MSPM0G3507: SYSPLL_ERR_01: Avoiding Infinite Loops in SysConfig-Generated Code

K.Z

Part Number: MSPM0G3507
Other Parts Discussed in Thread: SYSCONFIG

Hi All,

Regarding SYSPLL_ERR_01, when generating code using SysConfig, it seems that an infinite loop occurs if the value does not fall within the threshold (0.3%).

Although I believe an infinite loop would not occur in practice, it is not acceptable to include code in a mass‑production product that could potentially enter an infinite loop, so a countermeasure is required.

Specifically, would it be appropriate to call SYSCFG_DL_SYSCTL_init() and place a limit on the number of times the PLL is reconfigured within that function?
In the pre‑sample code we previously received from TI, a limit of 16 retries was implemented.

Best Regards,

Ito

6 days ago

0 Zoey Wei 6 days ago

TI__Genius 11621 points

Hi Ito,

Will reply to you tomorrow. Thanks!

0 Zoey Wei 5 days ago

TI__Genius 11621 points

Hi Ito,

It depends on customer, if customer want to reduce the risk sticking in infinite loop, they can change threshold.

0 Zoey Wei 5 days ago in reply to Zoey Wei

TI__Genius 11621 points

But I don't recommend add limit of retry times. Or once we reach the limitation, then what happened? The frequency is still be abnormal. So the better way would still be reinit again until it meet our expected frequency.

0 K.Z 4 days ago in reply to Zoey Wei

Genius 3095 points

Hi All,

I understand that changing the threshold will relax the conditions required to break out of the loop.
So, what value should I change it to from the default 0.3%?
At what threshold can we guarantee that the loop will always be exited?

Best Regards,

Ito

+1 Zoey Wei 4 days ago in reply to K.Z

TI__Genius 11621 points

Hi Ito,

0.3& is enough to cover 99.99999999% situation. I cannot guarantee all the situation since SYSPLL might be physical damage.

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MSPM0G3507: SYSPLL_ERR_01: Avoiding Infinite Loops in SysConfig-Generated Code