NX-BS2P i-stamp2p (OEM BASIC Stamp2P40) Experiment board

Transcription

1 NX-BSP i-stampp (OEM BASIC StampP0) Experiment board Specification Socket for i-stampp (OEM BASIC StampP0) DB-9 connector for downloading and communication power supply on board LED monitor channels for all i-stampp port Digit LED 7 segment display common cathode type, multiplexed connection Push button switch (active low with pull-up resistor) High current driver for relay and stepper motor channels DC motor driver (support DC motor 9-V) Pulse generator Hz, 0Hz, 00Hz and khz LCD module connector with brightness adjust Audio amplifier with volume control Piezo speaker Independent variable resistor 0k IC bus circuit experiment : PCF7A : I/O expander, include -LED active low and a dip switch position DS07 : Real-time clock, include V lithium battery backup and square wave output DS : Digital temperature, include LED thermostat output DS900A/C socket for ibutton component Breadboard. x 7 inches 00 point contacts Board size x 9 inches Use with DC adaptor 9-V 00mA (not include), on-board polarity protection circuit. NX-BSP : i-stampp (OEM BASIC StampP 0) Experiment board

2 I C bus experiment device Serial port connector Female socket for i-stampp LED monitor PCF7A DS07 DS POWER switch Audio Amp. with speaker Hz-kHz Pulse generator 00-Points Breadboard Piezo speaker Variable resistor DC motor driver LCD connector High current load driver Push-button switch -Digit 7-segments LED i-button socket Figrure : NX-BSP board layout TX RX ATN GND P0 P P P P P P P7 P P9 P0 P P P P P GND RES A A A A A A0 A9 A A7 A A A A A A A0 Figrure : i-stampp pin assignment NX-BSP : i-stampp (OEM BASIC S tampp 0) Experiment board

3 C00 0./0V K00 x RS- (DB-9F) C00 S00 RESET i-stampp Socket C00 0./0V S00 POWER K00 DC input 9-V 0-0 N00x C00 0/V C00 0./0V IC00 70 C00 0/0V C007 0./0V A A A A A A0 A9 A A7 A A A A A A A0 P P P P P P0 P9 P P7 P P P P P P P0 P0 LE9-LED P0 LE-LE LED RED x LED RED x D D7 D D D D D D D D D D9 D D R09-R R0-R0 0 x 0 x LED Monitor ch. (Active high) D P0 PUSH SW. P P P P P S70 FREQ. R0 0k * S0 D S0 Push button Switch input bit. Active low with pull-up P0 DRIVER INPUT 9 IC0 ULN00 High current driver (V/00mA max.) R70 0k IC70 PGX00 7 D +V Q Q Q Q Q S0 +V K0 DRIVER OUTPUT FREQUENCY (Hz) 0 00 k C70 0./0V LED70-LED70 RED x R70 0 Pulse generator Hz-kHz P70 OUT S00 DSP0-DSP0 : LED 7 SEGMENTS COMMON CATHODE P0 DSP0 DSP0 DSP0 DSP0 SEGMENT a a b b c c d d e e f f g g dp dp VR90 0k S0 DIP SW. x D D D D LE D LE D LE LE P0 R0-R0 0x common common common DIGIT VR90 0k Varaible resistor P90 PIEZO + - Piezo speaker R0/ k7 x P90 IC0 PCF7A R0-R0 0 x P7 P 0 P 9 P SP90 Piezo Speaker R0.7k A A A0 IC0 DS07 Real-time clock NX-BSP BASIC StampP Experiment board P P P P0 P90 LCD Support i-stampp BASIC StampP OEM board P90 R07.7k RS RW E D D D D D D D RW D D D RS E D D D D LED display digits VR90 0k C0 0./0V K90 UIC-LCD LCD connector VDD R09 0k Tout GND A A A0 7 IC0 DS Temperature Sensor R0.7k SQW 7 +VB BATT0 V C0 C0 pf XTAL pf.7khz common R0 k LE ACTIVE Q0 BC7 P0 AUDIO INPUT P0 DC MOTOR M+ M- VR0 0k VOLUME C0 0./0V DC motor driver R0 k7 R0 k7 IC0 LMN- Audio Amplifier 7 R0 0k +V C0 0./0V IC0 L7M M0 V DC motor M D0-D0 N x Breadboard for construction circuit experiments size :. x 7 inches contact : 00 points R0 C0 0/0V C0 70/V C0 0./0V SK90 i-button R90.k DATA GND P90 i-button SP0 SPEAKER Ohm Figure : NX-BSP Experiment board schematic NX-BSP : i-stampp (OEM BASIC StampP 0) Experiment board

