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

Description
No connection on
Carrier Board
APQ GPIO_5
BLSP2 Bit 2
Default: UART2_RX
*Switch S10-8 must
be set to OFF.
APQ GPIO_4
BLSP2 Bit 3
Default: UART2_TX
*Switch S10-8 must
be set to OFF.
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
Open-Q™ 212A Development Kit User Guide Version 1.0
Signal
BATT_CHG_EXP_TP
1
GPIO_5_BLSPx_UAR
T_RX
GPIO_4_BLSPx_UAR
T_TX
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
Copyright Intrinsyc Technologies Corporation
Pin
Pin
Signal
#
#
19 20 GND
21 22 OPT_1
23 24 OPT_2
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
20
Description
GND
PM8916-1 OPT_1
Leave
Unconnected
PM8916-1 OPT_2
Leave
Unconnected
NC
+1.8V output
(VREG_L5_1P8)
SOM_SYS_PWR_
PER (SOM Power
R Input)
GND
GND
GND
Signal