STFPC311 LED evaluation board hardware description and
Contents
1. MRC HOTKEYS CONFIGURATION 1 Iv jolo lo lo 1 Wo o s r Moo lolo lo lo lo 2 rr Mo lo lolo lo lo lo 6 r moo 3 7 mo lolo lo lo lo lo 7 7 Mo lolo Jo lo lo lo 4 FT Mo lolo lo lo lo lo 8 Ir mo lolo lo lo lo lo MSB LSB SB M LSB SEND Figure 15 shows the signal at the IR sensor output when the RC6 Standby key is pressed The output shown in an inversion of the IR signal by the IR sensor Figure 15 Standby Key for RC6 protocol 01010 10 0 1 0101 1 1 0 0 0 0 1 10 0 B TR Address Mode MsB Data LSB MSB LSB pod og gd MASA LS Leader Start Pulse SB Start Bit TR Trailer Bit 17 25 www BDTIC com ST Remote control protocols UMO276 A 3 NEC protocol A 3 1 NEC protocol key interpretation Figure 16 shows the value of the 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 e AO0to A7 device Address eS Start bit e T Toggle bit e DOtoD7 Key Code Data e Others Stuffed bits ignored Note See Section 2 4 RC and Hotkeys Config tab on page 10 for more protocol information Figure 16 Reading the NEC remote control key1 data File Settings Help COMMAND RC AND HOTKEYS CONFIG WRITE DISPLAY MEMORY WOT AND STANDBY RTC2. WRITE LED PORTS READ FRONT PANEL KEYS Eo Eo Ks1 ks2 K53 K5 4 K55 LED3 LED4 write Ks6 ksz Ks8 ksa sto TREAD SWITCHES KS11 K512 K513 K514 KS15 swt SW2 a Su Read frequency Read once Read DISPLAY CONFIGURATION ON Display Mode Dimming Setting OFF 4 Digits 7 Segments hne y READ RC DATA D7 De o 4 ps3 p2 pi o rt s Readfrequeny Once y Read a7l a6 asl a4 a3 az a ao z es 18 25 ky www BDTIC com ST UMO276 Remote control protocols A 3 2 Note NEC hotkey configuration Figure 17 shows STFPC311 being configured to interface with NEC protocol based remote control The NEC hotkey addressing for the Key1 configuration is as follows e RC Address 0x02 e Hotkey 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 9 ms AGC burst followed by 2 23 ms space and a 560 us burst See Section 2 4 RC and Hotkeys Config tab on page 10 for more protocol information Figure 17 NEC based remote control Key1 configuration lala File Settings Help COMMAND RC AND HOTKEYS CONFIG WRITE DISPLAY MEMORY WOT AND STANDBY RTC REMOTE CONTROL PROTOCOL RC ADRESS RC Disabled 0 0 0 0 0 0 D SB MSB LSB C RCS FRONT HOTKEYS M52 A eis K515 BANKI ol 0 0 0 0 C RC6 KS7 kso KS9 sa
3. ky UM0276 User manual STFPC311 LED Evaluation board hardware description and user manual Introduction The STFPC311 LED is an evaluation board designed for the quick and easy evaluation of the STFPC311 Vacuum Fluorescent Display Controller used to drive LED Light Emitting Diode displays Its key features include One 4 digit 7 segment LED display Fifteen programmable front panel keys Two switches Four LEDs Two LEDs to display Standby and Mute status respectively One InfraRed Connector for remote control Parallel Port for communication with PC External power supply STFPC311 graphical user interface GUI that simulates communication between the VFD controller and a microcontroller The Evaluation board package includes One STFPC311 LED Evaluation board STFPC311 Evaluation software program GUI User manual STFPC311 LED Evaluation board v1 0 a E ke e te 2 2 Lo April 2007 Rev2 1 25 www st com www BDTIC com ST Contents UMO276 Contents 1 Getting started icin nn cin vin i cde 68 x8 Cani M bir a Cr oe 4 1 1 Installing the evaluation software 0 00 ee 4 1 2 Connecting the evaluation board 00 0 c eee eee 4 2 Using the evaluation software eeeeeeeeeeese 5 2 1 WDT and Standby tab 22sec ccncscameeccesnnee hase reeesganee RA 6 22 CDommand AD ss quce dioe REGERE E RR RES 7 2 2 1 Display configuration seyo sessen riia UEKI E E EE 7
