SWRU548C February   2019  – September 2021 CC3235MODAS , CC3235MODASF , CC3235MODS , CC3235MODSF

 

  1. 1Introduction
    1. 1.1 CC3235MODSF LaunchPad™
    2. 1.2 LAUNCHCC3235MOD Key Features
    3. 1.3 What's Included
      1. 1.3.1 Kit Contents
      2. 1.3.2 Software Examples
    4. 1.4 REACH Compliance
    5. 1.5 Regulatory Compliance
    6. 1.6 First Steps: Out-of-Box Experience
      1. 1.6.1 Connecting to the Computer
      2. 1.6.2 Running the Out-of-Box Experience
    7. 1.7 Next Steps: Looking into the Provided Code
    8. 1.8 Trademarks
  2. 2Hardware
    1. 2.1 Block Diagram
    2. 2.2 Hardware Features
      1. 2.2.1  Key Benefits
      2. 2.2.2  XDS110-Based Onboard Debug Probe
      3. 2.2.3  Debug Probe Connection: Isolation Jumper Block
      4. 2.2.4  Application (or "Backchannel") UART
      5. 2.2.5  JTAG Headers
      6. 2.2.6  Using the XDS110 Debug Probe with a Different Target
      7. 2.2.7  Power Connections
        1. 2.2.7.1 XDS110 USB Power
        2. 2.2.7.2 BoosterPack Plug-in Module and External Power Supply
      8. 2.2.8  Reset Pullup Jumper
      9. 2.2.9  Clocking
      10. 2.2.10 I2C Connection
        1. 2.2.10.1 Default I2C Addresses
      11. 2.2.11 Sense on Power (SOP)
      12. 2.2.12 Push-Buttons and LED Indicators
    3. 2.3 Electrical Characteristics
    4. 2.4 Antenna Characteristics
    5. 2.5 BoosterPack Plug-in Module Pinout
  3. 3Layout Guidelines
    1. 3.1 LAUNCHCC3235MOD Board Layout
    2. 3.2 General Layout Recommendations
    3. 3.3 RF Layout Recommendations
    4. 3.4 Antenna Placement and Routing
    5. 3.5 Transmission Line Considerations
  4. 4Operational Setup and Testing
    1. 4.1 Measuring the CC3235MOD Current Draw
      1. 4.1.1 Low-Current Measurement with USB Power (<1 mA)
      2. 4.1.2 Active Current Measurements
    2. 4.2 RF Connections
      1. 4.2.1 AP Connection Testing
    3. 4.3 Design Files
      1. 4.3.1 Hardware Design Files
    4. 4.4 Software
  5. 5Development Environment Requirements
    1. 5.1 CCS
    2. 5.2 IAR
  6. 6Additional Resources
    1. 6.1 CC3235MODx Product Page
    2. 6.2 Download CCS or IAR
    3. 6.3 SimpleLink™ Academy for CC3235 SDK
    4. 6.4 TI E2E Support Forums
  7. 7Assembly Drawing and Schematics
    1. 7.1 Assembly Drawing
    2. 7.2 Schematics
      1.      A Manual Information to the End User
        1.       A.1 End User Manual
        2.       A.2 RF Function and Frequency Range
        3.       A.3 FCC and IC Certification and Statement
          1.        A.3.1 FCC
          2.        A.3.2 CAN ICES-3(B) and NMB-3(B) Certification and Statement
          3.        A.3.3 End Product Labeling
          4.        A.3.4 Device Classifications
          5.        A.3.5 FCC Definitions
          6.        A.3.6 Simultaneous Transmission Evaluation
        4.       A.4 EU Certification and Statement
          1.        A.4.1 RF Exposure Information (MPE)
          2.        A.4.2 Simplified DoC Statement
            1.         A.4.2.1 CC3235MODx and CC3235MODAx Modules
            2.         A.4.2.2 LAUNCHCC3235MOD
          3.        A.4.3 Waste Electrical and Electronic Equipment (WEEE)
          4.        A.4.4 OEM and Host Manufacturer Responsibilities
          5.        A.4.5 Antenna Specifications
        5.       A.5 CC3235MODx Approved Antennas
          1.        B Revision History

2.2.10 I2C Connection

The board features an accelerometer and a temperature sensor for the out-of-box demo. These are connected to the I2C bus, and can be isolated using the jumpers provided (shown as yellow jumpers J23 and J24 in Figure 2-12).

GUID-1BF03D71-1A10-45B8-A3B3-782F2920A201-low.pngFigure 2-12 I2C Connections

 

By removing J23 and J24, the accelerometer and the temperature sensors are isolated from the I2C bus. This measure also removes the I2C pullup resistors from the sensor side of the circuit, and therefore any connection to the circuit requires the user to install external pullup resistors.

Table 2-4 lists the I2C jumper definitions.

Table 2-4 I2C Jumper Definitions
ReferenceUseComments
J23I2C SCLPopulated: CC3235MOD SCL connected to onboard sensors with pullup
Open: CC3235MOD SCL disconnected from onboard sensors
J24I2C SDAPopulated: CC3235MOD SDA connected to onboard sensors with pullup
Open: CC3235MOD SDA disconnected from onboard sensors