- #USB SPI DEBUGGING MODE BLUESUITE SERIAL#
- #USB SPI DEBUGGING MODE BLUESUITE UPDATE#
- #USB SPI DEBUGGING MODE BLUESUITE SOFTWARE#
There are various ways round the problem, the simplest is to force the string type to binary. This approach is somewhat inefficient, and works fine on Python 2. This results in a pulse 50 nanoseconds wide, which is probably too narrow for most applications, however in theory you can just duplicate a command to stretch it out, for example to generate a pulse of nanoseconds. This will be too variable and too slow for many applications, so an alternative is to write a string containing multiple data values, e. Having set our chosen pin as an output, and enabled bitbang mode, writing a string to the device handle will set its state. For this reason, all programs using the ftd2xx library normally start by clearing everything in the device to zero, just in case a preceding program has left some settings active. Also note that the device has a tendency to keep its previous settings, even after a reset. Before sending any data to the device, we need to establish which pins does what, as all pin functions are pre-assigned.Įach channel is assigned to one or more ports, which are usually 8-bit, but may have as many as 10 or as few as 4 bits. The program tests simple writes of any size using simple data.If you are a Python programmer, and need a simple USB interface for some hardware, read on…. See the script for the loopback plug assumed configuration. This will work with two RS or backtoback devices or with a loopback plug on the RS end. For my own sentimental reasons I've kept a copy of the original websites here.
#USB SPI DEBUGGING MODE BLUESUITE SOFTWARE#
You'll need to write your own software to set 'unusual' baudrates or just use libftdi library referenced earlier.
#USB SPI DEBUGGING MODE BLUESUITE SERIAL#
If you want to set things like baudrate, flow control etc using the ftdi serial driver you should use stty. The other thing you will probably want to do is strace the application trying to talk to the device. So if you have a new chip you may need to do some driver work! There are a lot more since I wrote the driver so some of the comments for that structure earlier on in the code are incorrect. When I wrote the driver there were only a few chip types. The modprobe above will only work if the driver can figure out the chip type. This may be the best way for you to talk to the device if you are writing programs and need to do more than the serial interface was ever designed for. The usual mistake people make is assuming they can just open the serial port and read and write to it without setting any serial communications parameters.
Any serial application which talks to the device using just the termios interface will probably work. I wrote the driver so I could talk to unix servers and my palm pilot using a usb serial interface from my laptop.įor this to work you need a standard serial interface so you can use off the shelf tools like terminal emulators and palm pilot software. If you want to actively maintain the driver and look after this sourceforge site send me a mail at bill.
#USB SPI DEBUGGING MODE BLUESUITE UPDATE#
Every so often I will update this webpage. I Bill Ryder do not maintain this driver anymore. All comments in this page are based on 2. Most distros will include the driver by default. Although the driver is marked experimental it's not really.