From 870020bc9f231724bc741a8cbbe5c27db4c9f756 Mon Sep 17 00:00:00 2001
From: occheung <dc@m-labs.hk>
Date: Mon, 18 Sep 2023 19:55:16 -0700
Subject: [PATCH] adc: use a generous upper bound

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

diff --git a/artiq/coredevice/shuttler.py b/artiq/coredevice/shuttler.py
index 75c970033..97d0ee6f5 100644
--- a/artiq/coredevice/shuttler.py
+++ b/artiq/coredevice/shuttler.py
@@ -224,6 +224,9 @@ class ADC:
         self.bus.set_config_mu(
             ADC_SPI_CONFIG | spi.SPI_END, 32, SPIT_ADC_WR, CS_ADC)
         self.bus.write(addr << 24 | (data & 0xffffff))
+
+        delay(100*us)
+        adc_code = self.read24(_AD4115_REG_DATA)
         return ((adc_code / (1 << 23)) - 1) * 2.5 / 0.1
     
     @kernel