This document discusses asynchronous serial communication and the operation of a Universal Asynchronous Receiver/Transmitter (UART) chip. It describes how a UART converts bytes to and from a sequence of bits during transmission and reception. It also explains that a UART uses buffers to store received and transmitted data and can generate interrupts when data is received or ready for transmission. The CPU must explicitly read received data and write data for transmission through interrupt service routines to avoid overrun or underrun errors.
The document discusses several problems related to real-time embedded systems:
1) A system with 4 scanning tasks that take 5 ms each and a data handling task that takes 20 ms. The maximum periodicity of the heartbeat timer for no overflow is calculated.
2) If one scanner updates at 50 ms instead of 100 ms and its workload increases by 40%, the new timer period is calculated.
3) A system with 3 tasks of varying priorities and execution times, and the response time is calculated assuming interrupt-driven scheduling.
4) Tasks synchronized with a semaphore, and the execution profile and blocked time are drawn. Processor utilization does not depend on semaphore mode.
Truly Moble Applications: Location, Media Capture, and Social Connectivitybentley79
A talk I gave at an Interaction Design class at the IIT Institute of Design. Talks about unique aspect of mobile computing including location, media capture, and social connectivity. Uses the ZoneTag application as an example of a mobile app that uses all three.
The document advertises Coleman Communications, an alarm and security company that has been in business since 2003. It provides services such as alarm systems, 24-hour monitoring, HD cameras, audio and video, door access, and data cabling to protect homes and secure businesses. Contact information is provided to get in touch.
Jon Dunn, a nobody going nowhere in life, enters a random competition that could send him on a journey to the moon. Billionaire Doug Peabody aims to send the first rocket to the moon in decades and has created a competition for one person to win a seat. Jon and nine other competitors are put through grueling challenges and training for the opportunity to be the passenger on the historic flight.
Este documento describe los virus informáticos, su historia, métodos de propagación, tipos de virus, antivirus y sus características. Explica que los virus son programas dañinos que se replican a sí mismos y que el primer virus atacó una computadora IBM en 1972. También cubre diferentes tipos de antivirus y vacunas, así como formas de detección de virus.
This document provides a summary of various tax-free and taxable bonds available for retail investors in India. It includes details such as the issuer, bond series, coupon rate, tenure, credit rating, last traded price and yield for each bond. The average daily trading volumes and yield to maturity are also specified. The document concludes with notes on credit ratings, listings, face values and other terms for retail investors to be aware of.
This document discusses real-time embedded systems focusing on 8086-based systems. It describes the architecture of 8086 including registers, ALU, and instruction queue. It also covers the bus organization, memory organization, addressing schemes, and interrupt handling in 8086-based embedded systems.
Liverpool John Moores University Presentation at #VVImpact EventVertigo Ventures
Dr Diana Leighton and Lucy Day from Research and Innovation Services, Liverpool John Moores University discuss the types of evidence they are seeing being stored by academics across disciplines to demonstrate their research impact.The team also discuss how they have rolled out the VV-Impact Tracker and engaged academic colleagues.
Korekcija ekspozicije pri profilisanju digitalnih aparataMirjana Marjanović
Ispitivanje mogućnosti korigovanja ekspozicije putem kalibracije i profilisanja digitalnog aparata.
Definisanje korekcija ekspozicije koje daju vidljivi rezultat,
The document discusses synchronization techniques used in real-time operating systems (RTOS), including explicit synchronization through cross stimulation, semaphores, event flags, and issues like priority inversion and deadly embrace. It covers how semaphores work as flags or counting semaphores for synchronization between tasks. Multi-processor support using shared synchronization structures in global memory is also discussed.
The document discusses different methods for component level design:
1. There are three main types of component level design methods: graphical design notation using flowcharts, tabular design notation using decision tables, and program design language using pseudo-code.
2. Flowcharts use sequence, if-then-else, and repetition constructs. Decision tables map conditions to corresponding actions.
