flatbuffer base

flatbuffers/config/clock.fbs

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+namespace hmmmm.config;
+
+// Global emulator clock constraints.
+table ClockConfig {
+    // Maximum emulated ticks per real second.
+    // 0 = unlimited (run as fast as possible).
+    limiter: uint64;
+}
+
+// Clock source and frequency relationship for one device.
+// Devices form a clock tree: each node derives its frequency from its src.
+table DeviceClockConfig {
+    src:        string;         // id of the parent device; empty = root clock
+    divider:    uint32 = 1;
+    multiplier: uint32 = 1;
+}