Texas Instruments eZ430-TMS37157 User manual

eZ430-TMS37157 Development Tool
User's Guide
Literature Number: SLAU281B
November 2009–Revised March 2010

2SLAU281B–November 2009–Revised March 2010
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Contents
Preface ....................................................................................................................................... 5
1 eZ430-TMS37157 Overview ................................................................................................... 7
2 Developing With eZ430-TMS37157 ......................................................................................... 8
3 RFID Principles ................................................................................................................... 9
4 Kit Contents ...................................................................................................................... 10
5 Download the Software ...................................................................................................... 11
6 Installation ........................................................................................................................ 11
6.1 RFID Base Station Hardware Installation ........................................................................... 11
6.2 TMS37157 Hardware Installation .................................................................................... 15
6.3 eZ430-TMS37157 Demo Software (GUI) Installation ............................................................. 16
7 eZ430-TMS37157 Demo Software (GUI) ................................................................................ 16
8 eZ430-TMS37157 Demo ...................................................................................................... 18
8.1 Demo Mode Functions ................................................................................................ 18
8.2 Direct Access Mode ................................................................................................... 19
8.3 Trimming of the TMS37157 Target board .......................................................................... 21
9 Demo Examples ................................................................................................................ 22
9.1 Demo 1: SPI Access to MSP430, MSP Access Command ...................................................... 23
9.2 Demo 2: Configuration Memory Mode: Batteryless ............................................................... 24
9.3 Demo 3: Check Battery Level Mode ................................................................................ 25
9.4 Demo 4: Write and Read Data in Memory ......................................................................... 27
9.5 Demo 5: Read IC Serial Number .................................................................................... 28
9.6 Demo 6: Trimming the TMS37157 Target Board .................................................................. 29
10 MSP430F2274 Firmware Flow Diagrams ............................................................................... 31
11 Specifications ................................................................................................................... 35
12 Supported Devices ............................................................................................................ 36
13 MSP430 Application UART .................................................................................................. 36
14 Software Installation .......................................................................................................... 37
15 Hardware Installation ......................................................................................................... 37
16 Schematics ....................................................................................................................... 38
16.1 eZ430-RF USB Debugging Interface ................................................................................ 38
16.2 eZ430-TMS37157 Target Board ..................................................................................... 40
16.3 eZ430-TMS37157 Target Board ..................................................................................... 41
16.4 RFID Base Station ..................................................................................................... 42
17 IAR Workbench Compatibility Guide .................................................................................... 45
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List of Figures
1 eZ430-TMS37157........................................................................................................... 7
2 eZ430-TMS37157 Development Tool.................................................................................... 8
3 Kit Contents ................................................................................................................ 10
4 RFID Base Station With Mounted Antenna ............................................................................ 11
5 DC Power Plug ............................................................................................................ 12
6 Windows XP Hardware Recognition.................................................................................... 12
7 Windows XP Hardware Recognition for MSP430 Application UART............................................... 12
8 Found New Hardware Wizard, Step 1.................................................................................. 13
9 Found New Hardware Wizard, Step 2.................................................................................. 13
10 Hardware Installation...................................................................................................... 14
11 RFID Base Station in Device Manager................................................................................. 14
12 Connection of TMS37157 to the Battery Board ....................................................................... 15
