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Yz2
Associate II
Sep 30, 2025 6:10 AM UTC
Solved

AIS2120 CRC

Is this the correct way to calculate the CRC check code?

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Federica Bossi
Federica BossiBest answer
ST Technical Moderator
Sep 30, 2025 12:30 PM UTC

Hi @Yz2 ,

Yes, it is the correct implementation.

Please note that AIS120SX is labelled as obsolete, it is suggested to adopt new products such as AIS2DW12 or AIS2IH.

In order to give better visibility on the answered topics, please click on 'Best answer' on the reply which solved your issue or answered your question.
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2 replies

Federica Bossi
Federica BossiBest answer
ST Technical Moderator
Sep 30, 2025 12:30 PM UTC

Hi @Yz2 ,

Yes, it is the correct implementation.

Please note that AIS120SX is labelled as obsolete, it is suggested to adopt new products such as AIS2DW12 or AIS2IH.

In order to give better visibility on the answered topics, please click on 'Best answer' on the reply which solved your issue or answered your question.
Yz2Author
Associate II
Oct 8, 2025 1:06 AM UTC

But I cannot read the sensor ID via the clock, and the information replied by the sensor seems garbled, regardless of whether I use SPI mode 0 or mode 3. The command I sent is: 0xE180007F. Could you please help me check what the issue might be? Thank you very much for your assistance! 微信图片_2025-10-08_090139_754.png

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