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

        

Who changed what in which revision?

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frank26080115 0:bf7b9fba3924 1 ******************** (C) COPYRIGHT 2010 NXPSemiconductors *******************
frank26080115 0:bf7b9fba3924 2 * @file SysTick\STCLK\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 SysTick STCLK 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 configure System Tick timer use external clock source STCLK
frank26080115 0:bf7b9fba3924 23 Process:
frank26080115 0:bf7b9fba3924 24 In this example, System Tick timer is clocked by external clock STCLK
frank26080115 0:bf7b9fba3924 25 STCLK supplied by MAT0.0 (P1.28) that generated by timer match channel 0
frank26080115 0:bf7b9fba3924 26 STCLK frequency = 50kHz
frank26080115 0:bf7b9fba3924 27 Setting time interval = 10ms.
frank26080115 0:bf7b9fba3924 28 After each 10ms, System Tick will generate interrupt, interrupt service routine
frank26080115 0:bf7b9fba3924 29 'SysTick_Handler( )' will be invoke and toggle P0.0 pin.
frank26080115 0:bf7b9fba3924 30 Use oscilloscope to observe signal on P0.0 and measure time between falling and rising
frank26080115 0:bf7b9fba3924 31 edge, it would be: 10ms.
frank26080115 0:bf7b9fba3924 32
frank26080115 0:bf7b9fba3924 33 @Directory contents:
frank26080115 0:bf7b9fba3924 34 \EWARM: includes EWARM (IAR) project and configuration files
frank26080115 0:bf7b9fba3924 35 \Keil: includes RVMDK (Keil)project and configuration files
frank26080115 0:bf7b9fba3924 36
frank26080115 0:bf7b9fba3924 37 lpc17xx_libcfg.h: Library configuration file - include needed driver library for this example
frank26080115 0:bf7b9fba3924 38 makefile: Example's makefile (to build with GNU toolchain)
frank26080115 0:bf7b9fba3924 39 systick_stclk.c: Main program
frank26080115 0:bf7b9fba3924 40
frank26080115 0:bf7b9fba3924 41 @How to run:
frank26080115 0:bf7b9fba3924 42 Hardware configuration:
frank26080115 0:bf7b9fba3924 43 This example was tested only on:
frank26080115 0:bf7b9fba3924 44 Keil MCB1700 with LPC1768 vers.1
frank26080115 0:bf7b9fba3924 45 These jumpers must be configured as following:
frank26080115 0:bf7b9fba3924 46 - VDDIO: ON
frank26080115 0:bf7b9fba3924 47 - VDDREGS: ON
frank26080115 0:bf7b9fba3924 48 - VBUS: ON
frank26080115 0:bf7b9fba3924 49 - Remain jumpers: OFF
frank26080115 0:bf7b9fba3924 50 IAR LPC1768 KickStart vers.A
frank26080115 0:bf7b9fba3924 51 These jumpers must be configured as following:
frank26080115 0:bf7b9fba3924 52 - PWR_SEL: depend on power source
frank26080115 0:bf7b9fba3924 53 - DBG_EN : ON
frank26080115 0:bf7b9fba3924 54 - Remain jumpers: OFF
frank26080115 0:bf7b9fba3924 55
frank26080115 0:bf7b9fba3924 56 STCLK connection:
frank26080115 0:bf7b9fba3924 57 - STCLK(P3.26) connects with MAT0.0(P1.28)
frank26080115 0:bf7b9fba3924 58
frank26080115 0:bf7b9fba3924 59
frank26080115 0:bf7b9fba3924 60 Running mode:
frank26080115 0:bf7b9fba3924 61 This example can run on RAM/ROM mode.
frank26080115 0:bf7b9fba3924 62
frank26080115 0:bf7b9fba3924 63 Note: If want to burn hex file to board by using Flash Magic, these jumpers need
frank26080115 0:bf7b9fba3924 64 to be connected:
frank26080115 0:bf7b9fba3924 65 - MCB1700 with LPC1768 ver.1:
frank26080115 0:bf7b9fba3924 66 + RST: ON
frank26080115 0:bf7b9fba3924 67 + ISP: ON
frank26080115 0:bf7b9fba3924 68 - IAR LPC1768 KickStart vers.A:
frank26080115 0:bf7b9fba3924 69 + RST_E: ON
frank26080115 0:bf7b9fba3924 70 + ISP_E: ON
frank26080115 0:bf7b9fba3924 71
frank26080115 0:bf7b9fba3924 72 (Please reference "LPC1000 Software Development Toolchain" - chapter 4 "Creating and working with
frank26080115 0:bf7b9fba3924 73 LPC1000CMSIS project" for more information)
frank26080115 0:bf7b9fba3924 74
frank26080115 0:bf7b9fba3924 75 Step to run:
frank26080115 0:bf7b9fba3924 76 - Step 1: Build example.
frank26080115 0:bf7b9fba3924 77 - Step 2: Burn hex file into board (if run on ROM mode)
frank26080115 0:bf7b9fba3924 78 - Step 3: Configure hardware as above instruction
frank26080115 0:bf7b9fba3924 79 - Step 4: Run example, observe System Tick operation via P0.0 signal
frank26080115 0:bf7b9fba3924 80
frank26080115 0:bf7b9fba3924 81 (Pls see "LPC17xx Example Description" document - chapter "Examples > SysTick > STCLK"
frank26080115 0:bf7b9fba3924 82 for more details)
frank26080115 0:bf7b9fba3924 83
frank26080115 0:bf7b9fba3924 84 @Tip:
frank26080115 0:bf7b9fba3924 85 - Open \EWARM\*.eww project file to run example on IAR
frank26080115 0:bf7b9fba3924 86 - Open \RVMDK\*.uvproj project file to run example on Keil