Latest revision as of 11:16, 28 April 2016

In this tutorial we will see how to setup ARM GCC Tool Chain to generate .hex and .bin file for LPC1768.
To start with you will require ARM GCC, winAvr and make utility, download all the software's from following links.

Downloads

ARM GCC
WinAvr
Make Utility
Led Blinking Project

Installing ARM GCC

Once ARM GCC is downloaded install it on your machine. At the End of the installation do select the option Add path to environment variable as shown below.

To test the ARM GCC open the command line and use command arm-none-eabi-gcc --version, which will give the version information as shown below.

Installing WinAvr

Run the winavr installer and follow the steps to set the default configuration.

Installing Make Utility

Finally install the make utility. Make utility will not update the path variables and it needs to be done manually.
Add the Make Utility path to the environment path.

Now type the command make -v to verify the path.
Output of the command should be the version number of make file as shown in below image.

Compilation

We will compile a simple Led Blinking program for LPC1768 using ARM GCC using following procedure
There are different ways to access your files depending on the makefile. We can write makefile as per folder structure.
To keep things simple we will be storing all the files in the same folder as shown in below image. Along with the source files we need core filescore_cm3.c, core_cm3.h, core_cm3.o,system_LPC17xx.c, system_LPC17xx.h, lpc17xx.h and startup_LPC17xx.c .
Finally we need a linker file for setting up the RAM, ROM size and start address.
Download all the files from this link.

After that open command line in your project directory and compile program by using make Clean followed by make all command as shown below.

In case you are getting the below error child 2300(0x14C) died before initialization with status code 0xC0000142, then replace the msys-1.0.dll file from the folder C:\WinAVR-20100110\utils\bin with this msys-1.0.dll file.

Try compiling again and this time it should be successfully compiled.

After successful compilation, .hex and .bin files will be generated in the same project directory.

Linker Setting

Start address of the application can be changed in the linker file as shown in the below image.

In case your are using the .hex with flash magic then the start address should be 0x0000.
For using the .bin file with Secondary bootloader, the start address should be 0x2000.

@@ Line 7: / Line 7: @@
 [https://launchpad.net/gcc-arm-embedded ARM GCC]<br>
 [https://sourceforge.net/projects/winavr/files/ WinAvr]<br>
-[http://gnuwin32.sourceforge.net/packages/make.htm Make Utility]<br><br>
+[http://gnuwin32.sourceforge.net/packages/make.htm Make Utility]<br>
+[https://codeload.github.com/ExploreEmbedded/LedBlinkingWithArmGcc/zip/master Led Blinking Project]<br><br>
 =Installing ARM GCC=
@@ Line 15: / Line 16: @@
-To test the ARM GCC open the command line and use command '''arm-none-eabi-gcc -v''', which will give the version information as shown below.
+To test the ARM GCC open the command line and use command <b>arm-none-eabi-gcc --version</b>, which will give the version information as shown below.
 [[File:ARM GCC 00.PNG]]
 <br><br><br><br>
 =Installing WinAvr=
-Run the winavr installer to Install winavr. Follow the installer steps to set the default configuration.
+Run the winavr installer and follow the steps to set the default configuration.
-<br><br>
+<br><br><br><br>
 =Installing Make Utility=
-Finally install the make utility.<br>
+Finally install the make utility. Make utility will not update the path variables and it needs to be done manually.<br>
-Make utility will not update the path variables and it needs to be done manually.
 Add the Make Utility path to the environment path.
-Now type the command make -v to verify the path. <br>
+Now type the command <b>make -v</b> to verify the path. <br>
 Output of the command should be the version number of make file as shown in below image.
 [[File:ARM GCC 02.PNG]]
-<br>
+<br><br><br>
-=Procedure=
+=Compilation=
-We will compile a simple Led Blinking program for LPC1768 using ARM GCC using following procedure
+We will compile a simple Led Blinking program for LPC1768 using ARM GCC using following procedure<br>
-#There are different ways to access your files depending on the makefile. We can write makefile as per our folder structure and where we are storing different files. As per the makefile we are using make one folder in your local directory where you will store all your source and header files
+There are different ways to access your files depending on the makefile. We can write makefile as per folder structure.<br>
-#Along with the makefile, main and all other library files, keep all following files in this folder
+To keep things simple we will be storing all the files in the same folder as shown in below image.
-           Core Support: core_cm3.c, core_cm3.h, core_cm3.o
+[[File:ARM GCC 03.PNG]]
+Along with the source files we need core files<b>core_cm3.c, core_cm3.h, core_cm3.o,system_LPC17xx.c, system_LPC17xx.h, lpc17xx.h and startup_LPC17xx.c </b>.<br>
+Finally we need a linker file for setting up the RAM, ROM size and start address.<br>
+Download all the files from this [https://codeload.github.com/ExploreEmbedded/LedBlinkingWithArmGcc/zip/master link].
-           Device Support: system_LPC17xx.c, system_LPC17xx.h, lpc17xx.h
-           Startup file: startup_LPC17xx.c
-           Linker Script: LPC17xx.ld
+After that open command line in your project directory and compile program by using <b>make Clean</b> followed by <b>make all</b> command as shown below.<br>
-#You can get all these files from [https://github.com/ExploreEmbedded/Explore-Cortex-M3-LPC1768-DVB-14001/tree/master/Code/ARM_GCC/Led_Blinking_GCC Github]
+[[File:ARM GCC 05.PNG]]<br><br>
-[[File:ARM GCC 03.PNG]]
+In case you are getting the below error <b>child 2300(0x14C) died before initialization with status code 0xC0000142</b>, then replace the <b>msys-1.0.dll</b> file from the folder C:\WinAVR-20100110\utils\bin with this
+[http://www.madwizard.org/download/electronics/msys-1.0-vista64.zip msys-1.0.dll] file.
+[[File:ARM GCC 04.PNG]]<br><br>
-#After that open command line in your local directory and compile program by using <b>make Clean</b> followed by <b>make all</b> command.
+Try compiling again and this time it should be successfully compiled.
 [[File:ARM GCC 05.PNG]]
-[[File:ARM GCC 04.PNG]]
-[[File:ARM GCC 05.PNG]]
+After successful compilation, <b>.hex</b> and <b>.bin</b> files will be generated in the same project directory.
+[[File:ARM GCC 06.PNG]]<br><br>
+=Linker Setting=
+Start address of the application can be changed in the linker file as shown in the below image.
+#In case your are using the <b>.hex</b> with flash magic then the start address should be 0x0000.
+#For using the <b>.bin</b> file with  Secondary bootloader, the start address should be 0x2000.
+[[File:ARM GCC 07.PNG]]
-[[File:ARM GCC 06.PNG]]
-[[File:ARM GCC 07.PNG]]
-#After compilation is over hex and bin file gets generated which can be flashed to our LPC1768 board directly.
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