diff --git a/main.c b/main.c
index 8da9f8d..634b4cb 100644
--- a/main.c
+++ b/main.c
@@ -106,12 +106,10 @@ int main(void) {
         int32_t adc_current_index;
         int32_t j;
         if (drawRequested) {
-            IntMasterDisable(); // critical section
             adc_current_index = gADCBufferIndex - 128;
             for (j=0; j<LOCAL_BUF_LEN; j++) {
                 local_adc_buffer[j] = gADCBuffer[ADC_BUFFER_WRAP(adc_current_index + j)];
             }
-            IntMasterEnable();
             drawRequested = 0;
         }