UM0213 User Manual
STFPC311 Evaluation Board Hardware Description and User Guide
Introduction
The STFPC311 is an evaluation board designed for quick and easy evaluation of STFPC311 Vacuum Fluorescent Display (VFD) Controller. The key features include:
17-segment, 11-digit VFD, 15 programmable Front Panel keys, 2 switches, 4 LEDs, 2 LEDs to display Standby and Mute status, 1 InfraRed (IR) Connector for remote control (RC), Parallel Port for communication with PC, External power supply to power up the controller and VFD Filament, and STFPC311 Graphical User Interface (GUI) to demonstrate communication to the VFD controller as it has been interfaced with a micro controller.
The evaluation board package includes:
1 STFPC311 board (see Figure 1), STFPC311 GUI, and User manual. STFPC311 Evaluation Board v0.1
Figure 1.
March 2006
Rev 1
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Table of Contents
UM0213 - User Manual
Table of Contents
1 Getting Started . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
1.1 1.2 1.3 STFPC311 Demo Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Software Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Connecting the Board . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
2
Star ting the Demo Application . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
2.1 2.2 2.3 2.4 WDT AND STANDBY Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 COMMAND Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
2. 2. 1 Configuring the Display . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
WRITE DISPLAY MEMORY Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Returning to the COMMAND Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2. 4. 1 2. 4. 2 2. 4. 3 W RITE LED PORTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 READ SWITCHES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Setting the READ Frequency . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
2.5
RC and HOTKEYS CONFIG Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
2. 5. 1 2. 5. 2 2. 5. 3 2. 5. 4 2. 5. 5 Selecting the Remote Control Protocol . . . . . . . . . . . . . . . . . . . . . . . . . 11 Device Address Setting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 RC Hot Key Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11 Front Panel Hotkeys . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 STANDBY and Wake-up Sequence . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
2.6
RTC Tab . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
Appendix A Remote Control Protocols. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
A.1 A.2 A.3 A.4 A.5 A.6 RC5 Protocol Key Interpretation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 RC5 Hot Key Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 RC6 Protocol Key Interpretation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 RC6 Hot Key Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 NEC Protocol Key Interpretation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 NEC Hot Key Configuration. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
Appendix B Front Panel Key Banks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 3 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
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List of Figures
List of Figures
Figure 1. Figure 2. Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Figure 9. Figure 10. Figure 11. Figure 12. Figure 13. Figure 14. Figure 15. Figure 16. Figure 17. Figure 18. Figure 19. Figure 20. Figure 21. Figure 22. STFPC311 Evaluation Board v0.1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 STFPC311 Evaluation (Demo) Board Layout . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Pow er Supply Connection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Configure Parallel Port . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 READY HIGH Selection . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 COMMAND Tab for Display Configuration - Clicked ON . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 VFD Filament Data Display Selection. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Command Tab Options. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 Front Panel Hot Key Configuration - as STANDBY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Setting the Alarm Using the RTC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13 Reading the RC5 STANDBY Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 RC5-based Remote Control STANDBY Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 RC5 Protocol STANDBY Key Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 Reading the RC6 STANDBY Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 RC6-based Remote Control STANDBY Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18 RC6 Protocol STANDBY Key Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 Reading the NEC Remote Control KEY1 Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 NEC-based Remote Control KEY1 Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 NEC Protocol KEY1 Code Waveforms . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Bank1 Keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Bank2 Keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23 Bank3 Keys. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
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Getting Started
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1
Getting Started
The board needs to be powered externally (supply is not provided). The characteristics of an appropriate power supply (group) are:
30VDC to 24VDC (drives the VFD Filament), 3.3VDC (drives the VFD Controller), 12VDC (drives other components, such as the transistor), and 3 connectors with a common ground which are provided on the board (see Figure 2).
1.1
STFPC311 Demo Board Layout
Figure 2. STFPC311 Evaluation (Demo) Board Layout
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1.2
Software Installation
The GUI is supplied in a ZIP file, "STFPC311_GUI.ZIP". Unzip this file to obtain the STFPC311_GUI.exe setup file. Double-click on the setup file to install the GUI on the host system.
