On 15 Jan 2005 04:08:52 -0800, padmow
...@yahoo.com (PADME) wrote:
>Hi all,
>I've heard there is an IC which can convert an IBM PC keyboard to ASCII.
>Any help is very appreciated.
>Thank you in advance
>Padme
MANY years ago I built my own KVM switch, by sending the keyboard
signals down a shift register and doing a broad-side decode to
activate the switch. Following are the codes as seen at the shift
register. I have schematics, if you're interested... but it's NOT a
trivial task (as I did it... today probably just a uP :)
L-ALT 011101110
TAB 111110010
CAPS 111100111
L-SHFT 011101101
L-CTRL 011101011
SPACE 111010110
R-ALT 011101110
R-CTRL 011101011
R-SHFT 010100110
ENTER 010100101
BK-SP 010011001
INSERT 110001111
HOME 010010011
PG-UP 010000010
PG-DN 110000101
DELETE 010001110
END 010010110
UP-A 110001010
LEFT-A 110010100
DN-A 010001101
RT-A 010001011
Z 111100101
X 011011101
C 011011110
V 111010101
B 111001101
N 111001110
M 011000101
, 010111110
. 110110110
/ 110110101
A 111100011
S 011100100
D 111011100
F 011010100
G 111001011
H 011001100
J 111000100
K 010111101
L 010110100
; 110110011
' 110101101
Q 111101010
W 011100010
E 011011011
R 011010010
T 111010011
Y 011001010
U 011000011
I 110111100
O 010111011
P 010110010
[ 110101011
] 110100100
` 111110001
1 111101001
2 011100001
3 111011001
4 111011010
5 011010001
6 011001001
7 111000010
8 111000001
9 110111001
0 110111010
- 010110001
= 010101010
\ 110100010
ESC 110001001
F1 011111010
F2 011111001
F3 111111011
F4 011110011
F5 011111100
F6 111110100
F7 101111100
F8 011110101
F9 111111110
F10 011110110
F11 010000111
F12 111111000
PRT-SCR 011101101
SCRL-LK 010000001
PAUSE 010001000
NUM-LK 010001000
NUM / 110110101
NUM * 110000011
NUM - 010000100
7-HOME 010010011
8-UP 110001010
9-PG-UP 010000010
4-LEFT 110010100
NUM-5 110001100
6-RT 010001011
1-END 010010110
2-DN 010001101
3-PG-DN 110000101
0-INS 110001111
.DEL 010001110
NUM + 110000110
NUM-ENT 010100101
...Jim Thompson
--
| James E.Thompson, P.E. | mens |
| Analog Innovations, Inc. | et |
| Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
| Phoenix, Arizona Voice:(480)460-2350 | |
| E-mail Address at Website Fax:(480)460-2142 | Brass Rat |
| http://www.analog-innovations.com | 1962 |
I love to cook with wine. Sometimes I even put it in the food.
