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All
Micro-USB modules are shipped with CP2102 chips fitted.
For
product download files click
here
See
Also 4D Systems USB-5V Kit. Can be used to add Micro-USB to many
other projects.
See
also Cable to suit.
Micro-USB
Module. USB bus to micro adapter.
Micro-USB-Module
|
CP2102
|
Adding
USB to your favorite micro is as simple as adding 8 pins to your target
board on a .1" grid.
Read
this review by Jonathan Oxer
Note
**** These pins are standard size .025" (wire wrap type) pins that will
fit into a breadboard or .025" socket header.
The
Micro-USB is based on Silicon
Laboratories CP2101-CP2102 I.C.'s, and has the world's smallest footprint
for this type of device.
Micro-USB
uses a standard USB B connector (same as all of the other modules that
Dontronics sells) to connect to your PC using a standard AM to BM cable,
and an 8 pin footprint at .1" centers on your target board, to allow simple
connect to your breadboard or Micro board. The CP2102 chip has a UART,
and on-board EEPROM built right it.
See
Features.
Dimensions
are as follows:
Pin1
= origin
Pin1
to Pin2 = 2.54mm or 0.1"
Pin2
to Pin3 = 2.54mm or 0.1"
Pin3
to Pin4 = 2.54mm or 0.1"
Pin4
to Pin5 = 10.16mm or 0.4"
Pin5
to Pin6 = 2.54mm or 0.1"
Pin6
to Pin7 = 7.62mm or 0.3"
Pin7
to Pin8 = 2.54mm or 0.1"
Most
USB to Micro connections will require only Ground, RX, and TX, a 3 wire
circuit. The Micro-USB ignores all of the Modem handshaking lines that
are available from the CP210x chip.
microUSB
Pin Descriptions:
Pin1
- Tx Data :
This
is the transmitted data output from the microUSB. Connect this pin to the
Receive Data Input (Rx) of your target microcontroller.
Pin2
- Rx Data :
This
is the receive data input to the microUSB. Connect this pin to the Transmit
Data Output (Tx) of your target microcontroller.
Pin3
- Suspend :
This
pin becomes high (Logic '1') when the microUSB enters the 'USB Suspend
State'. For most applications this pin can be left unconnected.
Pin4
- *Suspend :
This
pin becomes low (Logic '0') when the microUSB enters the 'USB Suspend State'.
For most applications this pin can be left unconnected.
Pin5
- *Reset :
When
this pin is driven active low from an external device for more than 15us
the microUSB module is RESET. For most applications this pin can be left
unconnected.
Pin6
- +5V :
This
pin supplies 5V to external devices from the USB bus. If this pin is used
please connect a 4.7uf to 10uf capacitor from this pin to GND.
Pin7
- +3.3V :
This
pin supplies a regulated 3.3V to external devices. Maximum of 100mA output
current is available. If this pin is used please connect a 22uf capacitor
from this pin to GND.
Pin8
- GND :
Ground.
CP2102
Features:
The
CP2102 is a single-chip USB to UART bridge that converts data traffic
between USB and UART formats.
The
chip includes a complete USB 2.0 full-speed function controller, bridge
control logic and a UART interface with transmit/receive buffers and modem
handshake signals. The device also features on-board EEPROM, a voltage
regulator, a USB transceiver and an integrated internal oscillator, eliminating
external components generally required in USB applications. System development
is further simplified by the Evaluation Kits, which include a complete
USB to RS232 evaluation board and royalty-free device drivers for PC, (Windows
98SE/2000/XP), Macintosh and Linux platforms.
USB
Function Controller
USB
2.0 compliant, full-speed (12 Mbps)
1024
Bytes of EEPROM
User
programmable custom Baud rates
Integrated
transceiver
Integrated
precision clock
Supports
USB suspend states
On-chip
voltage regulator
VCP
drivers provided
UART
Interface
Supports
all modem interface signals
Hardware
X-On/X-Off handshaking
Supports
5, 6, 7, 8 data bits; 1, 1.5, 2 stop bits
Supports
odd, even, mark, space or no parity
Baud
Rates: 300 bps to 1 Mbps
On-chip
512 byte receive buffer
On-chip
512 byte transmit buffer
Event
character support
Industrial
temp –40 °C to +85 °C
28-pin
Micro Leadframe Package
5
x 5 mm
Applications
USB
to RS-232 converters
USB
to RS-422/RS-485 converters
Upgrade
of legacy RS232 devices
PDA
USB interface cable
Cellular
phone USB interface cable
Barcode
readers
POS
terminals
CP2102.pdf
26-Apr-2006
Feedback to a customer having problems with a GPS system:
Please
ask John the following:
What's
the current consumption of the GPS? If it's more than 100mA he will
need to use this utility
http://www.dontronics.com/zip/microUSB%20CP210xSetIDs.zip
Is
the GPS a standard serial interface, i.e. normal RS232 voltage levels?
The
Rx/Tx signal levels from the micro-USB are 0 to 3.3V levels.
He
can try this as a quick test to see that the uUSB is working.
Attach
the anode of a LED to +3.3V - pin7 then the cathode of the led via a 1K
resistor to the Tx - pin1. Set the baud rate to say 300 or 600 baud and
use Hyperterminal or DockLight type of a serial terminal program to send
any character. Everytime a character is sent the LED should light up briefly.
I
think his problem is the GPS works on 5Volts and expects the Rx/Tx signal
levels to be at 0 to 5V and the uUSB signals are at 3.3Volts.
He
may need to insert 1K resistors in series between the GPS and the uUSB.
He
may wish to send me the data specs of the GPS and I can have a look and
see.
Regards,
Atilla |
For
product download files click
here
Support:
User
Help Forum
CP210x
Manufacturers site for additional Information
You
can ask your questions on the Support
Mailing List and the designer will answer you there. We are trying
to encourage people to use this, as it will also build up an archive of
answers to assist others.
If
you need additional support on any of the above, and you can't find the
information you need in the documentation, then please contact Atilla at
the address below:
This
product is from: 4dsystems.com.au
support
at 4dsystems.com.au
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