Power ManagementのトピックRe: FS84

FS84

liubenjun — Thu, 05 Nov 2020 05:52:35 GMT

Hi NXP team,

For FS84,Can I read Main OTP_REGISTERS data?If it can be read, please tell me how.Thanks!

Re: FS84

guoweisun — Thu, 05 Nov 2020 06:20:54 GMT

Unfortunately I am afraid that you can't read it out!

Re: FS84

liubenjun — Thu, 05 Nov 2020 07:02:44 GMT

Thanks, and I read some voltage values through M_AMUX register. For example: VDDIO voltage = 3.23V, VBUCK1 voltage = 1.25V, VBOOST voltage = 5.78V.So, how do I know that these voltage values are correct.

Re: FS84

liubenjun — Thu, 05 Nov 2020 09:08:56 GMT

Okay,Thank you for your reply，I have another question，I read some voltage values from the M_AMUX register as follows: VDDIO voltage = 3.23V, VBUCK1 voltage = 1.25V, VBUCK3 voltage = 2.32V, VPRE voltage = 3.29V, VBOOST voltage = 5.78V, etc. How do I know these voltage values are correct.

Re: FS84

guoweisun — Thu, 05 Nov 2020 10:26:34 GMT

Do you know the value you set about these regulators?

Re: FS84

liubenjun — Fri, 06 Nov 2020 03:11:44 GMT

Isn't the regulator configured by OTP?Are these voltages related to the Main OTP_REGISTERS configuration?

Re: FS84

guoweisun — Fri, 06 Nov 2020 04:34:26 GMT

这些regulators输出的值都是您选择的或者自己预定的，AMUX读出来的值您比较下就知道了，但是OTP寄存器里面的数值一般不再客户端支持读取。

Re: FS84

liubenjun — Fri, 06 Nov 2020 05:20:31 GMT

这些regulators输出的值是硬件还是软件设定的？

Re: FS84

liubenjun — Fri, 06 Nov 2020 09:27:53 GMT

谢谢！我知道预设的电压值了。