[Resolved] Firmware upgrade RHF76-052 via YMODEM

End Devices (Nodes) Hardware
1

Hi,

I am working with a Seeeduino LoRaWAN with Rhf76-052 chipset. I would like to upgrade the firmware to the latest version(2.1.16) with lsx (since I am working with a non windows system)

I try:

lsz --ymodem --1k -vv rhf76-052am-v2.1.16-20171203.ebin.bin > /dev/cu.usbmodem1431

resulting in a:

Retry 0: Timeout on pathname

Does someone know how to upgrade the firmware with YMODEM without putty? I think minicom would be fine too…

2

If anyone stumbled upon this and would like to perform an firmware upgrade via YMODEM interface. This is how it worked for me:

  1. brew install lrzsz (if you are on a mac)
  2. Connect seeduino to your computer
  3. enter: screen /dev/cu.usbmodem1431 115200 (you need to replace the usb device with the appropriate one)
  4. switch to firmware mode on the node by pressing DFU button on the node
  5. type <ctrl-a>:
  6. enter: lsz --ymodem -w 8 -vv rhf76-052am-v2.1.16-20171203.ebin.bin

After some tries the firmware was upgraded successfully. Here I got the information how to connect with screen to a serial device:

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3

ok… so 'resolved ’ ?

4

Jep, resolved - at least the node is upgrade to the latest version. I think I tried the steps above several times before it worked out…

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