RTOS/CC2640R2F: CC2640R2F enter the state of HIB when the tesla coil approaches it

AndyChen

Part Number: CC2640R2F
Other Parts Discussed in Thread: CC2640

Tool/software: TI-RTOS

I held a tesla coil close to my CC2640R2F board. The CC2640R2F stops working , it can't be recovered automatically , i have to power it up again.

I have used the watchdog, in the watchdog interrupt callback the HAL_SYSTEM_RESET() is called. But no watchdog reset occurs, or it has ever generated a watchdog reset, but the reset failed.

It looks like the CC2640 is in the state of HIB, because when I connect the TCK directly to VCC , the CC2640R2F will not enter the halt , and when the Tesla coil is close to it, it always resets normally.

What should I do to solve this problem, this halt state is unacceptable, I hope it can be reset normally and recovered automatically when the Tesla coil is close to it.

over 6 years ago

0 TER over 6 years ago

TI__Guru**** 317180 points

Could you check if the information on TCK in 5.4 in www.ti.com/.../swcu117h.pdf could be the reason for what you are seeing?

0 AndyChen over 6 years ago in reply to TER

Intellectual 450 points

Hi TER,
It looks very consistent with my phenomenon:
I added a 10K or 1K pull-up resistor and still occasionally enter the HALT state.
After reducing the pull-up resistor to 500Ω, it will almost never enter HALT , but the flash programming always fail.

As mentioned in chapter 5.4 of the document, if AON_SYSCTL:RESETCTL[13:12] = 0b10 prior to entering shutdown, the HIB flag will not halt the device on the subsequent boot.
Can this method solve my problem?
But i cant find the API to set AON_SYSCTL:RESETCTL[13:12] in SDK, Can I set this register AON_SYSCTL:RESETCTL[13:12] directly?

0 TER over 6 years ago in reply to AndyChen

TI__Guru**** 317180 points

Good question. I have sent a mail to the engineer that makes the driverlib functions. I'm not sure if he is in the office today and hence it could be that you have to next Tuesday.

For debug you can try using HWREG as used in this thread: e2e.ti.com/.../670455

0 TER over 6 years ago in reply to TER

TI__Guru**** 317180 points

We don't have a API for this, I got this confirmed now.

EDIT: I got a different mail claiming otherwise. I have to check this in detail next week.

0 TER over 6 years ago in reply to TER

TI__Guru**** 317180 points

Not an API as such but:
If you go to <sdk install path>\source\ti\drivers\power\PowerCC26xx.h and seach for TCK you will find a comment section on how this could managed on CC2640R2.

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RTOS/CC2640R2F: CC2640R2F enter the state of HIB when the tesla coil approaches it