4 Example program for i-stampp and NX-BSP Running light '****************************************** ' Connect P0-P to LED monitor '****************************************** ' {$STAMP BSp} ' {PBASIC.} X var NIB DIRS = $FFFF LOOP : outs = $000 for X = 0 to pause 00 outs = OUTS << next goto LOOP LED MONITOR CHANNELS P P P P P P0 P9 P P7 P P P P P P P0 (main i/o for i-stampp module) i-stampp Pulse Counter ********** ' Filename : counter.bsp ' This program will count from 0 to 9999 and display to LED 7-Seg. Feed clock to ' p.don t use freq more than 0 Hz ********** ' {$STAMP BSp} ' {PBASIC.} DIRS = %0 i var nib n var nib seg var byte counter var word LED 7 SEGMENT DISPLAY DIGIT a b c d e f g dp P P0 P P P P P P P7 P P9 P0 P Hz 0Hz 00Hz khz FREQUENCY OUT GND PULSE GENERATOR i-stampp NX-BSP : i-stampp (OEM BASIC S tampp 0) Experiment board

5 loop: if in = then cnt_up pause gosub display goto loop cnt_up: counter = (counter+)//0000 waiting: if in = 0 then loop gosub display n = counter// if i = 0 and n = then disp_dot if i = and n = then disp_dot if i = and n = then disp_dot if i = and n = 0 then disp_dot goto waiting disp_dot: seg = counter dig (-i) lookup i,[%0,%0,%0,%0],outc lookup seg,[9,,9,07,0,7,,,,9,7,,,,9,],outl pause outl=0 i = (i+)// goto waiting display: seg = counter dig (-i) lookup i,[%0,%0,%0,%0],outc lookup seg,[,,9,79,0,09,,7,7,,9,,7,9,,],outl pause outl=0 i = (i+)// return NX-BSP : i-stampp (OEM BASIC StampP 0) Experiment board

6 LCD Experiment * ' Program: Show message ON LCD Module x ' Filename : lcdx.bsp ' Using Bit mode interface, Connect -D TO ground, D-D7 TO P-P7, RS TO P, R/W TO P AND E TO P * ' {$STAMP BSP} ' STAMP directive (specifies a BSP) ' {PBASIC.} LCDpin CON ' LCD Connection char VAR Byte() ' Variable FOR holding text READ from LCD Init: LCDCMD LCDpin, ' Send wakeup sequence TO LCD PAUSE 0 ' These pauses are necessary TO meet the LCD specs LCDCMD LCDpin, PAUSE LCDCMD LCDpin, PAUSE LCDCMD LCDpin, ' Set buss TO -Bit mode LCDCMD LCDpin, ' Set TO -line mode with x font LCDCMD LCDpin, ' Turn display off LCDCMD LCDpin, ' Turn display ON with blinking cursor LCDCMD LCDpin, ' Set TO auto-increment cursor (no display shift) Start: LCDOUT LCDpin,,["Hello!"] GOSUB ReadLCDScreen PAUSE 000 LCDOUT LCDpin,, ["I m a x LCD!"] GOSUB ReadLCDScreen PAUSE 000 GOTO Start ReadLCDScreen: DEBUG "LCD Now Says: " LCDIN LCDpin,, [STR char\] DEBUG STR char\, CR, CR LCD CONNECTOR i-stampp P7 P P P P P P RS R/W E D D D D D D D7 NX-BSP : i-stampp (OEM BASIC S tampp 0) Experiment board

