update RADIX2HD bd info

ArduPilot · Oct 22, 2023 · 2be46a4 · 2be46a4
1 parent b57efca
commit 2be46a4
Showing 1 changed file with 6 additions and 3 deletions.
diff --git a/common/source/docs/common-radix2hd.rst b/common/source/docs/common-radix2hd.rst
@@ -39,7 +39,7 @@ Specifications
    -  8x PWM outputs Bir-Directional DShot capable
    -  1x RC input
    -  CAN Bus port
-   -  6x UARTs/serial for GPS and other peripherals. UARt6 RX and TX can be re-tasked as the 9th and 10th PWM outputs
+   -  7x UARTs/serial for GPS and other peripherals. UART6 RX and TX can be re-tasked as the 9th and 10th PWM outputs
    -  I2C port for external compass, airspeed, etc.
    -  microSDCard for program firmward, logging, etc.
    -  USB-C port
@@ -81,12 +81,13 @@ The UARTs are marked Rn and Tn in the above pinouts. The Rn pin is the
 receive pin for UARTn. The Tn pin is the transmit pin for UARTn.
 
 - SERIAL0 -> USB
-- SERIAL1 -> UART1 (DMA-enabled, MSP DisplayPort OSD)
+- SERIAL1 -> UART1 (DMA-enabled, MSP DisplayPort OSD on DJI Connector)
 - SERIAL2 -> UART2 (DMA-enabled, GPS)
-- SERIAL3 -> UART3 (DMA-enabled, RCin on DJI Connector)
+- SERIAL3 -> UART3 (DMA-enabled, RCin)
 - SERIAL4 -> UART4 (RX on ESC connector for ESC Telemetry)
 - SERIAL5 -> UART5 (spare)
 - SERIAL6 -> UART6 (spare, PWM 9 and 10 by default, use :ref:`BRD_ALT_CONFIG<BRD_ALT_CONFIG>` = 1 for UART)
+- SERIAL7 -> UART7 (RX pin only on DJI Connector)
 
 RC Input
 ========
@@ -109,6 +110,8 @@ To allow CRSF and embedded telemetry available in Fport, CRSF, and SRXL2 receive
 
 Any UART can be used for RC system connections in ArduPilot also, and is compatible with all protocols except PPM. See :ref:`common-rc-systems` for details.
 
+RX6 can be configured for RCin coming from DJI air units by setting `:ref:`SERIAL3_PROTOCOL<SERIAL3_PROTOCOL>` to something other than "23" and setting `:ref:`SERIAL7_PROTOCOL<SERIAL7_PROTOCOL>` to "23".
+
 
 Motor/Servo Outputs
 ===================