Murata SN8000 EVK, Руководство пользователя

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SN8000 EVK User Guide
Page 10 of 30
CN11 PA5 CLK Jumper on to use serial flash
CN13 PA7 DI Jumper on to use serial flash
CN12 PA6 DO Jumper on to use serial flash
Table 2 Serial flash interface jumpers
2.2.4 EVB supply jumper setting
The EVB power can be provided either by the USB host or an external 5V supply. The supply source is
configured by jumper CN2, as described in Table 3. By default, the USB is selected as the power source
for the EVB.
Power source CN2 position Remark
USB USB Jumper away from VEXT
External 5V DC EXT Jumper closest to VEXT
Table 3 EVB power supply jumper setting
2.2.5 SN8000 supply jumper setting
The SN8000 power (VDD_SD supplying both VDD_IO and VDD_BAT) can be provided by the EVB and
is selectable between 3.3V and 3.6V. The supply source is configured by jumper CN9, as described in
Table 4. The power indicator LED shows the availability of power to the SN8000 SDIO adapter.
VDD source CN3 position Remark
3.3V 3.3V Jumper closest to power indicator
3.6V 3.6V Jumper away from power indicator
Table 4 VDD supply jumper setting
2.2.6 Application button and LED
The application button and LED are connected to STM32F for application usage, e.g., WICED bootloader
button and LED. The button and LED are connected to PC4 and PC5, respectively, of STM32F.
2.2.7 Header pads
The SN8000 EVB provides the following header pads (0.1” pitch) for application-specific usage:

Select STM32F205RG I/Os with the pin number as labeled on the silk screen
2.3 Using the preload firmware
By default the SN8000 EVB is already loaded with an application firmware. It provides basic features such
as soft AP and simple web service. Power up the board through a mini USB cable connected to a PC.
(Discard any “Found new USB device” message on PC for now. The demo only needs the USB interface
to provide the +5V power. The USB driver installation will be addressed in the Section 2.4)
Once the board is power up, on a Laptop PC (or any web capable device), turn on WiFi and scan for the