grabber: work around windows numpy int peculiarity (same as a81c12de9)

2018-11-30 18:41:14 +08:00 · 2018-11-30 18:41:14 +08:00 · dce4f036db
parent 156afb48ee
commit dce4f036db
1 changed files with 1 additions and 1 deletions
--- a/artiq/coredevice/grabber.py
+++ b/artiq/coredevice/grabber.py
@ -23,7 +23,7 @@ class Grabber:
        count_width = min(31, 2*res_width + 16 - count_shift)
        # This value is inserted by the gateware to mark the start of a series of
        # ROI engine outputs for one video frame.
-        self.sentinel = int32(2**count_width)
+        self.sentinel = int32(int64(2**count_width))

    @kernel
    def setup_roi(self, n, x0, y0, x1, y1):