Frank 26080115
These are the examples provided for [[/users/frank26080115/libraries/LPC1700CMSIS_Lib/]] Note, the entire "program" is not compilable!
Cortex-M3/MPU/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 Cortex-M3\MPU\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 MPU 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 MPU to protect memory region. |
| frank26080115 | 0:bf7b9fba3924 | 23 | Process: |
| frank26080115 | 0:bf7b9fba3924 | 24 | Use MPU to set up 8 memory regions as follows: |
| frank26080115 | 0:bf7b9fba3924 | 25 | Region 0 - Privileged code: 0x00000000 - 0x0007FFFF(512kB) |
| frank26080115 | 0:bf7b9fba3924 | 26 | Region 1 - Privileged data: 0x10000000 - 0x10007FFF(32kB) |
| frank26080115 | 0:bf7b9fba3924 | 27 | Region 2 - APB Peripheral: 0x40000000 - 0x400FFFFF(1MB) |
| frank26080115 | 0:bf7b9fba3924 | 28 | Region 3 - AHB peripheral: 0x50000000 - 0x501FFFFF(2MB) |
| frank26080115 | 0:bf7b9fba3924 | 29 | Region 4 - System control: 0xE0000000 - 0xE00FFFFF(1MB) |
| frank26080115 | 0:bf7b9fba3924 | 30 | Region 5 - On-chip SRAM: 0x2007C000 - 0x2007FFFF(16kB) |
| frank26080115 | 0:bf7b9fba3924 | 31 | Region 6 - Private SRAM: 0x20080000 - 0x20083FFF(16kB) |
| frank26080115 | 0:bf7b9fba3924 | 32 | Region 7 - GPIO peripheral: 0x2009C000 - 0x2009FFFF(16Kb) |
| frank26080115 | 0:bf7b9fba3924 | 33 | Except region 6 can not access, remain regions can access normally. |
| frank26080115 | 0:bf7b9fba3924 | 34 | After setup: |
| frank26080115 | 0:bf7b9fba3924 | 35 | - First, we try to access memory at address: 0x10000000 -> it will allow to access |
| frank26080115 | 0:bf7b9fba3924 | 36 | - Last, we try to access memory at address: 0x20080000 -> it will not allow to access |
| frank26080115 | 0:bf7b9fba3924 | 37 | At the time we access to memory that disallow, Memory Management Handler will be invoked |
| frank26080115 | 0:bf7b9fba3924 | 38 | and we blink LED P1.28 to announce. |
| frank26080115 | 0:bf7b9fba3924 | 39 | |
| frank26080115 | 0:bf7b9fba3924 | 40 | @Directory contents: |
| frank26080115 | 0:bf7b9fba3924 | 41 | \EWARM: includes EWARM (IAR) project and configuration files |
| frank26080115 | 0:bf7b9fba3924 | 42 | \Keil: includes RVMDK (Keil)project and configuration files |
| frank26080115 | 0:bf7b9fba3924 | 43 | |
| frank26080115 | 0:bf7b9fba3924 | 44 | lpc17xx_libcfg.h: Library configuration file - include needed driver library for this example |
| frank26080115 | 0:bf7b9fba3924 | 45 | makefile: Example's makefile (to build with GNU toolchain) |
| frank26080115 | 0:bf7b9fba3924 | 46 | mpu_test.c: Main program |
| frank26080115 | 0:bf7b9fba3924 | 47 | |
| frank26080115 | 0:bf7b9fba3924 | 48 | @How to run: |
| frank26080115 | 0:bf7b9fba3924 | 49 | Hardware configuration: |
| frank26080115 | 0:bf7b9fba3924 | 50 | This example was tested only on: |
| frank26080115 | 0:bf7b9fba3924 | 51 | Keil MCB1700 with LPC1768 vers.1 |
| frank26080115 | 0:bf7b9fba3924 | 52 | These jumpers must be configured as following: |
