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Open-Q™ 845 µSOM Development Kit User Guide
If the user intends to use a mini-PCIe card on the dev kit that requires a USB connection, then the
Mini-PCIe USB enable DIP switch S2401 (6) must be switched to closed / ON. See Figure 6. Mini-
PCIe USB Enable DIP Switch (6). If the DIP switch is closed, the USB 3.1 Type A connector J2400
(5) is not functional.
3.7.16 Digital IO Expansion Header J2200 (23)
The Open-Q 845 µSOM Development Kit includes a digital IO expansion header J2200 which
provides access to a selection of µSOM GPIO signals and power rails. See item 23 in Figure 1 for
the carrier board location of this header. The pinout for this header is shown in the table below.
Pin
Signal
No
1
VREG_S4A_1P8
SSC8_QUP2_0_SPI2_
3
MISO
SSC9_QUP2_1_SPI2_
5
MOSI
SSC10_QUP2_2_SPI2
7
_CLK
SSC11_QUP2_3_SPI2
9
_CS_N
11
GND
GPIO56_QUP10_1_I2
13
C_SCL
GPIO55_QUP10_0_I2
15
C_SDA
17
GND
19
No Net
For more details regarding configuring the GPIOs on this header, refer to the Open-Q 845 Software
Release Notes to determine feature support in the latest software release.
3.7.17 Sensor IO Expansion Header J2100 (21)
The Open-Q 845 µSOM Development Kit includes a sensor expansion header J2100 which provides
a connection to an optional sensor board. If sensor functionality is not required, this header may be
used for other applications. See item 21 in Figure 1 for the carrier board location of this header. The
pinout for this header is shown in the table below.
Pin
Signal
No
1
SSC0_QUP0_0_I2C1_SDA
3
SSC1_QUP0_1_I2C1_SCL
GPIO63_QUA_MI2S_DATA
5
3
© Copyright Intrinsyc Technologies Corporation
Table 11. Digital IO Expansion Header J2200 Pinout
Description
µSOM LDO Regulator
S4A +1.8V
CPU Sensor Core
SSC_GPIO8
CPU Sensor Core
SSC_GPIO9
CPU Sensor Core
SSC_GPIO10
CPU Sensor Core
SSC_GPIO11
Ground
CPU GPIO56
CPU GPIO55
Ground
Table 12 - Sensor Expansion Header J2100 Pinout
Description
CPU Sensor Core
SSC_GPIO0
CPU Sensor Core
SSC_GPIO1
CPU GPIO63
Pin
Signal
No
2
VREG_S4A_1P8
4
MB_VREG_3P3
6
GPIO11_LCD_TE1
GPIO0_QUP0_L0_SPI
8
_MISO
GPIO1_QUP0_L1_SPI
10
_MOSI
GPIO2_QUP0_L2_SPI
12
_CLK
GPIO3_QUP0_L3_SPI
14
_CS_N
16
GPIO7_LCD1_RST_N
18
GND
20
MB_VREG_5P0
Pin
Signal
No
2
GPIO117_ACCEL_INT
4
GPIO123
6
GPIO118_GYRO_INT
Version 1.0
Description
µSOM LDO Regulator S4A
+1.8V
Carrier board switching
regulator. 3.3V
CPU GPIO11
CPU GPIO0
CPU GPIO1
CPU GPIO2
CPU GPIO3
CPU GPIO7
Ground
Carrier board switching
regulator +5.0V
Description
CPU GPIO117
CPU GPIO123
CPU GPIO118
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