AV Control Unit: Difference between revisions - Nissan Leaf

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* It connects to the [[Telematics Control Unit (TCU)]] via USB and CANBUS

* It receives a video signal from the [[Around View Monitor Control Unit]], and also controls it via CANBUS

*

== SD card ==

The SD card contains map data in a user-accessible partition, part of the firmware (Windows CE image) in unpartitioned space near the start of the SD card, and a hidden partition towards the end containing the '''substance.skn''' file which contains icons and strings.<ref>https://www.drive2.ru/l/667865354017446198/</ref>

The SD card contains map data in a user-accessible partition, part of the firmware (Windows CE image) in unpartitioned space near the start of the SD card, and a hidden partition towards the end containing the '''substance.skn''' file which contains icons and strings.<ref name=":0">https://www.drive2.ru/l/667865354017446198/</ref>

In Gen 1 units, the SD card is locked. The password can be captured by dumping the flash memory of the unit, or by intercepting the communication to the SD card itself during boot.

In Gen 2 units, the SD card is not locked, as in its contents can be freely read and written.

An SD card can also be used to update the firmware in the unit.

== Debugging ==

Gen 1 units (not sure about Gen 2) have a UART exposed on the 40-pin connector, which provides a debug shell.<ref name=":0" />

== References ==

@@ Line 28: / Line 28: @@
 * It connects to the [[Telematics Control Unit (TCU)]] via USB and CANBUS
 * It receives a video signal from the [[Around View Monitor Control Unit]], and also controls it via CANBUS
+*
 == SD card ==
-The SD card contains map data in a user-accessible partition, part of the firmware (Windows CE image) in unpartitioned space near the start of the SD card, and a hidden partition towards the end containing the '''substance.skn''' file which contains icons and strings.<ref>https://www.drive2.ru/l/667865354017446198/</ref>
+The SD card contains map data in a user-accessible partition, part of the firmware (Windows CE image) in unpartitioned space near the start of the SD card, and a hidden partition towards the end containing the '''substance.skn''' file which contains icons and strings.<ref name=":0">https://www.drive2.ru/l/667865354017446198/</ref>
+In Gen 1 units, the SD card is locked. The password can be captured by dumping the flash memory of the unit, or by intercepting the communication to the SD card itself during boot.
+In Gen 2 units, the SD card is not locked, as in its contents can be freely read and written.
+An SD card can also be used to update the firmware in the unit.
+== Debugging ==
+Gen 1 units (not sure about Gen 2) have a UART exposed on the 40-pin connector, which provides a debug shell.<ref name=":0" />
 == References ==