[ATT]9358

[alessio31183]

Posted on August 29, 2017 at 18:35

Dear all,

I'm writing .cpp driver for Arduino for the LIS3DHH but something seems wrong.

No replies from the accelerometer.

Do you have any suggestion on the SPI correct communication task reading my files?

[Miroslav BATEK]

Posted on August 30, 2017 at 11:16

I didn't have chance to try your code yet. But at first glance, can you please try SPI mode 3?

[alessio31183]

Posted on August 30, 2017 at 11:29

Hi Miroslav,

I've found the issue. It was a bad SPI writeRegister procedure.

Attached the files updated.

Now I'm struggling withe the interrupt 1 settings, but this is another

issue.

Thanks

Alessio

________________

Attachments :

LIS3DHH.cpp.zip : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HyRS&d=%2Fa%2F0X0000000b8B%2FlIWi6xYE216a.HD7s74uNFjzUVBojEOMALzNfNN22qY&asPdf=false

LIS3DHH.h.zip : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006HyI6&d=%2Fa%2F0X0000000b89%2F8A9hJQ..Byl.qHClsAqj2PgmNAtmHEB.8j2qPDRMJiM&asPdf=false

[alessio31183]

Posted on August 30, 2017 at 20:56

If I change the DRDY_PULSE = 1, I get the interrupt each value uploaded in the FIFO register.

Instead the I get an interrupt every 910 us => 1.1KHz  the accelerometer ODR.

Anyway I'm not able to get the right FIFO interrupt.