PA 8001 2014 Practical 0 - Revision history

Ceres at 02:41, 9 September 2015

2015-09-09T02:41:46Z

Ceres at 06:35, 27 September 2014

2014-09-27T06:35:06Z

Ceres at 22:56, 23 September 2014

2014-09-23T22:56:35Z

Ceres at 06:33, 14 September 2014

2014-09-14T06:33:38Z

Ceres at 17:53, 13 September 2014

2014-09-13T17:53:44Z

Ceres at 00:50, 7 September 2014

2014-09-07T00:50:33Z

Ceres at 00:17, 7 September 2014

2014-09-07T00:17:58Z

Ceres at 00:13, 7 September 2014

2014-09-07T00:13:12Z

Ceres at 18:02, 4 September 2014

2014-09-04T18:02:45Z

Ceres: Created page with "== Objectives == The objectives of this practical are twofold: * To set up and familiarise yourself with the lab environment (e.g., Raspberri Pi and ARM Cross Compiler) * ..."

2014-09-04T18:02:00Z

Created page with "== Objectives == The objectives of this practical are twofold: * To set up and familiarise yourself with the lab environment (e.g., Raspberri Pi and ARM Cross Compiler) * ..."

New page

== Objectives ==

The objectives of this practical are twofold:

* To set up and familiarise yourself with the lab environment (e.g., Raspberri Pi and ARM Cross Compiler)

* To make sure that you have understood the basic concepts of C programming required for the rest of the course

* To acquire basic familiarity with Raspberri PI bare-metal programming

* To apply basic principles of Test Driven Development

== Instructions ==

You need to submit a single .zip file on blackboard containing the programs for Part 1 and Part 3.
The two parts should be put in two different folders, named Part 1 and Part 3, respectively.
Only submissions before the deadline are considered, unless you ask for a deadline extension before the deadline.
You do not have to wait for an acknowledgment if you ask for an extension.
You can only ask for a deadline extension for one week for at most 2 out of 5 practicals.

The practicals are based on the following two practicals:

* [http://www.valvers.com/embedded-linux/raspberry-pi/step01-bare-metal-programming-in-cpt1 Valvers Bare Metal Programming in C], and
* [http://www.cl.cam.ac.uk/projects/raspberrypi/tutorials/os/ Cambridge Baking Pi]

=== Part 1: C Programming ===

@@ Line 64: / Line 64: @@
 In this part of the lab, you will replace the Linux operating system on  Raspberry Pi with your own program.
 You will implement a kernel that blinks the ACT LED on Raspberry Pi.
 This LED is controlled by GPIO47.
 Thus, to blink the LED first, you need to set GPIO47 as an output (set the 21st bit of the next word form the base address 0x20200000 );

@@ Line 65: / Line 65: @@
 You will implement a kernel that blinks the ACT LED on Raspberry Pi.
 This LED is controlled by GPIO47.
-Thus, to blink the LED first, you need to set GPIO47 as an output (set the 21st bit of the 4th register form the base address 0x20200000 );
+Thus, to blink the LED first, you need to set GPIO47 as an output (set the 21st bit of the next word form the base address 0x20200000 );
 then to turn the LED on and off, you iteratively set and reset the 15th bit of GPIO47 with some delay in between.
-To set GPIO47 output low and high, use an iRegister and map its contents to the 8 and 11 register from the base address 0x20200000, respectively.
+To set GPIO47 output low and high, use an iRegister and map its contents to the 8 and 11 word from the base address 0x20200000, respectively.
 You can start with a simple example code [[media:blinker.zip|blinker.c]] that turn off ACT LED and modify it to a blinker using the above given instructions.

@@ Line 67: / Line 67: @@
 Thus, to blink the LED first, you need to set GPIO47 as an output (set the 21st bit of the 4th register form the base address 0x20200000 );
 then to turn the LED on and off, you iteratively set and reset the 15th bit of GPIO47 with some delay in between.
-To set GPIO47 output low and high, use an iRegister and map its contents to the 8 and 11 bytes from the base address 0x20200000, respectively.
+To set GPIO47 output low and high, use an iRegister and map its contents to the 8 and 11 register from the base address 0x20200000, respectively.
 You can start with a simple example code [[media:blinker.zip|blinker.c]] that turn off ACT LED and modify it to a blinker using the above given instructions.

@@ Line 64: / Line 64: @@
 In this part of the lab, you will replace the Linux operating system on  Raspberry Pi with your own program.
 You will implement a kernel that blinks the ACT LED on Raspberry Pi.
-This LED is controlled by GPIO16.
+This LED is controlled by GPIO47.
-Thus, to blink the LED first, you need to set GPIO16 as an output;
+Thus, to blink the LED first, you need to set GPIO47 as an output (set the 21st bit of the 4th register form the base address 0x20200000 );
-then to turn the LED on and off, you iteratively set and reset the 16th bit of GPIO6 with some delay in between.
+then to turn the LED on and off, you iteratively set and reset the 15th bit of GPIO47 with some delay in between.
-To set GPIO16 output low and high, use an iRegister and map its contents to the 4 bytes from the base address 0x20200000.
+To set GPIO47 output low and high, use an iRegister and map its contents to the 8 and 11 bytes from the base address 0x20200000, respectively.
 You can start with a simple example code [[media:blinker.zip|blinker.c]] that turn off ACT LED and modify it to a blinker using the above given instructions.

← Older revision		Revision as of 17:53, 13 September 2014
Line 1:		Line 1:
−	~~'''Under Preparation; To be finalised befoer Monday'''~~

	== Objectives ==		== Objectives ==

← Older revision		Revision as of 00:17, 7 September 2014
Line 32:		Line 32:
	'''Unpacking and Installing Your Raspberry Pi'''		'''Unpacking and Installing Your Raspberry Pi'''

		+	* Plug in your raspberry pi board to a power supply.
		+	* Choose the Raspbian OS to be installed by checking the box next to it.
		+	* You can choose some settings such for your OS or skip it (you can also set them later).
		+	* Click on install button at top left corner of the window.
		+	* Log in to the linux OS by the following username and password:
		+
		+	username: pi
		+	password: raspberry
		+
		+	* Enter the “startx” command to get started.
		+	* You can now start with writing and compiling a simple C code.
		+	To write your C code you need to use an editor. Leafpad is a simple text editor which you can use or you can install your own editor by transferring the required files to the memory and then installing the editor. Standard Linux editors such as Vi are also available.
		+	You can find the Leafpad editor under Start-> Accessories->Leafpad Open the Leafpad editor and write the following program and then save your file by “.c “ extension.
		+	* To compile your program, start the LXterminal (you can find it on your desktop). Type the following command in the terminal:
		+	gcc /path of your C program/name of your program.c –o /address of the output file/output file

@@ Line 15: / Line 15: @@
 == Instructions ==
-You need to submit a single .zip file on blackboard containing the programs for Part 1 and Part 3.
+You need to submit a single .zip file on blackboard containing the programs for Part 1 and Part 2.
-The two parts should be put in two different folders, named Part 1 and Part 3, respectively.
+The two parts should be put in two different folders, named Part 1 and Part 2, respectively.
 Only submissions before the deadline are considered, unless you ask for a deadline extension before the deadline.
 You do not have to wait for an acknowledgment if you ask for an extension.
@@ Line 29: / Line 29: @@
 === Part 1: C Programming ===

← Older revision		Revision as of 18:02, 4 September 2014
Line 1:		Line 1:
		+	'''Under Preparation; To be finalised befoer Monday'''
		+
	== Objectives ==		== Objectives ==