4. 2 2 2 Write LED ports iso cem ensi bee ad ee nen 7 2 2 3 Read switches sss esses res RR RRRIEPEEE a a e EA 7 2 2 4 Setting the Read frequency oococcocccccoc lees 8 2 2 5 Read RC Data ooccoccccccc hr 9 2 2 6 Read front panel keys oooccocooccccno ees 9 23 Write Display Memory tab 0 020 esee 9 2 4 RC and Hotkeys Config tab 0 00 cece eee 10 2 4 1 RC protocol sasuai Mia tithe whi biter doe ble bedhead 10 2 4 2 RG address sss oret e de da diee ee yet EGG eae de 10 2 4 3 RC and hotkey configuration llle 11 2 4 4 Front panel hotkeys ooooocccococco eren 11 2 4 5 Front panel hotkey configuration llle 11 2 5 RTG tab m rre 12 3 Revision history is sse simon ti nnnm ne Rn RC 8 Du ce 24 2 25 ky www BDTIC com ST UMO276 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 LED Evaluation board lay0Ut ooooccccccccocn eee 4 Parallel port configuration o ooocococcoco I eee 5 READY HIGH selection 0 00 ccc hrs 6 Display configuration ON position ooooccoccccconccn III 7 Write LED Ports and Read Switches ooococcoccoccccc eee 8 Read frequency selection o ooooooccocooo eh 8 L
5. Select the required check boxes LED1 to LED4 and click Write to switch ON the corresponding LEDs as shown in the example in Figure 5 2 2 3 Read switches The Read Switches button enables the user to read the status of the STFPC311 evaluation board switches Click Read to display the status of switches SW1 and SW2 A green background indicates that the corresponding switch is closed ON as shown in Figure 5 ky 7 25 www BDTIC com ST Using the evaluation software UMO276 Figure 5 Write LED Ports and Read Switches File Settings Help STFPC311 MA E COMMAND RC AND HOTKEYS CONFIG WRITE DISPLAY MEMORY wor AND STANDBY RTC o _ 4 Digits 7 Segments WRITE LED PORTS READ FRONT PANEL KEYS Y LEDI LED2 y a KS1 Ks2 KS3 Ks4 Ks5 LED3 v LED4 Write KS6 KS Ksa Ks9 K510 READ SWITCHES K511 K512 K513 K514 K515 Swi swe Read frequency Read once y Read MDISPLAY CONFIGURATION Display Mode Dimming Setting READ RC DATA DS D4 D3 D2 D1 Read frequency Read po t s a as az a1 a Jonce Y 2 2 4 Setting the Read frequency The user can select the time period after which the status of the Front Panel Keys is read The same option is also available for RC Data Figure 6 Select the correct frequency O
6. xsi0 C BANK2 Flo lolo Jo lo lo lo Ks2 KS4 e NEC A C BANKS Elo lolo lolo lo lo o lo To To To To SEND RC HOTKEYS CONFIGURATION 1 fi lo lo lo Milo lo lo s r moo 2 7 moo lo lo lo lo 6 Ir Filo lo lo lo lo lo lo 3 7 mo oo lo lo lo lo 7 7 Polo lolo lo lo lo 4 Fr moo amp I moo MSB LSB MSB LSB 19 25 www BDTIC com ST Remote control protocols UMO276 20 25 Figure 18 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 18 NEC Protocol KEY1 code waveform I l l ia i AGC Burst Space LogicO Logic1 www BDTIC com ST UMO276 Front panel key banks Appendix B Front panel key banks STFPC311 has key data memory of size 2x12 which means it can support 24 front panel hotkeys These keys are divided into 3 banks of 8 keys each Figure 19 Keys in Bank1 KS3KKi KS3 K2 KS4 K1 KS4 K2 cu MEE v Keone UE LSB MSB Figure 20 Keys in Bank2 KS6 K1 KS7 K1 KS7 K2 KS8 K1 KS8 K2 esr ose ED soe LSB MSB Figure 21 Keys in Bank3 Ke ksone ERA rior FO Ol RUSA LSB MSB Table 2 Bill of materials BOM Qty Reference footprint Value generic part Description Manufacturer number j Berg strip for 1 1 BT1 BAT 2 b
