Since 2005, GuancheMOS is the prefered serial number creation and validation Engine plug-in used by dozens of Xojo and REAL Studio developers all over the. GuancheMOS 1.5.5 Includes support to compile with the Mac OS X Universal Binary executables compiled with REALbasic 2006r4, Fixes some glitches and. Class Constants. To set the Baud rate, assign the desired class constant to the Baud property. To get the baud rate, compare the value of the Baud property to the constants in this table. Baud Rate, Value, Constant. 300, 0, Baud300. 600, 1, Baud600. 1200, 2, Baud1200. 1800, 3, Baud1800.

I am trying to write a Xojo app to communicate with a device (a ZVT-ECash Terminal) that is connected to my Mac through a USB/Serial adapter. I am testing my app on OS X and on Windows 7 (running under Parallels). In both cases I'm sending a string (always the same one) through Serial.Write somehow like that: command = chrb(&h10) + chrb(&h02) + chrb(&h06) + chrb(&h00) +chrb(4). Serial1.Write(command) Serial1 is an instance of the Serial control. This string is acknowledged by the device as a valid command when I run my app on Windows and is not acknowledged on OS X (the device answers with a NAK). On OS X I have also tried to send the same string manually with CoolTerm and it was not acknowledged either. What am I doing wrong?

Is it some problem with the Serial control in Xojo, and/or is there some general difference in how the serial port works under Win and OS X? I have run into similar problems myself just recently. Turned out it had nothing to do with Xojo (even though CoolTerm is written in Xojo as well). The problem was with the OS X driver for the adapter that is using the '2303' Prolific chip. I found that both the driver by Prolific and the open source version (osx.pl2303) had issues: The former did not always set the baud rate correctly whereas the latter did not handle the hardware handshake properly. My solution was to purchase the driver from - it was the only one that worked for me on OS X with two different 2303-based adapters.

Class (inherits from ) Serial controls are used to perform serial communications. Events Properties Methods Class Constants Baud Rates To set the Baud rate, assign the desired class constant to the Baud property. To get the baud rate, compare the value of the Baud property to the constants in this table. Baud Rate Value Constant 300 0 Baud300 600 1 Baud600 1200 2 Baud1200 1800 3 Baud1800 2400 4 Baud2400 3600 5 Baud3600 4800 6 Baud4800 7200 7 Baud7200 9600 8 Baud9600 14400 9 Baud0 10 Baud0 11 Baud0 12 Baud0 13 Baud00 14 Baud100 15 Baud230400 Setting nonstandard baud rates is supported only on Windows and macOS and above. On macOS, the system supports arbitrary baud rates by passing the request along to the driver. If the driver supports the passed baud rate, then it is set (or approximated). On Linux, some non-standard baud rates are possible to achieve by using the Setserial system call and setting your baud rate to a special value.

LineChangeNotification The following class constants can be used to determine line state changes. Class Constants Description LineCTS Clear to send. Trp Rating Of Tv Serials July 2013. Microscope Parts And Functions. LineDCD Data carrier detect.

LineDSR Data set ready. LineDTR Data Terminal Ready LineRTS Request to Send LineRI Ring Indicator Parity The following class constants can be used to get or set the parity using the Parity property. Class Constant Description ParityNone No parity. ParityOdd Odd parity. ParityEven Even parity. Stop Bits The following class constants can be used to get or set the number of stop bits using the Stop property. Class Constant Description StopBits1 1 stop bit.

StopBits15 1.5 stop bits. StopBits2 2 stop bits. Bits The following class constants can be use to set the number of bits using the Bits property. Class Constant Description Bits5 5 bits. Bits6 6 bits.