1.3
Connecting the Board
1. 2. Plug the power supply group into the board (see Figure 3). Connect the parallel cable to the host system (see Figure 2 on page 4). Power Supply Connection
Figure 3.
GND
VEE 24V
VCC 3.3V
VCC 12V
AI12217
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Starting the Demo Application
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2
Starting the Demo Application
1. 2. 3. 4. Star t the STFPC311_GUI. Configure the parallel port ("LPTx Setting" window) using the GUI (see Figure 4). Turn the evaluation board power ON. Select the READY HIGH radio button (within 10 seconds of power-on), which is located on the WDT and STANDBY tab (see Figure 5 on page 7). The Standby and Mute LEDs on the board will light up. Note: When the GUI is invoked for the first time, the READY HIGH radio button is selected.
2.1
WDT AND STANDBY Tab
The "Timer Setting" pull-down menu in the "WATCHDOG TIMER" frame enables the user to specify the Watchdog Timer's time-out period. The "Reset Timer" button is used to reset the Watchdog Timer count. The "WATCHDOG ACTION SETTING" frame enables the user to program the time-out event which tells the VFD controller to either go into STANDBY mode or remain in its current state ("No Action") by selecting the appropriate radio buttons (see Figure 5). Configure Parallel Port
Figure 4.
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Starting the Demo Application
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2.2
2.2.1
COMMAND Tab
Configuring the Display
Selecting the appropriate digits, segments, and dimming settings to configure the VFD (see Figure 6). Figure 6. COMMAND Tab for Display Configuration - Clicked ON
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2.3
WRITE DISPLAY MEMORY Tab
This tab allows the user to select the data to be seen on the VFD controller (see Figure 7). Figure 7. VFD Filament Data Display Selection
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2.4
2.4.1
Returning to the COMMAND Tab
WRITE LED PORTS
The "WRITE LED PORTS" frame allows the user to switch the demo board LEDs (LED1 to LED4, respectively) ON or OFF (see Figure 8).
2 .4 .2
READ SWITCHES
Clicking on the "READ SWITCHES" button allows the user to read the status of the demo board switches (SW1 and SW2, see Figure 8).
2.4.3
Setting the READ Frequency
One can select the time period after which the status of the Front Panel keys is to be read. The same option is also available for READ RC DATA (see Figure 8) and RTC STATUS (see Figure 10 on page 13). Figure 8. Command Tab Options
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Starting the Demo Application
2.5
2.5.1
RC and HOTKEYS CONFIG Tab
Selecting the Remote Control Protocol
The STFPC311 supports three Remote Control (RC) protocols, RC5, RC6, and NEC (see Appendix A: Remote Control Protocols on page 14 for RC protocol details). Select the appropriate protocol using radio buttons in "REMOTE CONTROL PROTOCOL" frame on the RC AND HOTKEYS CONFIG tab (see Figure 9 on page 12). The RC5 and RC6 protocols use Bi-phase modulation Manchester encoding, in which logic transitions represent a logic high or logic low signal (see Appendix A on page 14 for details). The NEC protocol uses pulse distance bit encoding. A logic '1' takes 2.25ms to transmit, while a logic '0' takes only 1.12ms. A message is started by a 9ms Auto Gain Control (AGC) burst, which is followed by a 4.5ms space, which is then followed by the Address and Command. The Address and Command are transmitted twice. The second time, all of the bits are inverted and can be used for verification of the received message.
2.5.2
Device Address Setting
The STFPC311 needs to be configured with the address of the Remote Control with which it is intended to be interfaced. Specify the address of the Remote Control in the text box in the "RC ADDRESS" frame on RC AND HOTKEYS CONFIG tab (see Figure 9). For example, the address for the RC5 protocol is 0x00 (see Table 1).