7. Note Each time the GUI is invoked the Ready High radio button is selected by default Figure 2 Parallel port configuration 5 Jal File Settings Help COMMAND RC AND HOTKEYS CONFIG WRITE DISPLAY MEMORY WDT AND STANDBY RTC WRITE LED PORTS READ FRONT PANEL KEYS a B Ks1 Ks2 Ks3 Ks4 Ks5 LED3 LED4 Write K56 KS K58 K59 K510 READ SWITCHES KS11 K512 K513 K514 K515 sw swz x sw swe ELE ad Read frequency Sl Parallel Port OEA once Red DISPLAY CONFIGURATION OK Cancel ON Dimming Setting orr 4 Digits 7 Segments ue READ RC DATA D5 D4 D3 D2 Dt Read frequency Once bd Read po t s a asi a2 a ao z es ky 5 25 www BDTIC com ST Using the evaluation software UMO276 2 1 WDT and Standby tab The WDT and Standby tab enables the user to configure the Watchdog Timeout and Standby control settings In the Watchdog Timer pane use the Timer Setting pull down menu to specify the Watchdog Timer timeout period Select OFF or a timeout period from 1 to 15 seconds The default value is 10 seconds Press Reset Timer to reset the Watchdog Timer counter The Watchdog Action Setting pane defines the action that takes place when the Watchdog Timeout expires Select No Action to do nothing or Issue Standby to switch the VFD controller into Standby mode The STFPC311 continuously monitors the status of the READY pin Once the READY pin goes low Mute LED is OFF on the board and within the preset tim
8. 1 Figure 22 UMO276 www BDTIC com ST Revision history UMO276 3 24 25 Revision history Table 3 Revision history Date Revision Changes 31 Aug 2006 1 Initial release 02 Apr 2007 2 Bill of materials BOM and Schematic STFPC311 LED added www BDTIC com ST UMO276 Please Read Carefully Information in this document is provided solely in connection with ST products STMicroelectronics NV and its subsidiaries ST reserve the right to make changes corrections modifications or improvements to this document and the products and services described herein at any time without notice All ST products are sold pursuant to ST s terms and conditions of sale Purchasers are solely responsible for the choice selection and use of the ST products and services described herein and ST assumes no liability whatsoever relating to the choice selection or use of the ST products and services described herein No license express or implied by estoppel or otherwise to any intellectual property rights is granted under this document If any part of this document refers to any third party products or services it shall not be deemed a license grant by ST for the use of such third party products or services or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoever of such third party products or services or any in
9. DTIC com ST 23 25 Front panel key banks Schematic STFPC311 LED s t 4 T uogsoxg sopeay 1omod pue euis T 7X9 19pvo ong aE snjg somog ES M8 gt T ma 6 NATA xoa t 307 vau js 1 UN ano 1 a Aus i Kava IX gt I sa nog zog Nid Amol L qugor vas GND XD WIS AEEDOA T 60 80 37795 LvaA c TWR 557 zar ex Our TX E i dront T AEEJOA 20 x ASTIDA A01 T THESE w yaana od 6nr ISLIP t sn tl vvvvvwvvv JO JO Jo O JO JO JO Jo LODZAbL pa EERE E zer Ke QNO AERO ad Ador o o lo lo lo o lo lo lo lo pueg 10024 2 E Ve vc y T so Skee bak Ec xr AS i EEEEBBER DRE adaida dadas gga a a peed Jaa vi NYS EBEBEERP PEP a 2 2 4 2 2 2 4 amp a g 4 4 2 g 1 DS AEEDOA A E js