13 eZ430-TMS37157 in Front of RFID Base Station..................................................................... 15
14 RFID Demo Software: Startup Screen ................................................................................. 16
15 RFID Demo Software: Com Port Tab................................................................................... 17
16 RFID Demo Software: Demo Mode..................................................................................... 18
17 TMS37157 Target Board ................................................................................................. 19
18 RFID Demo Software: Direct Access Mode............................................................................ 20
19 RFID Demo Software: Direct Access Mode, Program Page......................................................... 20
20 RFID Demo Software: Fail Message.................................................................................... 22
21 Demo 1 - SPI Access to MSP430 Mode ............................................................................... 23
22 Demo 2 - Configuration Memory Mode................................................................................. 24
23 Demo 3 - Check Battery Level Mode: High............................................................................ 25
24 Demo 3 - Check Battery Level Mode: Medium........................................................................ 26
25 Demo 3 - Check Battery Level Mode: Low............................................................................. 26
26 Demo 4 - Read Page ..................................................................................................... 27
27 Demo 5 - TMS37157 Memory Map ..................................................................................... 28
28 Demo 5 - Read Serial Number .......................................................................................... 28
29 Demo 6 - Read Page 2................................................................................................... 29
30 Demo 6 - Program Page 2 ............................................................................................... 30
31 Flow Diagram of Main Routine .......................................................................................... 31
32 Flow Diagram of Push Button Routine.................................................................................. 32
33 Flow Diagram of MSP Access Routine................................................................................. 33
34 Flow Diagram of Auto Trim Routine..................................................................................... 34
35 eZ430-RF2500 USB Debugging Interface 6-Pin Male Header...................................................... 36
36 9600 bps With No Flow Control ......................................................................................... 36
37 eZ430-RF USB Debugging Interface Schematic 1.................................................................... 38
38 eZ430-RF USB Debugging Interface Schematic 2.................................................................... 39
39 eZ430-TMS37157 Target Board Schematic ........................................................................... 40
40 eZ430-RF USB Debugging Interface, PCB Components Layout ................................................... 41
41 eZ430-RF USB Debugging Interface, PCB Layout ................................................................... 41
42 eZ430-TMS37157 Target Board, PCB Layout......................................................................... 41
43 RFID Base Station Schematic........................................................................................... 42
44 RFID Base Station Connector Schematic.............................................................................. 43
45 RFID Base Station Interface Board Schematic........................................................................ 44
4List of Figures SLAU281B–November 2009–Revised March 2010
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Preface
SLAU281B–November 2009–Revised March 2010
Read This First
If You Need Assistance
Support for MSP430 devices and the eZ430-TMS37157 is provided by the Texas Instruments Product
Information Center (PIC). Contact information for the PIC can be found on the TI web site at www.ti.com.
Additional device-specific information can be found on the MSP430 web site at www.ti.com/msp430.
NOTE: IAR Embedded Workbench®KickStart is supported by Texas Instruments.
Although IAR Embedded Workbench KickStart is a product of IAR, Texas Instruments
provides support for KickStart. Therefore, please do not request support for KickStart from
IAR. Please consult all provided documentation with KickStart before requesting assistance.
We Would Like to Hear from You
If you have any comments, feedback, or suggestions, please let us know by contacting us at
[email protected].
Trademarks
All trademarks are the property of their respective owners.
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6Read This First SLAU281B–November 2009–Revised March 2010
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User's Guide
SLAU281B–November 2009–Revised March 2010
eZ430-TMS37157 Development Tool
1 eZ430-TMS37157 Overview
The eZ430-TMS37157 is a complete USB-based MSP430 wireless development tool providing the
hardware and software to evaluate the MSP430F2274 microcontroller and the TMS37157 passive
low-frequency interface (PaLFI) RFID transponder.
The eZ430-TMS37157 uses Code Composer Essentials (CCE) or IAR Embedded Workbench Integrated
Development Environment (IDE) to write, download, and debug an application. The debugger is
unobtrusive, allowing the user to run an application at full speed with both hardware breakpoints and
single stepping available while consuming no extra hardware resources.
The eZ430-TMS37157 target board is an out-of-the box wireless system that may be used with the USB
debugging interface, as a stand-alone system with or without external sensors, or may be incorporated
into an existing design.
