SPRUJ22C November   2021  – September 2024 AWR2944

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Key Features
    3. 1.3 What’s Included
      1. 1.3.1 Kit Contents
      2. 1.3.2 mmWave Out-of-Box (OOB) Demo
  6. 2Hardware
    1. 2.1  Block Diagram
    2. 2.2  PCB Handling Recommendations
    3. 2.3  Power Connections
    4. 2.4  Connectors
      1. 2.4.1 MIPI 60-Pin Connector (J19)
      2. 2.4.2 Debug Connector-60 pin (J7)
      3. 2.4.3 CAN-A Interface Connector (J3)
      4. 2.4.4 CAN-B Interface Connector (J2)
      5. 2.4.5 Ethernet Ports (J4 and J9)
        1. 2.4.5.1 ECOs to Enable the DP83TC812R (AWR2944EVM) or DP83TG720S (AWR2944PEVM) PHY
          1. 2.4.5.1.1 ECO needed to source 25MHz clock from AWR2944P to DP83TG720S
      6. 2.4.6 USB Connectors (J8, J10)
      7. 2.4.7 OSC_CLKOUT Connector (J14)
      8. 2.4.8 PMIC SPI Connector (J16) (DNP)
      9. 2.4.9 Voltage Rails Ripple Measurement Connectors (J1, J5) (DNP)
    5. 2.5  Antenna
    6. 2.6  PMIC
    7. 2.7  On-Board Sensors
    8. 2.8  PC Connection
      1. 2.8.1 XDS110 Interface
      2. 2.8.2 FTDI Interface
    9. 2.9  Connecting the AWR2944EVM/AWR2944PEVM to the DCA1000 EVM
    10. 2.10 Jumpers, Switches, and LEDs
      1. 2.10.1 Switches
      2. 2.10.2 Sense On Power (SOP) Jumpers (J17, J18, J20)
      3. 2.10.3 I2C Connections
      4. 2.10.4 Push Buttons
      5. 2.10.5 LEDs
  7. 3Software
    1. 3.1 Software, Development Tools, and Example Code
  8. 4Hardware Design Files
    1. 4.1 Design Files
  9. 5Compliance Information
    1. 5.1 Requirements for Operating in the EU and UK regions
  10. 6Additional Information
    1.     Trademarks
  11. 7Revision History

2.8.2 FTDI Interface

J10 provides access to the onboard FTDI ports. This provides the following interfaces to the PC:

  • FTDI Port A -> SPI.
  • FTDI Port B-> Host INTR signal.
  • FTDI Port C -> NRESET control signal.
  • FTDI Port D -> SOP0, SOP1 control signals.

When the USB is connected for the first time to the PC, a possibility is that Windows® does not recognize the device. This is indicated in the device manager with yellow exclamation marks, as shown in Figure 2-23.

AWR2944EVM, AWR2944PEVM Uninstalled FTDI Drivers Figure 2-23 Uninstalled FTDI Drivers

To install the devices, download the latest FTDI drivers available in the mmwave SDK package. Right click on these devices, and update the drivers by pointing to the location where the FTDI drivers were installed (C:\ti\mmwave_sdk_<version_number>\tools\ftdi). This must be done for all four COM ports. When all four COM ports are installed, the device manager recognizes these devices and indicates the COM port numbers, as shown in Figure 2-24.

AWR2944EVM, AWR2944PEVM Installed FTDI Drivers Figure 2-24 Installed FTDI Drivers