Independent design-based distributor Alpha Micro
has added to its range of connectivity offerings with two new FTDI
products that address the rapidly growing popularity of the
Raspberry Pi (RPi) computing platform. The TTL-232R-RPi is a USB-to-TTL Serial UART
debug cabling solution that incorporates the company's FT232RQ
high performance interface IC. This is complemented by the RPi
USB Hub Module, which is designed to connect to an RPi unit and
expand the number of interfaces that can be accessed downstream
from a host.
Released recently, the Raspberry Pi is a simple,
ultra-low cost computer board aimed at inspiring young engineers to
learn the fundamental principles of programming. Running the Linux
operating system, with a compact format that is the size of a
credit card, it utilises a 700 MHz ARM-based processor and has a
256 MByte SDRAM memory.
Through FTDI's debug cable it will be possible
for laptop/desktop PCs to interface with the RPi board and perform
in-depth analysis on the software application being developed.
1m long cable connects directly to the RPi's serial port. This
port will output kernel debug messages to be acquired by the PC.
The FT232RQ USB-to-Serial UART interface IC within
the TTL-232R-RPi cable provides a USB to
asynchronous serial data transfer path capable of supporting data
rates from 300 bits/s to 3 Mbits/s at 3.3 V TTL levels. The chip
handles all the USB signalling and protocol requirements.
The RPi USB Hub Module utilises a
USB-to-UART/MPSSE IC, along with a GL850G USB hub controller IC. It
provides engineers with up to 4 downstream USB 2.0 Hi-Speed
(480Mbit/s) ports. Asynchronous serial data transfer rates from 300
bits/s to 12 Mbits/s at 3.3 V TTL levels are supported, while
synchronous serial data rates of up to 30 Mbits/s can be dealt with
on JTAG, SPI and I2C interfaces. The module has
dimensions of 33.45 mm x 65 mm.
"The RPi concept has been incredibly well
received by young aspiring engineers and the TTL-232R-RPi enables the RPi user to do a
quick and extensive de-bug and analysis of their programming. In
addition to this, the USB Hub Module gives better flexibility
to RPi based system designs. Both of these products really endorse
the expertise in USB conversion that FTDI's engineering team have
built up over many years," said Maxine Hewitt, Marketing Director,
Alpha Micro Components.
An operational temperature range covering -40 °C
to +85 °C is supported by both the cable and the hub module
offerings. All the components used in their construction are fully
compliant with the RoHS directive.
The TTL-232R-RPi debug cable and the Single RPi
Hub Module are available August 2012, please contact
us for more information.