Reference Manual

Hardware Reference Manual
Version 1.0 - 42 - eInfochips Confidential
6.3.2 Boot Configuration
The ERAGON660 can be configured to function in different modes by selecting the switch SW3
provided on SBC. Below table mentions different boot configurations options,
CONFIG_3
(Position-3)
CONFIG_2
(Position-2)
CONFIG_1
(Position-1)
FORCE_USB_BOOT
(Position-4)
Function
0
0
0
0
eMMC --> SD --> USB
0
0
1
0
SD --> eMMC
0
1
0
0
SD
0
1
1
0
USB
1
0
0
0
UFS HS-G1
1
0
1
0
SD --> UFS
Table 10: ERAGON660 BOOT Configuration options
CONFIG switch in ON position indicates level 1. To boot through eMMC --> SD --> USB make sure SW3 is
0000.
Figure 8 – SBC Boot Configuration Switch (SW1)
6.3.3 General Purpose Keys
There are three general-purpose keys provided on SBC. Their applications are as below,
 SW1 (Power ON/Sleep mode switch): If board goes in the sleep mode, then by pressing SW1
we can get Board out of sleep mode. After power ON the board with battery, this key need to
be press to boot up.
 SW4 (Volume up): This key is pressed to up the volume of media.
 SW5 (Fast boot switch or Volume down): This switch is pressed to get processor into Fast boot
mode or to reduce the volume of media.