Frank 26080115
These are the examples provided for [[/users/frank26080115/libraries/LPC1700CMSIS_Lib/]] Note, the entire "program" is not compilable!
USBDEV/USBAudio/Abstract.h@0:bf7b9fba3924, 2011-03-20 (annotated)
- Committer:
- frank26080115
- Date:
- Sun Mar 20 05:38:56 2011 +0000
- Revision:
- 0:bf7b9fba3924
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| frank26080115 | 0:bf7b9fba3924 | 1 | ******************** (C) COPYRIGHT 2010 NXPSemiconductors ******************* |
| frank26080115 | 0:bf7b9fba3924 | 2 | * @file USBDEV\USBAudio\abstract.txt |
| frank26080115 | 0:bf7b9fba3924 | 3 | * @author NXP MCU SW Application Team |
| frank26080115 | 0:bf7b9fba3924 | 4 | * @version 2.0 |
| frank26080115 | 0:bf7b9fba3924 | 5 | * @date |
| frank26080115 | 0:bf7b9fba3924 | 6 | * @brief Description of the USBDEV Audio example. |
| frank26080115 | 0:bf7b9fba3924 | 7 | ****************************************************************************** |
| frank26080115 | 0:bf7b9fba3924 | 8 | * Software that is described herein is for illustrative purposes only |
| frank26080115 | 0:bf7b9fba3924 | 9 | * which provides customers with programming information regarding the |
| frank26080115 | 0:bf7b9fba3924 | 10 | * products. This software is supplied "AS IS" without any warranties. |
| frank26080115 | 0:bf7b9fba3924 | 11 | * NXP Semiconductors assumes no responsibility or liability for the |
| frank26080115 | 0:bf7b9fba3924 | 12 | * use of the software, conveys no license or title under any patent, |
| frank26080115 | 0:bf7b9fba3924 | 13 | * copyright, or mask work right to the product. NXP Semiconductors |
| frank26080115 | 0:bf7b9fba3924 | 14 | * reserves the right to make changes in the software without |
| frank26080115 | 0:bf7b9fba3924 | 15 | * notification. NXP Semiconductors also make no representation or |
| frank26080115 | 0:bf7b9fba3924 | 16 | * warranty that such application will be suitable for the specified |
| frank26080115 | 0:bf7b9fba3924 | 17 | * use without further testing or modification. |
| frank26080115 | 0:bf7b9fba3924 | 18 | ****************************************************************************** |
| frank26080115 | 0:bf7b9fba3924 | 19 | |
| frank26080115 | 0:bf7b9fba3924 | 20 | @Example description: |
| frank26080115 | 0:bf7b9fba3924 | 21 | Purpose: |
| frank26080115 | 0:bf7b9fba3924 | 22 | This example describes how to use USBDEV on LPC1768 to demo the USB Audio Device - Speaker. |
| frank26080115 | 0:bf7b9fba3924 | 23 | Process: |
| frank26080115 | 0:bf7b9fba3924 | 24 | Clock Settings: |
| frank26080115 | 0:bf7b9fba3924 | 25 | - XTAL = 12 MHz |
| frank26080115 | 0:bf7b9fba3924 | 26 | - PLL = 400 MHz |
| frank26080115 | 0:bf7b9fba3924 | 27 | - processor clock = CCLK = 100 MHz |
| frank26080115 | 0:bf7b9fba3924 | 28 | - USB clock = 48 MHz |
| frank26080115 | 0:bf7b9fba3924 | 29 | - CCLK / 4 clock = 25 MHz |
| frank26080115 | 0:bf7b9fba3924 | 30 | The USB Audio Device is recognized by the host PC running |
| frank26080115 | 0:bf7b9fba3924 | 31 | Windows which will load a generic Audio driver and add a |
| frank26080115 | 0:bf7b9fba3924 | 32 | speaker which can be used for sound playback on the PC. |
| frank26080115 | 0:bf7b9fba3924 | 33 | Potenciometer on the board is used for setting the Volume. |
| frank26080115 | 0:bf7b9fba3924 | 34 | |
| frank26080115 | 0:bf7b9fba3924 | 35 | @Directory contents: |
| frank26080115 | 0:bf7b9fba3924 | 36 | \EWARM: includes EWARM (IAR) project and configuration files |
| frank26080115 | 0:bf7b9fba3924 | 37 | \Keil: includes RVMDK (Keil)project and configuration files |
| frank26080115 | 0:bf7b9fba3924 | 38 | |
| frank26080115 | 0:bf7b9fba3924 | 39 | adcuser.h/.c: Audio Device Class Custom User Module |
| frank26080115 | 0:bf7b9fba3924 | 40 | audio.h: USB Audio Device Class Definitions |
| frank26080115 | 0:bf7b9fba3924 | 41 | lpc17xx_libcfg.h: Library configuration file - include needed driver library for this example |
| frank26080115 | 0:bf7b9fba3924 | 42 | usb.h: USB Definitions |
| frank26080115 | 0:bf7b9fba3924 | 43 | usbaudio.h: USB Audio Demo Definitions |
| frank26080115 | 0:bf7b9fba3924 | 44 | usbcfg.h: USB Custom Configuration |
| frank26080115 | 0:bf7b9fba3924 | 45 | usbcore.h/.c: USB Core Module |
