Texas Instruments EVM430-FR6043 User manual

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EVM430-FR6043 hardware guide
User's Guide
SLAU764–January 2019
EVM430-FR6043 hardware guide
This guide is a reference to the different hardware configurations available with the MSP430FR6043
Ultrasonic Sensing Evaluation Module (EVM430-FR6043). These configurations include power, header
configurations and pinouts, and communication interfaces.
Contents
1 Power.......................................................................................................................... 2
1.1 USB Power .......................................................................................................... 2
1.2 External Power...................................................................................................... 3
2 Header Connections......................................................................................................... 5
2.1 Default Configuration............................................................................................... 5
2.2 Transducer Headers................................................................................................ 6
2.3 Connectors for BoosterPack Plug-in Modules .................................................................. 7
2.4 JTAG ................................................................................................................. 8
2.5 Communications .................................................................................................... 8
3 LCD .......................................................................................................................... 10
4 AFE Configuration.......................................................................................................... 11
4.1 Power Source...................................................................................................... 11
4.2 TX Voltage ......................................................................................................... 11
4.3 5-V Enable ......................................................................................................... 11
5 References.................................................................................................................. 12
Trademarks
BoosterPack is a trademark of Texas Instruments.
All other trademarks are the property of their respective owners.

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1 Power
The USB or an external power supply (for example, a battery or a bench supply) can supply power to the
EVM430-FR6043. Jumper and switch configurations set the power source for the MSP430FR6043
microcontroller (MCU).
1.1 USB Power
To use USB as the power source, set the S5 (POW_SEL) switch to the middle position (ezFET) (see
Figure 1).
Figure 1. Power Selection
Figure 2 shows how to set J2 and J4.
Figure 2. USB Power Jumper Configuration

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1.2 External Power
When using external power, set the S5 switch to the top position (External). Apply the external supply
voltage to the J33 header (see Figure 3). For lowest power consumption, open all jumpers on J1, J2, and
J3. If the circuit does not use a regulator (which is optional), the operational supply voltage range is 1.8 V
to 3.6 V. If communicating through USB, set GND on J2 and the communication jumpers on J1.
Figure 3. External Power

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1.2.1 Measuring Current Consumption
To measure current consumption, remove the J32 jumper and place an ammeter across the header (see
Figure 4). When current measurements are not being performed, make sure to set this jumper.
Figure 4. Current Measurement Header

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2 Header Connections
2.1 Default Configuration
Table 1 lists the default jumper configuration.
Table 1. Default Jumper Configuration
Jumper Default
Configuration Description
J1
1-2: ON
3-4: ON
5-6: ON
7-8: OFF
9-10: OFF
Allows communication to the Design Center using I2C
J2 1-2: ON3-4: ON Provides power to the EVM from USB
J3 1-2: ON
3-4: ON
5-6: OFF
7-8: OFF
Allows programming and debugging using the integrated eZ-FET. Disables the backchannel
UART.
J4 2-3: ON Uses the USB LDO to provide power to the EVM
J5 Transducer 1 Connects to transducer 1
J6 Transducer 2 Connects to transducer 2
J9
1-2: OFF
3-4: ON
5-6: ON
7-8: O
N9-10: OFF
Connects transducer signals to the analog front end (AFE)
J10 OFF Provides access to the AFE pins
J11 OFF Provides access to the AFE pins
J13 OFF Provides access to the MTIF pins
J30 OFF Disconnects VCC from the expansion connector
J31 ON Connects AFE ground to MCU ground
J32 ON Provides power to the MCU
J33 OFF Provides external power. Not used when powered through USB.
JP1 OFF Provides 5-V power to the AFE circuitry. Can be used for power measurement.
JP2 3.3VTX Enables the 3.3-V AFE circuitry
JP3 ON Provides power to the AFE. Can be used for power measurement.
JP4 ON Provides power to the AFE transmit circuitry. Can be used for power measurement.
JP5 ON Provides power to the AFE receive circuitry. Can be used for power measurement.

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2.2 Transducer Headers
You can connect two transducers to the board on J5 and J6. The PCB silkscreen shows signal (X1 or X2)
and ground (GND) for each transducer.
Figure 5. Transducer Header

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2.3 Connectors for BoosterPack Plug-in Modules
You can connect a BoosterPack™ plug-in module or other device that offer functionality such as wireless
connectivity on J7 and J8. To power a BoosterPack plug-in module from the main power supply, set J30
(see Figure 6 and Table 2).
Figure 6. Headers for BoosterPack Plug-in Modules
Table 2. Connections for BoosterPack Plug-in Modules
J7 J8
VCC N.C. N.C. GND
N.C. GND N.C. N.C.
RXD N.C. N.C. SPI_CS
TXD N.C. N.C. N.C.
GPIO N.C. N.C. N.C.
N.C. N.C. N.C. SPI_MOSI
SPI_CLK N.C. N.C. SPI_MISO
N.C. N.C. N.C. N.C.
SCL N.C. N.C. N.C.
SDA N.C. N.C. GPIO

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2.4 JTAG
A standard MSP430 14-pin JTAG header supports communication to program and debug the MCU (see
Figure 7). If power is supplied by the JTAG header, set the POW_SEL switch the bottom position (JTAG).
If external power is used, set the switch to the top position (External).
Figure 7. JTAG Header
2.5 Communications
The EVM430-FR6043 supports UART, I2C, and Spy-Bi-Wire interfaces.
J3 connects JTAG TX and RX (UART). To use this interface with the on-board eZ-FET circuit, place
jumpers on the J3 TXD and RXD pins (see Figure 8).
Figure 8. JTAG UART Jumpers

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J2 also provides a connection for the Spy-Bi-Wire interface to program and debug the MCU. To use the
on-board eZ-FET circuit, place jumpers on the J3 TEST and RST pins (see Figure 9).
Figure 9. Spy-Bi-Wire Jumpers
J1 provides a connection between the MSP430FR6043 MCU and the high-speed USB HID interface. To
enable I2C, put jumpers on the J1 COMM_SDA, COMM_SCL, and COMM_IRQ pins (see Figure 10).
Figure 10. I2C Jumpers

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To enable UART on the USB HID interface, put jumpers on the J1 TXD and RXD pins (see Figure 11).
Figure 11. USB HID UART Jumpers
3 LCD
Adjust the LCD contrast with the R3 potentiometer (see Figure 12). Use a small flathead screwdriver to
adjust the resistance of R3 and monitor the contrast on the display.
Figure 12. LCD Contrast Control

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4 AFE Configuration
The EVM430-FR6043 includes circuitry for additional amplification and to filter. The following sections
describe how to configure this AFE.
4.1 Power Source
To use the same voltage source as the MCU, set JP3. To use an external voltage source, remove the
jumper from JP3 and apply voltage to TP1 (V+) and TP2 (GND) (see Figure 13).
Figure 13. MCU Voltage Source
4.2 TX Voltage
Use JP2 to set the transmit voltage level to 3.3 V or 5 V. For 5-V operation, also set JP1 (see Figure 14).
Figure 14. 5-V Configuration
4.3 5-V Enable
The AFE includes a DC/DC step-up converter to enable 5-V TX voltage. To enable the step up converter,
set JP1. For 5-V operation, also set JP2 for 5-V operation (see Figure 14).

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5 References
1. MSP430FR6043-based ultrasonic gas flow meter quick start guide
2. MSP430FR604x, MSP430FR504x ultrasonic sensing MSP430™ microcontrollers for gas and water
flow metering applications data sheet

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