The new USB debugging interface enables the eZ430-TMS37157 to remotely send and receive data from
a PC using the MSP430 application UART.
eZ430-TMS37157 features:
•USB debugging and programming interface featuring a driverless installation and application
backchannel
•14 available development pins
•Highly integrated, ultra-low-power MSP430 MCU with 16-MHz performance
•Two general-purpose digital I/O pins connected to green and red LEDs for visual feedback
•Interruptible push button for user feedback
Figure 1. eZ430-TMS37157
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Battery Board
More development pins
Power In and Ground
Spy-Bi-Wire Interface
UART
15 available
development pins
P3.5/UCA0RXD/UCA0SOMI
VCC (3.6 V)
TEST/SBWTCK
RST/SBWTDIO
GND
P3.4/UCA0TXD/UCA0SIMO
eZ430-TMS37157
Target Board
TMS
37157
Developing With eZ430-TMS37157 www.ti.com
2 Developing With eZ430-TMS37157
The eZ430-TMS37157 can be used as a stand-alone development tool. Additionally, the
eZ430-TMS37157 target board also may be detached from the debugging interface and integrated into
another design. The target board features an MSP430F2274 and most of its pins are easily accessible.
The pins are shown in Figure 2 and described in Table 1 and Table 2:
Figure 2. eZ430-TMS37157 Development Tool
Table 1. eZ430-TMS37157 Target Board Pinouts
Pin Function Description
1 GND Ground reference
2 VCC Supply voltage
3 Not Connected
4 P2.0 / ACLK / A0 / OA0I0 General-purpose digital I/O pin / ACLK output / ADC10, analog input A0
5 Not Connected
P2.1 / TAINCLK / SMCLK / A1 / General-purpose digital I/O pin / ADC10, analog input A1
6A0O Timer_A, clock signal at INCLK, SMCLK signal output
7 Not Connected General-purpose digital I/O pin / ADC10, analog input A2
8 P2.2 / TA0 / A2 / OA0I1 Timer_A, capture: CCI0B input/BSL receive, compare: OUT0 output
General-purpose digital I/O pin / ADC10 analog input A12 /
9 P4.3 / TB0 / A12 / OA0O Timer_B, capture: CCI0B input, compare: OUT0 output
P2.3 / TA1 / A3 / VREF−/ VeREF−/ General-purpose digital I/O pin / Timer_A, capture: CCI1B input, compare: OUT1
10 OA1I1 / OA1O output / ADC10, analog input A3 / negative reference voltage output/input
General-purpose digital I/O pin / ADC10 analog input A13 /
11 P4.4 / TB1 / A13 / OA1O Timer_B, capture: CCI1B input, compare: OUT1 output
12 GND Ground reference
General-purpose digital I/O pin / ADC10 analog input A14 /
13 P4.5 / TB2 / A14 / OA0I3 Timer_B, compare: OUT2 output
General-purpose digital I/O pin / ADC10 analog input A15 /
14 P4.6 / TBOUTH / A15 / OA1I3 Timer_B, switch all TB0 to TB3 outputs to high impedance
General-purpose digital I/O pin
15 P3.2 / UCB0SOMI / UCB0SCL USCI_B0 slave out/master in when in SPI mode, SCL I2C clock in I2C mode
General-purpose digital I/O pin
16 P3.3 / UCB0CLK / UCA0STE USCI_B0 clock input/output / USCI_A0 slave transmit enable
General-purpose digital I/O pin / USCI_B0 slave transmit enable / USCI_A0 clock
17 P3.0 / UCB0STE / UCA0CLK / A5 input/output / ADC10, analog input A5
General-purpose digital I/O pin / USCI_B0 slave in/master out in SPI mode, SDA I2C
18 P3.1 / UCB0SIMO / UCB0SDA data in I2C mode
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Table 2. Battery Board Pinouts
Pin Function Description
General-purpose digital I/O pin / USCI_A0 transmit data output in UART mode (UART
1 P3.4 / UCA0TXD / UCA0SIMO communication from MSP430F2274 to PC), slave in/master out in SPI mode
2 GND Ground reference
Reset or nonmaskable interrupt input
3 RST / SBWTDIO Spy-Bi-Wire test data input/output during programming and test
Selects test mode for JTAG pins on Port 1. The device protection fuse is connected to
4 TEST / SBWTCK TEST. Spy-Bi-Wire test clock input during programming and test
5 VCC (3.6 V) Supply voltage
General-purpose digital I/O pin / USCI_A0 receive data input in UART mode (UART
6 P3.5 / UCA0RXD / UCA0SOMI communication from 2274 to PC), slave out/master in when in SPI mode
3 RFID Principles
Texas Instruments low-frequency RFID operates at a frequency of 134.2 kHz. A normal RFID system is
completely passive—the RFID Reader (the reader is a transceiver but is called only RFID Reader in this
document) sends a command to a RFID transponder, and the transponder answers, normally with its
serial number. The transponder is not connected to a battery; it is completely powered out of the RF field
supplied by the RFID Reader.
