diff --git a/sampling.c b/sampling.c
index 2adcea6..118936e 100644
--- a/sampling.c
+++ b/sampling.c
@@ -3,6 +3,7 @@
 #include "inc/tm4c1294ncpdt.h"
 #include "driverlib/adc.h"
 #include "sysctl_pll.h"
+#include "inc/hw_types.h"
 
 
 #define ADC_BUFFER_SIZE 2048 // size must be a power of 2
@@ -15,7 +16,8 @@ volatile uint32_t gADCErrors = 0; // number of missed ADC deadlines
 void ADC_ISR(void)
 {
     // clear ADC1 sequence0 interrupt flag in the ADCISC register
-    <...>;
+    HWREGBITW(ADC1_ISC_R, 16) = 1;
+
     // check for ADC FIFO overflow
     if(ADC1_OSTAT_R & ADC_OSTAT_OV0) {
     gADCErrors++; // count errors
@@ -23,7 +25,7 @@ void ADC_ISR(void)
     }
     gADCBufferIndex = ADC_BUFFER_WRAP(gADCBufferIndex + 1)
     // read sample from the ADC1 sequence 0 FIFO
-    gADCBuffer[gADCBufferIndex] = <...>;
+    gADCBuffer[gADCBufferIndex] = ADC1_SSFIFO0_R & 0xFFF;
 }