Tools: FilterTestTool - add missing information

6 years ago · 80bf2d6192
1 changed files with 4 additions and 1 deletions
--- a/Tools/FilterTestTool/Readme.md
+++ b/Tools/FilterTestTool/Readme.md
@ -1,8 +1,11 @@
				@@ -1,8 +1,11 @@
 # ArduPilot IMU Filter Test Tool

-**Warning: always check the onboard FFT to setup filters, this tool only simulate effects of filtering.**
+**Warning: always check the onboard FFT to setup filters, this tool only simulates the effects of filtering.**

 This is a tool to simulate IMU filtering on a raw IMU log.
+This requires activating the RAW_IMU bit on the LOG_BITMASK parameter.
+Currently only supports the primary IMU and does not use batch sampling.
+
 To run it:

 ```bash