diff --git a/BSP/root-fs/rootfs/usr/share/adc/adc.sh b/BSP/root-fs/rootfs/usr/share/adc/adc.sh
index 970e9ddf8..051974a12 100755
--- a/BSP/root-fs/rootfs/usr/share/adc/adc.sh
+++ b/BSP/root-fs/rootfs/usr/share/adc/adc.sh
@@ -18,6 +18,7 @@ sleep ${DELAY}
 
 echo "insert adc ko"
 mem bit 0xF0020074 3 0 > /dev/null 2>&1 
+sleep ${DELAY}
 insmod /lib/modules/$KERVER/kernel/drivers/iio/industrialio.ko
 insmod /lib/modules/$KERVER/kernel/drivers/iio/adc/nvt_adc.ko
 mem bit 0xF0020074 3 1 > /dev/null 2>&1