STAMP 2 Communications And Control Projects.pdf

AN EXERCISE 13
TABLE 1-4
ORIGINAL STAMP 2 VERSUS ALTERNATIVE STAMP 2 PINOUTS
P DESIGNATION ORIGINAL STAMP 2 PIN ALTERNATIVE STAMP 2 PIN
P0 5 10
P1 6 11
P2 7 12
P3 8 13
P4 9 14
P5 10 15
P6 11 16
P7 12 17
P8 13 18
P9 14 19
P10 15 20
P11 16 21
P12 17 22
P13 18 23
P14 19 24
P15 20 25
two 10-k resistors and two momentary pushbutton switches as shown. The LEDs are
connected to pins P0 and P1 and the two input switches are connected to pins P2 and P3.
The program will begin blinking one of the LEDs when switch S1 is pressed. When S2 is
pressed, the second LED will begin blinking with a double blink. The blink program
demonstrates the use of inputs and outputs as well as whether the alternative STAMP 2 is
functioning. Once the test circuit has been breadboarded or built on a perfboard or PC
board, you are now ready to load your first program into the microprocessor. Once you
have assembled your alternative STAMP 2, you will need to connect it to your PC’s serial
port, using a serial programming cable. Once your serial cable has been built and connected
between your PC and the alternative STAMP 2, apply power through the 5-V regulator
and you are ready to roll. Locate the Windows desktop editor software STAMP-
W.EXE and call it up on your PC. Once the program has been installed and called up, you
can apply power to your alternative STAMP 2 circuit and support chips. Remember, if you
are using the alternative STAMP 2, you will need to provide 5 V to pin 2. You are now ready
to begin programming your new STAMP 2 microcontroller. Type the BLINK.BS2 program
(Listing 1-1) into the Windows STAMP 2 editor and then run the blink program to test your
alternative STAMP 2. Your alternative STAMP 2 should now come to life as soon as you
press switch S1 or S2. You are now on your way to programming and enjoying your
STAMP 2 microprocessor.