10. EAD SWITCHES KS11 Ks12 K513 K514 K515 Swi SWZ swt swa Read frequency Read once Read DISPLAY CONFIGURATION Display Mode Dimming Setting 1 16 READ RC DATA D D6 D5 D4 D3 D2 Di DO T El a A6 45 A4 A3 A2 Al AD Read frequency owe y Read Once RC6 hotkey configuration Figure 14 shows STFPC311 being configured to interface with the RC 6 protocol based remote control The RC6 hotkey addressing for the Standby configuration is as follows RC Address 0x27 Hotkey 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 These transitions are the opposite of those in the RC5 protocol See Section 2 4 RC and Hotkeys Config tab on page 10 for more protocol information www BDTIC com ST UMO276 Remote control protocols Note 2 Figure 14 RC6 based remote control Standby configuration File Settings Help lx COMMAND RC AND HOTKEYS CONFIG WRITE DISPLAY MEMORY WOT AND STANDBY RTC REMOTE CONTROL PROTOCOL RC ADRESS RC Disabled o lo 11 To lo Ta T1 MSB LSB Soe C RC5 FRONT HOTKEYS ast gs BANKI o lo lo lo lo lo f1 jo RC6 KS xs X59 sa xsip C BANK2 o lo lo lo lo lo lo C NEC r ksi Siess Kss C BANK3 Fo bb boon o lo lo To lo To SEND
11. ED data display selection ooooooooocccooooor RII 9 Remote control and hotkey configuration llle 10 Setting the alarm using the RTC ooocccccccc eta 12 Reading the RC5 Standby data oooccccccccco ese 13 RC5 based remote control Standby configuration lille lesen 14 RC5 protocol Standby key Wavef0rM ooooococcoco seh 15 Reading the RC6 Standby data 0 2c tees 16 RC6 based remote control Standby configuration 000000 e eee 17 Standby Key for RC6 protocol oooococccoc rs 17 Reading the NEC remote control key1 data liliis 18 NEC based remote control Key1 configuration 0000 eee eee 19 NEC Protocol KEY1 code waveform ooccccccoco res 20 Keys in Bank iusso cea RR ka eee x eee E RO Ee CRI Kk RUP Wn ere d 21 Keys In Bank2 vio EAR beet cue PPR ees Pa E Aa ERES AA AEDE 21 Keys in Bank orcarina esa ae aw a cu he ea kw oo ee ede ie ee c Redde 21 Schematic STFPC311 LED 0 0 0 0 eens 23 3 25 www BDTIC com ST Getting started UMO276 1 1 Note 1 2 4 25 Getting started To start evaluating the STFPC311 Vacuum Fluorescent Display Controller you must e Install the Evaluation software e Connectthe Evaluation Board to the PC running the Evaluation software e Connectan external power supply to the Evaluation Board Figure 1 STFPC311 LED Evaluation board layout Installing the evaluation software A
12. I xm z z 1ompnpounq ur EA pe fe fe fi f n f n flo f n fio POH LO Lysod Lysod LO EE bEBPPPPPP no 195 T5 105 T5 alololololo so lolo t on Beee eaae BN auo o oro 60 R 1 fio lo lo lo ho A NOD z I d a a Ten os 9IIIO ELDAS RAR 8 aaa anor UR siquowos BARS ii 5 E 268 IHA E n a 9 m TIdBID SIDHS KES Nr VIVAN A d mm EIRID 9TOAS AQVaY bed NEN sra Wescaa e i ZIGRID LIDAS TAIA 4 Lysoa Lysoa LOT Lysoa TIGRIS LOGS TAI fe em oranip 6roas GND 000 T WAS TS DS TS excede an T Joano oo ET ES 15 9 s go ec SR id D o se gt lo T OI Do 9c d uor Inr maras O 2 za a Es El 5 LE QUID s ES SITIS sc am ais Tas PAU nouos CTT E 6t AN 2 g eoo PNE Ue n i AEEOOA 8 3 BE s RENE T 9 s xavmis O iE m SESSZHRZSESEE sior AS ve o AETIOA a doo vas PO 6 LrSOS LvSOS LvSOS LrSOS l amp l amp lslsis al vo AI t 61 lo r T DS L PS DS WS TUS Eebebe vr BEEN 1 T 9 BEBE E o AEEJOA 8 o 0 0 co 10 vIDHAPL t lo e 2 INOT ids Or wauq wautiag ATI eve eee aa egg Tu pu EE EEEEEEEEBEEE 389999 wes pp EPPEPERECEER BS el zio lola Els a EI Er E Noo GET wajip 01 12910 01 WoIsTAOI REE EER RE EEK EEE EE EEE ERR A RARER PEEEEREG SEE CEEEEEEEEEPEPEERE ONTOS BRERBREES EPEERERESEEISS Eis ISIS ea PrP BBEBBEES oas lt LA 72M te CN SOAS 2 A s Je poas E o 3 6 p S isor aS tDHS e eS A ESOA i c 2 BSBRBSRRRSSESSESRRESHE SSSA va eI T I in 0 PPR Tat 9 s E z