The TMS37157 extends this function by a 3 -wire SPI Interface to the MSP430. The TMS37157 is a
semi-active transponder. Its memory can be written through the RF interface (normal transponder
function) without need for a battery or through the SPI interface from a connected microcontroller. It offers
additional functions like a battery check and a battery charge; also it is able to transmit received data from
the RF interface directly to the connected microcontroller.
For ultra-low-power consumption, the TMS37157 offers the possibility to completely switch off the
microcontroller (if powered from VBATI) resulting in an overall power consumption of typically 60 nA. The
eZ430-TMS37157 does not cover this function. The MSP430 is directly connected to the battery.
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USB Cable
USB RFID Reader
eZ430 Emulator Stick
eZ430-TMS37157
Target Board
eZ430 Battery Board
Reader Antenna
Kit Contents www.ti.com
4 Kit Contents
Order Number: eZ430-TMS37157
Part Name: PaLFI Evaluation Kit TMS37157
Table 3. eZ430-TMS37157 Kit Content
Count Description
1 Documentation: Read Me First
1 eZ430 emulator stick
1 eZ430-TMS37157 target board
1 eZ430 battery board
2 AAA battery
1 USB RFID reader board
1 Reader antenna
1 USB cable
1 DC power plug cable
Figure 3. Kit Contents
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www.ti.com Download the Software
5 Download the Software
As first step, download the latest version of the following files:
1. TMS37157 data sheet: SWRS083
2. Demo software (GUI): SWRC164
3. USB device driver:
For interface board Rev 1.0: SWRC172
For interface board Rev 2.0: http://www.ftdichip.com/Drivers/VCP.htm
4. eZ430-TMS37157 firmware source code: SWRC165
5. Reader firmware source code: SLAC350
6. MSP430 code composer: http://www.ti.com/msp430
7. Additional documents (application notes, etc): http://www.ti.com/rfid
8. eZ430-TMS37157 Product Folder: http://focus.ti.com/docs/toolsw/folders/print/ez430-tms37157.html
6 Installation
6.1 RFID Base Station Hardware Installation
1. Plug the antenna into the RFID Base Station (J3), there is no need for soldering.
2. Connect the RFID Base Station to a USB port.
Figure 4. RFID Base Station With Mounted Antenna
NOTE: Do not solder the antenna pins.
Press fit the contacts.
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Dimensions (mm)
Type
A
B
C
1.3
1.4
3.5
9.5
2.1
2.1
5.5
9.0
2.5
2.5
5.5
9.0
DC Power Plugs
Rated at 12 V, 1 A
Installation www.ti.com
6.1.1 External Power Supply (Optional)
The base station is delivered to operate with USB power supply (0-Ωresistor R34 is assembled). For
longer read range, an external supply can be used. The steps to change to external power supply are:
1. Remove the 0-Ωresistor from R34 position.
2. Solder the same resistor on position R35.
3. Use external power supply of 9 V to 15 V at 1 A.
4. Use a DC power plug pin with a 2.5-mm diameter (RS Order No. 486-634 or 455-097) (see Figure 5).
Figure 5. DC Power Plug
6.1.2 Base Station USB Driver Installation
1. Install the RFID demo software by running RFID Demo Software-1.0-Setup.exe on the PC. This also
installs the device driver for the base station and the eZ430 USB debugging interface (see Section 5).
