USB peripheral TIVA

utpal kumar

Other Parts Discussed in Thread: TM4C123GH6PM

Dear All,

We are working on TM4C123GH6PM which communicates with PC through USB.We have done necessary configuration require for USB peripheral of controller which is in Device mode.We are using usblib provided by Texas.Loopback is working but when we send data continiously,after 20-25 bytes of data,it stops sending and controller receives FaultISR.

Kindly advice !!

over 11 years ago

0 Amit Ashara over 11 years ago

TI__Guru**** 244400 points

Hello Utpal,

When the CPU gets a FaultISR, the NVIC_FAULTSTAT and NVIC_FAULTADDR will contain the fault type and address (if it is a system address). Can you check the two registers.

Regards

Amit

0 utpal kumar over 11 years ago in reply to Amit Ashara

Expert 2340 points

Dear Amit Sir,

Thanks for your quick response.

PFA snap for register.

Please let me know ,how to move ahead.

0 Amit Ashara over 11 years ago in reply to utpal kumar

TI__Guru**** 244400 points

Hello Utpal,

It looks like The fault happened due to access to a location which is not there in the memory map of TM4C123. The location indicates Flash but that flash region does not have anything so an Abort will be triggered causing the Fault. You would need to check the code to see the cmd file has correct memory space definition.

Regards

Amit

0 utpal kumar over 11 years ago in reply to Amit Ashara

Expert 2340 points

Dear Amit,

Thanks for your help.

Issue is resolved with your suggestions.

0 Amit Ashara over 11 years ago in reply to utpal kumar

TI__Guru**** 244400 points

Hello Utpal,

Glad to hear that. But for the sake of forum knowledge base it would be good to know what the issue was, how it got introduced in your project and what the resolution is.

Regards

Amit

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USB peripheral TIVA