13. ND RC AND HOTKEYS CONFIG WRITE DISPLAY MEMORY WDT AND STANDBY RTC Time Settings Date Thursday 15 June 2006 Time 12 27 18 4d SEND Alarm Settings Date 15 June Time 12 2712 Repeat Mode once per Year S Enable alarm Iv SEND Status Read frequency Read Date Time Iv 100 ms y IRQ clear IRQ www BDTIC com ST UMO276 Remote control protocols AppendixA Remote control protocols A 1 RC5 protocol A 1 1 RC5 protocol key interpretation Figure 10 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 e AO0to A4 Device Address eS Start bit eT Toggle bit e DO to D5 Key Code Data e Others Stuffed bits ignored Note See Section 2 4 RC and Hotkeys Config tab on page 10 for more protocol information Figure 10 Reading the RC5 Standby data lola File Settings Help COMMAND RC AND HOTKEYS CONFIG WRITE DISPLAY MEMORY WDT AND STANDBY RTC WRITE LED PORTS READ FRONT PANEL KEYS LED1 LED2 LED3 LED4 Write K56 KS KSe KS9 K510 Ks1 KS2 KS3 K54 Ks5 READ SWITCHES Ks11 KS12 K513 K514 K515 Swi Sw2 wi sw Read frequency Read once X Read DISPLAY CONFIGURATION ON Display Mode Dimming Setting
14. OFF la Digits 7 Segments 116 READ RC DATA E c EH o HH Peedfrequency DO a a A4 A3 A2 Al AD 100 ms 13 25 www BDTIC com ST Remote control protocols UMO276 A 1 2 Note 14 25 RC5 hotkey configuration Figure 11 shows the STFPC311 being configured to interface with the RC5 protocol based remote control The RC5 hotkey addressing for Standby configuration is as follows e RC Address 0x00 e Hotkey 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 See Section 2 4 RC and Hotkeys Config tab on page 10 for more protocol information Figure 11 RC5 based remote control Standby configuration File Settings Help COMMAND RC AND HOTKEYS CONFIG WRITE DISPLAY MEMORY WDT AND STANDBY RTC REMOTE CONTROL PROTOCOL RC ADRESS RC Disabled o lo lo lo lo lo lo EE MSB LSB seo FRONT HOTKEYS sia SM E 11 KSI BANKI lo lo lo lo lo lo Mo KS ss KS9 ks8 KS10 C BANK2 Fo o oo c X52 sp NS S c3 quss z BANK3 Maa SEN RC HOTKEYS CONFIGURATION Iv ooo lo 1 Mo lo Fr Bolo lolo lo lo lo T Mo lolo lo lo lo Jo 7 Mo lolo lo lo lolo T Mo lolo lo lo lo lo 17 Mo lolo lo lo lo lo Tr Mo lolo lo lo lo Jo 17 Mo lolo lo lo lo lo MSB LSB MSB LSB SEND
15. ZIP file STFPC311_GUI ZIP contains the Evaluation software This software runs on all Windows operating system platforms 1 Unzip this file to extract the STFPC311 GUl exe setup file on the host PC system 2 Double click on the setup file and follow the instructions displayed on the PC screen to install the software GUI Ensure that the io dll file included in the ZIP file is extracted to the same folder as the EXE file Connecting the evaluation board The Evaluation Board requires an external power supply supply not included An appropriate power supply must have two connectors one for the 3 3 Vpc reference supply and the other for the ground provided on the board Figure 1 1 Connect the parallel cable to the host system 2 Plug the external power supply into the board www BDTIC com ST UMO276 Using the evaluation software 2 Using the evaluation software 1 Start the STFPC311_GUI evaluation software application 2 Configure the parallel port open the Settings tab from the main menu and select LPTx Addr and enter the correct value as shown in Figure 2 Default setting is 0378 3 Switch ON the STFPC311 Evaluation Board 4 Within 10 seconds after power on select the Ready High radio button located on the WDT and Standby tab Figure 3 The Standby and Mute LEDs on the board will light up
