STEVAL-IFS009V1 STMicroelectronics, STEVAL-IFS009V1 Datasheet - Page 8

• Manufacturer Part Number: STEVAL-IFS009V1
• Description: BOARD EVAL EXTENSION SN250
• Manufacturer: STMicroelectronics
• Type: Network Processorr

Specifications of STEVAL-IFS009V1

• Design Resources: STEVAL-IFS009V1 Schematic STEVAL-IFS009V1 Bill of Materials
• Frequency: 2.4GHz
• Wireless Frequency: 2.4 GHz
• Interface Type: USB
• For Use With/related Products: SN250
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 497-8373

Block diagram
1.5.3
1.6
1.7
1.7.1
1.7.2
1.8
Note:
8/10
When error occurs, e.g. battery is missing, both leds red LD12 and green LD11 are turned-
on.
It's good to keep SW1 open, to be able to charge the battery. It is possible to charge battery
even the SW1 is closed (board in operation mode) but the charging process starts again and
again.
Supply directly from pins
It's possible to charge the board directly from the pins of CN2. In this case the SW1 is
closing 3V3 and CON. pins. This connector is compatible with STR9_DONGLE (STEVAL-
IFS0001V1). Please refer to UM0282.
Board storage recommendation
When not using the board for longer time, It's strongly recommended to remove or
disconnect (SW2 open) the battery from the board.
Measurements
Battery measurement
It is possible to use SW2 for measurement: battery voltage or current (closing by
ampermeter).
Output voltage measurement
It is possible to use SW1 to measure final voltage outcoming from the voltage regulator.
Firmware
Firmware is pre-flashed. For your own application development you need to have a tool.
STMicroelectronics offers: www.st.com/stonline/products/literature/bd/13503/sndev-
250.htm.
The demonstration firmware embedded in the SN250 Flash memory manages the
communications with the STML75 and the MEMS through the I
interact with the SN250 through its UART which is connected to CN2. SPI communications
are not supported. However the demonstration firmware can be modified and
reprogrammed into the Flash memory.
2
C interface. The user can
UM0458