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resources:tools-software:linux-drivers:iio-dac:ad5770r [18 Jul 2018 15:12] – [Driver testing] Mircea Caprioruresources:tools-software:linux-drivers:iio-dac:ad5770r [18 Jul 2018 15:25] – [Driver testing] Mircea Caprioru
Line 183: Line 183:
  
 **I** = //out_current0_raw * out_current0_scale// = 5000 * 0,018310546 = **91,55273 //mA//** **I** = //out_current0_raw * out_current0_scale// = 5000 * 0,018310546 = **91,55273 //mA//**
 +
 +=== Enable power down mode for the device ===
 +
 +/sys/bus/iio/devices/iio:deviceX/out_currentY_powerdown
 +
 +**Description:**\\
 +Writing 1 causes channel Y to enter power down mode. Clearing returns to
 +normal operation.
 +
 +<WRAP box bggreen><wrap info>This specifies any shell prompt running on the target</wrap>
 +<xterm>
 +root@raspberrypi:/sys/bus/iio/devices/iio:device0# echo 1 > out_current0_powerdown 
 +root@raspberrypi:/sys/bus/iio/devices/iio:device0# cat out_current0_powerdown
 +1
 +root@raspberrypi:/sys/bus/iio/devices/iio:device0# echo 0 > out_current0_powerdown
 +root@raspberrypi:/sys/bus/iio/devices/iio:device0# cat out_current0_powerdown
 +0
 +</xterm></WRAP>
 +
 +=== Show available filter frequencies ===
 +
 +/sys/bus/iio/devices/iio:deviceX/out_current_filter_low_pass_3db_frequency_available
 +
 +**Description:**\\
 +Contains available filter frequencies.
 +
 +<WRAP box bggreen><wrap info>This specifies any shell prompt running on the target</wrap>
 +<xterm>
 +root@raspberrypi:/sys/bus/iio/devices/iio:device0# cat out_current_filter_low_pass_3db_frequency_available 
 +153 357 715 1400 2800 262000
 +</xterm></WRAP>
 +
 +=== Set channel Y filter frequency ===
 +
 +/sys/bus/iio/devices/iio:deviceX/out_current0_filter_low_pass_3db_frequency
 +
 +**Description:**\\
 +Write filter value to channel Y.
 +
 +<WRAP box bggreen><wrap info>This specifies any shell prompt running on the target</wrap>
 +<xterm>
 +root@raspberrypi:/sys/bus/iio/devices/iio:device0# cat out_current0_filter_low_pass_3db_frequency 
 +262000
 +root@raspberrypi:/sys/bus/iio/devices/iio:device0# echo 1000 > out_current0_filter_low_pass_3db_frequency 
 +root@raspberrypi:/sys/bus/iio/devices/iio:device0# cat out_current0_filter_low_pass_3db_frequency
 +1400
 +</xterm></WRAP>
 ====== More Information ====== ====== More Information ======
  
 {{page>software:linux:docs:iio:iio_snippets#iio pointers&noheader&firstseconly&noeditbtn}} {{page>software:linux:docs:iio:iio_snippets#iio pointers&noheader&firstseconly&noeditbtn}}
resources/tools-software/linux-drivers/iio-dac/ad5770r.txt · Last modified: 07 Jan 2021 08:47 by Ioana Chelaru

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