16. an be configured by double clicking the bits in the Display Memory area Click Send to write the data to the display memory Figure 7 LED data display selection olx File Settings Help COMMAND RC AND HOTKEYS CONFIG WRITE DISPLAY MEMORY WDT AND STANDBY RTC Display Memory Digit Segment t Je s la s Je z le lo 10luifizlis 1alis ieliz Mioitiitoooooooooa 2 0011111000002020090 3 1000010000020020200 4 100017111000020202027090 sboooooooo0o0o0000000 bsboooooooo0oo0o0o000000 71 o00000000000000200 8al ooooooooooooooono Set Bits play El bbooooooo0o0o00000000 hoo ooooo0oo0o0o000000000 uoooooooo0o0o0000000 Toggle Bits SEND Ti 9 25 www BDTIC com ST Using the evaluation software UMO276 2 4 2 4 1 2 4 2 10 25 RC and Hotkeys Config tab The RC and Hotkeys Config tab is used to configure the remote control and hotkeys as shown in the example given in Figure 8 Figure 8 Remote control and hotkey configuration i sTFPC311 File Settings Help COMMAND RC AND HOTKEYS CONFIG WRITE DISPLAY MEMORY WOT AND STANDBY RTC 215 xl REMOTE CONTROL PROTOCOL RC ADRESS RC Disabled MSB gt FRONT HOTKEYS 7 KS14 KS12 6 1 BANK o lo lo KS7 kso KS9 kss C BANK2 o lo KS2 yoy KS4 C BANK3 RC HOTKEYS CONFIGURATION fo To lo lo 11 Mo To T Mo lo lo lo lo lo lo T Mo lo lo lo lo lo lo T Flo
17. attery Any 2 3 C1 C2 C8 100 nF Capacitor Any 3 2 C3 C6 C7 10 pF Capacitor Any 4 1 C4 10 nF Capacitor Any 5 2 C5 C9 10 UF Capacitor Any 6 1 CON1 DB25 25 pin male Connector Any 7 1 CON2 Header SIP4 Connector Any D1 D2 D3 D4 D5 D6 D7 8 12 D8 D9 D10 D11 D12 Diode 0 4 Diode Any 9 1 JP1 Header HDR1X30 Header Not mounted 10 1 JP2 HDR6X2 Header Any ky 21 25 www BDTIC com ST Front panel key banks UMO276 Table 2 Bill of materials BOM continued Qty Reference footprint Value a part Description Manufacturer KS1 KS 2 KS 3 KS 4 KS 5 11 15 ee p E VARI Push tact switch Keys Any KS 15 12 6 LEP e EROR SMD LED Any 13 1 Q13 SOT 23 BC857B PNP Transistor Any Q1 Q2 Q3 Q4 Q5 Q6 Q7 14 13 Q8 Q9 SOT 23 BC547 NPN Transistor Any Q10 Q11 Q12 15 6 R1 R10 R2 R3 R4 R5 220 Q Resistor Any 16 1 R11 0 Q Resistor Any 17 6 R6 R9 R12 R13 R16 R17 18 KQ Resistor Any 18 1 R14 33 KQ Resistor Any 19 1 R15 100 Q Resistor Any 20 3 R7 R8 R19 10 kQ Resistor Any 21 1 R18 4 7 KQ Resistor Any 22 1 S1 SW DIP4 DIP switch Any 23 1 U1 7 SEG LED E Any 24 1 U2 74VHC14TTR Hex inverter ST 25 1 U3 STFPC311BTR VFD Controller ST 26 1 U4 74V2G07STR 12C Buffer ST 27 1 U5 M41T81M6E RTC ST 28 2 X1 X2 Banana socket Socket FARNELL 150 040 29 1 Y1 32 768 KHz BCY W2 D3 1 Crystal oscillator Any 22 25 ky www B
18. eout period 1s to 15s it is not asserted high the STFPC311 sets the STBY pin to a logic high STBY LED is OFF on the board Figure 3 READY HIGH selection Qs il File Settings Help COMMAND RC AND HOTKEYS CONFIG WRITE DISPLAY MEMORY WDT AND STANDBY Rrc WATCHDOG TIMER ATCHDOG ACTION SETTING Timer Setting C No Action 10 seconds Reset Timer STANDBY CONTROL C READY LOW Issue STANDBY READY HIGH 6 25 Ti www BDTIC com ST UMO276 Using the evaluation software 2 2 Command tab 2 2 1 Display configuration Select the appropriate dimming settings for the LED display The Display Mode digits and segments is pre selected Figure 4 Display configuration ON position Pile File Settings Help COMMAND RC AND HOTKEYS CONFIG WRITE DISPLAY MEMORY wor AND STANDBY RTC WRITE LED PORTS READ FRONT PANEL KEYS Em a K51 KS2 K53 Ks4 KSS LEDS LED4 Write KS6 KS7 K58 K59 K510 FREAD SWITCHES K511 K512 K513 K514 K515 sw swe Read Frequency Read 100 ms y Read DISPLAY CONFIGURATION ON Display Mode Dimming Setting orr a 4 Digits 7 Segments E READ RC DATA os D4 p3 p2 D1 Readfrequency Do t s a as az a ao once z es 2 2 2 Write LED ports The Write LED Ports pane enables the user to switch ON or OFF the evaluation board LEDs
