Add changelog notes for v1.3.0 release

CHANGELOG.md

@@ -2,6 +2,31 @@
 
 This document summarizes the changes introduced to the code base for each release.
 
+## v1.3.0
+
+**Timing Manager & Scheduler**
+
+- Create new Timing Manager IP to synchronize sensors and control with PWM carrier
+- Convert scheduler times from `uint32_t` to `double` type, added tolerance margin
+
+**Sensor Interfaces**
+
+- Update sensor interfaces for Timing Manager compatibility
+- Rename AMDS IP/driver from `motherboard` to `amds`
+- Remove `SYNC_TX` interrupt from AMDS IP
+- Add/change behavior of AMDS IP debug counters
+
+**FPGA Changes**
+
+- Remove FPGA Timer IP, as interrupts are now generated by Timing Manager
+- Enable Inverter IP to flush duty ratios immediately, at next peak/valley, or next trigger
+- Replace hardcoded AXI interface addresses with definitions from `xparameters.h`
+
+**Miscellaneous**
+
+- Convert any commands using 0-indexing for hardware port numbers to also be 1-indexed
+- Remove obsolete driver documentation
+
 ## v1.2.0
 
 - Add support for REV F hardware