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  1. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Trying to review code , to find max ERPMS ; #define PWM_CYCLES_COUNTER_MAX 3000 // higher values assume motor is at standstill. #define PWM_CPS_NORMAL_SPEED 15625L #define PWM_CPS_HIGH_SPEED 20833L Do i understand correctly , that max eRPM is 15625/30 and 20833/30 ?
  2. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Look at schematic. Hall sensors must go to PINS 38-40 of CPU. https://opensourceebikefirmware.bitbucket.io/development/EmbeddedFiles/32-BMSBattery_S06S-Kuteng_EBike_motor_controller_schematic.pdf If pins are wrong , you can define them in gpio.h BR , Linas
  3. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Hi , sorry for late answer. At last i figured out this case. I think it was my faulty. It was something wrong with firmware compiling. I downloaded source one more time and compiled it. And miracle happened , PWM appeared at both : Low and High side . I attached the motor, some angle...
  4. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    I studied source to find out , where i can insert this . Its a complicated to me , i dont know this cpu .. Stancecoke, please help me with this. Br, Linas
  5. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Look here : https://github.com/stancecoke/BMSBattery_S_controllers_firmware/wiki/01-Hardware-needed CPU is STM8S105 ?
  6. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    I measured resistance on pins 20-23 and GND - 3.3K . Then i cut the line to pin 20 . To cpu side ~7M , to resistors 3.3K Tryed to get diagram on cutted pin20 : Strange signal .. Can it be something wrong with CPU or pin output not initialized properly ? How to find it out ? As on...
  7. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Ok , I will check. Here must be TTL levels ? Here must be same PWM at standstill, like on High side ?
  8. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    At STM8 pins 26-28 AT STM8 pins 20-22
  9. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Im metering with Rigol scope . I will check later. You mean measure on cpu pin by simple meter at duty cycle 50% must be half of supply voltage ?
  10. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Yes, its looks to be HalfBridge . On low side pins ~2,5V , if i remember correctly. PWM on HighSide is always on. Ontroothle i can see , that duty cycle chanching. Can you in short write motor starting sequence ?
  11. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    SDCC 3.9.0 https://github.com/stancecoke/BMSBattery_S_controllers_firmware I tryed different sinus modes - no success.
  12. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Schematic looks very similar. I can monitor by Bluosec ; voltage is ok , hall sensors is ok , then i rotate manualy its shows hall sensors , speed. Brake signal is ok. On this pcb are 2 low side mosfets in paralel and 1 for high.
  13. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    I have checked ; Low side at cpu pins 20-21 , high at 26-28 ; looks good. I'm measure with scope directly on cpu pins , no any impulses at low side - 20-21 pins.
  14. S

    KT motor controllers -- Flexible OpenSource firmware for BMSBattery S/Kunteng KT motor controllers (0.25kW up to 5kW)

    Hello , forum I'm new here. Trying to get work OpenSource controller. I have this one from ebay : I flashed it succsefuly . Installed Bluosec at phone , connection is ok. But motor does not start , no impulses at output. Throotle is ok , it can be monitored by Bluosec. Tryed to measure...
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