2. Plug the base station into the USB port.
3. Windows recognizes the new hardware as Texas Instruments MSP-FET430UIF (see Figure 6).
Windows should automatically install the drivers for the MSP-FET430UIF as an HID tool.
Figure 6. Windows XP Hardware Recognition
4. Windows recognizes another new hardware driver to be installed called MSP430 Application UART
(see Figure 7).
Figure 7. Windows XP Hardware Recognition for MSP430 Application UART
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www.ti.com Installation
5. The Found New Hardware Wizard opens (see Figure 8). Select No, not this time and click Next.
Figure 8. Found New Hardware Wizard, Step 1
6. Select Install the software automatically (Recommended), if IAR KickStart R4.64 or higher has already
been installed (see Figure 9).
Figure 9. Found New Hardware Wizard, Step 2
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Installation www.ti.com
7. The Wizard should find the appropriate driver for a Windows XP system; it shows a warning that
Microsoft did not certify the driver (see Figure 10). The drivers have been tested exhaustively, and this
warning can be ignored. Click Continue Anyway.
Figure 10. Hardware Installation
8. The Wizard continues to install the driver and then provides notification when it has finished the
installation of the software.
9. Find the right Com Port for the RFID Base Station ("Texas Instruments RFID Base Station") in the
Windows Device Manager (see Figure 11).
Figure 11. RFID Base Station in Device Manager
10. The USB driver is now installed on your PC. The system is ready for use.
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Battery
Board eZ430-TMS37157 Board
Remove Jumper
www.ti.com Installation
6.2 TMS37157 Hardware Installation
The eZ430-TMS37157 can be used as a standalone module or connected to the battery board.
Standalone
The eZ430-TMS37157 is used standalone without connection to any other module. In this setting, the
target board operates as passive device.
Connected to the Battery Board
The target board can be connected to the battery board. In this setting, it can be operated as:
•Passive device, when jumper JP1 is removed (no voltage supply)
•Active device, when jumper JP1 is connected (battery voltage supply)
NOTE: Make sure the top side of the battery board (red PCB) is connected to the top side of the
TMS37157 target board (component side) (see Figure 12).
Figure 12. Connection of TMS37157 to the Battery Board
Place eZ430-TMS37157 in front of the reader antenna. The expected operating distance in passive mode
(without battery supply) and with the given antenna on the TMS37157 target board is 2 to 3 cm (see
Figure 13).
Figure 13. eZ430-TMS37157 in Front of RFID Base Station
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eZ430-TMS37157 Demo Software (GUI) www.ti.com
6.3 eZ430-TMS37157 Demo Software (GUI) Installation
1. Unpack RFID Demo Software.zip.
2. Start the eZ430-TMS37157 Demo Reader Software using the shortcut installed on the desktop.
7 eZ430-TMS37157 Demo Software (GUI)
1. Ensure RFID base station is connected to the host PC.
2. Place the target board in front of the antenna of the RFID base station, the distance should not be
longer than 3 cm to show all functions; in particular, the extended mode requires a high field strength.
3. Start the RFID Demo Software from the PC (see Figure 14).
Figure 14. RFID Demo Software: Startup Screen
4. Go to the Com Port tab and choose the right com port for the RFID Base Station (see Figure 15). The
base station connects automatically to the right com port on the PC (the right com port can be found as
shown in Figure 11).
NOTE: Connection can be tested by pressing Configuration Push Button on the Demo Mode tab.
The red LED (LED4) flashes on every execution.
