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#COOLTERM YOUR SYSTEM DOES NOT HAVE ANY SERIAL PORTS HOW TO#
#COOLTERM YOUR SYSTEM DOES NOT HAVE ANY SERIAL PORTS FOR MAC OS#
#COOLTERM YOUR SYSTEM DOES NOT HAVE ANY SERIAL PORTS FOR MAC#
#COOLTERM YOUR SYSTEM DOES NOT HAVE ANY SERIAL PORTS MAC OS#

Of course, the text will also flow in the opposite direction. Using a serial connection from your computer, the text you type to one XBee will be wirelessly transmitted to the other XBee, which will send the text via serial to your other computer.

#COOLTERM YOUR SYSTEM DOES NOT HAVE ANY SERIAL PORTS HOW TO#

For details on the clock rates your particular FTDI chip can achieve, take a close look at the baud rate calculation section of the Windows baud rate aliasing guide.This basic chat tutorial shows you how to get wireless text chat going between two computers using Digi’s XBee ZB Zigbee Wireless Modules (Series 2). As such, it can be very easy to wind up with large enough of a clock skew (1-3%) between two serial devices to cause communication issues. The clock divisors in the FT4232 and other FTDI chips have limited configurability. Take care when configuring arbitrary serial baud rates. Celebrate! Any serial connection you open at the standard baud rate you’ve aliased should now use the other clock rate you’ve specified.This section can also configure other functionality of the device, for which you should refer to the FTDI docs. Here, I’ve aliased 300 Baud to 3.2 MBaud. IdVendor 1027 ConfigData BaudRates B300 3200000 Īs you can see, there’s a new key called “BaudRates” with an extra dictionary mapping standard baud rates to custom ones. The last few lines of your device-specific configuration will then look like this: Below the vendor ID configuration entry, add a new dictionary with a key of “ConfigData” to configure the baud rate alias you would like to set up.

The block of XML you’re interested in will look something like this:įT4232H_C CFBundleIdentifier IOClass FTDIUSBSerialDriver IOProviderClass IOUSBInterface bConfigurationValue 1 bInterfaceNumber 2 bcdDevice 2048 idProduct 24593 idVendor 1027

Locate the driver entry associated with the decimal encoded PID and VID of your USB device.

The ist file can be found at /System/Library/Extensions/FTDIUSBSerialDriver.kext/Contents/ist

Open the FTDI driver’s ist in your favorite text editor as administrator.

In the case of my FT4232, where I was interested in aliasing baud rates for port C of the device, the hex VID PID pair are 0x0403 and 0圆011, which translate to 103 decimal accordingly. Conversion to decimal can be done by googling “0xHEX_VALUE to decimal”. These can be both be found under the device properties within the system profiler.

Grab the VID and PID of your USB UART adapter, and convert them to decimal.

#COOLTERM YOUR SYSTEM DOES NOT HAVE ANY SERIAL PORTS FOR MAC#

Install the FTDI VCP Drivers for Mac OS.

#COOLTERM YOUR SYSTEM DOES NOT HAVE ANY SERIAL PORTS MAC OS#

I only located the Mac OS application note after figuring out the procedure myself, so I’ll break it down here for you.

#COOLTERM YOUR SYSTEM DOES NOT HAVE ANY SERIAL PORTS FOR MAC OS#

This is a task FTDI has outlined quite well for windows in an application note, and it is also buried in a application note for Mac OS X. As such, I was left with the task of aliasing some other standard baud rate to 3.2MBaud in the virtual com port drivers. These extended baud rates are readily available with FTDI’s D2XX drivers, but I wanted to retain the ability to use a standard serial programming API to communicate with the hardware. Since this is a nonstandard serial rate, I set out to find a way to configure a relatively cheap USB UART bridge that supported communications at this speed.įTDI makes a chip called the FT4232 that has four separate UART interfaces and supports baud rates from 3MBaud to 12MBaud using some extended clock settings. For a recent project, I needed to interface my computer to an embedded device over a RS-422 connection at 3.2Mbaud.