These are the examples provided for [[/users/frank26080115/libraries/LPC1700CMSIS_Lib/]] Note, the entire "program" is not compilable!

Committer:
frank26080115
Date:
Sun Mar 20 05:38:56 2011 +0000
Revision:
0:bf7b9fba3924

        

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frank26080115 0:bf7b9fba3924 1 ******************** (C) COPYRIGHT 2010 NXPSemiconductors *******************
frank26080115 0:bf7b9fba3924 2 * @file ADC\HardwareTrigger\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 ADC hardware-trigger 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 ADC conversion in hardware-triggered mode.
frank26080115 0:bf7b9fba3924 23 Process:
frank26080115 0:bf7b9fba3924 24 The ADC conversion rate is 200KHz. A fully A fully accurate conversion requires 65 of these clocks.
frank26080115 0:bf7b9fba3924 25 So ADC clock = 200KHz * 65 = 13MHz.
frank26080115 0:bf7b9fba3924 26 Note that maximum ADC clock input is 13MHz.
frank26080115 0:bf7b9fba3924 27
frank26080115 0:bf7b9fba3924 28 When INT0 falling adge occurs, ADC will start converting.
frank26080115 0:bf7b9fba3924 29 ADC will generate interrupt at the end of each conversion. ADC service routine will be invoked
frank26080115 0:bf7b9fba3924 30 to check ADC status, if "DONE bit" is set, ADC converted data will be stored in "adc_value".
frank26080115 0:bf7b9fba3924 31 ADC interrupt is disabled and re-enabled for the next conversion.
frank26080115 0:bf7b9fba3924 32 ADC converted data are displayed via UART0.
frank26080115 0:bf7b9fba3924 33
frank26080115 0:bf7b9fba3924 34 Turn potentiometer to change ADC signal input.
frank26080115 0:bf7b9fba3924 35
frank26080115 0:bf7b9fba3924 36 @Directory contents:
frank26080115 0:bf7b9fba3924 37 \EWARM: includes EWARM (IAR) project and configuration files
frank26080115 0:bf7b9fba3924 38 \Keil: includes RVMDK (Keil)project and configuration files
frank26080115 0:bf7b9fba3924 39
frank26080115 0:bf7b9fba3924 40 lpc17xx_libcfg.h: Library configuration file - include needed driver library for this example
frank26080115 0:bf7b9fba3924 41 makefile: Example's makefile (to build with GNU toolchain)
frank26080115 0:bf7b9fba3924 42 adc_hardware_trigger_test.c: Main program
frank26080115 0:bf7b9fba3924 43
frank26080115 0:bf7b9fba3924 44 @How to run:
frank26080115 0:bf7b9fba3924 45 Hardware configuration:
frank26080115 0:bf7b9fba3924 46 This example was tested on:
frank26080115 0:bf7b9fba3924 47 Keil MCB1700 with LPC1768 vers.1
frank26080115 0:bf7b9fba3924 48 These jumpers must be configured as following:
frank26080115 0:bf7b9fba3924 49 - VDDIO: ON
frank26080115 0:bf7b9fba3924 50 - VDDREGS: ON
frank26080115 0:bf7b9fba3924 51 - VBUS: ON
frank26080115 0:bf7b9fba3924 52 - AD0.2: ON
frank26080115 0:bf7b9fba3924 53 - INT0: ON
frank26080115 0:bf7b9fba3924 54 - Remain jumpers: OFF
frank26080115 0:bf7b9fba3924 55
frank26080115 0:bf7b9fba3924 56 Serial display configuration: (e.g: TeraTerm, Hyperterminal, Flash Magic...)
frank26080115 0:bf7b9fba3924 57 – 115200bps
frank26080115 0:bf7b9fba3924 58 – 8 data bit
frank26080115 0:bf7b9fba3924 59 – No parity
frank26080115 0:bf7b9fba3924 60 – 1 stop bit
frank26080115 0:bf7b9fba3924 61 – No flow control
frank26080115 0:bf7b9fba3924 62
frank26080115 0:bf7b9fba3924 63 Running mode:
frank26080115 0:bf7b9fba3924 64 This example can run on RAM/ROM mode.
frank26080115 0:bf7b9fba3924 65
frank26080115 0:bf7b9fba3924 66 Note: If want to burn hex file to board by using Flash Magic, these jumpers need
frank26080115 0:bf7b9fba3924 67 to be connected:
frank26080115 0:bf7b9fba3924 68 - MCB1700 with LPC1768 ver.1:
frank26080115 0:bf7b9fba3924 69 + RST: ON
frank26080115 0:bf7b9fba3924 70 + ISP: ON
frank26080115 0:bf7b9fba3924 71 - IAR LPC1768 KickStart vers.A:
frank26080115 0:bf7b9fba3924 72 + RST_E: ON
frank26080115 0:bf7b9fba3924 73 + ISP_E: ON
frank26080115 0:bf7b9fba3924 74
frank26080115 0:bf7b9fba3924 75 (Please reference "LPC1000 Software Development Toolchain" - chapter 4 "Creating and working with
frank26080115 0:bf7b9fba3924 76 LPC1000CMSIS project" for more information)
frank26080115 0:bf7b9fba3924 77
frank26080115 0:bf7b9fba3924 78 Step to run:
frank26080115 0:bf7b9fba3924 79 - Step 1: Build example.
frank26080115 0:bf7b9fba3924 80 - Step 2: Burn hex file into board (if run on ROM mode)
frank26080115 0:bf7b9fba3924 81 - Step 3: Connect UART0 on this board to COM port on your computer
frank26080115 0:bf7b9fba3924 82 - Step 4: Configure hardware and serial display as above instruction
frank26080115 0:bf7b9fba3924 83 - Step 5: Run example
frank26080115 0:bf7b9fba3924 84 Press INT0 button to start the ADC conversion
frank26080115 0:bf7b9fba3924 85 Tune potetiometer and press INT0 button again then observe data on serial display
frank26080115 0:bf7b9fba3924 86
frank26080115 0:bf7b9fba3924 87 (Pls see "LPC17xx Example Description" document - chapter "Examples > ADC > HardwareTrigger"
frank26080115 0:bf7b9fba3924 88 for more details)
frank26080115 0:bf7b9fba3924 89
frank26080115 0:bf7b9fba3924 90 @Tip:
frank26080115 0:bf7b9fba3924 91 - Open \EWARM\*.eww project file to run example on IAR
frank26080115 0:bf7b9fba3924 92 - Open \RVMDK\*.uvproj project file to run example on Keil