TMS570LS3137: LWIP FIQ and IRQ Handler

Hi Hasan,

I didn't face this issue in the past,

i want to give references for few similar threads here, go through them and they might be useful:

(+) RM57L843: RM57L843: Questions for LwIP example - #2 - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

(+) RM48L952: HalCoGen FreeRTOS vPortSWI is corrupting memory - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

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Thanks & regards,
Jagadish.

Hi,

I have seen these examples before in the forum but this is not exactly my problem. I don't use FreeRTOS and DHCP, I use static IP, I change the configuration of the code running in IRQ to FIQ only.

Best Regards.

Hi Hasan,

The reason for unlocking this thread is that it is not closed properly from TI side, so i unlocked it again.

Apologies for the incontinence.

Are you still stuck with this issue, if yes then please let me know exactly where you stuck with this now.

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Thanks & regards,
Jagadish.

Hi,

I still haven't figured out what's causing this problem.

Best Regards.

Hi Hasan,

Can you please refer below threads once, here also customer tried same requirement:

(18) RM57L843: RM57L843: Questions for LwIP example - #2 - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

(18) lwIP + FreeRTOS port - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

(18) lwIP+FreeRTOS Port - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

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Thanks & regards,
Jagadish.

Hi Jagadish,

My issue doesn't seem to be related to any of those. The functions in the sys_arch.c file were already disabled. Only the sys_now function was enabled.

When I configure it as FIQ, the connection is established, but the code gets stuck somewhere. If I halt the software after the connection is established, it's stuck either in undefEntry or prefetchEntry.

If the connection is not established, the software keeps executing the _dabort function in dabort.asm from within the hdkif_rx_inthandler interrupt handler.

Everything works smoothly this way.

Best Regards.

Hi Hasan,

And you have to remember one more thing that is, if you are trying to use both IRQ and FIQ then you should call the function _enable_interrupt_ instead of _enable_IRQ_interrupt_.

Because _enable_IRQ_interrupt_ API will only enable the IRQ interrupt, however _enable_interrupt_  API will enable both IRQ and FIQ.

For more details refer below thread once:

(16) TMS570LS0714: How to change an ISR type from IRQ to FIQ mode while CPU is running - Arm-based microcontrollers forum - Arm-based microcontrollers - TI E2E support forums

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Thanks & regards,
Jagadish.

Hi Jagadish,

I have activated all interrupts in FIQ and IRQ, but the problem was still not solved. I’m sending you sample codes for both. Thank you for your help.

ETHERNET_IRQ.zip

ETHERNET_FIQ.zip

Best Regards.

Hi Hasan,

Apologies for the delay,

Thanks for the codes, and i didn't get time to look into your codes. I will try to do it by tomorrow.

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Thanks & regards,
Jagadish.

Hi Hasan,

I verified your codes and they seem to be fine and i don't find any issues in the code. However, i don't have this board TMS570LS3137 to test the codes in practical. 

Give me some more time to get this board and verify, if i don't have this board then i will try to create another project with other Hercules board and will try to reproduce your issue.

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Thanks & regards,
Jagadish.

Hi Jagadish,

Thank you for your attention. When you run the "ETHERNET_FIQ" code, you will see that the software goes to the undefEntry as I described. I look forward to your response.

Best Regards.