Merge "Make fault_isr better for what we do"
diff --git a/motors/core/mk20dx128.c b/motors/core/mk20dx128.c
index eef0488..07570b9 100644
--- a/motors/core/mk20dx128.c
+++ b/motors/core/mk20dx128.c
@@ -65,14 +65,12 @@
 
 void fault_isr(void) {
   FTM0_C0V = FTM0_C1V = FTM0_C2V = FTM0_C3V = FTM0_C4V = FTM0_C5V = 0;
+  FTM3_C0V = FTM3_C1V = FTM3_C2V = FTM3_C3V = FTM3_C4V = FTM3_C5V = 0;
   printf("fault_isr\n");
   while (1) {
     // keep polling some communication while in fault
     // mode, so we don't completely die.
     if (SIM_SCGC4 & SIM_SCGC4_USBOTG) usb_isr();
-    if (SIM_SCGC4 & SIM_SCGC4_UART0) uart0_status_isr();
-    if (SIM_SCGC4 & SIM_SCGC4_UART1) uart1_status_isr();
-    if (SIM_SCGC4 & SIM_SCGC4_UART2) uart2_status_isr();
   }
 }