Appendix C How to Make the Traditional 8051 MCU
EVB Emulatable
The traditional 8051 microcontroller EVB does not have simulation function. To enable the traditional 8051
microcontroller EVB to be simulated, a conversion board is needed. The physical picture of the conversion board is shown
below. The converted pin arrangement is basically the same as that of the traditional 8051. Therefore, the simulation function
of the standard 8051 learning board can be realized.
The figures below are the schematic and PCB layout of the converter board.
1 2 3 4
A
B
C
D
4321
D
C
B
A
Title
Number Revisio nSize
A
Date: 21 -Feb-202 0 Sh eet of
File: C :\U sers\Liu\Dow nloads\STC8 G-89 C5 2-202 0-2-19.dd bDrawn B y:
P5.3
1
P0.5
2
P0.6
3
P0.7
4
P1.0
5
P1.1
6
P4.7
7
P1.2
8
P1.3
9
P1.4
10
P1.5
11
P1.6
12
P1 .7
13
P5 .4
14
VCC
15
VREF
16
GND
17
P4 .0
18
P3 .0
19
P3 .1
20
P3 .2
21
P3 .3
22
P3 .4
23
P5 .0
24
P5.1
25
P3.5
26
P3.6
27
P3.7
28
P4.1
29
P4.2/WR
30
P4.3
31
P4.4/RD
32
P2.0
33
P2.1
34
P2.2
35
P2.3
36
P2 .4
37
P2 .5
38
P2 .6
39
P2 .7
40
ALE/P4 .5
41
P4 .6
42
P0 .0
43
P0 .1
44
P0 .2
45
P0 .3
46
P0 .4
47
P5 .2
48
U2
STC8 G-48
R ST
VCC
GND
C2
0.1u
C3
10 u
C1
10 u
R1
10 K
VCCVCC
R ST
GND
20
XTA L1
19
XTA L2
18
R D/P3 .7
17
W R /P3.6
16
T1 /P 3 . 5
15
T0 /P 3 . 4
14
INT1/P3.3
13
INT0/P3.2
12
TXD /P3.1
11
R XD/P3.0
10
R ST
9
P1 .7
8
P1 .6
7
P1 .5
6
P1 .4
5
P1 .3
4
P1 .2
3
P1 .1
2
P1 .0
1
P2 .0 /A8
21
P2 .1 /A9
22
P2 .2 /A10
23
P2 .3 /A11
24
P2 .4 /A12
25
P2 .5 /A13
26
P2 .6 /A14
27
P2 .7 /A15
28
P4 .4 /P SEN
29
P4 .5 /ALE
30
P4 .6 /EA
31
P0 .7 /AD7
32
P0 .6 /AD6
33
P0 .5 /AD5
34
P0 .4 /AD4
35
P0 .3 /AD3
36
P0 .2 /AD2
37
P0 .1 /AD1
38
P0 .0 /AD0
39
VCC
40U1
DIP40
R3
20 1R
R2
20 1R
SW 1
SM3 X6
R4
10 1R
R6
10 1R
R5
10 1R
R7
10 1R
R 1,C 1 可不焊
P3 .7 /R D-P 4. 4
P3 .6 /W R-P4 .2
P4 .7
P4 .6
To Next Page
Loading...