Texas Instruments LMP91000EVM Evaluation Module LMP91000EVM/NOPB LMP91000EVM/NOPB Datenbogen
Produktcode
LMP91000EVM/NOPB
SNAU121-April 2012
LMP91000EVM User’s Guide
3
J_MENB
Manual
J_MENB
Microcontroller
Figure 3: J_MENB Jumper Settings
2.3. Connection of the LMP91000EVM to SPIO4 Board
The SPIO4 board is a data capture board required when the LMP91000 is used in the Sensor AFE eval
platform. The LMP91000EVM is connected to the SPIO4 board through the SPIO-GPSI16 connector.
The white arrows present on both LMP91000EVM and SPIO4 board need to be aligned in order to guaranty
the right connection.
platform. The LMP91000EVM is connected to the SPIO4 board through the SPIO-GPSI16 connector.
The white arrows present on both LMP91000EVM and SPIO4 board need to be aligned in order to guaranty
the right connection.
Figure 4: Connection of the LMP91000EVM to SPIO4 board
2.4. LMP91000EVM as part of Sensor AFE eval platform
When the LMP91000EVM is part of the Sensor AFE eval platform it doesn’t require any external power
supply to properly work.
Before using the Sensor AFE eval platform make sure the following steps have been accomplished:
supply to properly work.
Before using the Sensor AFE eval platform make sure the following steps have been accomplished:
1. Install the Graphical User Interface of the LMP91000EVM
2. Connect the LMP91000EVM to the SPIO4 board
3. Connect the USB cable to SPIO-4 board
4. Connect the other end of the USB cable to an available USB port on the computer
5. Run the Graphical User Interface
2. Connect the LMP91000EVM to the SPIO4 board
3. Connect the USB cable to SPIO-4 board
4. Connect the other end of the USB cable to an available USB port on the computer
5. Run the Graphical User Interface
The voltage at VDD pin of the LMP91000 (VDD test point) is 3.3V, the voltage at VREF pin of the LMP91000
(VREF test point) is 2.5V. The LMP91000EVM is ready to work.
(VREF test point) is 2.5V. The LMP91000EVM is ready to work.
2.5. LMP91000EVM In Standalone Operation (without ADC)
The LMP91000EVM can be used as a standalone board. In this case it requires the following voltages
2.5.1. Jumper/s setting
J_MENB - pin 2 and 3 shorted (manual mode), if on the I2C bus already exist a device with the same
address of the LMP91000, leave pin1 and 2 shorted.
address of the LMP91000, leave pin1 and 2 shorted.
2.5.2. Power supply
1. Remove R7 resistor
2. Connect a supply voltage (2.7V to 5.25V) between VDD test point and GND test point.
2. Connect a supply voltage (2.7V to 5.25V) between VDD test point and GND test point.