Mobiletek LYNO L710, Руководство пользователя

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L710 EVB User Manual
Copyright© Shanghai Mobiletek Communication Ltd 8
Figure 2-1: L710 EVB global graph
The above picture description:
1.
The L710 USB port is on the EPI board, not on the EVB.
2.
The power switch S2. This switch S2 can switch the corresponding power input way, Choose an
external power adapter or direct bonding wire by external input 3.8 V dc power supply.
3.
DB9 UART is serial port for module AT instruction, same as USB uart.
4
. USB for Debug UART is used for user to retrieve the Debug information.
5.
To facilitate the user's use, maintain a minimum system and we provide a power interface on the L710
EPI board.
3 Power Supply
L710 development board provides two methods for power supply: External DC 5 V adapter and 3.8 V DC
power supply directly. Through an external DC 5 V adapter power supply, the power supply voltage
regulator on the development board piece of power supply will be converted to about 3.8 V
,
power supply
for the module.
These two modes can be switched by S1. Switch S1 to the top when using DC 5V
adapter and Switch S1 to the bottom when using battery power. The power indicator (LED1 next
to the power switch) will light up when the system is powered on.
As shown in the figure below: