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Original question:

LAUNCHXL-F28069M: Use with Hall Effect Sensors

LAUNCHXL-F28379D: Hall sensor Integration

Prashaant YJ
Prodigy 45 points
Part Number: LAUNCHXL-F28379D


I have LAUNCHXL-F28379D board. I want to use it control a BLDC motor which comes with a hall sensor. 

The hall sensor specs is as follows - 

❖ Hall Sensor arrangement:-(Three sensors at 120 electrical degrees)
❖ Type:- Bipolar Hall Effect Digital Position Sensor IC (SS41)
❖ Wide operating Voltage Range (Volts):- 4.5 to 24
❖ Very low current consumption (Mille Amperes):- 20

I have noticed that the voltage levels are somewhere around 5V for the same

I would like to know how to interface it with the Development board. I think eCAP module is the correct peripheral that has to be interfaced with hall sensor. Please let me know to proceed further with the electrical connection.

  • 0
    TI__Guru** 116140 points

    Yes, there ia level shift IC to convert the 5V hall output signals to +3.3V for C2000 controller. So you can connect the 5V hall sensor to the header J14 or J15 on the LAUNCHXL-F28379D board. All of the GPIOs can be configured to support the ECAP by using the XBAR. You may take a look at the TRM of the F28379 and the schematic of LAUNCHXL-F28379D board, to use either J15 or J15 for connecting the hall sensor.

  • 0 in reply to Yanming Luo
    Prodigy 45 points

    Thank you. So I checked out few level shift ICs. They all seem to come with I2C connection. So are there any suggestions from your side? And do I have to worry about any sort of latency that could occur ? 

  • 0 in reply to Prashaant YJ
    TI__Guru** 116140 points

    You may refer to the used IC on LAUNCHXL-F28379D board, the voltage level shift IC should be enough for this. You should select the right voltage level shift IC according the output of the hall sensor, tranfer the output to +3.3V for C2000 controller.