Manual

Quickie Program
Type and run just these
lines in PBASIC 2 and
“Hello World!” appears on
the display.
User’s Manual
Scott Edwards Electronics, Inc.
1939 S. Frontage Road, Suite F, Sierra Vista, AZ 85635 USA
ph: 520-459-4802 • fax: [phone] • www.seetron.com
BPI-216 • v1.2 • 07/00 • pg 7
' Program: BPKDEMS1.BAS
' This program demonstrates fundamental techniques of driving
' BPI-216 serial LCDs in BASIC from the BASIC Stamp I. It assumes
' that the BPI-216 is connected to I/O pin 0 of the Stamp, and
' that it is set for 2400 bps.
' Start by defining some useful constants for the BPI-216.
SYMBOL I = 254 ' Instruction prefix value.
SYMBOL CLR = 1 ' LCD clear-screen instruction.
SYMBOL LINE2 = 192 ' Address of 1st char of 2nd line.
SYMBOL L1_C7 = 135 ' Address of line 1, character 7.
' Now clear the screen in case there's text left from a previous
' run of the program. Note that there's a 1-second PAUSE prior to
' sending any data to the Backpack. This gives the unit plenty
' of time to initialize the LCD after power up.
pause 1000
serout 0,n2400,(I,CLR) ' Clear the LCD screen.
serout 0,n2400,("Hello World!") ' Print message.
' Positioning the cursor requires sending the instruction prefix (ASCII
' 254, assigned the symbol "I") followed by an address.
serout 0,n2400,(I,LINE2,"..line 2") ' Move to line 2 and print.
' Now we'll simulate a common application by printing a label on the
' screen and updating some data by positioning the cursor.
pause 2000 ' Wait 2 secs.
serout 0,n2400,(I,CLR) ' Clear the LCD screen.
serout 0,n2400,("Count:") ' Print the label.
Again:
serout 0,n2400,(I,L1_C7) ' Move to line 1, character 7.
serout 0,n2400,(#b2," ") ' Print value of b2 followed by 2 spaces.
b2 = b2+1 ' Increment b2.
pause 200 ' Slow the loop down.
goto Again ' Repeat endlessly.
' Program: BPKDEMS2.BS2
' This program demonstrates fundamental techniques of driving
' BPI-216 serial LCDs in BASIC from the BASIC Stamp II. It assumes
' that the BPI-216 is connected to I/O pin P0 of the Stamp, and
' that it is set for 9600 bps.
' Start by defining some useful constants for the Backpack.
N9600 con $4054 ' Baudmode-9600 bps inverted. Use $40F0 for BS2-SX.
I con 254 ' Instruction prefix value.
CLR con 1 ' LCD clear-screen instruction.
LINE2 con 192 ' Address of 1st char of 2nd line.
L1_C7 con 135 ' Address of line 1, character 7.
' Now clear the screen in case there's text left from a previous
' run of the program. Note that there's a 1-second PAUSE prior to
' sending any data to the Backpack. This gives the Backpack plenty
' of time to initialize the LCD after power up.
pause 1000
serout 0,n9600,[I,CLR] ' Clear the LCD screen.
pause 1
serout 0,n9600,["Hello World!"] ' Print message.
' Positioning the cursor requires sending the instruction prefix (ASCII
' 254, assigned the symbol "I") followed by an address.
serout 0,n9600,[I,LINE2,"..line 2"] ' Move to line 2 and print.
' Now we'll simulate a common application by printing a label on the
' screen and updating some data by positioning the cursor.
pause 2000 ' Wait 2 secs.
serout 0,n9600,[I,CLR] ' Clear the LCD screen.
pause 1
serout 0,n9600,["Count:"] ' Print the label.
Again:
serout 0,n9600,[I,L1_C7] ' Move to line 1, character 7.
serout 0,n9600,[DEC b2," "] ' Print value of b2 followed by 2 spaces.
b2 = b2+1 ' Increment b2.
pause 200 ' Slow the loop down.
goto Again ' Repeat endlessly.
Quickie Program
Type and run just this line
in PBASIC 1 and “Hello
World!” appears on the
display.