diff --git a/src/eis_shield/eis_misc.c b/src/eis_shield/eis_misc.c
index 8f2e60ca9489fd477fe8257b75de685e1f30a9e8..419e2a94a6379834d79803a9c5abdd43d71fd858 100644
--- a/src/eis_shield/eis_misc.c
+++ b/src/eis_shield/eis_misc.c
@@ -20,35 +20,35 @@ void eis_set_gain(uint8_t gain){
     delay_ms(30);
     switch (gain) {
         case EIS_IV_GAIN_0:
-            ds4550_set_pins(0b110000110, 0b111000000);
+            ds4550_set_pins(0b110000000, 0b111000000);
             printf("#INFO: EIS gain 0\r\n");
             break;
         case EIS_IV_GAIN_100:
-            ds4550_set_pins(0b111000110, 0b111000000);
+            ds4550_set_pins(0b111000000, 0b111000000);
             printf("#INFO: EIS gain 100\r\n");
             break;
         case EIS_IV_GAIN_3k:
-            ds4550_set_pins(0b101000110, 0b111000000);
+            ds4550_set_pins(0b101000000, 0b111000000);
             printf("#INFO: EIS gain 3k\r\n");
             break;
         case EIS_IV_GAIN_30k:
-            ds4550_set_pins(0b100000110, 0b111000000);
+            ds4550_set_pins(0b100000000, 0b111000000);
             printf("#INFO: EIS gain 30k\r\n");
             break;
         case EIS_IV_GAIN_300k:
-            ds4550_set_pins(0b011000110, 0b111000000);
+            ds4550_set_pins(0b011000000, 0b111000000);
             printf("#INFO: EIS gain 300k\r\n");
             break;
         case EIS_IV_GAIN_3M:
-            ds4550_set_pins(0b010000110, 0b111000000);
+            ds4550_set_pins(0b010000000, 0b111000000);
             printf("#INFO: EIS gain 3M\r\n");
             break;
         case EIS_IV_GAIN_30M:
-            ds4550_set_pins(0b001000110, 0b111000000);
+            ds4550_set_pins(0b001000000, 0b111000000);
             printf("#INFO: EIS gain 30M\r\n");
             break;
         case EIS_IV_GAIN_100M:
-            ds4550_set_pins(0b000000110, 0b111000000);
+            ds4550_set_pins(0b000000000, 0b111000000);
             printf("#INFO: EIS gain 100M\r\n");
             break;
         default:
@@ -69,19 +69,19 @@ void eis_set_ref(uint8_t ref){
     delay_ms(30);
     switch (ref) {
         case EIS_REF_CELL:
-            ds4550_set_pins(0b000000000, 0b000110000);
+            ds4550_set_pins(0b000001101, 0b000111111);
             printf("#INFO: EIS REF RE\r\n");
             break;
         case EIS_REF_R1:
-            ds4550_set_pins(0b000010000, 0b000110000);
+            ds4550_set_pins(0b000010110, 0b000111111);
             printf("#INFO: EIS REF R1\r\n");
             break;
         case EIS_REF_R2:
-            ds4550_set_pins(0b000100000, 0b000110000);
+            ds4550_set_pins(0b000100110, 0b000111111);
             printf("#INFO: EIS REF R2\r\n");
             break;
         case EIS_REF_PARALLEL:
-            ds4550_set_pins(0b000110000, 0b000110000);
+            ds4550_set_pins(0b000110110, 0b000111111);
             printf("#INFO: EIS REF R1+2\r\n");
             break;