RS232 (serial) port

Why can't I send a hexadecimal character with a high bit of 1?

Started by sxbug

Replies: 8
Views: 1,011

January 02, 2021, 12:06:25 pm
by sxbug

nrComAfterReceive - Number of received bytes reported - not consistent

Started by Francois

Replies: 1
Views: 2,146

August 06, 2020, 11:45:52 am
by Roman Novgorodov

nrComm cannot communication with Arduino that use CH340G Chip but Comport can do

Started by amit

Replies: 6
Views: 3,437

January 14, 2020, 09:24:12 am
by Roman Novgorodov

How to list all COM ports and open available ports without clicking?

Started by Minh-Quang LE

Replies: 1
Views: 688

January 25, 2019, 03:19:07 am
by Roman Novgorodov

How to get 400 value one time request with modbus

Started by truongbhh@gmail.com

Replies: 3
Views: 384

December 29, 2018, 02:35:43 pm
by Roman Novgorodov

nrCommm.AfterReceive is too slow, how can i speed it up

Started by thorsten

Replies: 2
Views: 1,195

November 07, 2018, 03:24:12 pm
by Roman Novgorodov

Failed to communicate with device

Started by mikerabat

Replies: 0
Views: 1,642

January 15, 2018, 08:39:02 am
by mikerabat

OnAfterSend event not firing

Started by PlusPlus

Replies: 0
Views: 905

December 29, 2017, 12:23:28 pm
by PlusPlus

turn off & on LED with delphi

Started by jr_ozv

Replies: 0
Views: 1,055

May 06, 2017, 09:41:57 am
by jr_ozv

ASTM component

Started by damos

Replies: 0
Views: 1,189

October 27, 2016, 09:44:01 am
by damos

How to set xon and xoff char of comport

Started by carsten

Replies: 0
Views: 1,291

August 02, 2016, 06:05:15 pm
by carsten

Serial port enumeration - I want to see only free/unused serial ports

Started by AntonL

Replies: 1
Views: 1,613

October 04, 2015, 04:17:30 am
by Roman Novgorodov

Modbus can't write twice

Started by crestxa

Replies: 1
Views: 1,562

August 06, 2015, 10:22:22 am
by Roman Novgorodov

send wrong!

Started by crestxa

Replies: 0
Views: 1,629

June 04, 2015, 10:00:31 am
by crestxa

Read data from several serial ports simultaneously

Started by felorza

Replies: 0
Views: 1,787

June 02, 2015, 01:07:25 am
by felorza

Error Send Long String

Started by cabella

Replies: 0
Views: 1,431

February 27, 2015, 02:59:13 pm
by cabella

Sending a Long String

Started by Hamed Jim

Replies: 2
Views: 1,674

February 10, 2015, 12:58:07 pm
by peer

Error when re-selecting Com port using DeviceBox

Started by NigelL

Replies: 3
Views: 1,960

December 18, 2014, 12:02:11 pm
by Roman Novgorodov

Open Error

Started by jeremyk

Replies: 2
Views: 1,614

September 15, 2014, 01:30:53 pm
by jeremyk

Display TxD & RxD?

Started by ijbranch

Replies: 1
Views: 2,019

September 09, 2014, 05:00:24 pm
by Roman Novgorodov