Endless Sphere

there is a prototype

viewtopic.php?f=2&t=113925

regards
stancecoke

yes, there are no precompiled libraries any more, so the code is better understandable and now even editable!
But to be honest, I've not tried to understand what happens where so far . I just compiled and tested @netzpfuschers code on my testbench...

regards
stancecoke

How are you doing motor auto setup? @netzpfuscher is the main developer on the v2 project. He copied the routines from the VESC mainly. See his commits from Nov.11 and the days before: https://github.com/Koxx3/SmartESC_STM32_v2/commits/vesc_comp But I found the sensorless startup was complete shit ...

and of course the many commercially integratable examples (ST, TI, Infineon,) we are working on a firmware for the cheap and popular M365 and G30 scooter controllers. It implements the ST Motor Control Workbench FOC-code and uses the VESC-Tool for configuring, autotuning and realtime data plotting....

I made an analysis of the UART communication some time ago: https://www.pedelecforum.de/forum/index.php?threads/brainpower-motor-controller-250w-mit-s866-display-versuch-einer-funktionsanalyse.89310/post-1705760 regards stancecoke https://www.pedelecforum.de/forum/index.php?attachments/1625916511715...

Fluctuator wrote: ↑

Nov 06 2021 12:26pm

Can this idea be done within one Lishui stm32f103c8 controller with 3 low side shunt resistors?

No, the Lishui project works in FOC commutation. The 'trick' with the BEMF on the floating phase only works with 6 step commutation.

regards
stancecoke

can I ask the advantage over using CAv3? ?! This is just the sensor. You'll need something like the CA to process the data from the sensor. Justin has several bottom bracket sensors in his shop , but nothing for Hollowtech . ISIS is quite exotic and square taper is very old fashioned and heavy... r...

brazilianboy wrote: ↑

Nov 01 2021 2:28pm

Are you putting for sale anytime soon?

No, it's just hobby for me
But perhaps a Chinese company will pick up the idea. I've published all necessary details

regards
stancecoke

This topic has been driving me around for a while. All commercially available bottom bracket torque sensors are for square taper or Isis cranks. Today's "standard" in the upper class, however, is Hollowtech II. Building on the v5 sensor , I worked with @arozhkov2001 to develop a sensor tha...

miklelv wrote: ↑

Oct 05 2021 12:43pm

I am trying to run on version 1.4

For hardware specific issues please ask in the Telegram chatgroup.
For the ESP32 interface, please be patient, I'll update it next week to work with the recent version of the controller firmware.

regards
stancecoke

miklelv wrote: ↑

Oct 05 2021 4:32am

How to disable it ?

https://github.com/Koxx3/SmartESC_STM32 ... nfig.h#L54
It is disabled by default, if you haven't activated it manually, there something different wrong.

regards
stancecoke

Disable the PLL first. If it runs with disabled PLL try to find the right shift factors for the PLL.

regards
stancecoke

miklelv wrote: ↑

Sep 30 2021 2:15pm

I also don't understand how to set the values

You can use an online converter like this:
https://www.rapidtables.com/convert/num ... o-hex.html

For example
-100 in dec is FF9C as hex, so LL = 9C and MM = FF
230 in dec is 00E6 as hex, so LL = E6 and MM = 00

regards
stancecoke

#include<stdio.h> int main() { int x[11]={0xAA,0x00,0x00,0x06,0x01, 0x00,0x00,0x00,0x00,0x00,0x00}; int chkSum = 0; for (int i = 0; i < 11; i++) { chkSum ^= x ; } printf("byte 12 = 0x%02X ", chkSum); } You can run this code to get the right checksum: https://onlinegdb.com/VIHGUEOwa Click o...

Ah, we have activated the checksum verification now, so you have to send the correct checksum in the last byte of the command. See here: https://github.com/Koxx3/SmartESC_STM32_v3/blob/01552b90df5a8644e4f39e972dbc0c106f38abb8/Core/Src/display_ebics.c#L136 We have to update the readme! Please ask in ...

If I change the #define DISPLAY_TYPE DISPLAY_TYPE_EBiCS Please let the display type at debug, as in the repo. https://github.com/Koxx3/SmartESC_STM32_v3/blob/01552b90df5a8644e4f39e972dbc0c106f38abb8/Core/Inc/config.h#L44 It's quite a long time ago, when I played around with the code :D Please join ...

How should I send the command 00 00 00 06 01 00 00 00 00 00 00 00 to the auto - detection of hall sensors ? You can send the command by any terminal program that allows to send hex data. E.g. HTerm Can you explain the auto KV detect?? After the motor angle autodetect, the controller increases iq sl...

any step by step mannual, example of setup available You can use the wiki of the original EBiCS repo for the meaning of the settings in the config.h. But you have to use the STM Cube IDE for compiling and flashing. Please use this thread for further questions: https://endless-sphere.com/forums/view...

it starts using the hall sensors No, the sensorless branch starts open loop and then switches to FOC. But it's no problem to do the startup from the hallsensors. But I see no advantage to use the observer, if you have working Hallsensors. We have the option to use a PLL for the rotorposition estima...

casainho wrote: ↑

Sep 23 2021 8:46am

I will look at the firmware

Great! Looking forward to hear your comments!

regards
stancecoke

what kind of suitable controller can be purchased on the market there is a page with some links in the wiki: https://github.com/EBiCS/EBiCS_Firmware/wiki/Where-to-buy-a-suitable-controller The 12FET can handle 25amps, I guess. I don't know, if you will find a cheaper offer at ali or ebay... regards...

can only work from the throttle stick without a torque sensor ? Yes, if you solder in an additional wire to the pad "SP" on the PCB. But it is configured for legal use in Europe, you have to pedal to activate the throttle. we have discussed that controller in detail in the german forum: h...

You have defined nothing for #define TEMP_CAL_A #define TEMP_CAL_B Just keep the values at their standard, even if you don't use them.... #define TEMP_CAL_A 1.6 #define TEMP_CAL_B 110.4 for "normal" PAS function choose ride mode "Torque-Simulation" "Throttle and PAS" me...

Any help with the gazelle branch error: strange, I get no error. Can you please post the content of your config.h regards stancecoke C:\temp\BMSBattery_S_controllers_firmware-Gazelle>make -f Makefile_windows sdcc -c -IStdPeriphLib/inc -I. -mstm8 --std-c99 --nolospre --out-fmt-ihx --debug -oStdPerip...

Valopallo wrote: ↑

Sep 10 2021 5:14am

Did not change anything. I tried the throttle only code once again and now it does not work either.

Sorry, then I can't help any more. I am at the end of my rope at this point.

regards
stancecoke