TMAG5273: TMAG5273 how to enable INT pin, when there is data ready to be readed?

Adam Ho

Prodigy 20 points

Part Number: TMAG5273

Tool/software:

Hi,

I am newer in this sensor,

Is there any easy example to teach me how to configure register with INT pin notify?

4 months ago

0 Alicia Rosenberger 4 months ago

TI__Genius 13670 points

Hi Adam,

Thank you for posting to the Sensors forum!

You can enable the device to send an interrupt via the RSLT_INT bit. You'll also need to set the INT_MODE bit as well, depending on how you want the interrupt to be sent. Make sure to also enable the desired magnetic channels via the MAG_CH_EN bits. From here you can use the OPERATING_MODE bits to determine how conversions are triggered, for more info on these modes refer to section 6.4 Device Functional Modes in the datasheet.

To help you with evaluation, we also have code examples that you can reference: https://www.ti.com/tool/download/TMAG5X73-CODE-EXAMPLE

Additionally, you can also evaluate this device using the TMAG5273EVM and the GUI, though you would also need to get the TI-SCB to interface with the GUI.

Best,

~Alicia

0 Adam Ho 4 months ago in reply to Alicia Rosenberger

Prodigy 20 points

Hi Alicia,

Thanks for your quick reply.

I have a question about INT pin.

In the host MCU side, can INT pin be an input pin?

When TMAG5273 has data to send, it will lower the INT pin to notify the host MCU. Is this correct?

And I don't know in this scenario, how to configure TMAG5273.

Best Regards,

Adam

+1 Alicia Rosenberger 4 months ago in reply to Adam Ho

TI__Genius 13670 points

Hi Adam,

Adam Ho said:
In the host MCU side, can INT pin be an input pin?

The INT pin, in this scenario, should be treated as an input pin by the MCU.

Adam Ho said:
When TMAG5273 has data to send, it will lower the INT pin to notify the host MCU. Is this correct?

Yes.

The TMAG5273 can be configured via I2C communication. I would recommend looking at the coed examples for how to do this.

Best,

~Alicia

0 Adam Ho 4 months ago in reply to Alicia Rosenberger

Prodigy 20 points

Hi Alicia,

Could you please answer my other question?

Thanks.

e2e.ti.com/.../tmag5273-how-to-configurate-register-to-use-int-pin-wake-up-host-mcu

0 Alicia Rosenberger 4 months ago in reply to Adam Ho

TI__Genius 13670 points

Hi Adam,

Sure. I'll go ahead and take a look.

Best,

~Alicia