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ckflight / ESC_BLDC_HARDWARE

BLDC 3 phase motor speed controller hardware design working with open source BLHeli_S firmware.
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Firmware upload probelm #5

Closed maniksingla2166 closed 7 months ago

maniksingla2166 commented 7 months ago

Hi, i have a query, I made a pcb using your schematic diagram. I am unable to upload the blheli_s firmware in it . Is there any special pin or any process i need to follow to upload the firmware ? Currently i am using BlheliSuite as the configurator for uploading the firmware. It is not detecting my esc, whereas it is detecting the other readymade esc which already has a firmware in it .

ckflight commented 7 months ago 
When esc is new assembled the EFM8BB2 does not have BLHeli_S Bootloader.
For the first time flashing, 4wire interface is used by using 
C2CK, C2D, 3.3v and GND pins
    where it will load both bootloader and firmware to esc.
After this step, esc can be flashed with 1-Wire interface (Esc's pwm pin).

***Flashing ESC for the first time.

1. Open "Make interfaces" section
2. Select the Arduino board that will be used as programmer.
3. Click "Arduino 4way-interface" and flash it to arduino.
   (Now arduino became a 4wire programmer)

4. Select "SILABS C2 (4way if)"
5. Connect Arduino to Custom ESC
       GND to GND 
   3.3v to 3.3v
   Arduino Pin12 to C2D 
       Arduino Pin11 to C2CK
6. Open ESC Setup section and connect to esc and click Flash BLHeli
   (choose suitable version, my custom quadcopter esc v2 is working with C type)

Now the esc is both flashed with blheli bootloader and the blheli firmware, 
therefore 1wire interface can be used which is the esc's pwm pin. 
Or flight controller can be used in passthrough mode.

There are tons of documents and videos on how to flash blheli on youtube as well!!