diff options
Diffstat (limited to 'host/docs')
| -rw-r--r-- | host/docs/calibration.dox | 18 | ||||
| -rwxr-xr-x | host/docs/res/TRRS.png | bin | 0 -> 2955 bytes | |||
| -rw-r--r-- | host/docs/usrp_e3x0.dox | 5 |
3 files changed, 18 insertions, 5 deletions
diff --git a/host/docs/calibration.dox b/host/docs/calibration.dox index 603ae22e4..eecb7af5c 100644 --- a/host/docs/calibration.dox +++ b/host/docs/calibration.dox @@ -57,15 +57,23 @@ daughterboard's EEPROM: : \subsection calibration_data Calibration Data -Calibration files are stored in the user's home/application directory. -They can easily be moved from machine to another by copying the "cal" -directory. Re-running a calibration utility will replace the existing -calibration file. The old calibration file will be renamed so it may be -recovered by the user. +By default, calibration files are stored in the user's home/application +directory: - **Linux:** `${HOME}/.uhd/cal/` - **Windows:** `%APPDATA%\.uhd\cal\` +If you would like to specify a custom directory, you can do so with the +`$UHD_CONFIG_DIR` environment variable: + +- **Custom (any OS):** `${UHD_CONFIG_DIR}/.uhd/cal/` + +Calibration files can easily be moved from one machine to another by copying the +"cal" directory. Re-running a calibration utility will replace the existing +calibration file. The old calibration file will be renamed so it may be +recovered by the user. + + \subsection ignore_cal_file Ignoring Calibration Files At runtime, the user can choose to ignore a daughterboard's calibration file by adding "ignore-cal-file" to the arguments. With the UHD API, it can be done as follows: diff --git a/host/docs/res/TRRS.png b/host/docs/res/TRRS.png Binary files differnew file mode 100755 index 000000000..78619c869 --- /dev/null +++ b/host/docs/res/TRRS.png diff --git a/host/docs/usrp_e3x0.dox b/host/docs/usrp_e3x0.dox index 68ffc0122..b55fa1054 100644 --- a/host/docs/usrp_e3x0.dox +++ b/host/docs/usrp_e3x0.dox @@ -362,6 +362,11 @@ For more advanced IMU based applications please refer to the <a href="https://gi Please see the \ref page_gpio_api for information on configuring and using the GPIO bus. \subsection e3x0_hw_audio Audio connectors +The E3x0 2.5 mm Audio Jack TRRS pins are assigned as follows: Tip=Mic, Ring1=Right, Ring2=Left, Sleeve=GND. + +\image html TRRS.png "Audio Jack" + +The Left/Right audio outputs are compatible with typical low-impedance headphones (16 to 32 Ohms). The Microphone pin provides approximately 2 mA bias at 2.2 V when not suspended. A variety of pin configurations can be found on commonly available headsets, so an adapter may be required. \subsection e3x0_hw_chipscope Debugging custom FPGA designs with Xilinx Chipscope |
