topic Re: V15 for S32K344 is about 0.2V while using BJT in S32K

V15 for S32K344 is about 0.2V while using BJT

steven_zhang — Wed, 31 Aug 2022 07:33:46 GMT

my client made a S32K344 board ,the V15 is power by a BJT , but the voltage for V15 is about 0.2V while the PET13 is 0 voltage.

i checked the EVK the V15 is about 0.1V and the PET13 is 0 voltage.

can anyone help me ?

danielmartynek — Fri, 02 Sep 2022 07:31:13 GMT

Is the LMBCTLEN bit set?

Please refer to Figure 159. Last-mile regulator enable sequence in the RM, rev.4

BR, Daniel

steven_zhang — Fri, 02 Sep 2022 08:29:02 GMT

i found the power_1 module in which one can config the regulater.