Invalid USB header error when using Intan Eval Board

[mcnallyj1]

Hi All,
I have been trying to use Bonsai for closed-loop sleep deprivation. Presently, the workflow uses an Intan eval board to acquire an LFP signal the signal is then filtered and processed. If the input signal meets certain criteria denoting sleep, the workflow will trigger an output TTL. The workflow seems to function as anticipated and works well. The only issue is keeping it running...

I keep running into "Invalid USB Header" errors, which randomly pop up after varying amounts of time. I believe the Intan source node triggers the issue, but am not entirely sure. Has anyone else experienced this type of issue? Any ideas on what to do to keep it this from occurring?

Thanks in advance.

[glopesdev]

@mcnallyj1 can you share the workflow you are using?

Also can you tell us the exact hardware you are using with this node? Is it a RHD2000-EVAL board or an OpenEphys board? If the latter are you using the USB2 or USB3 version?

[mcnallyj1]

Sure thing. Attached is a copy of the workflow. Regarding hardware, on the front end we are using an RHD2000 EVAL Board with a 16 channel Intan headstage to provide the LFP signal. On the back end, we are using an National Instruments USB 6341 to provide the digital output to drive an auditory stimulus. I believe both devices are USB2 versions and are plugged into USB ports on the PC (no hub). Thanks for any suggestions you can provide.

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________________________________ From: glopesdev ***@***.***> Sent: Wednesday, December 17, 2025 5:04 PM To: bonsai-rx/bonsai ***@***.***> Cc: McNally, James Matthew ***@***.***>; Mention ***@***.***> Subject: Re: [bonsai-rx/bonsai] Invalid USB header error when using Intan Eval Board (Discussion #2491) @mcnallyj1<https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_mcnallyj1&d=DwMFaQ&c=WO-RGvefibhHBZq3fL85hQ&r=0tHzFRZPj1TpfXOXMbavNGCGlA24fLCaEb99Bwwh9a8&m=9ZzyW2pWAGtpH4KyP7fNyKHMbNFdGwUhseWYOXprTP2MT_6AzUYV2i9Y_1D8qkr1&s=wgkHXr5N0gii03XlrW-kUkUQmzvDxP4EjNl5q6idp74&e=> can you share the workflow you are using? Also can you tell us the exact hardware you are using with this node? Is it a RHD2000-EVAL board or an OpenEphys board? If the latter are you using the USB2 or USB3 version? — Reply to this email directly, view it on GitHub<https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_orgs_bonsai-2Drx_discussions_2491-23discussioncomment-2D15283615&d=DwMFaQ&c=WO-RGvefibhHBZq3fL85hQ&r=0tHzFRZPj1TpfXOXMbavNGCGlA24fLCaEb99Bwwh9a8&m=9ZzyW2pWAGtpH4KyP7fNyKHMbNFdGwUhseWYOXprTP2MT_6AzUYV2i9Y_1D8qkr1&s=CTu8xUbrTCCXv9k7QWtDdI5oYLzYVS67kzyqNkyRbcY&e=>, or unsubscribe<https://urldefense.proofpoint.com/v2/url?u=https-3A__github.com_notifications_unsubscribe-2Dauth_AB5YAYTIIJP3SKOFSZLO7CD4CHHO3AVCNFSM6AAAAACPLMOMCCVHI2DSMVQWIX3LMV43URDJONRXK43TNFXW4Q3PNVWWK3TUHMYTKMRYGM3DCNI&d=DwMFaQ&c=WO-RGvefibhHBZq3fL85hQ&r=0tHzFRZPj1TpfXOXMbavNGCGlA24fLCaEb99Bwwh9a8&m=9ZzyW2pWAGtpH4KyP7fNyKHMbNFdGwUhseWYOXprTP2MT_6AzUYV2i9Y_1D8qkr1&s=UnuE83Fqtt3GNeczDJOpaqMQWE0O4JOUO-VgkgyPcBk&e=>. You are receiving this because you were mentioned.Message ID: ***@***.***>