1 files changed, 2 insertions, 0 deletions

diff --git a/firmware/drivers/adc.c b/firmware/drivers/adc.c
index 1ebac066e7..d00f89958a 100644
--- a/firmware/drivers/adc.c
+++ b/firmware/drivers/adc.c
@@ -123,6 +123,7 @@ static int channelnum[] =
 
 unsigned short adc_scan(int channel)
 {
+    int level = set_irq_level(HIGHEST_IRQ_LEVEL);
     unsigned char data;
     
     pcf50606_write(0x2f, 0x80 | (channelnum[channel] << 1) | 1);
@@ -130,6 +131,7 @@ unsigned short adc_scan(int channel)
 
     adcdata[channel] = data;
 
+    set_irq_level(level);
     return data;
 }
 #else