CODEWITHSUNDEEP
batch-file
Burak Günay
Burak Günay

Reputation: 11

Serial port reading using Command Prompt BATCH

I'm trying to communicate with a hardware through a TTL bridge via serial com port of a PC. And I found out some useful commands that help receiving and sending strings using a batch file . And here is my batch code

@echo off

mode COM3 BAUD=9600 PARITY=n DATA=8

:main

set /p x=5 <nul >\\.\COM3
ping localhost -n 2 >nul
type com3

goto main

The problem is that the batch file stucks when it arrives to "type com3" line . It starts to listen the com3 port and never leaves that line and stucks there .. Is there anything like a timeout procedure that will help to terminate the "type com3" line after a while ?

I'm not good at batch programming , all I can do is writing simple scripts using batch commands.

Thanks in advance

Upvotes: 1

Views: 12299

Answers (1)

Scott C
Scott C

Reputation: 1660

The type com3 command will never return for you. It will listen on the port forever. A slight tweak to have 2 windows should help you out.

@echo off

mode COM3 BAUD=9600 PARITY=n DATA=8

start type com3

:main

set /p x=5 <nul >\\.\COM3
ping localhost -n 2 >nul

goto main

Upvotes: 2

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