7 I C bus experiment- : Expansion I/O with PCF7A R/- k7 x S DIP SW. x D D D 0 9 P7 P P P R k7 R k7 P P0 R-R7 0 x LED-LED D D D IC PCF7A P P P A P0 A A0 BSP/0 A part of I C bus experiment section The PCF7A is an -bit, quasi-bidirectional I/O expander that communicates with its host micro through an I C bus interface. The reference schematic below shows components that are included on the NX-BP board. ' Filename : ic_expandio.bsp ' Connect P0 AND P TO IC bus experiment circuit section ' {$STAMP BSp} ' {$PBASIC.} ID_READ CON %0000 ' Slave ID, R/W bit = <READ> ID_WRITE CON %00000 ' Slave ID, R/W bit = 0 <WRITE> BUFFER VAR Byte MAINIO IN: ICOUT 0,ID_WRITE,[$FF] ' Turn off LED & clear latch ICIN 0,ID_READ,[BUFFER] ' Read input OUT: BUFFER.NIB = BUFFER.NIB0 ' Swap nibble high & low ICOUT 0,ID_WRITE,[BUFFER] ' Write output GOTO IN NX-BSP : i-stampp (OEM BASIC StampP 0) Experiment board 7

8 I C bus experiment- : Reading time from DS07 BSP/0 A A0 R, R.k A part of I C bus experiment section R.7k 7 IC DS07 +VB SQW BATT V C pf XTAL.7kHz C pf The DS07 is a low-power, Real-Time-Clock with bytes of NV SRAM that communicates with its host micro through an I C bus interface. The reference schematic below shows components that are included on the NX-BSP board. ' Filename : clock_ds07.bsp ' Connect A0 AND A TO IC bus experiment circuit section ' {$STAMP BSP} ' {$PBASIC.} D_TEMP VAR Byte() M_TEMP VAR Byte() DELAY_SW CON 00 SECONDS VAR Byte MINUTES VAR Byte HOURS VAR Byte DAY VAR Byte DATE VAR Byte MONTH VAR Byte YEAR VAR Byte AUXIO HOURS = $ MINUTES = $9 SECONDS = $00 DAY = $0 DATE = $ MONTH = $ YEAR = $0 INIT: ICOUT 0,$,07,[% ] ' ENABLE OSC.,DISABLE SQW/OUT PAUSE 0 GOSUB WRITE_TIME LOOP: GOSUB READ_TIME GOSUB SHOWTIME GOTO LOOP NX-BSP : i-stampp (OEM BASIC S tampp 0) Experiment board

