21-12-2012, 04:55 PM
MASTER IN SENSOR SYSTEMS TECHNOLOGY
[attachment=44790]
ABSTRACT
The purpose of this project is to implement traffic light control
system firmware in the ARM7 (ATMELSAM7S) board. The logic is
executed finite state machine, and programmed according to that. Here
we make four switches which controls two sets of LED .Each set has got
six LED. Those are red, green & yellow. So here each switch acts as a
car. The coding was done in ARM Assembly language.
For those on a limited budget, use of open source tools to develop
embedded software for the Atmel AT91SAM7S family of
microcontrollers may be a very attractive approach. Professional
software development packages from Keil, IAR, Rowley Associates, etc
are convenient, easy to install, well-supported and fairly efficient. The
problem is their price ($900 US and up) which is a roadblock for the
student, hobbyist, or engineer with limited funding. Using free open
source tools currently available on the web, a very acceptable cross
development package can be assembled in an hour’s work. It does
require a high-speed internet connection and a bit of patience.
Introduction:
Car manufacturers and state authorities alike have tried for years
to boost vehicle efficiency and improve safety of both passengers and
pedestrians. While the automotive industry has evolved at a very fast
pace in the last couple of years and new safety and green systems
emerged, there’s another way to work on these two particular areas:
traffic lights.
We’ve all heard of traffic lights and chances are that most drivers
hate them from the bottom of their souls. They block you from
reaching the destination faster, they make you burn more gas and
sometimes, they force you to wait for several minutes in a huge traffic
jam at a larger intersection. But beyond these terrible scenarios, we
must accept that traffic lights are playing a key role, not only for the
overall safety of traffic, but also for pedestrians who wish to cross a
road without putting their lives at risk.
Olimex ARM-USB-OCD-H:
It includes a couple of unique features such as an extra serial port
(might come in handy if you have a laptop with no serial port) and a DC
power supply that can be strapped for 5V, 9V or 12V operation. This DC
supply includes a cable that can power your board, if needed. If you
want to use the Olimex ARM-USB-OCD JTAG device to program on chip
flash memory, it would be better to use a wall-wart external power
supply for the target board since the ARM-USB-OCD device doesn’t
supply enough power for the Atmel AT91SAM7S256-EK board during
flash programming operations. [1]
ARM Software Cross Development System
While there are a few diehards out there who still write their C
programs with Windows Notepad and use a command prompt window
to enter the GNU compile and link commands by hand, this is utter
foolishness when complete Integrated Development Environments
such as Eclipse are available. Eclipse allows entering and modifying your
C programs using a modern software editor. It also provides single-click
build and debug operations.
[attachment=44790]
ABSTRACT
The purpose of this project is to implement traffic light control
system firmware in the ARM7 (ATMELSAM7S) board. The logic is
executed finite state machine, and programmed according to that. Here
we make four switches which controls two sets of LED .Each set has got
six LED. Those are red, green & yellow. So here each switch acts as a
car. The coding was done in ARM Assembly language.
For those on a limited budget, use of open source tools to develop
embedded software for the Atmel AT91SAM7S family of
microcontrollers may be a very attractive approach. Professional
software development packages from Keil, IAR, Rowley Associates, etc
are convenient, easy to install, well-supported and fairly efficient. The
problem is their price ($900 US and up) which is a roadblock for the
student, hobbyist, or engineer with limited funding. Using free open
source tools currently available on the web, a very acceptable cross
development package can be assembled in an hour’s work. It does
require a high-speed internet connection and a bit of patience.
Introduction:
Car manufacturers and state authorities alike have tried for years
to boost vehicle efficiency and improve safety of both passengers and
pedestrians. While the automotive industry has evolved at a very fast
pace in the last couple of years and new safety and green systems
emerged, there’s another way to work on these two particular areas:
traffic lights.
We’ve all heard of traffic lights and chances are that most drivers
hate them from the bottom of their souls. They block you from
reaching the destination faster, they make you burn more gas and
sometimes, they force you to wait for several minutes in a huge traffic
jam at a larger intersection. But beyond these terrible scenarios, we
must accept that traffic lights are playing a key role, not only for the
overall safety of traffic, but also for pedestrians who wish to cross a
road without putting their lives at risk.
Olimex ARM-USB-OCD-H:
It includes a couple of unique features such as an extra serial port
(might come in handy if you have a laptop with no serial port) and a DC
power supply that can be strapped for 5V, 9V or 12V operation. This DC
supply includes a cable that can power your board, if needed. If you
want to use the Olimex ARM-USB-OCD JTAG device to program on chip
flash memory, it would be better to use a wall-wart external power
supply for the target board since the ARM-USB-OCD device doesn’t
supply enough power for the Atmel AT91SAM7S256-EK board during
flash programming operations. [1]
ARM Software Cross Development System
While there are a few diehards out there who still write their C
programs with Windows Notepad and use a command prompt window
to enter the GNU compile and link commands by hand, this is utter
foolishness when complete Integrated Development Environments
such as Eclipse are available. Eclipse allows entering and modifying your
C programs using a modern software editor. It also provides single-click
build and debug operations.