There are a number of add-on modules available which can be connected.
There are many signals which connect to both CON1 and CON2. Please be careful
of possible signal conflicts when designing an expansion board.
11.3. CON2 Add-on Interface 2
CON2 is an expansion interface. It connects to signal lines of the i.MX7 Dual which offer multiple functions (multi-
plexing), and functions such as USB, UART, SPI, I2C, and GPIO can be interfaced to.
Mounted Connector
DF17(4.0)-60DS-0.5V(57)/HIROSE ELECTRIC
Matching Connector
Example
DF17(4.0)-60DP-0.5V(57)/HIROSE ELECTRIC
Allowable Current
0.3A (per one terminal)
Table 11.4. CON2 Signals
Pin Num-
ber
Pin Name
I/O
Description
1
GND
Power
Power (GND)
2
GND
Power
Power (GND)
3
NC
-
Not Connected
4
NC
-
Not Connected
5
NC
-
Not Connected
6
NC
-
Not Connected
7
NC
-
Not Connected
8
NC
-
Not Connected
9
NC
-
Not Connected
10
NC
-
Not Connected
11
NC
-
Not Connected
12
NC
-
Not Connected
13
NC
-
Not Connected
14
NC
-
Not Connected
15
NC
-
Not Connected
16
NC
-
Not Connected
17
NC
-
Not Connected
18
NC
-
Not Connected
19
NC
-
Not Connected
20
GPIO4_IO8
In/Out
Expansion I/O, connected to I2C1_SCL pin of i.MX7 Dual
Shared connection with pin 20 of CON1
21
GPIO4_IO9
In/Out
Expansion I/O, connected to I2C1_SDA pin of i.MX7 Dual
Shared connection with pin 21 of CON1
22
NC
-
Not Connected
23
NC
-
Not Connected
Armadillo-IoT Gateway G3Product Manual - INTL
Interface Specifications
115