Changes between Version 13 and Version 14 of HardwareUsersGuides/RadioBoard_v1.4/Usage/TxDCOffset


Ignore:
Timestamp:
Feb 21, 2008, 11:32:50 AM (16 years ago)
Author:
murphpo
Comment:

--

Legend:

Unmodified
Added
Removed
Modified

  • HardwareUsersGuides/RadioBoard_v1.4/Usage/TxDCOffset

    v13 v14  
    1111The residual DC offset due to component variations can be estimated using a special calibration mode of the radio board. During calibration, the algorithm estimates DC offsets for the I and Q channels on a given radio board. These values are then stored to the radio board's EEPROM. Once stored, the DC calibration values can be read by user applications each time the board is used.
    1212
    13 ==== EEPROM Initialization ====
     13==== Radio Calibration ====
    1414
    15 Before performing this calibration process, the EEPROM on your radio board must be initialized. This process only needs to be completed once and is something we generally complete before shipping boards. Follow these steps to check your EEPROM:
    16 
    17  1. Downoad this configuration file: [attachment:wiki:HardwareUsersGuides/RadioBoard_v1.4/Usage/TxDCOffset/Files:EEPROM_Initialize.bit?format=raw EEPROM_Initialize.bit]
    18  1. Connect a serial cable to the FPGA board and set your terminal emulator to 57600bps
    19  1. Power on the FPGA board
    20  1. Configure the FPGA using EEPROM_Initialize.bit
    21  1. Follow the directions printed on your terminal to initialize your radio board's EEPROM
    22 
    23 ==== Radio Calibration ====
     15Every WARP Radio is calibrated before shipment. You can re-calibrate your radios if desired, using this procedure.
    2416
    2517The Tx DCO calibration algorithm is not publically available. However, we do distribute an FPGA configuration file which executes the calibration process automatically.