.png|thumb|center|400px|No error messages about "Unable to connect to target" should display.]]
 
*Press "Open File" and open [[File:NinebotMAX FULLESC126.bin]].
 
[[File:StLinkUtilityNinebotMaxESCProgram.png|thumb|center|400px|At this point a red LED should light up on the board.]]
 
*From the top menu, press Target->Program & verify or ctrl+p.
 
[[Category: Scooters]][[Category: Ninebot]][[Category: Max]]

Latest revision as of 19:53, 17 September 2023

In the case of a bricked ESC/Controller/Control Board, STLinking can save the controller from needing to be replaced in some instances.

For this process, you will need:

  • Windows computer
  • STLink (Decent quality clones will work)
  • Tools to disassemble the scooter and access the parts
  • Dupont male/female jumper cables

This process can be dangerous if done incorrectly so take caution when performing these steps and make sure you use a computer you are comfortable possibly destroying.

If you short a battery line you could end up blowing up your STLink, Computer, and more or even causing a fire.

For the Ninebot ESX Series/SNSC 1.0, use the guide at: STLink Ninebot ESX ESC.

Identify Which ESC Generation You Have

Check out the difference between the Ninebot Max ESC Generations and use the steps below depending on which one you have.

There are 3 different board layouts.

  • A Gen 1 ESC has bullet connectors and a silver metallic housing. Newer units may have writing as shown in this image.
  • A Gen 1 ESC has bullet connectors and a silver metallic housing. The G30D has 3 capacitors and a different location for the debug pins.
  • A Gen 2 ESC has screw terminals and a black plastic housing. These versions are based on the AT32 MCU rather than the STM32.

Click the image above to go to the guide that corresponds to your model.

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