Bpod devices not found

veronica

I just successfully completed the installation of the Bpod software from the repository https://github.com/sanworks/Bpod_Gen2 on my computer (we're using Bpod 0.7 on windows 10). However when I plug the Bpod devices and try to run it, it says "Bpod device not found". I've tried it with two different devices and none of them work.
The error I get is:

'Error using BpodObject/Connect2BpodSM (line 106)

Error: Could not find Bpod device.
Tried USB serial port(s): COM3
Try calling Bpod with a serial port argument, i.e. Bpod('COM3')'

Error: Bpod device not found.

The device manager on my computer shows a 'USB serial device (COM3)' under Ports, so I tried Bpod('COM3') but it just gives a different error which says the serial port is returning 0 bytes.
Does anybody have an idea of how to fix this?

Thank you!

Josh

Hi Veronica,

If you power-cycle the state machine (unplug the USB cable and re-plug it), restart MATLAB and try Bpod('COM3') again, does it work?

-Josh

veronica

Hi Josh,

No, it does not work.

FloreB

Hi everyone,

I have exactly the same error. My bpod worked yesterday but, being new on the project and totally unfamiliar with the system I tried to update softwares and firmwares to try to understand the system and it stopped working at some point. Now I'm trying to go back to what I had before I started working on it but it still doesn't work...

Do you have any idea of what the problem might be?

Thank you for your help!

Flore

FloreB

FloreB wrote[quote='FloreB' pid='1009' dateline='1550049727']
Hi everyone,

I have exactly the same error. My bpod worked yesterday but, being new on the project and totally unfamiliar with the system I tried to update softwares and firmwares to try to understand the system and it stopped working at some point. Now I'm trying to go back to what I had before I started working on it but it still doesn't work...

Do you have any idea of what the problem might be?

Thank you for your help!

Flore

Hi again,

I finally found the solution: I had updated firmwares of the analog output module on the bpod state machine (not in purpose of course, I had not unplugged the state machine while trying to update the analog output's firmwares on the module).

I hope you will fin your error Veronica!

Flore

Josh

This is a known issue with Teensyduino, prior to the latest version - when multiple Teensy boards are connected, the incorrect target board can be programmed instead of the one selected in the Arduino 'Ports' menu.

The solution is to upgrade Arduino and Teensyduino to the latest versions.

I hope this helps,
-Josh

ARaza

Hi, I am running into the same problem. I have tried different devices but issue persists. I am using Bpod 0.5 and I tried Bpod-Gen2 and legacy software but that didn't help.

Josh

Hello ARaza,

Do you know which firmware version your state machine is running? State Machine r0.5 pre-dates our current auto-detection scheme, so older machines may not have been updated to a firmware version compatible with auto-detection. You may be able to connect if you run Bpod('COM3'); substituting COM3 with the actual USB serial port name of your state machine.

Regardless of whether it works with the port argument, I'd try this:

Add the current Bpod_Gen2 software in the MATLAB path and check to make sure there are no older Bpod versions in the path.
Run LoadBpodFirmware at the MATLAB command prompt
Select State Machine r0.5. The latest firwmare (v23) will be selected automatically.
Select the correct USB serial port and click 'Load'.

With firmware updated, you should be able to connect.

Please let us know whether this worked for you!

Thanks,
Josh

ARaza

Hi, I am getting the following error when i connect Bpod2.5:

Error: Could not find Bpod State Machine.
Tried USB serial port(s): COM2
Try calling Bpod with a serial port argument, i.e. Bpod('COM2')

I have tried Bpod('COM2') yet I am getting the following error:

Error: Could not find Bpod State Machine.
Tried USB serial port(s): COM2

I have checked the following:

Bpod_Gen2 software in MATLAB path, no older versions in the path
Tried connecting different cables
Tried different PCs

Also, I have recently updated the firmware when i first came across this issue.

Kindly help!

Josh

Hello ARaza,

If the issue manifested following a firmware update, I'd recommend re-loading the firmware to the device.
Please try running LoadBpodFirmware at the MATLAB command prompt, and follow directions here to complete the upload.

The firmware to select from the menu is: StateMachine_Bpod_2_5

Please let me know if this works.

Thank you,
Josh