N60 N30 N20 N10 ARM CPU firmware V20_251231

[admin]

1. fixed bug for energy data and power factor.
you can download by bootloader.exe tool by RS485.
ARM BIN file download:

  N10203060_KU_V20_251231.zip (Size: 13.11 KB / Downloads: 106)

bootloader.exe tool: 
  KC868 Controller Bootloader.zip (Size: 8.56 KB / Downloads: 71)
   
1. set baud rate=38400bps.
2. open com port.
3. power on Nx board, during LED fast blink when the "bootloader Detect" button right now. Then board will go to bootloader mode.
4. open BIN file
5. press "Download" button, begin download firmware, after finished, press "Run" button, ARM CPU begin work.
   

[edalquist]

I ended up using https://www.amazon.com/Programming-IFD65...B082WHR6NW for a RS485 connection

[admin]

no, need use by USB-RS485 adapter for download ARM CPU firmware.

[edalquist]

no, need use by USB-RS485 adapter for download ARM CPU firmware.

I tried but wasn't able to get the COM port to show up fast enough in Windows. The bootloader time of the reboot cycle would be done before I could get the flash tool launched. If I had the flash tool launched and connected to the port and then rebooted the N60 the flash tool would crash due to the com port disappearing.

[admin]

take a photo of your USB-RS485 adapter.

[edalquist]

Sorry I'm not sure I understand. My original attempt was just using a USBC to USBC cable from my computer to the USBC port on the N60. I wasn't able to get that to work so I used the USB-RS485 adapter I linked above.

[admin]

if you want update N60 ARM CPU firmware, you should use USB-RS485 cable, not use USB-C cable, USB-C use for download firmware to ESP32.