usb device work wrong under static electricity test in 6kv.

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laze_4418921
Level 3
Level 3
25 sign-ins First solution authored 25 replies posted

usb device work wrong under static electricity test in 6kv.   when device works wrong , we cant get any uvc or cdc-uart data in bushound, but down channel still works well at the same time.  and then the device can return to normal state after reconnect and without poewroff.  i want to make sure what will make this and if any useful state can be used to help solve it?

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Rashi_Vatsa
Moderator
Moderator
Moderator
5 likes given 500 solutions authored 1000 replies posted

Hello,

Please let us know the which  USB product (part number) are you referring so that we can help you better.

 

Regards,
Rashi
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fx3 with cyusb3014

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Hello,

I understand that the ESD test are done on a custom board with FX3 programmed with custom firmware. Is that correct?

Please program FX3 with default bulksrcsink (path :Fx3 SDK Installation path\Cypress\EZ-USB FX3 SDK\1.3\firmware\basic_examples\cyfxbulksrcsink) firmware of the latest SDK and then perform the ESD test and let me know the results

Regards,
Rashi
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