From e69bb0aeb3c77c66649fae7228fe57a51f02f697 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Robert=20J=C3=B6rdens?= <rj@quartiq.de>
Date: Mon, 7 Sep 2020 16:06:16 +0000
Subject: [PATCH] phaser: add comment about get_dac_data

---
 artiq/coredevice/phaser.py | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/artiq/coredevice/phaser.py b/artiq/coredevice/phaser.py
index 7eff5b51d..fec71b1c9 100644
--- 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
         """