--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/target-utils/simagent/timeout.h	Fri Mar 12 20:55:36 2021 +0000
@@ -0,0 +1,11 @@
+/*
+ * This header file defines the loop-count timeout value that should
+ * be passed to the rx_sim_byte() function.  By the spec we have to wait
+ * 9600 etu's; at 3.25 MHz SIM clock and the default slow mode (no speed
+ * enhancement) this 9600 etu number translates to about 1.10 s.
+ *
+ * The constant defined here has been calibrated empirically; the measured
+ * timeout is about 1.38 s, giving us reasonable safety margin.
+ */
+
+#define	SIM_WAIT_TIMEOUT	6000000