diff --git a/src/hall_driver.c b/src/hall_driver.c
index bac7b88..5281165 100644
--- a/src/hall_driver.c
+++ b/src/hall_driver.c
@@ -34,7 +34,7 @@ void ADCConfig(void) {
     ADC_InitStructure.ADC_ContinuousConvMode = DISABLE;
     ADC_InitStructure.ADC_ExternalTrigConv = ADC_ExternalTrigInjecConv_None;
     ADC_InitStructure.ADC_DataAlign = ADC_DataAlign_Right;
-    ADC_InitStructure.ADC_NbrOfChannel = 2;
+    ADC_InitStructure.ADC_NbrOfChannel = 4;
     ADC_Init(ADC1, &ADC_InitStructure);
 
     ADC_InjectedSequencerLengthConfig(ADC1, 4);
@@ -72,8 +72,4 @@ void ADC1_IRQHandler() {
         adcFlag = 1;
         ADC_ClearITPendingBit(ADC1, ADC_IT_JEOC);
     }
-    if (ADC_GetITStatus(ADC1, ADC_IT_JEOC) == SET) {
-        adcFlag = 1;
-        ADC_ClearITPendingBit(ADC1, ADC_IT_JEOC);
-    }
 }