CyUsb232 SEH exception

Tip / Sign in to post questions, reply, level up, and achieve exciting badges. Know more

cross mob
Anonymous
Not applicable

I'm using the CYUSBS232 USB-UART LP Reference Design Kit (Windows 7 64 bit, cyusbserial version 1.0.3.81) and sometimes get an SEH exception:

SEH exception EXCEPTION_ACCESS_VIOLATION at address 0x000007FEFA28AAFB inside cyusbserial.dll loaded at base address 0x000007FEFA280000

I have a feeling that this is triggered somehow by using event notifications, i.e. a method registered with CySetEventNotification. My event handler just prints something to the console while the main thread is doing serial communication on the device. I have noted that the event notification callback is done in a separate thread.

Is this a known issue? Is there anything I can do about it? Can I expect an update to the device driver and/or DLL anytime soon?

Kind regards,

Timon Zijnge

0 Likes
1 Solution
SrinathS_16
Moderator
Moderator
Moderator
1000 replies posted 750 replies posted 500 replies posted

Hello Timon,

Please let us know the USB Serial driver version and the firmware version that you are using.

Also, update the cyusbserial.dll file version to 1.0.3.82, which can be obtained from the USB-Serial SDK. Please refer to the below location for USB-Serial SDK.

USB-Serial Software Development Kit | Cypress Semiconductor

Best regards,

Srinath S

View solution in original post

0 Likes
2 Replies