9 ENTER: GOSUB WRITE_TIME WAIT: PAUSE DELAY_SW IF IN = 0 THEN WAIT GOTO LOOP WRITE_TIME: ICOUT 0,$,00,[SECONDS,MINUTES,HOURS,DAY,DATE,MONTH,YEAR] READ_TIME: ICIN 0,$D,00,[SECONDS,MINUTES,HOURS,DAY,DATE,MONTH,YEAR] SHOWTIME: DAY = DAY - ' OFFSET BRANCH DAY,[MON,TUE,WED,THU,FRI,SAT,SUN] MON: D_TEMP(0) = "M": D_TEMP() = "O": D_TEMP() = "N": GOTO LOOP TUE: D_TEMP(0) = "T": D_TEMP() = "U": D_TEMP() = "E": GOTO LOOP WED: D_TEMP(0) = "W": D_TEMP() = "E": D_TEMP() = "D": GOTO LOOP THU: D_TEMP(0) = "T": D_TEMP() = "H": D_TEMP() = "U": GOTO LOOP FRI: D_TEMP(0) = "F": D_TEMP() = "R": D_TEMP() = "I": GOTO LOOP SAT: D_TEMP(0) = "S": D_TEMP() = "A": D_TEMP() = "T": GOTO LOOP SUN: D_TEMP(0) = "S": D_TEMP() = "U": D_TEMP() = "N": GOTO LOOP LOOP: IF MONTH = $0 THEN OCT_ADJ IF MONTH = $ THEN NOV_ADJ IF MONTH = $ THEN DEC_ADJ GOTO LOOP OCT_ADJ: MONTH = $0A : GOTO LOOP NOV_ADJ: MONTH = $0B : GOTO LOOP DEC_ADJ: MONTH = $0C LOOP: MONTH = MONTH - ' OFFSET BRANCH MONTH,[JAN,FEB,MAR,APR,MAY,JUN,JUL7,AUG,SEP9,OCT0,NOV,DEC] JAN: M_TEMP(0) = "J" : M_TEMP() = "A" : M_TEMP() = "N" : GOTO LOOP FEB: M_TEMP(0) = "F" : M_TEMP() = "E" : M_TEMP() = "B" : GOTO LOOP MAR: M_TEMP(0) = "M" : M_TEMP() = "A" : M_TEMP() = "R" : GOTO LOOP APR: M_TEMP(0) = "A" : M_TEMP() = "P" : M_TEMP() = "R" : GOTO LOOP MAY: M_TEMP(0) = "M" : M_TEMP() = "A" : M_TEMP() = "Y" : GOTO LOOP JUN: M_TEMP(0) = "J" : M_TEMP() = "U" : M_TEMP() = "N" : GOTO LOOP JUL7: M_TEMP(0) = "J" : M_TEMP() = "U" : M_TEMP() = "L" : GOTO LOOP AUG: M_TEMP(0) = "A" : M_TEMP() = "U" : M_TEMP() = "G" : GOTO LOOP SEP9: M_TEMP(0) = "S" : M_TEMP() = "E" : M_TEMP() = "P" : GOTO LOOP OCT0: M_TEMP(0) = "O" : M_TEMP() = "C" : M_TEMP() = "T" : GOTO LOOP NOV: M_TEMP(0) = "N" : M_TEMP() = "O" : M_TEMP() = "V" : GOTO LOOP DEC: M_TEMP(0) = "D" : M_TEMP() = "E" : M_TEMP() = "C" LOOP: DEBUG HOME,"TIME= ",HEX HOURS,":",HEX MINUTES,":",HEX SECONDS,0, DEBUG "DAY = ",STR D_TEMP\,":",HEX DATE,"-",STR M_TEMP\,"-",HEX YEAR,0, DAY = DAY + MONTH = MONTH + NX-BSP : i-stampp (OEM BASIC StampP 0) Experiment board 9

10 I C bus experiment- : Reading temperature from DS C 0./0V BSP/0 P P0 R.k R.k VDD IC DS GND A A A0 7 a part of I C bus experiment section The DS is digital thermometer and thermostat that communicates with its host micro through an I C bus interface. The DS includes and alarm output that can be set to activate if the temperature exceeds a stated high threshold, and reset when the temperature falls below a stated low threshold. The reference schematic below shows components that are included on the NX-BSP board. ' Filename : ds_temp.bsp ' Connect P0 AND P TO IC bus experiment circuit section ' {$STAMP BSP} ' {$PBASIC.} RD_TEMP CON $AA ' READ temperature RD_CNT CON $A ' READ counter RD_SLOPE CON $A9 ' READ slope START_T CON $EE ' Start conversion STOP_T CON $ ' STOP conversion ACCESS_TH CON $A ' Rear OR WRITE TH ACCESS_TL CON $A ' Rear OR WRITE TL CONFIG CON $AC ' Rear OR WRITE CONFIG. register ID CON $90 ' Slave ID. RESULT MSB LSB POINT SIGN VAR Word VAR Byte VAR Byte VAR Byte VAR Byte ICOUT 0,ID,CONFIG,[%000000] ' Continuous conversion PAUSE ' Delay ms ICOUT 0,ID,[START_T] ' Start conversion LOOP: ICIN 0,ID,RD_TEMP,[MSB,LSB] GOSUB RESULT_ADJ GOTO LOOP 0 NX-BSP : i-stampp (OEM BASIC S tampp 0) Experiment board

11 RESULT_ADJ: SIGN = "-" IF MSB.BIT7 = THEN NEG_ADJ SIGN = " " MSB = MSB << MSB.BIT0 = LSB.BIT7 ' Show negative temperature ' Show positive temperature SHOW: POINT = "" IF MSB.BIT0 = THEN HALF POINT = "0" HALF: MSB = MSB/ PAUSE 0 DEBUG HOME,"TEMPERATURE = ",SIGN,DEC MSB,".",POINT," C" NEG_ADJ: MSB = MSB << MSB.BIT0 = LSB.BIT7 MSB = ~MSB MSB = MSB + GOTO SHOW ' s complement ' s complement NX-BSP : i-stampp (OEM BASIC StampP 0) Experiment board

