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I2C Register Reading Error

Ashwin Hareesh
Prodigy 90 points

Other Parts Discussed in Thread: CC2650

I'm currently trying to access the I2C registers within the CC2650 Sensor Tag through Code Composer Studio. Every time I connect my Sensor Tag and try to view the Registers, CCS says that it is unable to read the registers. I'm trying to configure some features of a sensor by accessing the I2C registers. I have attached a picture of what I am seeing below. Any suggestions on how to fix this? Thank you.

  • Guru 92251 points

    Ashwin Hareesh said:
    Every time I connect my Sensor Tag and try to view the Registers, CCS says that it is unable to read the registers.

    From a quick look at the CC13xx, CC26xx SimpleLink Wireless MCU Technical Reference Manual SWCU117F I think you need to enable the serial power domain and enable the I2C module in PRCM before you can access the I2C registers. See step 1 in section 21.4 Initialization and Configuration in the TRM for details.