+++ /dev/null
- ******************** (C) COPYRIGHT 2010 NXPSemiconductors *******************\r
- * @file USBDEV\USBCDC\abstract.txt \r
- * @author NXP MCU SW Application Team\r
- * @version 2.0\r
- * @date \r
- * @brief Description of the USBDEV CDC example.\r
- ******************************************************************************\r
- * Software that is described herein is for illustrative purposes only\r
- * which provides customers with programming information regarding the\r
- * products. This software is supplied "AS IS" without any warranties.\r
- * NXP Semiconductors assumes no responsibility or liability for the\r
- * use of the software, conveys no license or title under any patent,\r
- * copyright, or mask work right to the product. NXP Semiconductors\r
- * reserves the right to make changes in the software without\r
- * notification. NXP Semiconductors also make no representation or\r
- * warranty that such application will be suitable for the specified\r
- * use without further testing or modification.\r
- ******************************************************************************\r
- \r
-@Example description:\r
- Purpose:\r
- This example describes how to use USBDEV on LPC1768 to demo the virtual COM port.\r
- Process: \r
- Clock Settings:\r
- - XTAL = 12 MHz\r
- - PLL = 400 MHz\r
- - processor clock = CCLK = 100 MHz\r
- - USB clock = 48 MHz\r
- - CCLK / 4 clock = 25 MHz\r
- \r
- The PC will install a virtual COM port on the PC (see Driver Installation).\r
- After installation an additional port "LPC17xx USB VCom Port(COMx)"\r
- can be found under System/Hardware/Device Manager/Ports(COM&LPT).\r
- Number "x" is not fixed as different PC configuration may have different \r
- "x" displayed on the device manager. The USB host driver assigns "x" \r
- dynamically based on the existing COM port configuration of the system.\r
- \r
- Testing the USB Virtual COM port with serial cable:\r
-\r
- Open two Hyperterminal windows. \r
- One with "LPC17xx USB VCom Port(COMx)" \r
- One with "Communications Port (COM1)".\r
- Connect PC port COM1 to the comport on the board and open "COM1" \r
- and "COMx". Data from COM1 will be echoed on "COMx" and visa versa. \r
- So, this is bi-directional communication between the physical COM\r
- port 0 or 1 on the board and the virtual COM port COMx on host PC.\r
- By default, COM PORT1 on the board is used for VirtualCOM port test.\r
- In order to use COM PORT0 on the board, modify the definition PORT_NUM\r
- from 1 to 0 in serial.h, recompile and reprogram the flash. RST jumper\r
- needs to removed to start the Virtual COM port test. \r
- \r
-@Driver Installation:\r
- "Welcome to the Found New Hardware Wizard" appears\r
- - select 'No, not this time'\r
- - press 'Next'\r
-\r
- - select 'Install from a list or specific location (Advanced)'\r
- - press 'Next'\r
-\r
- - select 'Search for the best driver in these locations'\r
- - check 'include this location in the serach'\r
- - set to <project folder>\r
- - press 'Next'\r
-\r
- "Hardware Installation" appears\r
- "has not passed Windows Logo testing..."\r
- - press 'Continue Anyway'\r
-\r
- "Completing the Found New Hardware Wizard" appears\r
- - press 'Finish'\r
- \r
-@Directory contents:\r
- \EWARM: includes EWARM (IAR) project and configuration files\r
- \Keil: includes RVMDK (Keil)project and configuration files \r
- \r
- cdc.h: USB CDC (Communication Device) Definitions\r
- cdcuser.h/.c: USB Communication Device Class User module\r
- lpc17xx_libcfg.h: Library configuration file - include needed driver library for this example \r
- serial.h/.c: serial port handling for LPC17xx\r
- usb.h: USB Definitions\r
- usbcfg.h: USB Custom Configuration\r
- usbcore.h/.c: USB Core Module\r
- usbdesc.h/.c: USB Descriptors\r
- usbhw.h/.c: SB Hardware Layer Module\r
- usbreg.h: USB Hardware Layer Definitions for NXP Semiconductors LPC \r
- usbuser.h/.c: USB Custom User Module\r
- vcomdemo.h/.c: main program \r
- makefile: Example's makefile (to build with GNU toolchain)\r
- lpc17xx-vom.inf: driver info for VCOM LPC17xx (used when Windows requires install driver)\r
-\r
-@How to run:\r
- Hardware configuration: \r
- This example was tested only on:\r
- Keil MCB1700 with LPC1768 vers.1\r
- These jumpers must be configured as following:\r
- - VDDIO: ON\r
- - VDDREGS: ON \r
- - VBUS: ON\r
- - D+: DEVICE\r
- - D-: DEVICE\r
- - UMODE: 1-2 (USB)\r
- - E/U: 1-2 (USB)\r
- - Remain jumpers: OFF\r
- \r
- Running mode:\r
- This example can run on RAM/ROM mode.\r
- \r
- Note: If want to burn hex file to board by using Flash Magic, these jumpers need\r
- to be connected:\r
- - MCB1700 with LPC1768 ver.1:\r
- + RST: ON\r
- + ISP: ON\r
- - IAR LPC1768 KickStart vers.A:\r
- + RST_E: ON\r
- + ISP_E: ON\r
- \r
- (Please reference "LPC1000 Software Development Toolchain" - chapter 4 "Creating and working with\r
- LPC1000CMSIS project" for more information)\r
- \r
- Step to run:\r
- - Step 1: Build example.\r
- - Step 2: Burn hex file into board (if run on ROM mode)\r
- - Step 3: Configure hardware as above instruction \r
- - Step 4: Hit reset button to run example. (install driver if required)\r
- - Step 5: After see UGL(USB Good Link) led on board turn on, open Device Manager > Ports (COM & LPT)\r
- see if "LPC17xx USB Vcom Port (COMx)" appears or not. \r
- - Step 6: Open one HyperTerminal for COM1 and other for COMx with below configuration:\r
- - 9600 bps\r
- - 8 data bits\r
- - none parity\r
- - 1 stop bit\r
- - None flow control\r
- - Step 7: Sure that you already connected COM1 port on board with PC. Type any character on \r
- one HyperTerminal screen and see this character will be echoed in other screen and vice versa \r
- \r
- (Pls see "LPC17xx Example Description" document - chapter "Examples > USBDEV > USBCDC"\r
- for more details)\r
- \r
-@Tip:\r
- - Open \EWARM\*.eww project file to run example on IAR\r
- - Open \RVMDK\*.uvproj project file to run example on Keil
\ No newline at end of file
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