IDE for ARM 7 board Tutorial 3 IDE of Keil4 V3.a 1.

IDE for ARM 7 board

Tutorial 3

IDE of Keil4 V3.a 1

Outline

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

IDE of Keil4 V3.a 2

uVision IDE

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

(uVision)

• For ARM series and 8051 series

IDE of Keil4 V3.a 3

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…”


Memory Layout

• Tick “Use Memory Layout from Target Dialog”


Create a new source code file

• File > New


• Enter the assembly code and save as any_filename.s


Add the source code to the project

• Project > Manage > Component, Environment


Build the project

• Project > Build target

• Success if no error


Start Debug mode

• Debug > Start/Stop Debug Session

• Click “OK”– Trial Version


Debug Mode

Your Assembly Code

Machine running code

Memory content

Register

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Display WindowRegister Memory

Serial (UART)


Running the program

Run Step one line

Step Over that line


Next line to run


Run to cursor line

Right Click

“Run to cursor line”


Move to a register


Observe the R15(PC)


Add R1 and R0

0x11c = 0x118 + 0x04


Observe the original status of CPSR


After CMP

“Negative”


Link Register set by BL

Save the address of next instruction

Last PC + 4 = 124+4


BX branch to the address in register


Infinity Loop


Let’s run some exercises together


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)


Lab Demo 1 – Soldering & Circuit Debugging Techniques


Demonstration Detail

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


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)


End of tutorial


IDE for ARM 7 board Tutorial 3 IDE of Keil4 V3.a 1.

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