Power Probe Header - J86 - Lantronix Open-Q 212A User Manual

Description
APQ GPIO_7
BLSP2 Bit 0
Default: I2C2_SCL
APQ GPIO_6
BLSP2 Bit 1
Default: I2C2_SDA
GND
GND
GND
USB_VBUS for
SOM and USB Ports
(J2901) on Carrier
Board
3.8.7 Power Probe Header – J86
J86 allows user to measure the power consumed by the SOM during operation. User can measure the
voltage across the 0.005Ω sense resistor (R140) and calculate the current consumed. Pinout of J86 is
provided in below.
Pin #
1
2
Open-Q™ 212A Development Kit User Guide
Signal
GPIO_7_BLSPx_I2C_
SCL
GPIO_6_BLSPx_I2C_
SDA
GND
GND
GND
BATT_EXP_USB_VB
US
Figure 9 J86 Power Probe Header
Table 9 Power Header J86 Pin out
Description
SOM power positive current sense line
SOM power negative current sense line
Pin Pin
Signal
# #
25 26 NC
27 28 BATT_EXP_1P8
29 30
BATT_EXP_SYS_PW
31 32
33 34
35 36 GND
37 38 GND
39 40 GND
SOM_PWR_SENSE_P
SOM_PWR_SENSE_N
Open-Q 212A Development Kit
Description
NC
+1.8V output
(VREG_L5_1P8)
SOM_SYS_PWR_
PER (SOM Power
Input)
R
GND
GND
GND
Signal
25