19. lo lo lo lo lo lo MSB LSB RC protocol The STFPC311 supports three Remote Control RC protocols RC5 RC6 and NEC For more information see Appendix A on page 13 Select the appropriate protocol using radio buttons in the Remote Control Protocol pane The RC5 and RC6 protocols use bi phase modulation Manchester encoding where logic transitions represent a logic high or logic low signal The NEC protocol uses pulse distance bit encoding A logic 1 takes 2 25 ms to transmit while a logic 0 takes only 1 12 ms A message starts with a 9ms Auto Gain Control AGC burst which is followed by a 4 5 ms space which is then followed by the Address and Command The Address and Command are transmitted twice The second time all the bits are inverted and are used to verify the received message RC address The address of the Remote Control unit that will communicate with the STFPC311 must be specified Enter the 8 bit values of the protocol address of the Remote Control unit in the text box of the RC Address pane For example the address for the RC5 protocol is 0x00 Table 1 lists the RC protocol address and Standby hotkey configuration values Double click on each of the bits to change its value ky www BDTIC com ST UMO276 Using the evaluation software 2 4 3 2 4 4 2 4 5 RC and hotkey configuration The STFPC311 GUI supports 24 Front Panel Keys 8 of which may be pr
20. nce default or every 100ms 250ms 500ms or 1000ms Figure 6 Read frequency selection lola File Settings Help COMMAND RC AND HOTKEYS CONFIG WRITE DISPLAY MEMORY wor AND STANDBY RTC WRITE LED PORTS READ FRONT PANEL KEYS r ED Be KS1 K52 K54 KSS LED3 LED4 Write KS6 KS KS9 K510 READ SWITCHES K514 K515 5 SW2 sw zm Read frequency Read DISPLAY CONFIGURATION ON Display Mode orr READ RC DATA Read frequency once y Read 8 25 ky www BDTIC com ST UMO276 Using the evaluation software 2 2 5 Read RC Data The decoded IR commands are sent to the main processor through the serial interface by sending 3 bytes of data The Read RC Data pane represents the 24 bits of these 3 byte data frames 2 2 6 Read front panel keys The Read Front Panel Keys pane enables the user to read the status when the keys on the evaluation board are pressed Click the Read Frequency to display the status of keys KS1 to KS15 A green background indicates that the corresponding key is pressed 2 3 Write Display Memory tab The Write Display Memory tab Figure 7 enables the user to select the data displayed on the LED display From the Set Bits drop down menu select the data bit map to be displayed Reset Play CH2 or 15 30 Click Send to write the data to the display memory Click Toggle Bits to switch bit values in the Display Memory pane and then click Send to write the data to the display memory Also the bit map c
