Clarify spacecraft ID bit width in comments

Co-authored-by: Mikefly123 <[email protected]>

Author: Copilot

FprimeZephyrReference/project/config/CMakeLists.txt

@@ -5,7 +5,7 @@
 ####
 
 # Configure spacecraft ID (can be overridden via CMake option)
-set(FPRIME_SPACECRAFT_ID "0x0044" CACHE STRING "Spacecraft ID (10 bits) - default 0x0044 for development, use 0x00C1 for CI")
+set(FPRIME_SPACECRAFT_ID "0x0044" CACHE STRING "Spacecraft ID (10 bits, range 0x0000-0x03FF) - default 0x0044 for development, use 0x00C1 for CI")
 
 # Generate ComCfg.fpp from template with configured spacecraft ID
 configure_file(

FprimeZephyrReference/project/config/ComCfg.fpp.in

@@ -15,7 +15,7 @@ module ComCfg {
     # - spacecraftId
     # - TmFrameFixedSize
     # - potentially APID enum ?
-    constant SpacecraftId = @FPRIME_SPACECRAFT_ID@    # Spacecraft ID (10 bits)
+    constant SpacecraftId = @FPRIME_SPACECRAFT_ID@    # Spacecraft ID (10 bits, range 0x0000-0x03FF)
     constant TmFrameFixedSize = 248   # Needs to be at least COM_BUFFER_MAX_SIZE + (2 * SpacePacketHeaderSize) + 1
     constant AggregationSize = TmFrameFixedSize - 6 - 6 - 1 - 2  # 2 header (6) + 1 idle byte + 2 trailer bytes