| David Brazdil | 0f672f6 | 2019-12-10 10:32:29 +0000 | [diff] [blame^] | 1 | What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_frequency |
| 2 | KernelVersion: |
| 3 | Contact: linux-iio@vger.kernel.org |
| 4 | Description: |
| 5 | Stores the PLL frequency in Hz for channel Y. |
| 6 | Reading returns the actual frequency in Hz. |
| 7 | The ADF4371 has an integrated VCO with fundamendal output |
| 8 | frequency ranging from 4000000000 Hz 8000000000 Hz. |
| 9 | |
| 10 | out_altvoltage0_frequency: |
| 11 | A divide by 1, 2, 4, 8, 16, 32 or circuit generates |
| 12 | frequencies from 62500000 Hz to 8000000000 Hz. |
| 13 | out_altvoltage1_frequency: |
| 14 | This channel duplicates the channel 0 frequency |
| 15 | out_altvoltage2_frequency: |
| 16 | A frequency doubler generates frequencies from |
| 17 | 8000000000 Hz to 16000000000 Hz. |
| 18 | out_altvoltage3_frequency: |
| 19 | A frequency quadrupler generates frequencies from |
| 20 | 16000000000 Hz to 32000000000 Hz. |
| 21 | |
| 22 | Note: writes to one of the channels will affect the frequency of |
| 23 | all the other channels, since it involves changing the VCO |
| 24 | fundamental output frequency. |
| 25 | |
| 26 | What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_name |
| 27 | KernelVersion: |
| 28 | Contact: linux-iio@vger.kernel.org |
| 29 | Description: |
| 30 | Reading returns the datasheet name for channel Y: |
| 31 | |
| 32 | out_altvoltage0_name: RF8x |
| 33 | out_altvoltage1_name: RFAUX8x |
| 34 | out_altvoltage2_name: RF16x |
| 35 | out_altvoltage3_name: RF32x |
| 36 | |
| 37 | What: /sys/bus/iio/devices/iio:deviceX/out_altvoltageY_powerdown |
| 38 | KernelVersion: |
| 39 | Contact: linux-iio@vger.kernel.org |
| 40 | Description: |
| 41 | This attribute allows the user to power down the PLL and it's |
| 42 | RFOut buffers. |
| 43 | Writing 1 causes the specified channel to power down. |
| 44 | Clearing returns to normal operation. |