All programs were tested using a breadboard containing a DS80C320,
32K Program memory, 32K Data memory, two 8-segment bar graph
LEDS/drivers, and an 11.0592 MHz crystal. The four 8-segment bar graph
LEDS/drivers were connected to ports 1, and 3 to display their
pins states.
This will sample all 8 A/D-channels by the continous mode.
Each end of conversion will call an interrupt routine,
where the AD-channel is put to Port4[2..0]
and the upper nibble of the result is put to Port4[7..4].
Port 4 is connected to the user LEDS of the FlashCan100P Evaluation-Board
This example provides a description of how to set a communication with the bxCAN
in loopback mode:
- transmit and receive a standard data frame by polling at 100Kbit/S
- transmit and receive an extended data frame with interrupt at 500Kbit/S
- lit some LEDS depending of the program succeed or not
Flex chip implementation
File: UP2FLEX
JTAG jumper settings: down, down, up, up
Input:
Reset - FLEX_PB1
Input n - FLEX_SW switches 1 to 8
Output:
Countdown - two 7-segment LEDS.
Done light - decimal point on Digit1.
Operation:
Setup the binary input n number.
Press the Reset switch.
See the countdown from n down to 0 on the 7-segment LEDS.
Done light lit when program terminates.
Modern, large scale, display systems are
migrating from traditional technologies such as
incandescent, fluorescent and mechanical to
sophisticated products based on LEDS. LED
displays offer power savings and a superior
visual experience in a range of products from
programmable signage to large-scale video
displays and commercial installations.
This tutorial explains how to communicate with IO devices on the DE2 Board and how to deal with interrupts using C and the Altera Monitor Program. Two example programs are given that diplay the state of the toggle switches on the red LEDS. The fi rst program uses the programmed I/O approach and the second program uses interrupts.
This application report discusses the design of non-invasive optical plethysmography
also called as pulsoximeter using the MSP430FG437 Microcontroller (MCU). The
pulsoximeter consists of a peripheral probe combined with the MCU displaying the
oxygen saturation and pulse rate on a LCD glass. The same sensor is used for both
heart-rate detection and pulsoximetering in this application. The probe is placed on a
peripheral point of the body such as a finger tip, ear lobe or the nose. The probe
includes two light emitting diodes (LEDS), one in the visible red spectrum (660nm) and
the other in the infrared spectrum (940nm). The percentage of oxygen in the body is
worked by measuring the intensity from each frequency of light after it transmits
through the body and then calculating the ratio between these two intensities.
Visible light communications (VLC) is the name given to an optical wireless
communication system that carries information by modulating light in the visible spectrum
(400–700 nm) that is principally used for illumination [1–3]. The communications signal
is encoded on top of the illumination light. Interest in VLC has grown rapidly with the
growth of high power light emitting diodes (LEDS) in the visible spectrum. The
motivation to use the illumination light for communication is to save energy by exploiting
the illumination to carry information and, at the same time, to use technology that is
“green” in comparison to radio frequency (RF) technology, while using the existing
infrastructure of the lighting system.
