phaser: add comment about get_dac_data

2020-09-07 16:06:16 +00:00 · 2020-09-07 16:06:16 +00:00 · e69bb0aeb3
parent 272dc5d36a
commit e69bb0aeb3
1 changed files with 3 additions and 0 deletions
--- a/artiq/coredevice/phaser.py
+++ b/artiq/coredevice/phaser.py
@ -223,6 +223,9 @@ class Phaser:
    def get_dac_data(self, ch) -> TInt32:
        """Get a sample of the current DAC data.

+        The data is split accross multiple registers and thus the data
+        is only valid if constant.
+
        :param ch: DAC channel pair (0 or 1)
        :return: DAC data as 32 bit IQ
        """