2022-05-01 09:57 PM
We are using STM32L073.
When a 512Hz square wave is output to PC1 using LPTIM_OUT (source clock LSE), if the calibration output of PC13 is set to 512Hz, the PC1 output will make a large transition to about 509Hz at around -30 ° C. When set to NONE, the PC1 output is about 511.9Hz, so it is within the expected change in the temperature characteristics of the crystal unit.
I think the PC13 settings are affecting the LSE oscillation. Shouldn't this be written on a datasheet or errata sheet?
2022-05-03 02:04 AM
You mean, like it is in the STM32G0 series?
JW
PS.
@Imen DAHMEN , maybe this deserves some attention...?
2022-05-03 04:40 PM
That's right.
I think that the same phenomenon as the STM32G0 and STM32L4�?STM32WB series is occurring.