Endless Sphere

Nothing attached?
I have to check the phase current limiting algorithm I think...
regards
stancecoke

I now have a further problem. The throttle response in the recent downloads (I was using torque sim/throttle, offroad mode) has been very sharp when used from a standstill with little progression. This, unfortunately, has just damaged the controller. Hmm, strange. The only thing I changed in the la...

On TSDZ2 firmware (like on KT firmware), when motor is stopped the wheel/motor is engaged because the motor coils are powered on. If I force to rotate backwards the wheel, I see the torque sensor signal of TSDZ2 to get active while to should not!! I never had that issue with my BionX DD and the BMS...

I've added debounce now at github. Please try again. If it still doesn't work, please log ui16_SPEED and post the result.

regards
stancecoke

We have to debounce the signal by Software.

regards
stancecoke

It's not a problem of interrupt handling but of noise on the signal.

regards
stancecoke

Have you tried the latest commit? I've added some Software filtering some days ago....

regards
stancecoke

Obvoiusly, something went wrong with one of the latest commits, I've reset the master at github to an older commit. Hopefully everything works again with this.

regards
stancecoke

I presume you intend to add more adjustable parameters eventually? No, I think I won't spend more time in the BT-App, I'm not very experienced with android studio. Will it ever be possible to use this system and still retain the LCD3? You would have to use something like the Lishui BT-Module that i...

I've built a very basic android app, that sets the speed limit via bluetooth. It's not looking very professional, but it works :| . The sourcecode and the .apk can be found at github: https://github.com/stancecoke/C_ROME-B_APP It shows the diagnostics output also, but has no logging function. regard...

I've now upgraded to SDCC 3.7.2 but unfortunately the compiler's dislike of 'uint32_current_target' did not go away. I've now removed this parameter from the diagnostics 'printf' command (main.c) and it compiles and flashes ok. please make sure, that the line extern uint32_t uint32_current_target; ...

kdog wrote: ↑

Aug 11, 2018 7:44 am

Is the Kt controller compatible with a bafang 850e colour display?

No, only Kingmeter J-LCD and Kunteng LCD3/5 are supported.

regards
stancecoke

Thank you, casainho and ~dg, for your feedback, but I think, both of you are not the "typical" user :wink: My idea was to use the "!" for the command to write a parameter and the "?" for a query. Of course I could add a checksum. But as there is no feedback from other users, that this UART/Smartphon...

I've experimented a little with using the EEPROM for parameter storage instead of defining them in the config.h https://github.com/stancecoke/BMSBattery_S_controllers_firmware/tree/EEPROM_experimenting As an example the speed limit is read from the EEPROM address (offset) 1 in this fork. This gives ...

Please update to SDCC3.7.1:
https://sourceforge.net/projects/sdcc/f ... e/download

There were some strange errors reported in the german forum with the 3.7.0 revision, too.

regards
stancecoke

I've added some more descriptions in the tutorial, I think the syntax of the printf command should be self explaining with the example.
https://opensourceebikefirmware.bitbuck ... ndex6.html

regards
stancecoke

geofft wrote: ↑

Aug 06, 2018 10:13 am

I look forward to using my new gadget for real sometime..

you can print out ui16_current_cal_b in column 1 instead of dutycycle for example and compare it with the recent current in column three, to see why the motor pushed at standstill...

regards
stancecoke

Normally I log a complete testride and do the analysis in Excel afterwards. The result is something like this 8) https://www.pedelecforum.de/forum/index.php?attachments/regen_current_vs_speed_improved-png.199359/ or a more recent and more confusing example: :? Example Log.PNG regards stancecoke

geofft wrote: ↑

Aug 06, 2018 8:22 am

Any suggestions gratefully received..

Try to swap rx and tx!

regards
stancecoke

There seems to be something wrong/different with your LCD3. Perhaps it uses a different XOR for the checksum. You can try different numbers in this part of the display.c: if (((ui8_crc ^ 10) == ui8_rx_buffer [7]) || // some versions of CRC LCD5 (??) ((ui8_crc ^ 5) == ui8_rx_buffer [7]) || // CRC LCD...

Nice project! Why don't you use a bluetooth module to send the data to the smartphone? There are many code examples how to send / receive serial data via bluetooth with android. This turorial shows how to conncet the module in principle. The BlueTerm app can only show ascii data, there are other app...

Any help would be really great, as I'm quite stuck on that, I don't want to brick my dear controller. I'm close to getting that ride really perfectly tuned ! Go ahead and read chapters 2-4 of the tutorial also, you will learn, that you just have to press the "write option bytes" button of the Java ...

We can use statics without initializers anywhere. And we can use statics with initializers at the file level. This at least avoids making everything global. Thank you for that explanation! I followed your advice in my fork, now it compiles without errors with the debug option enabled :-) regards st...

geofft wrote: ↑

Aug 01, 2018 5:37 am

I'll wait for your tutorial on this first though. As always, no hurry...

I've added the tutorial now
https://opensourceebikefirmware.bitbuck ... ndex6.html

I hope it is detailed enough, as it's just a "quick and dirty" document.

regards
stancecoke

You have to be careful pushing backwards at switch on too, this occasionally causes the motor to drive forwards quite strongly. can you try if changing uint8_t PAS_act=3; //recent PAS direction reading to uint8_t PAS_act=0; //recent PAS direction reading in the main.c fixes this problem? It never o...