| frank26080115 | 0:bf7b9fba3924 | 46 | usbdesc.h/.c: USB Descriptors |
| frank26080115 | 0:bf7b9fba3924 | 47 | usbdmain.c: main program |
| frank26080115 | 0:bf7b9fba3924 | 48 | usbhw.h/.c: SB Hardware Layer Module |
| frank26080115 | 0:bf7b9fba3924 | 49 | usbreg.h: USB Hardware Layer Definitions for NXP Semiconductors LPC |
| frank26080115 | 0:bf7b9fba3924 | 50 | usbuser.h/.c: USB Custom User Module |
| frank26080115 | 0:bf7b9fba3924 | 51 | makefile: Example's makefile (to build with GNU toolchain) |
| frank26080115 | 0:bf7b9fba3924 | 52 | |
| frank26080115 | 0:bf7b9fba3924 | 53 | @How to run: |
| frank26080115 | 0:bf7b9fba3924 | 54 | Hardware configuration: |
| frank26080115 | 0:bf7b9fba3924 | 55 | This example was tested only on: |
| frank26080115 | 0:bf7b9fba3924 | 56 | Keil MCB1700 with LPC1768 vers.1 |
| frank26080115 | 0:bf7b9fba3924 | 57 | These jumpers must be configured as following: |
| frank26080115 | 0:bf7b9fba3924 | 58 | - VDDIO: ON |
| frank26080115 | 0:bf7b9fba3924 | 59 | - VDDREGS: ON |
| frank26080115 | 0:bf7b9fba3924 | 60 | - VBUS: ON |
| frank26080115 | 0:bf7b9fba3924 | 61 | - D+: DEVICE |
| frank26080115 | 0:bf7b9fba3924 | 62 | - D-: DEVICE |
| frank26080115 | 0:bf7b9fba3924 | 63 | - UMODE: 1-2 (USB) |
| frank26080115 | 0:bf7b9fba3924 | 64 | - E/U: 1-2 (USB) |
| frank26080115 | 0:bf7b9fba3924 | 65 | - SPK: ON |
| frank26080115 | 0:bf7b9fba3924 | 66 | - AD0.2: ON |
| frank26080115 | 0:bf7b9fba3924 | 67 | - Remain jumpers: OFF |
| frank26080115 | 0:bf7b9fba3924 | 68 | |
| frank26080115 | 0:bf7b9fba3924 | 69 | Running mode: |
| frank26080115 | 0:bf7b9fba3924 | 70 | This example can run on RAM/ROM mode. |
| frank26080115 | 0:bf7b9fba3924 | 71 | |
| frank26080115 | 0:bf7b9fba3924 | 72 | Note: If want to burn hex file to board by using Flash Magic, these jumpers need |
| frank26080115 | 0:bf7b9fba3924 | 73 | to be connected: |
| frank26080115 | 0:bf7b9fba3924 | 74 | - MCB1700 with LPC1768 ver.1: |
| frank26080115 | 0:bf7b9fba3924 | 75 | + RST: ON |
| frank26080115 | 0:bf7b9fba3924 | 76 | + ISP: ON |
| frank26080115 | 0:bf7b9fba3924 | 77 | - IAR LPC1768 KickStart vers.A: |
| frank26080115 | 0:bf7b9fba3924 | 78 | + RST_E: ON |
| frank26080115 | 0:bf7b9fba3924 | 79 | + ISP_E: ON |
| frank26080115 | 0:bf7b9fba3924 | 80 | |
| frank26080115 | 0:bf7b9fba3924 | 81 | (Please reference "LPC1000 Software Development Toolchain" - chapter 4 "Creating and working with |
| frank26080115 | 0:bf7b9fba3924 | 82 | LPC1000CMSIS project" for more information) |
| frank26080115 | 0:bf7b9fba3924 | 83 | |
| frank26080115 | 0:bf7b9fba3924 | 84 | Step to run: |
| frank26080115 | 0:bf7b9fba3924 | 85 | - Step 1: Build example. |
| frank26080115 | 0:bf7b9fba3924 | 86 | - Step 2: Burn hex file into board (if run on ROM mode) |
| frank26080115 | 0:bf7b9fba3924 | 87 | - Step 3: Configure hardware as above instruction |
| frank26080115 | 0:bf7b9fba3924 | 88 | - Step 4: Hit reset button to run example. |
| frank26080115 | 0:bf7b9fba3924 | 89 | - Step 5: After see UGL(USB Good Link) led on board turn on, open "Device Manager > Sound,video |
| frank26080115 | 0:bf7b9fba3924 | 90 | and game controller" to see if "USB Audio Device" appears or not. |
| frank26080115 | 0:bf7b9fba3924 | 91 | - Step 6: Open "Control Panel > Sound > Audio" choose Default device is "NXP LPC17xx Speaker" |
| frank26080115 | 0:bf7b9fba3924 | 92 | - Step 7: Choose Default device "NXP LPC17xx Speaker" for Voice tab |
| frank26080115 | 0:bf7b9fba3924 | 93 | - Step 8: Try to play a sound file (such as .mp3 file) and hear the voice from speaker on board. |
| frank26080115 | 0:bf7b9fba3924 | 94 | Turn potiometer to change volume. |
| frank26080115 | 0:bf7b9fba3924 | 95 | |
| frank26080115 | 0:bf7b9fba3924 | 96 | (Pls see "LPC17xx Example Description" document - chapter "Examples > USBDEV > USBAudio" |
| frank26080115 | 0:bf7b9fba3924 | 97 | for more details) |
| frank26080115 | 0:bf7b9fba3924 | 98 | |
| frank26080115 | 0:bf7b9fba3924 | 99 | @Tip: |
| frank26080115 | 0:bf7b9fba3924 | 100 | - Open \EWARM\*.eww project file to run example on IAR |
| frank26080115 | 0:bf7b9fba3924 | 101 | - Open \RVMDK\*.uvproj project file to run example on Keil |