Hardware Description
2.3.3
Using a BoosterPack or Digital Sensors
An example of this use case is using the Sensor Hub BoosterPack. In this configuration the EVM is
powered by the USB connection.
1. Set switch S6 (near the BoosterPack headers) to "Supply".
2. Set switch S3 to "M" (master mode).
3. Attach the BoosterPack on top of the EVM, making sure it is in the correct orientation (pin 1 on the
EVM matches pin 1 on the BoosterPack headers).
4. Connect the USB cable to either the BoosterPack or the RF430FRL152HEVM.
Note: When the USB cable is attached, the power LED (U5) stays illuminated. The Alarm LED (U7) should
momentarily illuminate and then turn off.
Now the TRF7970AEVM can be used to communicate to the part and initiate samples of the various
sensors.
2.3.4
Using a Host Controller
In this mode, the host LaunchPad is connected underneath the RF430FRL152HEVM. Make sure the
orientations match.
1. Set switch S6 (near the BoosterPack headers) to "Supply" setting.
2. Set S3 to "S" (slave mode).
3. For a host that uses I
2
C, S5 and S4 determine the two least significant bits of the I
2
C slave address for
the RF430FRL152H. For most cases, set these switches to the "0" positions.
4. For a host that uses SPI, S5 and S4 determine the SPI mode. For most cases, set these switches to
the "0" positions.
5. Set S5 or S4 to desired setting at this time.
6. Connect the LaunchPad and the EVM together.
7. Power either the LaunchPad or the EVM by connecting either to a USB cable.
Note: When the USB cable is attached, the power LED (U5) stay illuminated. The Alarm LED (U7) should
momentarily illuminate and then turn off.
2.3.5
Powering the EVM Using a Battery
1. Insert an SR66 1.5-V battery into the battery holder (BAT1).
2. Note: The first time that a battery is inserted, the batter holder may be tight. Carefully holding the board
with a flat object, firmly slide in the battery. Make sure that the positive side of the battery is facing the
positive (or top) side of the battery holder.
3. Set S6 to "Battery".
4. If the battery switch is open (the battery switch is inside the RF430FRL152H), SV7 needs to have a
jumper to power the part. If the battery switch is closed, then SV7 does not need a jumper to power the
RF430FRL152H.
Note: In this mode, the alarm and power LEDs are not illuminated. The device is still powered and
operational.
Note: Also if S5, S4, or S3 positions are changed after powering the EVM, a reset is required for the
changed settings to take effect. This can be done through the PC GUI or by pressing the reset switch
(S2).
Note: If a battery is installed and another configuration (for example, debugging or using a BoosterPack) is
required, set switch S6 to "Supply" to disconnect the battery and not drain it.
7
SLAU607 – December 2014
RF430FRL152HEVM User's Guide
Copyright © 2014, Texas Instruments Incorporated
