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

2.2.3 Debug Probe Connection: Isolation Jumper Block

The isolation jumper block at jumper J101 allows the user to connect or disconnect signals that cross from the XDS110 domain into the CC3235MOD target domain. This includes JTAG signals, application UART signals, and 3.3-V and 5-V power.

Reasons to open these connections:

  • To remove any and all influence from the XDS110 debug probe for high accuracy target power measurements
  • To control 3-V and 5-V power flow between the XDS110 and target domains
  • To expose the target MCU pins for other use than onboard debugging and application UART communication
  • To expose the programming and UART interface of the XDS110 so that it can be used for devices other than the onboard MCU.

Table 2-1 Isolation Block Connections
JumperDescription
BRDBoard Power. Supplies the board power from the onboard DC-DC converter. The board power includes the sensors, LED, and the OPAMP used to drive the ADC input.
GNDGround reference
5V5-V VBUS from USB
VBAT3.3-V rail, derived from VBUS in the XDS110 domain. Can also be used to measure the current flowing into the CC3235MOD.
RXBackchannel UART: The target CC3235MODSF receives data through this signal.
TXBackchannel UART: The target CC3235MODSF sends data through this signal.
RSTThis pin functions as the RST signal (active low).
TMSSerial wire data input (SWDIO) / JTAG test mode select (TMS)
TCKSerial wire clock input (SWCLK) / JTAG clock input (TCK)
TDOJTAG test data out
TDIJTAG test data in
VBUFFERUsed to power the level shifters located on the emulator side of the board. The level shifters can be powered by shorting this pin with a jumper. Removing the jumper enables low current measurement.