12 ibutton reader -wire/ibutton experiment section R.k ibutton socket i-stampp P DS909F DS990A ibutton ' Filename : ds990_reader.bsp ' Connect P TO ibutton section ' {$STAMP BSP} ' STAMP directive (specifies a BSP) ' {$PBASIC.} '******************* Byte MODE,LOW SPEED *********************************** MODE0 CON 0 ' No Reset MODE CON ' Reset before DATA MODE CON ' Reset after DATA MODE CON ' Reset before AND after DATA '******************* Bit MODE,LOW SPEED *********************************** MODE CON ' No Reset MODE CON ' Reset before DATA MODE CON ' Reset after DATA MODE7 CON 7 ' Reset before AND after DATA I VAR Nib SERIAL VAR Byte() START: GOSUB READ_ID GOSUB SHOW_ID STOP SHOW_ID: PAUSE ' DELAY FOR START DEBUG DEBUG HOME,"CRC VALUE = ",IHEX SERIAL(7),CR DEBUG "SERIAL No. = $" FOR I = TO DEBUG HEX SERIAL(I) NEXT DEBUG CR, "FAMILY CODE= ",IHEX SERIAL(0) READ_ID: OWOUT,MODE,[$0F] ' SEND READ ROM <FOR DS990(A) ONLY> OWIN,MODE,[STR SERIAL\] ' READ ROM NX-BSP : i-stampp (OEM BASIC S tampp 0) Experiment board

13 L7 DC motor Driver demonstration LED monitor R0-R0 0 x +V D D i-stampp P P P P0 P P M+ M- R0 k7 R0 k7 7 C0 0./0V M0 V DC motor IC0 L7M M D0-D0 N x DC motor driver D D D R0 0k * S0 S0 S0 S00 The L7 is a high-power dual operational amplifier that, in this application, is configured as a bidirectional DC motor driver. The i-stampp monitors input buttons that control movement, direction, and speed. Note that the i-stampp is used to synthesize the PWM waveform used to control motor speed. The reference schematic below shows components that are included on the NX-BSP board. ' *************************************************** ' Filename : l7.bsp ' Simple DC motor control using the L7M ' *************************************************** ' {$STAMP BSp} ' {$PBASIC.} Motor_Pos PIN Motor_Neg PIN Led_CCW PIN Led_CW PIN SW VAR INA ' pins 0 - M_Stop CON 0 ' motor states M_CW CON M_CCW CON Lo_Speed CON Hi_Speed CON 0 NX-BSP : i-stampp (OEM BASIC StampP 0) Experiment board

14 state VAR Nib ' motor state speed VAR Byte ' PWM output high time speed VAR Byte ' PWM output low time Setup: state = M_Stop Main: DO ON state GOSUB Motor_Stop, Motor_CW, Motor_CCW GOSUB Check_SW LOOP Check_SW: SELECT SW CASE %00 state = M_Stop LOW Led_CW LOW Led_CCW DO : LOOP UNTIL (SW = %) ' force button release PAUSE 0 CASE %0 state = M_CCW LOW Led_CW HIGH Led_CCW CASE %0 state = M_CW HIGH Led_CW LOW Led_CCW CASE %0 speed = speed + MAX Hi_Speed ' increase speed speed = speed - MIN Lo_Speed CASE %0 speed = speed - MIN Lo_Speed ' decrease speed speed = speed + MAX Hi_Speed ENDSELECT Motor_Stop: ' stop motor LOW Motor_Pos LOW Motor_Neg speed = (Lo_Speed + Hi_Speed) / ' reset default speed speed = speed Motor_CW: ' turn clockwise HIGH Motor_Neg LOW Motor_Pos PAUSE speed HIGH Motor_Pos PAUSE speed Motor_CCW: ' turn counter-clockwise HIGH Motor_Pos LOW Motor_Neg PAUSE speed HIGH Motor_Neg PAUSE speed NX-BSP : i-stampp (OEM BASIC S tampp 0) Experiment board