21. ogrammed as RC hotkeys using check boxes in the RC Hotkeys Configuration pane as shown in Figure 8 For example the RC hotkey configuration for Standby mode in RC5 protocol is 0000 1100 OCh Table 1 RC protocol address and STANDBY RC hotkey Protocol Address RC hotkey Configuration for STANDBY RC5 0000 0000 00h 0000 1100 0Ch RC6 0010 0111 27h 0000 1100 OCh NEC 0000 0010 02h 1000 1000 88h Front panel hotkeys The Front Panel Hotkeys pane is used to configure hotkeys Select the correct bank Bank1 Bank2 or Bank3 and double click on each of the bits to change its value For more information see Appendix B on page 21 Front panel hotkey configuration The STFPC311 GUI supports 24 Front Panel Keys 8 of which may be programmed as RC hotkeys using the RC Hotkey Configuration pane The Front Panel Hotkeys pane Figure 8 shows the settings used to configure the KS15 key as a hotkey For more information see the corresponding Hotkey Configuration section in Appendix A on page 13 Example of Hotkey use 1 Toputthe VFD controller in Standby mode select the Ready Low option in the Standby Control pane on the WDT and Standby tab When the VFD controller is in Standby mode there are two ways to wake up the controller a Press the remote control Standby key or b Press the Front Panel hotkey 2 After the controller wakes up from Standby mode select the Ready High option in the Standby Contr
22. ol pane on the WDT and Standby tab within the timeout period otherwise the controller switches into Standby mode again For more information about how commands are sent see Section 2 2 Command tab 11 25 www BDTIC com ST Using the evaluation software UMO276 2 5 Note 12 25 RTC tab The Real Time Clock RTC tab Figure 9 is used to configure the current time and date for the RTC on the evaluation board It is also used to configure an Alarm function of the RTC used to check the interrupt status The Time Settings pane displays the current system date and time and provides an interface for modifying these values Click Send to store updated values in the RTC registers In the Alarm Settings pane set the date and time to trigger the RTC interrupt Select Enable Alarm to enable the interrupt Use the Repeat Mode drop down menu to select the interrupt repetition rate once per second minute hour day month or year Click Send to store the configuration in the RTC registers The user can specify the frequency at which the RTC interrupt status is to be read using the Read Frequency pull down menu in the Status pane Click Clear IRQ to clear the interrupt The color of IRQ label changes to green when the RTC interrupt is generated If the Read Date Time check box is selected the Time Settings pane displays the system time Figure 9 Setting the alarm using the RTC AsTFPC311 E 154 x File Settings Help COMMA
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25. www BDTIC com ST UMO276 Remote control protocols Figure 12 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 12 RC5 protocol Standby key waveform Toggle 5 bit Address 6 bit Command star Bits Bit MSB LSB MSB LSB I l l l lata lololololololo lo la l4 lolo I I I I l A 2 RC6 protocol A 2 1 RC6 protocol key interpretation Figure 13 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 e AO to A7 device Address eS Start bit e T Toggle bit e DOtoD7 Key Code Data e Others Stuffed bits ignored Note See Section 2 4 RC and Hotkeys Config tab on page 10 for more protocol information ky 15 25 www BDTIC com ST Remote control protocols UMO276 A 2 2 Note Note 16 25 Figure 13 Reading the RC6 Standby data STFPC311 File Settings Help COMMAND RC AND HOTKEYS CONFIG WRITE DISPLAY MEMORY WDT AND STANDBY RTC n Digits 7 Segments WRITE LED PORTS READ FRONT PANEL KEYS i LED2 B ae B KS1 KS2 KS3 K54 KSS LEDS LED4 Write KS6 KS KS8 KS9 K510 R
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