I'm trying to write a C++ MFC application that uses the serial port (e.g. COM8). Every time I try to set the DCB it fails. If someone can point out what I'm doing wrong, I'd really appreciate it....

Jul 26, 2012 · I just started learning assembler language. I came across the concept of EQU. At first it made perfect sense, until I got to DC.B. What is the difference between DC.B and EQU? Can't you …

Oct 7, 2024 · Serial communication, how to set DCB correctly? Ask Question Asked 1 year, 5 months ago Modified 1 year, 5 months ago

Feb 10, 2024 · That said, I have normally seen the DCBE copied (and the address in the 24-bit DCB relocated) in many assembler applications that dynamically set up 24-bit DCB's.

Feb 2, 2022 · DCB dcbSerialParams = { 0 }; This should disable all flow control by setting all pertinent values to FALSE or 0. As long as your string sets all the other important stuff (baud rate, parity, stop …

Oct 5, 2020 · You can alter the defaults by placing other values in the DCB parameter of the SYSPRINT statement. You cannot, however, use a record format of F or fixed block (FB); those are changed to …

Mar 11, 2018 · Assuming that usb_device is a valid device handle: Is it possible that your device supoorts the paramters you have specified (baud rate, start/stop bits)? Also ensure that …

Dec 29, 2017 · I'm trying to create a C++ program to communicate with a serial port device using Windows API in Visual Studio Community 2017 on Windows 7. Trying to compile this bit of code: …

Apr 21, 2022 · Have you initialised the DCB (e.g, DCB commstate = {0};)? It seems likely that unused fields (because for example, you are not using hardware or software flow control) are not explicitly …

Jul 17, 2011 · I'm trying to write a program that will write some data to a temporary dataset using the 370/assembler and QSAM. I get a soc01 when executing the put. My DCB declaration in the …