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www.ti.com eZ430-TMS37157 Demo Software (GUI)
Figure 15. RFID Demo Software: Com Port Tab
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A
B
C
eZ430-TMS37157 Demo www.ti.com
8 eZ430-TMS37157 Demo
8.1 Demo Mode Functions
Choose the Tab "Demo Mode" to see all Demo Functions. This tab offers three different categories of
demos (see Figure 16).
Figure 16. RFID Demo Software: Demo Mode
8.1.1 Batteryless Wireless Configuration Memory Mode
This mode (see Figure 16, field A) shows the main function of the TMS37157 (PaLFI). The memory of the
TMS37157 can be altered without having a connection to a battery. Typical applications for this function
could be configuration data stored in the TMS37157 memory without involvement of the microcontroller
and without supply voltage. The stored data can be accessed after the microcontroller is activated and use
the stored date for configuration or calibration purposes.
1. Enter the number of times the green LED should flash.
2. Program the corresponding page in the TMS37157 memory (programs Page 9) by clicking Configure
Push Button.
3. Connect the target board to the battery board and set jumper JP1 (or the eZ430-RF connected to the
host PC).
4. Press the push button on the target board (see Figure 17).
5. The green LED flashes the programmed number of times.
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Figure 17. TMS37157 Target Board
8.1.2 SPI Access to MSP430 Mode
This mode (see Figure 16, field B) perform an MSP Access Command to the TMS37157. The RFID base
station sends data to the TMS37157, which is forwarded to the MSP430 via the SPI interface. The
MSP430 performs a certain action, depending on to the received instruction and sends back the response
data to TMS37157 via the SPI and to the base station via the RF interface.
For the button "Flash LED (with battery)":
•The target board must be connected battery board and JP1 must be set. This drives the MSP430 from
the battery.
•Choose which LED (green or red) should flash and enter the number of times the LED should flash. A
click on the button performs the desired action.
For the button "Flash LED (without battery)":
•The target board must be disconnected from the battery board. The MSP430 is supplied from the
induced voltage of the magnetic field generated by the base station.
•Choose which LED (green or red) should flash and enter the number of times the LED should flash.
Click on Flash LED (without battery) to perform the desired action. The TMS37157 target board must
be within the operating field of the base station (2 to 3 cm).
NOTE: The "Flash LED (without battery)" performs these commands:
1. A Read Page 3 Command (check if TMS37157 is in range)
2. A Battery Charge Command (power up MSP430 and charge capacitor)
3. An MSP Access Command (deliver number of LED flashes to MSP430)
4. A Battery Charge Command (power the MSP430 to drive the LEDs)
5. A Read Page 3 Command (stop charging)
8.1.3 Check Battery Level Mode
This mode (see Figure 16, field C) displays the charge level of the connected battery.
1. Ensure that the battery board is connected to the target board and the jumper is set.
2. Click Check Battery. The battery status appears in the field next to the Texas Instruments logo.
8.2 Direct Access Mode
The Direct Access mode enables the user to use all functions the TMS37157 offers. Every memory page
can be read, programmed, or locked. Locked pages are read only and cannot be reprogrammed.
To read a page of the EEPROM, choose the page in the dropdown list and click Read Page.
Figure 18 shows a successful read of Page 3 of an RFID transponder. The Lock Status of the
corresponding page is displayed after every Read command execution (field on the right side shows Page
Unlocked).
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eZ430-TMS37157 Demo www.ti.com
Figure 18. RFID Demo Software: Direct Access Mode
Pages that are not locked can be programmed with the Program Page command (see Figure 19). Choose
the corresponding page, enter the data (5 bytes, MSB first) and click Program Page.
The status of the programming is displayed next to the data programmed into the EEPROM page. If the
target board is too far away from the base station, a Read Page command may be possible but a Program
Page command may not be executed.
Figure 19. RFID Demo Software: Direct Access Mode, Program Page
20 eZ430-TMS37157 Development Tool SLAU281B–November 2009–Revised March 2010
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