IDE for ARM 7 board

Tutorial 3

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Outline

• Introduction to the Keil environment• Setup a new project• Debug mode & Observe the registers

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uVision IDE

• C compilers• Assemblers• Real-Time kernels • Integrated Development Environment

(uVision)

• For ARM series and 8051 series

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Set up a new project

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Create a new project

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Choose a directory and give a name for the project

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Choose the device you are going to develop in this project

• NXP > LPC2131

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Create startup file

• Click “Yes” to allow the tool to copy startup code

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Open startup.s

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Modification of startup.s

• Comment out the two region memory• Line segment begin with “;” consider as

comment ; User Initial Stack & Heap AREA |.text|, CODE, READONLY

;IMPORT __use_two_region_memory EXPORT __user_initial_stackheap

__user_initial_stackheap

LDR R0, = Heap_Mem LDR R1, =(Stack_Mem + USR_Stack_Size) LDR R2, = (Heap_Mem + Heap_Size) LDR R3, = Stack_Mem BX LR ENDIF

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Option

• Right click “Target 1” in project window, choose “Option for Target…”

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Memory Layout

• Tick “Use Memory Layout from Target Dialog”

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Create a new source code file

• File > New

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• Enter the assembly code and save as any_filename.s

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Add the source code to the project

• Project > Manage > Component, Environment

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Build the project

• Project > Build target

• Success if no error

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Start Debug mode

• Debug > Start/Stop Debug Session

• Click “OK”– Trial Version

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Debug Mode

Your Assembly Code

Machine running code

Memory content

Register

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Display WindowRegister Memory

Serial (UART)

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Running the program

Run Step one line

Step Over that line

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Next line to run

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Run to cursor line

Right Click

“Run to cursor line”

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Move to a register

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Observe the R15(PC)

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Add R1 and R0

0x11c = 0x118 + 0x04

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Observe the original status of CPSR

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After CMP

“Negative”

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Link Register set by BL

Save the address of next instruction

Last PC + 4 = 124+4

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BX branch to the address in register

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Infinity Loop

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Let’s run some exercises together

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Lab. To Do:

• Create a new project• Copy the code in test1.s to your project• Run the code to observe the change of

register• Record the value of Register PC and N, Z, C, V

(CPSR)

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Lab Demo 1 – Soldering & Circuit Debugging Techniques

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Demonstration Detail

• Soldering• Probing signal using CRO• Tracing signal path using multi-meter

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Marking Scheme

• Finish all the soldering jobs correctly (1.5)• Correct use of components (including correct orientation and

polarity ) (0.5) • The LED power indicator light is on (0.5)• Soldering with proper soldering skills (the amount of volcano shape

and ball shape joints) (0.5)

• Demonstration of circuit debugging skills by CRO and multi meter (1.5)

• Use multi meter to check whether J7 pin1 is connected to pin3 of L293(U6) (0.5)

• Probe the output (Pin3) of LM78T05 to show the voltage level (0.5)• Probe the XTAL2 (CLK) on the board to show the frequency and period

(0.5)

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End of tutorial

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