2.5.3
RC Hot Key Configuration
The STFPC311 GUI supports 24 Front Panel keys, 8 of which may be programmed as RC hot keys using check boxes in the "RC HOTKEYS CONFIGURATION" frame on RC AND HOTKEYS CONFIG tab in Figure 9 (see Appendix A on page 14). For example, the RC hot key configuration for STANDBY for the RC5 protocol is 0x0C (see Table 1). Table 1. RC Protocol Address and STANDBY RC Hot Key
Protocol RC5 RC6 N EC Address(1) 0x00 0x27 0x02 RC Hotkey Configuration for STANDBY 0x0C 0x0C 0x88
1. Different remotes using the same protocol may have different device addresses.
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2.5.4
Front Panel Hotkeys
The "FRONT PANEL HOTKEYS" frame on the RC AND HOTKEYS CONFIG tab in Figure 9 shows the settings used to configure the KS1/K2 key as a hot key (see Appendix B: Front Panel Key Banks on page 23 for more Front Panel key details). Figure 9. Front Panel Hot Key Configuration - as STANDBY
2.5.5
STANDBY and Wake-up Sequence
To put the VFD controller in STANDBY mode, choose the "READY LOW" option in the "STANDBY CONTROL" frame on the WDT AND STANDBY tab. When the VFD controller is in STANDBY mode, there are two ways to wake-up the controller: a) b) pressing the remote control STANDBY key, and pressing the Front Panel Hotkey.
After the controller wakes up from STANDBY mode choose the "READY HIGH" option in the "STANDBY CONTROL" frame on the WDT AND STANDBY tab within 10 seconds, otherwise, the controller will go into STANDBY mode again.
The decoded IR commands are passed on to the main processor through the serial interface by sending 3 bytes of data. Labels in "READ RC DATA" frame on COMMAND tab represents the 24 bits of these 3-byte data frames.
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Starting the Demo Application
2.6
RTC Tab
The "Time Settings" frame shows the current system date and time, but these can also be configured by the user as well. To configure the date and time at which the RTC interrupt is to be generated (see Figure 10): 1. 2. Set the date and time in the "Alarm Settings" frame. Specify the frequency at which the RTC interrupt status is to be read using the "Read Frequency" pull-down menu in the "Status" frame.
Note: The color of IRQ label changes to green when the RTC interrupt is generated. Note: If "Read Date/Time" check box is selected, the Time display in "Time Settings" frame follows system time. Figure 10. Setting the Alarm Using the RTC
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Appendix A
A. 1
Remote Control Protocols
RC5 Protocol Key Interpretation
Figure 11 shows the value in the 3-byte data frame when the RC5 remote control STANDBY key is pressed.
The RC key interpretation of these bit values for the 3-byte data frames for the various STFPC311 protocols is as follows:
B1 to B5: Device Address B6: Start bit B7: Toggle bit B8-B15: Key Code Data B16-B24: Stuffed bits (ignored)
Note:
See RC and HOTKEYS CONFIG Tab on page 11 for protocol information.
Figure 11. Reading the RC5 STANDBY Data
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Remote Control Protocols
A. 2
RC5 Hot Key Configuration
Figure 12 shows the STFPC311 being configured to interface with the RC5 protocol-based remote control.
The RC5 hot key addressing for STANDBY configuration is as follows:
RC Address: 0x00 Hot Key: STANDBY (code: 0x0C)
The RC5 protocol uses Bi-phase modulation Manchester encoding in which a low-to-high transition represents a logic high signal, and a high-to-low transition represents a logic low signal.
Note:
See RC and HOTKEYS CONFIG Tab on page 11 for protocol information.
Figure 12. RC5-based Remote Control STANDBY Configuration
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Figure 13 shows the signal at the IR sensor output when the RC5 STANDBY key is pressed. The output shown is an inversion of the IR signal received by the IR sensor.
Figure 13. RC5 Protocol STANDBY Key Waveforms
Start Bits Toggle Bit MSB 5-bit Address LSB MSB 6-bit Command LSB
1
1
0
0
0
0
0
0
0
0
1
1
0
0
AI12253
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Remote Control Protocols
A. 3
RC6 Protocol Key Interpretation
Figure 14 shows the signal at the output of IR sensor when STANDBY key of RC6 remote control is pressed.
The RC key interpretation of these bit values for the 3-byte data frames for the various STFPC311 protocols is as follows:
B1-B8: Device Address B9: Start bit B10: Toggle bit B11-B18: Key Code Data B19-B24: Stuffed bits (ignored)
Note:
See RC and HOTKEYS CONFIG Tab on page 11 for protocol information.
