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phaser: clarify J1 termination; scope configuration 

* spacing, spelling, wording

Signed-off-by: Robert Jordens <rj@m-labs.hk>
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Joe Britton 2017-01-11 17:32:36 -05:00 committed by Robert Jordens
parent 6805feb494
commit 93a71b9f77
1 changed files with 2 additions and 2 deletions
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README_PHASER.rst
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@ -88,8 +88,8 @@ Setup
* Refer to the ARTIQ documentation to configure an IP address and other settings for the transmitter device. * Refer to the ARTIQ documentation to configure an IP address and other settings for the transmitter device.
If the board was running stock ARTIQ before, the settings will be kept. If the board was running stock ARTIQ before, the settings will be kept.
* A 300 MHz clock of roughly 10 dBm (0.2 to 3.4 V peak-to-peak into 50 Ohm) must be connected to the AD9154-FMC-EBZ J1. * A 300 MHz clock of roughly 10 dBm (0.2 to 3.4 V peak-to-peak into 50 Ohm) must be connected to the AD9154-FMC-EBZ J1. The input is 50 Ohm terminated. The RTIO clock, DAC deviceclock, FPGA deviceclock, and SYSREF are derived from this signal.
The RTIO clock, DAC deviceclock, FPGA deviceclock, and SYSREF are derived from this signal. * Configure an oscilliscope to trigger at 0.5 V on rising edge of ttl_sma (user_gpio_n on the KC705 board). Monitor DAC0 (J17) on the oscilloscope set for 100 mV/div and 200 ns/div.
* An example device database, several status and test scripts are provided in ``artiq/examples/phaser/``. :: * An example device database, several status and test scripts are provided in ``artiq/examples/phaser/``. ::
cd artiq/examples/phaser cd artiq/examples/phaser