System hangs when restart using Ethernet

Mattia Berton

Hello,

I'm developing an application using the Ethernet to Modbus software suite (TIDU348), but I face a FaultISR when I try to restart (not reset) the board. That is caused by the Ethernet Interrupt lwIPEthernetIntHandler, which is called before enabling the Ethernet, such that the g_sNetIF is not properly initialised, and in the Interrupt it has data not valid that cause the FaultISR.

So, what I'd thought to do was to keep all interrupts disabled at the beginning of the reset, and the to re-enable them only after the complete initialization. Unfortunately, I can't find where the global interrupt disable is, nor where I could put such an instruction.

Can you help me?

Thanks,

Mattia Berton

over 9 years ago

0 Amit Ashara over 9 years ago

TI__Guru**** 244400 points

Hello Mattia,'

How do you restart the board, without a reset?

Regards
Amit

0 Mattia Berton over 9 years ago in reply to Amit Ashara

Prodigy 210 points

Using the "Restart" button in the CCS.

However, I understood that this situation is not possible to realize in the real world, because it should be a PC that points to the main() for error.

Thanks the same.

0 Amit Ashara over 9 years ago in reply to Mattia Berton

TI__Guru**** 244400 points

Hello Mattia

When you do a "Restart" button in the CCS, that does a "CPU reset" and not a "Soft System Reset". Instead in the Restart option use the "System Reset" and then check if the issue occurs

When a CPU reset is done the peripherals are not reset, causing stale values to generate interrupts while the program is being executed. A System Reset resets the peripherals as well.

Regards
Amit

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System hangs when restart using Ethernet