Figure 14. Reading the RC6 STANDBY Data
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A.4
RC6 Hot Key Configuration
Figure 15 shows STFPC311 being configured to interface with the RC6 protocol-based remote control.
The RC6 hot key addressing for the STANDBY configuration is as follows:
RC Address: 0x27 Hot Key: STANDBY (code: 0x0C)
The RC6 protocol uses Bi-phase modulation Manchester encoding in which a low-to-high transition represents a logic low signal and a high-to-low transition represents a logic high signal. Note: These transitions are the opposite of those in the RC5 protocol.
Note:
See RC and HOTKEYS CONFIG Tab on page 11 for protocol information.
Figure 15. RC6-based Remote Control STANDBY Configuration
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Remote Control Protocols
Figure 16 shows the signal at the IR sensor output when the RC6 STANDBY key is pressed. The output shown is an inversion of the IR signal received by the IR sensor.
Figure 16. RC6 Protocol STANDBY Key Waveforms
Address Mode MSB LSB MSB Data LSB
000 LS SB TR
0010011100001100
AI12254
Notes:
1. LS: Leader Start Pulse 2. SB: Start Bit 3. TR: Trailer Bit
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A.5
NEC Protocol Key Interpretation
Figure 17 shows the value in 3 byte data frame when KEY1 of NEC remote is pressed.
The RC key interpretation of these bit values for the 3-byte data frames for the various STFPC311 protocols is as follows:
B1-B8: Device Address B9: Start bit B10: Toggle bit B11-B18: Key Code Data B19-B24: Stuffed bits (ignored)
Note:
See RC and HOTKEYS CONFIG Tab on page 11 for protocol information.
Figure 17. Reading the NEC Remote Control KEY1 Data
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Remote Control Protocols
A. 6
NEC Hot Key Configuration
Figure 18 shows STFPC311 being configured to interface with NEC protocol-based remote control.
The NEC hot key addressing for the KEY1 configuration is as follows:
RC Address: 0x02 Hot Key: KEY1 (code: 0x88)
A command is transmitted only once, even when the key on the remote control remains pressed. Every 110ms, a repeat code is transmitted for as long as the key remains down. This repeat code is simply a 9ms AGC burst, followed by a 2.25ms space and a 560s burst.
Note:
See RC and HOTKEYS CONFIG Tab on page 11 for protocol information.
Figure 18. NEC-based Remote Control KEY1 Configuration
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Figure 19 shows the signal at the IR sensor output when the NEC remote control KEY1 is pressed. The output shown is an inversion of the IR signal received by the IR sensor.
Figure 19. NEC Protocol KEY1 Code Waveforms
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Front Panel Key Banks
Appendix B Front Panel Key Banks
STFPC311 has key data memory of size 2x12, which means it can support up to 24 Front Panel keys. These keys are divided into 3 banks of 8 keys each. To establish relationship between the keys on board and key labels in the "READ FRONT PANEL KEYS" frame on the Command tab, replace occurrences of "S" by "KS". For example, Key label "K2S12" corresponds to the KS12/K2 Key on the evaluation board. In Figure 20, Figure 21, and Figure 22, the keys in the color "Blue" represent the keys available on the STFPC311 evaluation board. Note: Only 8 keys out of 24 keys are programmable as hot keys. Only one bank of 8 keys can be used at one time as hot keys. Figure 20. Bank1 Keys
KS1/K1 LSB KS1/K2 KS2/K1 KS2/K2 KS3/K1 KS3/K2 KS4/K1 KS4/K2 MSB
AI12255
Figure 21. Bank2 Keys
KS5/K1 LSB KS5/K2 KS6/K1 KS6/K2 KS7/K1 KS7/K2 KS8/K1 KS8/K2 MSB
AI12256
Figure 22. Bank3 Keys
KS9/K1 LSB KS9/K2 KS10/K1 KS10/K2 KS11/K1 KS11/K2 KS12/K1 KS12/K2 MSB
AI12257
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Revision History
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Revision History
Table 2.
Dat e 21-Mar-2006
Document Revision History
Revision 1 Initial release. Changes
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