candle-usb/candleLight_fw

CANable Pro & candleLight_fw: doesn't work anymore

Ciusss89 opened this issue · 4 comments

Ciusss89 commented

I used this CAN adapter (CANable PRO) with candleLight fw to develop my thesis project. It has worked well.

I tested the system today but seems that the CAN adapter has a problem with last Linux/firmware (or both):

  1. I'm running fedora 33 with Linux vaio 5.10.19-200.fc33.x86_64 #1 SMP Fri Feb 26 16:21:30 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux
  2. Looking into kernel commit I noted this -> can: gs_usb: fix endianess problem with candleLight firmware
  3. Canble pro update page reports new firmware availble:
  4. I tested both (a8a0757 and 68df7d5 1/3/21 BETA) and doesn't work.
~ $ dmesg  | tail -n 7
[59704.827955] usb 3-2: new full-speed USB device number 15 using xhci_hcd
[59704.955316] usb 3-2: New USB device found, idVendor=1d50, idProduct=606f, bcdDevice= 0.00
[59704.955323] usb 3-2: New USB device strings: Mfr=1, Product=2, SerialNumber=3
[59704.955326] usb 3-2: Product: canable gs_usb
[59704.955328] usb 3-2: Manufacturer: canable.io
[59704.955330] usb 3-2: SerialNumber: 00020009524E430220373533
[59704.957981] gs_usb 3-2:1.0: Configuring for 1 interfaces

Left term candump, right term cangen.
ezgif com-video-to-gif

PS: it works fine with slcand

fenugrec commented

I observe two things here.

1- I can have similar behavior if there's just one CAN device (the candlelight) on the bus, i.e. no other device to generate the ACKs. [EDIT] candump sees 3 echo frames because the firmware succeeds in filling the 3 hardware mailboxes and assumes they are then transmitted fine . There is no checking to verify the mailboxes have indeed been processed, so this is expected.

2- "no buffer space available" : this is normal, and should rectify itself if you activate a second CAN node on the bus.

works fine with slcand

Are you saying a single slcan device shows echo'd frames even with no other node to generate the ACK ? That doesn't sound right.

fenugrec commented

@Ciusss89 anything new ? Have you tested with at least 2 devices on the bus as I mentioned ?

Ciusss89 commented

I miss your replay. I'm apologize for the delay! I will do a new test this weekend!

fenugrec commented

Closing this due to no info. Feel free to reopen