3: Open-Q 845 µSOM Development Kit
Open-Q 845 µSOM Development Kit User Guide
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3.7.14 Camera Flash Connectors J1001 (19) and J1201 (20)
In addition to the four camera connectors, the video capturing subsystem of the Open-Q 845 µSOM
Development Kit is equipped with two connectors for flash or torch devices (J1001 and J1201). The
PMI8998 power management IC has three flash channels, each with a maximum 1.5A rated regulated
current sink. However, the development kit exposes only two of the flash channels with a 0.25A current
limit, due to the current limit of the µSOM connectors pins.
See items 19 and 20 in Figure 1 for the carrier board locations of the camera flash connectors. The
pinout of the connectors in shown in the table below. The typical interfacing to these camera flash
channels is shown in the figure below.
Table 10. Camera Flash Connectors pinout
Pin No
Signal Name
Description
1
SOM_SYS_PWR_PER
System power 3.9V. Current limited to <0.5A
2
GND
System ground
3
GPIO_22_FL_STROBE_TRIG
CPU GPIO 22, input from external CMOS level flash trigger
4
FLASH_LED1 or FLASH_LED2
PMI8998 flash current sink channel 1 and 2, Full scale 0.24A
regulated in 48 steps
Figure 9. Typical Connection for Camera Flash Connector
3.7.15 Mini-PCIe Card Connector J2801 (24)
The Open-Q 845 µSOM Development Kit includes a mini-PCIe card socket J2801 (24) and an optional SIM
card socket J2800 (25) on the bottom side of the carrier board (see image below).
