Getting Started: Running the “Device – CDC – Serial Emulator” demo

Required Hardware: 1

Configuration 1: PICDEM FS USB.. 1

Configuration 2: PIC18F87J50 PIM + HPC Explorer 1

Configuration 3: Explorer 16. 1

Configuration 4: Low Pin Count Development Kit 1

Configuring the Hardware: 1

Configuration 1: PICDEM FS USB.. 2

Configuration 2: PIC18F87J50 PIM... 2

Configuration 3: Explorer 16. 3

Configuration 4: Low Pin Count Development Kit 5

Firmware. 5

Running the Demo. 6

Trademarks: 8

## Required Hardware:

To run this project, you will need one of the following sets of hardware:

### Configuration 1: PICDEM FS USB

PICDEM FS USB (DM163025)

### Configuration 2: PIC18F87J50 PIM + HPC Explorer

PIC18F87J50 Plug-In-Module (PIM) (MA180021)

### Configuration 3: Explorer 16

PIC24FJ256GB110 Plug-In-Module (PIM) (MA240014)

Explorer 16 (DM240001)

USB PICtail™ Plus Daughter Card (AC164131)

### Configuration 4: Low Pin Count USB Development Kit

Low Pin Count USB Development Kit with PICKit 2 Debugger/Programmer (DV164126) or without Debugger/Programmer (DM164127)

## Configuring the Hardware:

This section describes how to set up the various configurations of hardware to run this demo.

Configuration 1: PICDEM FS USB

Configuration 2: PIC18F87J50 PIM + HPC Explorer

Configuration 3: PIC24FJ256GB110 PIM + Explorer 16

Configuration 4: Low Pin Count USB Development Kit

### Configuration 1: PICDEM FS USB

1) If using the PICDEM FS USB Demo Board, no hardware related configuration or jumper setting changes should be necessary. The demo board need only be programmed with appropriate firmware.

### Configuration 2: PIC18F87J50 PIM

1) Short JP4 on the PIC18F87J50 PIM. This allows the demo board to be powered through bus power.

2) Short JP1 such that the “R” and “U” options are shorted.

### Configuration 3: Explorer 16

1) Before attaching the PIC24FJ256GB110 PIM to the Explorer 16 board, insure that the processor selector switch (S2) is in the “PIM” position as seen in the image below.

2) Short the J7 jumper to the “PIC24” setting

3) Before connecting the PIC24FJ256GB110 PIM to the Explorer 16 board, remove all attached cables from both boards. Connect the PIC24FJ256GB110 PIM to the Explorer 16 board. Be careful when connecting the boards to insure that no pins are bent or damaged during the process. Also insure that the PIM is not shifted in any direction and that all of the headers are properly aligned.

4) On the USB PICTail Plus board, short jumper JP1. Remove all other shorts on the board.

5) Connect the USB PICTail Plus board to either of the female PICTail Plus connectors or on the card edge connector (J9) at the edge of the Explorer 16 board.

### Configuration 4: Low Pin Count USB Development Kit

1) Short pins 2 and 3 of J14

Firmware:

To run this project, you will need to load the corresponding firmware into the devices. There are two methods available for loading the demos: Precompiled demos and source code projects.

Precompiled Demos are available in the “<Install Directory>\USB – Precompiled Demos” folders. Each demo should be prefaced with the hardware platform it is compiled for. Select the file that matches the hardware that you have and the demo that you want to run. For more information about how to load a precompiled project, please see the “Getting Started – Loading a precompiled demo” guide.

The source code for this demo is available in the “<Install Directory\USB Device – CDC – Basic Demo” directory. In this directory you will find all of the user level source and header files as well as project and workspace files for each of the hardware platforms. Find the project (*.mcp) or workspace (*.mcw) file that corresponds to the hardware platform you wish to test. Compile and program the demo code into the hardware platform. For more help on how to compile and program projects, please refer to the MPLAB® IDE help available through the help menu of MPLAB IDE (Help->Topics…->MPLAB IDE).

Running the Demo:

This demo allows the device to appear like a serial (COM) port to the host. This demo will take data sent over the USB CDC interface and send it on the UART of the microcontroller.

In order to run this demo first compile and program the target device. Attach the device to the host with the USB cable. Also connect the RS232 port of the demo board to a computer. This computer and be the same computer as the USB connection or it can be a different computer. If the host is a PC and this is the first time you have plugged this device into the computer then you may be asked for a .inf file.

Select the “Install from a list or specific location (Advanced)” option. Point to the “<Install Directory>\USB Device - CDC – Serial Emulator\inf\win2k_winxp” directory

Once the device is successfully installed, open up a terminal program, such as hyperterminal. Select the appropriate COM port for the USB virtual COM port. On most machines this will be COM5 or higher. On the computer where the RS232 cable it attached, open a second terminal program. Select the hardware COM port associated with that computer. Please insure that the baud rate for both terminal windows is the same.

Once everything is configured correctly, typing a key in one terminal window will result in the same data to show up in the second terminal window.

Note: Some terminal programs, like hyperterminal, require users to click the disconnect button before removing the device from the computer. Failing to do so may result in having to close and open the program again in order to reconnect to the device.

## Trademarks:

The Microchip name and logo, the Microchip logo, MPLAB, and PIC are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

PICDEM and PICTail are registered trademarks of Microchip Technology Incorporated in the U.S.A. and other countries.

Microsoft, Windows, and Windows Vista are either registered trademarks or trademarks of Microsoft Corporation in the United States and/or other countries.