diff --git a/Tools/AP_Periph/README.md b/Tools/AP_Periph/README.md
index f48198043f..90e5a62cd0 100644
--- a/Tools/AP_Periph/README.md
+++ b/Tools/AP_Periph/README.md
@@ -44,7 +44,9 @@ An AP_Periph UAVCAN firmware supports these UAVCAN features:
  - parameter storage in flash
  - easy bootloader update
  - high resiliance features using watchdog, CRC and board checks
- - firmware update via MissionPlanner or uavcan-gui-tool
+ - firmware and parameter update via MissionPlanner or DroneCAN GUI tool when attached to an autopilot
+ - firmware update via USB if USB port is provided
+ - parameter update using SLCAN and DroneCAN GUI on standalone peripheral via USB, if provided
 
 # Building