The Proteus 51 Serial Port communicates with the virtual terminal.

1. Circuit Diagram

Baud Rate of virtual terminal shoshould be 4800

 

2. When the user inputs 0, the hi, Dave,

When the user inputs 1, hi, Mike is displayed.

Input error is displayed when other parameters are entered.

 

3. Source Code

; Latest revise: 2009-12-10

; By: Alex Shoal

; Email: alex.shoal@gmail.com

Orgw.h

Start: movsp, #60 h

Movscon, # 0101_ B

; Movp1, 00 h

Movtmod, #20 h

Orlpcon, # 0000000b

Movth1, # 0f3h

Movtl1, # 0f3h

Setbtr1

Loop: jnbri, $

Clrri

Mova, sbuf

Cjnea, #30 h, B1

Callmsg1

 

B1: cjnea, #31 H, B2

Callmsg2

 

B2: callmsg3

 

Msg1: movdptr, # M1

Callprint

Sjmploop

Msg2: movdptr, # m2

Callprint

Sjmploop

 

Msg3: movdptr, # m3

Callprint

Sjmploop

 

Print: movr0, #00 h

Dp1: mova, R0

Movca, @ A + dptr

Cjnea, #00 h, output

RET

Output: movsbuf,

Jnbti, $

Clrrti

Incr0

Sjmpdp1

 

 

M1: DB 'Hi, Dave ', 0dh, 00 h

M2: DB 'Hi, Mike ', 0dh, 00 h

M3: DB 'input error', 0dh, 00 h

End

 

3. Result