SWRA794B June   2024  – February 2025 AWRL1432 , AWRL6432 , AWRL6844 , IWRL1432 , IWRL6432 , IWRL6432AOP , IWRL6844

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Acronyms Used in This Document
  5. 2 Introduction
  6. 3 Purpose of Calibrations
  7. 4 Typical Stages of Calibration
    1. 4.1 Factory Calibrations
    2. 4.2 APLL Calibration
    3. 4.3 Runtime Calibrations
  8. 5 List and Description of Calibrations
    1. 5.1 APLL Hardware Calibration
    2. 5.2 Synthesizer VCO Calibration
    3. 5.3 LO Distribution Calibration
    4. 5.4 Power Detector Calibration
    5. 5.5 TX Power Calibration
    6. 5.6 RX Gain Calibration
    7. 5.7 RX IFA Calibration
  9. 6 Software configurability of Calibrations
    1. 6.1 Software Sequence for Factory Calibrations
      1. 6.1.1 mmWaveLink Initialization
      2. 6.1.2 FECSS Power-On
      3. 6.1.3 APLL Power-On and Hardware Calibration
      4. 6.1.4 RF Channel Configuration
      5. 6.1.5 Trigger Factory Calibrations
      6. 6.1.6 Factory Calibration Data Store
      7. 6.1.7 APLL Power-Off
      8. 6.1.8 FECSS Power-Off
      9. 6.1.9 mmWaveLink De-Initialization
    2. 6.2 Software Sequence for Runtime (In-Field) Operation
      1. 6.2.1 Initialization
        1. 6.2.1.1 mmWaveLink Initialization
        2. 6.2.1.2 FECSS Power-On
        3. 6.2.1.3 APLL Power-On and Hardware Calibration
        4. 6.2.1.4 Factory Calibration Data Restore
        5. 6.2.1.5 Temperature Sensor Configuration
      2. 6.2.2 Profile Configuration
        1. 6.2.2.1 Profile Common Configuration
        2. 6.2.2.2 Profile Time Configuration
        3. 6.2.2.3 Frame Configuration
      3. 6.2.3 Runtime Calibration
        1. 6.2.3.1 Temperature Sensor Trigger
        2. 6.2.3.2 Runtime Calibration Configure and Trigger
        3. 6.2.3.3 Tx CLPC Calibration
      4. 6.2.4 Frame Trigger
        1. 6.2.4.1 Sensor Start
        2. 6.2.4.2 Sensor Status
        3. 6.2.4.3 Sensor Stop
      5. 6.2.5 Deep Sleep Entry and Exit
      6. 6.2.6 De-Initialization
  10. 7  Recommended Calibration Sequence: OLPC vs CLPC
    1. 7.1 Safety Application With OLPC Tx Power Cal - xWRLx432 and xWRL68xx
    2. 7.2 Non-Safety Application With OLPC Tx Power Cal - xWRLx432 and xWRL68xx
    3. 7.3 Application With CLPC Tx Power Cal - xWRLx432
    4. 7.4 Application With CLPC Tx Power Cal - xWRL68xx
  11. 8 Summary
  12. 9 References
  13. 10Revision History

6.2.3.3 Tx CLPC Calibration

When rl_fecssRfRuntimeCal API is triggered to perform runtime calibrations, the FECSS performs Tx power calibration in OLPC mode. For back-offs greater than 3dB, TI recommends to perform the calibration in CLPC mode using rl_fecssRlRuntimeTxClpcCal to get better accuracy in Tx output power.

This rl_fecssRlRuntimeTxClpcCal API can be used to calibrate the Tx channels during in-field operation. The API calibrates Tx channels using CLPC algorithm and immediately applies the results to the hardware registers.