About the GDU compoment of CW10.6.4 MC9S12ZVML128MKH

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About the GDU compoment of CW10.6.4 MC9S12ZVML128MKH

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Fan_xy
Contributor III

Hello ,

the chip is MC9S12ZVML128MKH,   CW10. 6.4

In the configuration of the Init_GDU, the “Current sense amplifier” can not be disabled or the “Amplifier

Output” can not be disabled , does this is a bug or it is sure can not disabled ?

I want to use the pin “PAD5_KWAD5_AN1_0_AMP1” as AD channel , while  in the

“Init_GDU” can not disable this pin .

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Thank you very much !

Fan

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1 Reply

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marek_neuzil
NXP Employee
NXP Employee

Hello,

If you look in the reference manual of the derivative, you can find that there is not any routing register for AMP0/1 pins:

pastedImage_0.png

The routing is done by enabling the current sense amplifier, i.e. you cannot route this pins as ADC when the current sense amplifier is enabled (it is also higher priority).

For details see the reference manual of the derivative.

Best Regards,

Marek Neuzil

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