How convert MC33664/MC33772 hex response ?

Yan1 — Thu, 29 Sep 2022 13:31:09 GMT

Hello,

I can received message from a MC33772 using the MC33664 with TPL communication.

For example I know how to send the command "Read 1 to 6 cells voltages"

I get the answer with 6 differents frame, corresponding to the 6 cells voltages :

E3 1F BB 10 75

E3 09 BC 10 70

E3 BA BD 10 FC

E3 0F BE 10 A9

E3 13 BF 10 E8

E3 13 C0 10 57

I would like to know how I can translate this hex values in volt ?

I have the same question with temp values and others response I can get...

I didn't find anything in documentations about this component.

Thanks a lot

Re: How convert MC33664/MC33772 hex response ?

TomasVaverka — Mon, 03 Oct 2022 07:01:30 GMT

Hello Yan,

I would recommend you to take a closer look at our AN12084 (MC33771B/MC33772B Programming Guide) that explains, among others, how to convert raw values from MEAS_xxx registers to real values in Volts, Amps and °C.

The AN12084 can be downloaded rom the MC33772 product website and is classified as a Secure File requiring an NDA.

Best regards,

Tomas

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How convert MC33664/MC33772 hex response ?

Re: How convert MC33664/MC33772 hex response ?