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TMAG3001: Wait State Timeout During Latched Interrupt

Part Number: TMAG3001

Is there a deadline to access sensor data through I2C after a latched interrupt generated as a result of a conversation complete event in wake and sleep mode?

Figure 6-4 of the datasheet suggests a 64us wait state timeout during a Fixed Width IRQ. Figure 6-5, on the other hand, seems to suggest the sensor waits indefinitely with I2C active (not in sleep state) until the controller grabs the data. We are experiencing something different, and we appreciate clarification. The content of INT_Config_1 register for our use is 0x84 and Device_Config_2 register is 0x03. Thank you.

  • Hi Mustafa,

    Thank you for posting to the Sensors forum!

    Could you share a screen capture of the behavior that you are seeing?

    When I programmed a sample that I have, I see the following, which is described in the datasheet:

    I program the device to be in W&S mode with latched interrupts when conversion is completed, which is shown below.

    Best,

    ~Alicia

  • Hi Mustafa,

    I am going to close this thread for now due to inactivity. Please let feel free to reopen this thread or ask a related question (if this thread has been locked) if you have any additional questions. If your question has been resolved, please mark this thread a resolved.

    Best,

    ~Alicia