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Connect your Morse keyer to the programming cable and a PC, and apply power to the Morse code keyer. Note that the Morse keyer program must be customized for your particular application, i.e., call letters, location, and radio gear. First locate the STAMP 2 Windows editor program named STAMPW.EXE. Now locate the Morse keyer program, MORSE2.BS2 (Listing 12-1), and download it to the microprocessor in the Morse keyer. Finally, take a look at the program, and substitute your station information in the message data section of the program for your preferences. Once the program has been saved with your own particular parameters, you are now ready to download the finished program to your Morse code keyer. This is a fun project which you will find very useful in your ham radio shack!
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PROGRAMMING THE KEYER 167
'MORSE2.BS2 ' four message keyer for Amateur Radio. 'Richard Clemens, KB8AOB 'The user can input four different messages in msg1-msg4, 'their character counts in msc1-msc4, and use four 'buttons to display the output and/or key a transmitter. 'NB: the messages are limited to the upper and lower case 'letters, digits 0-9, space, period, comma, and / 'load the EEPROM with data 'switch, special characters, A-M, N-Z, and 0-9 '(switch is so we only convert data after an initial load) swtc data 0 spec data 0,87,207,54,149 leta data 66,132,164,131,1,36,195,4,2,116,163,68,194 letn data 130,227,100,212,67,3,129,35,20,99,148,180,196 nums data 253,125,61,29,13,5,133,197,229,245 'user can change the messages below msg1 data "CQ CQ CQ de KB8AOB KB8AOB KB8AOB K" msg2 data "QTH QTH is Buckhannon, WV Buckhannon, WV" msg3 data "UR RST RST is 599 599 NAME NAME HR IS RICH RICH" msg4 data "TNX for QSO and 73 de KB8AOB" 'character counts must match messages above msc1 con 34 msc2 con 40 msc3 con 48 msc4 con 28 tabl con 41 tone con 1200 spc con 380 dit con 70 dah con 210 chr var b0 ele var b1 x1 var b2 x2 var b3 x3 var b4 x4 var b5 'initialize pins 0 and 1 for output high 0 low 1 'clear the button variables b8 = 0 b9 = 0 b10 = 0 b11 = 0 'test to see if we just downloaded, if yes, set the 'switch so we don't try this again and then convert all 'the messages into their morse code bytes read 0,chr if chr <> 0 then loop write 0,255 'using the ASCII codes to shorten the lookdown 'replace each character with its morse code byte
Listing 12-1
Morse code keyer program.
168 MORSE CODE RADIO KEYER PROJECT
'tabl is the number of elements in the table of codes cvt_msgs: x2 = tabl + 1 x3 = tabl + msc1 + msc2 + msc3 + msc4 for x1 = x2 to x3 read x1,chr lookdown chr,[32,46,44,63,47],chr if chr > 4 then nspec chr = chr + 1 goto find 'if not a space, period, comma, or / then 'sort out the numbers, small letters, and capitals 'and compute a pointer for the table of codes
nspec: if chr > 90 then sml if chr > 57 then cap chr = chr - 16 goto find sml: chr = chr - 91 goto find cap: chr = chr - 59 find: read chr,chr write x1,chr next 'Jump here if not a new program load and then 'wait for a button to be pressed. (All ready to go 'for the Stamp Experiment Board!) 'input on pins 8-11 for messages 1-4 loop: button 8,0,255,0,b8,1,msg1_o button 9,0,255,0,b9,1,msg2_o button 10,0,255,0,b10,1,msg3_o button 11,0,255,0,b11,1,msg4_o
goto loop 'output the msg1_o: x3 = tabl + x4 = msc1 + goto msg_o msg2_o: x3 = msc1 + x4 = msc1 + goto msg_o msg3_o: x3 = msc1 + x4 = msc1 + goto msg_o msg4_o: x3 = msc1 + x4 = msc1 +
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