?? key05r2.txt
字號(hào):
101 Key, IBM Keyboard Decoder for 68HC705J1A.
2nd April 1999
About
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This archive includes source code for decoding an IBM compatible
AT keyboard into ASCII which is sent at 9600 BPS using a 4MHz
crystal.
Included in this archive should be the following 3 files,
KEY05R2.TXT - This File.
KEY05R2.ASM - Assembly Source Code for HC705J1A
KEY05R2.LST - List file.
KEY05R2.S19 - .S19 file.
During development, the KEYBRD05.ASM file was assembled using CASM5J1A,
a dedicated 68HC05J1A assembler. This assembler has equates for the
HC705J1A's ports built in. If using other assemblers, you may be
required to specify the port addresses.
Should you have trouble assembling the code, a .S19 File is also
included.
Distribution
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This source code can be freely distributed provided that this file is
distributed with the program. No modifications can be made to this
archive.
The source code cannot be sold either in source form or pre-programmed
into a device, without the written permission of the Author.
More Information
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More information on the source code and connecting the HC705J1A to a
keyboard can be obtained from
http://www.geocities.com/SiliconValley/Bay/8302/keybrd.htm
or from Interfacing the PC at
http://www.senet.com.au/~cpeacock
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