RM57L843: RM57Lx LWIP Data entry issue

VEERAPPAN P

Part Number: RM57L843

Hi team,

In our custom board we used RM57L843 microcontroller and it have Ethernet interface. I am using RM57Lx LWIP 1.4.1 It worked well ping and data transmission and reception are working but some times it goes into data entry interrupt vector. I don't know why it goes into data entry vector. please help to resolve the issue.

Thanks,

Regards,

Veerapan PA.

over 1 year ago

0 jagadish gundavarapu over 1 year ago

TI__Guru 69811 points

Hi Veerappan,

Please refer below trouble shooting process for exception.

(+) [FAQ] TMS570LC4357: Troubleshooting the Abort Exceptions on Hercules Devices - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

The processor takes the data abort if data is read from or written to a protected or faulty memory location. The data abort can be either synchronous or asynchronous.

The instruction that caused the data abort is at R14_ABT – 8 which means that the pointer points two instructions beyond the instruction that caused the abort.

So, first find out the instruction that is causing the abort.

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Thanks & Regards,
Jagadish.