MC68HC711xxxx Motorola, MC68HC711xxxx Datasheet - Page 241
MC68HC711xxxx
Manufacturer Part Number
MC68HC711xxxx
Description
Microcontrollers
Manufacturer
Motorola
Datasheet
1.MC68HC711XXXX.pdf
(268 pages)
- Current page: 241 of 268
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1050 BYTECOUNT = 16 * X
1060 GOSUB 6000
1070 GOSUB 7000
1080 BYTECOUNT = BYTECOUNT + X
1090 BYTECOUNT = BYTECOUNT - 3
1099 REM ***** NEXT 4 HEX DIGITS BECOME THE STARTING ADDRESS FOR THE DATA *****
1100 GOSUB 6000
1102 GOSUB 7000
1104 ADDRESS= 4096 * X
1106 GOSUB 6000
1108 GOSUB 7000
1110 ADDRESS= ADDRESS+ 256 * X
1112 GOSUB 6000
1114 GOSUB 7000
1116 ADDRESS= ADDRESS+ 16 * X
1118 GOSUB 6000
1120 GOSUB 7000
1122 ADDRESS= ADDRESS+ X
1124 ARRAYCNT = ADDRESS-ADRSTART
1129 REM ***** CONVERT THE DATA DIGITS TO BINARY AND SAVE IN THE ARRAY *****
1130 FOR I = 1 TO BYTECOUNT
1140 GOSUB 6000
1150 GOSUB 7000
1160 Y = 16 * X
1170 GOSUB 6000
1180 GOSUB 7000
1190 Y = Y + X
1200 CODE%(ARRAYCNT) = Y
1210 ARRAYCNT = ARRAYCNT + 1
1220 NEXT I
1230 GOTO 1000
1250 CLOSE 1
1499 REM ***** DUMP BOOTLOAD CODE TO PART *****
1500 'OPEN "R",#2,"COM1:1200,N,8,1" 'Macintosh COM statement
1505 OPEN "COM1:1200,N,8,1,CD0,CS0,DS0,RS" FOR RANDOM AS #2 'DOS COM statement
1510 INPUT "Comm port open"; Q$
1512 WHILE LOC(2) >0
1513 GOSUB 8020
1514 WEND
1515 PRINT : PRINT "Sending bootload code to target part..."
1520 A$ = CHR$(255) + BOOTCODE$ 'ADD HEX FF TO SET BAUD RATE ON TARGET HC11
1530 GOSUB 6500
1540 PRINT
1550 FOR I = 1 TO BOOTCOUNT
1560 GOSUB 8000
1564 K=ASC(B$):GOSUB 8500
1565 PRINT "Character #"; I; " received = "; HX$
1570 NEXT I
1590 PRINT "Programming is ready to begin.": INPUT "Are you ready"; Q$
1595 CLS
1597 WHILE LOC(2) > 0
AN1060 — Rev. 1.0
MOTOROLA
'SAVE UPPER NIBBLE OF BYTE
'ADD LOWER NIBBLE
'SAVE BYTE IN ARRAY
'INCREMENT ARRAY INDEX
'FLUSH INPUT BUFFER
'# OF BYTES IN BOOT CODE BEING ECHOED
'FLUSH INPUT BUFFER
'ADJUST FOR HIGH NIBBLE
'ADD LOW NIBBLE
'ADJUST FOR ADDRESS + CHECKSUM
'GET FIRST NIBBLE OF ADDRESS
'CONVERT TO DECIMAL
'GET NEXT NIBBLE
'INDEX INTO ARRAY
Application Note
241
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