VERSION 1.9
J120 (38198-X)
I2C busses with the Jetson TX1
The Jetson TX1 features 7 I2C devices: I2C0 to I2C6. The table below lists how these I2C devices are mounted.
A B102 module may be connected to the CSI-2 EF connector. The Toshiba TC358743 HDMI to CSI-2 converter
chip is on the 7 bit I2C address 0x0F, as it can be seen in the terminal output below.
$ sudo i2cdetect -y -r 2
0
1
2
3
4
5
6
7
8
9
a
b
c
d
e
f
00:
-- -- -- -- -- -- -- -- -- -- -- --
0f
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: 50 51 52 53 -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
CAN
The J120 features 1 or 2 CAN interfaces. As the Jetson TX1 does not have native CAN interfaces, the J120
features 2 SPI based CAN controllers (Microchip MCP2515). Please install the Kernel and support package with
the MCP2515 driver, which is provided by Auvidea. Because of a bug in the SPI_CS_0 handling only 1 CAN
controller is populated.
$ sudo modprobe mcp251x
$ sudo ip link set can0 up type can bitrate 1000000
$ ifconfig
can0 Link encap:UNSPEC HWaddr 00-00-00-00-00-00-00-00-00-00-00-00-00-00-00-00
UP RUNNING NOARP MTU:16 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:10
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
eth0 Link encap:Ethernet HWaddr 00:04:4b:57:29:32
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
lo Link encap:Local Loopback
inet addr:127.0.0.1 Mask:255.0.0.0
Bus
device
physical bus
Use
I2C0
0
I2C0
I2C1
1
I2C1
LM75ADP temperature sensor
I2C2
2
I2C_PM
CSI-2 EF connector
I2C3
3
?
I2C4
4
?
I2C5
5
?
I2C6
6
I2C_CAM
AUVIDEA GMBH
TECHNICAL REFERENCE MANUAL
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