Microchip Technology's MCP2200 USB-to-UART protocol converter, with its. USB driver and software support; Royalty-free drivers for virtual com port (VCP). The MCP2200 MCP2200 is a USB-to-UART serial converter which enables USB connectivity in application that have a UART interface. The device reduces external components by integrating the USB termination resistors.

Additional Features Universal Serial Bus (USB) • Supports Full-Speed USB (12 Mb/s) • Implements USB Protocol Composite Device CDC Device (communications and control). • Class 02h - CDC: USB-to-UART communications and I/O control • Class 03h - HID: I/O control, EEPROM access, and initial configuration • 128 byte buffer to handle data throughput at any UART baud rate.

Jump to:, Project Summary Name: MCP2200 breakout board Buy it: Price: $15 Status: Manufacturing: Forum:. The is a new USB to serial converter chip from Microchip. This breakout board brings all the pins to bread-board friendly headers. • USB CDC virtual serial port interface • Secondary HID configuration interface • Up to 8 additional IO • 256bytes user EEPROM • TX/RX indicator LEDs • All pins to bread-board friendly header The MCP2200 is actually just a, but it's slightly less expensive than the PIC alone. Contents • • • • • • • • • • • • • Hardware Click for a full size schematic image. Schematic and PCB were designed with the freeware version of, download the latest project files from our. MCP2200 The MCP2200 is actually a PIC 18F14K50 with a special firmware put into it.

It requires the same sort of that a PIC does: • A reset pin is held high for normal operation with a 1K pull-up resistor (R6) • C1 is a decoupling capacitor (1uF) for the single MCP2200 supply pin • An internal 3.3volt regulator supplies the USB peripheral, it requires an external 470nF capacitor (C2) • A 12Mhz crystal(Y1) and two 27pF capacitor (C3,C4) provide the clock The chip is powered directly from the 5volt USB supply. Ferrite bead (L1) and 10uF capacitor (C5) filter the supply (not shown). LEDs LED connections LED Pin Indicates D1 GP6 USB RX D2 GP7 USB TX D3 GP0 /SUSPEND D4 GP1 CONFIG Four LEDs (D1-D4) are connected to the MCP2200 status indicator pins, as shown above. Each LED has a 1K current limiting resistor (R1-R4). PCB We used the freeware version of to make the schematic and PCB. Download the latest board files from.

Some parts are little close in places, especially around the crystal. If you've soldered surface mount boards before this shouldn't be a challenge. We brought the most common UART signals to a secondary header at the edge of the PCB. This makes it easier to use with a breadboard. Partslist Click for a full size placement image. Partlist Part Quantity Value Package C1 1 C805 C2 1 470nF C805 C3, C4 2 C805 C5 1 SMC_A LED1-4 4 LED-805 IC1 1 SSOP20 L1 1 FB805 R1-R4, R6 5 R805 X1 1 CONN_MINI_USB_B Y1 1 12Mhz crystal SMD 4X6 The latest sources and distributors are in the.

Hart master programmu. Note that this ranging of a field device is not the same as calibrating it. Square root functions, for example, are used to approximate a flow measurement from a differential pressure measurement.

See something missing? Drivers • The MCP2200 appears as a USB CDC (virtual serial port) device. Windows already has a driver, but you need to assign it with an.inf file.

The first time you plug-in adapter Windows will prompt for driver. Point windows to the.inf file supplied in the Microchip download. After the driver is installed you can go to Windows control panel and see the serial port number assigned to the device. Configuration utility In addition to the USB serial port interface, the MCP2200 has a second USB HID interface used to set the device configuration. A utility in the MCP2200 driver download can program a custom USB VID and PID, change the behavior of the indicator LEDs, and modify other configuration options. Issues with the MCP2200 Windows XP SP3+ required Windows XP issues: SP3 or later required!

This is a composite USB device (serial port and HID configuration channel). A composite serial device will only work on Windows XP SP3 and higher. The device will connect and the transmit LED will blink (if configured) but no data is actually sent or received. RTS/CTS RTS/CTS are handled locally on the chip! The CDC serial device specification.