| frank26080115 | 0:bf7b9fba3924 | 53 | - VDDIO: ON |
| frank26080115 | 0:bf7b9fba3924 | 54 | - VDDREGS: ON |
| frank26080115 | 0:bf7b9fba3924 | 55 | - VBUS: ON |
| frank26080115 | 0:bf7b9fba3924 | 56 | - Remain jumpers: OFF |
| frank26080115 | 0:bf7b9fba3924 | 57 | IAR LPC1768 KickStart vers.A |
| frank26080115 | 0:bf7b9fba3924 | 58 | These jumpers must be configured as following: |
| frank26080115 | 0:bf7b9fba3924 | 59 | - PWR_SEL: depend on power source |
| frank26080115 | 0:bf7b9fba3924 | 60 | - DBG_EN : ON |
| frank26080115 | 0:bf7b9fba3924 | 61 | - Remain jumpers: OFF |
| frank26080115 | 0:bf7b9fba3924 | 62 | |
| frank26080115 | 0:bf7b9fba3924 | 63 | Serial display configuration:(e.g: TeraTerm, Hyperterminal, Flash Magic...) |
| frank26080115 | 0:bf7b9fba3924 | 64 | 115200bps |
| frank26080115 | 0:bf7b9fba3924 | 65 | 8 data bit |
| frank26080115 | 0:bf7b9fba3924 | 66 | No parity |
| frank26080115 | 0:bf7b9fba3924 | 67 | 1 stop bit |
| frank26080115 | 0:bf7b9fba3924 | 68 | No flow control |
| frank26080115 | 0:bf7b9fba3924 | 69 | |
| frank26080115 | 0:bf7b9fba3924 | 70 | Running mode: |
| frank26080115 | 0:bf7b9fba3924 | 71 | This example can run on RAM/ROM mode. |
| frank26080115 | 0:bf7b9fba3924 | 72 | |
| frank26080115 | 0:bf7b9fba3924 | 73 | Note: If want to burn hex file to board by using Flash Magic, these jumpers need |
| frank26080115 | 0:bf7b9fba3924 | 74 | to be connected: |
| frank26080115 | 0:bf7b9fba3924 | 75 | - MCB1700 with LPC1768 ver.1: |
| frank26080115 | 0:bf7b9fba3924 | 76 | + RST: ON |
| frank26080115 | 0:bf7b9fba3924 | 77 | + ISP: ON |
| frank26080115 | 0:bf7b9fba3924 | 78 | - IAR LPC1768 KickStart vers.A: |
| frank26080115 | 0:bf7b9fba3924 | 79 | + RST_E: ON |
| frank26080115 | 0:bf7b9fba3924 | 80 | + ISP_E: ON |
| frank26080115 | 0:bf7b9fba3924 | 81 | |
| frank26080115 | 0:bf7b9fba3924 | 82 | (Please reference "LPC1000 Software Development Toolchain" - chapter 4 "Creating and working with |
| frank26080115 | 0:bf7b9fba3924 | 83 | LPC1000CMSIS project" for more information) |
| frank26080115 | 0:bf7b9fba3924 | 84 | |
| frank26080115 | 0:bf7b9fba3924 | 85 | Step to run: |
| frank26080115 | 0:bf7b9fba3924 | 86 | - Step 1: Build example. |
| frank26080115 | 0:bf7b9fba3924 | 87 | - Step 2: Burn hex file into board (if run on ROM mode) |
| frank26080115 | 0:bf7b9fba3924 | 88 | - Step 3: Connect UART0 on this board to COM port on your computer |
| frank26080115 | 0:bf7b9fba3924 | 89 | - Step 4: Configure hardware and serial display as above instruction |
| frank26080115 | 0:bf7b9fba3924 | 90 | - Step 5: Run example |
| frank26080115 | 0:bf7b9fba3924 | 91 | - Press '1' to access memory in region 1 |
| frank26080115 | 0:bf7b9fba3924 | 92 | - Press '2' to access memory in region 6 |
| frank26080115 | 0:bf7b9fba3924 | 93 | See LED P1.28 blink |
| frank26080115 | 0:bf7b9fba3924 | 94 | |
| frank26080115 | 0:bf7b9fba3924 | 95 | (Pls see "LPC17xx Example Description" document - chapter "Examples > Cortex-M3 > MPU" |
| 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 |