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\Polling\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 Polling 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 polling mode.
frank26080115 0:bf7b9fba3924 23 Process:
frank26080115 0:bf7b9fba3924 24 Because the potentiometer on different board connect to different ADC channel, so we have to configure correct
frank26080115 0:bf7b9fba3924 25 ADC channel on each board respectively. In this case,
frank26080115 0:bf7b9fba3924 26 - If using MCB1700 board: ADC is configured to convert signal on channel 2
frank26080115 0:bf7b9fba3924 27 - If using IAR-LPC1768-KS board: ADC is configured to convert signal on channel 5
frank26080115 0:bf7b9fba3924 28 DMA channel 0 was configured in this example.
frank26080115 0:bf7b9fba3924 29 The ADC conversion rate is 200KHz. A fully A fully accurate conversion requires 65 of these clocks.
frank26080115 0:bf7b9fba3924 30 So ADC clock = 200KHz * 65 = 13MHz.
frank26080115 0:bf7b9fba3924 31 Note that maximum ADC clock input is 13MHz.
frank26080115 0:bf7b9fba3924 32
frank26080115 0:bf7b9fba3924 33 After start ADC operation, polling "DONE" bit. If "DONE" bit is set, store ADC converted data in "adc_value"
frank26080115 0:bf7b9fba3924 34 and display this data via UART0 and re-start ADC for next conversion.
frank26080115 0:bf7b9fba3924 35
frank26080115 0:bf7b9fba3924 36 Turn potentiometer to change ADC signal input.
frank26080115 0:bf7b9fba3924 37
frank26080115 0:bf7b9fba3924 38 @Directory contents:
frank26080115 0:bf7b9fba3924 39 \EWARM: includes EWARM (IAR) project and configuration files
frank26080115 0:bf7b9fba3924 40 \Keil: includes RVMDK (Keil)project and configuration files
frank26080115 0:bf7b9fba3924 41
frank26080115 0:bf7b9fba3924 42 lpc17xx_libcfg.h: Library configuration file - include needed driver library for this example
frank26080115 0:bf7b9fba3924 43 makefile: Example's makefile (to build with GNU toolchain)
frank26080115 0:bf7b9fba3924 44 adc_polling_test.c: Main program
frank26080115 0:bf7b9fba3924 45
frank26080115 0:bf7b9fba3924 46 @How to run:
frank26080115 0:bf7b9fba3924 47 Hardware configuration:
frank26080115 0:bf7b9fba3924 48 This example was tested on:
frank26080115 0:bf7b9fba3924 49 Keil MCB1700 with LPC1768 vers.1
frank26080115 0:bf7b9fba3924 50 These jumpers must be configured as following:
frank26080115 0:bf7b9fba3924 51 - VDDIO: ON
frank26080115 0:bf7b9fba3924 52 - VDDREGS: ON
frank26080115 0:bf7b9fba3924 53 - VBUS: ON
frank26080115 0:bf7b9fba3924 54 - AD0.2: ON
frank26080115 0:bf7b9fba3924 55 - Remain jumpers: OFF
frank26080115 0:bf7b9fba3924 56 IAR LPC1768 KickStart vers.A
frank26080115 0:bf7b9fba3924 57 These jumpers must be configured as following:
frank26080115 0:bf7b9fba3924 58 - PWR_SEL: depend on power source
frank26080115 0:bf7b9fba3924 59 - DBG_EN : ON
frank26080115 0:bf7b9fba3924 60 - Remain jumpers: OFF
frank26080115 0:bf7b9fba3924 61
frank26080115 0:bf7b9fba3924 62 Serial display configuration: (e.g: TeraTerm, Hyperterminal, Flash Magic...)
frank26080115 0:bf7b9fba3924 63 – 115200bps
frank26080115 0:bf7b9fba3924 64 – 8 data bit
frank26080115 0:bf7b9fba3924 65 – No parity
frank26080115 0:bf7b9fba3924 66 – 1 stop bit
frank26080115 0:bf7b9fba3924 67 – No flow control
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: Choose correct working board by uncomment correct defined board in adc_polling_test.c file
frank26080115 0:bf7b9fba3924 86 + If using MCB1700 board, uncomment "#define MCB_LPC_1768"
frank26080115 0:bf7b9fba3924 87 + If using IAR-LPC1768-KS board, uncomment "#define MCB_LPC_1768"
frank26080115 0:bf7b9fba3924 88 (Should not uncomment both symbols at the same time)
frank26080115 0:bf7b9fba3924 89 - Step 2: Build example.
frank26080115 0:bf7b9fba3924 90 - Step 3: Burn hex file into board (if run on ROM mode)
frank26080115 0:bf7b9fba3924 91 - Step 4: Connect UART0 on this board to COM port on your computer
frank26080115 0:bf7b9fba3924 92 - Step 5: Configure hardware and serial display as above instruction
frank26080115 0:bf7b9fba3924 93 - Step 6: Run example, turn potetiometer and observe data on serial display
frank26080115 0:bf7b9fba3924 94
frank26080115 0:bf7b9fba3924 95 (Pls see "LPC17xx Example Description" document - chapter "Examples > ADC > Polling"
frank26080115 0:bf7b9fba3924 96 for more details)
frank26080115 0:bf7b9fba3924 97
frank26080115 0:bf7b9fba3924 98 @Tip:
frank26080115 0:bf7b9fba3924 99 - Open \EWARM\*.eww project file to run example on IAR
frank26080115 0:bf7b9fba3924 100 - Open \RVMDK\*.uvproj project file to run example on Keil