3. Pseudo-code describes programming tasks in plain English without strict syntax. It depends on the designer's style.
This document discusses asynchronous serial communication and the operation of a Universal Asynchronous Receiver/Transmitter (UART) chip. It describes how a UART converts bytes to and from a sequence of bits during transmission and reception. It also explains that a UART uses buffers to store received and transmitted data and can generate interrupts when data is received or ready for transmission. The CPU must explicitly read received data and write data for transmission through interrupt service routines to avoid overrun or underrun errors.
The document discusses several problems related to real-time embedded systems:
1) A system with 4 scanning tasks that take 5 ms each and a data handling task that takes 20 ms. The maximum periodicity of the heartbeat timer for no overflow is calculated.
2) If one scanner updates at 50 ms instead of 100 ms and its workload increases by 40%, the new timer period is calculated.
3) A system with 3 tasks of varying priorities and execution times, and the response time is calculated assuming interrupt-driven scheduling.
4) Tasks synchronized with a semaphore, and the execution profile and blocked time are drawn. Processor utilization does not depend on semaphore mode.
Truly Moble Applications: Location, Media Capture, and Social Connectivitybentley79
A talk I gave at an Interaction Design class at the IIT Institute of Design. Talks about unique aspect of mobile computing including location, media capture, and social connectivity. Uses the ZoneTag application as an example of a mobile app that uses all three.
The document advertises Coleman Communications, an alarm and security company that has been in business since 2003. It provides services such as alarm systems, 24-hour monitoring, HD cameras, audio and video, door access, and data cabling to protect homes and secure businesses. Contact information is provided to get in touch.
Jon Dunn, a nobody going nowhere in life, enters a random competition that could send him on a journey to the moon. Billionaire Doug Peabody aims to send the first rocket to the moon in decades and has created a competition for one person to win a seat. Jon and nine other competitors are put through grueling challenges and training for the opportunity to be the passenger on the historic flight.
Este documento describe los virus informáticos, su historia, métodos de propagación, tipos de virus, antivirus y sus características. Explica que los virus son programas dañinos que se replican a sí mismos y que el primer virus atacó una computadora IBM en 1972. También cubre diferentes tipos de antivirus y vacunas, así como formas de detección de virus.
This document provides a summary of various tax-free and taxable bonds available for retail investors in India. It includes details such as the issuer, bond series, coupon rate, tenure, credit rating, last traded price and yield for each bond. The average daily trading volumes and yield to maturity are also specified. The document concludes with notes on credit ratings, listings, face values and other terms for retail investors to be aware of.
This document discusses real-time embedded systems focusing on 8086-based systems. It describes the architecture of 8086 including registers, ALU, and instruction queue. It also covers the bus organization, memory organization, addressing schemes, and interrupt handling in 8086-based embedded systems.
Liverpool John Moores University Presentation at #VVImpact EventVertigo Ventures
Dr Diana Leighton and Lucy Day from Research and Innovation Services, Liverpool John Moores University discuss the types of evidence they are seeing being stored by academics across disciplines to demonstrate their research impact.The team also discuss how they have rolled out the VV-Impact Tracker and engaged academic colleagues.
Korekcija ekspozicije pri profilisanju digitalnih aparataMirjana Marjanović
Ispitivanje mogućnosti korigovanja ekspozicije putem kalibracije i profilisanja digitalnog aparata.
Definisanje korekcija ekspozicije koje daju vidljivi rezultat,
The document discusses synchronization techniques used in real-time operating systems (RTOS), including explicit synchronization through cross stimulation, semaphores, event flags, and issues like priority inversion and deadly embrace. It covers how semaphores work as flags or counting semaphores for synchronization between tasks. Multi-processor support using shared synchronization structures in global memory is also discussed.
The document discusses different methods for component level design:
1. There are three main types of component level design methods: graphical design notation using flowcharts, tabular design notation using decision tables, and program design language using pseudo-code.
2. Flowcharts use sequence, if-then-else, and repetition constructs. Decision tables map conditions to corresponding actions.
3. Pseudo-code describes programming tasks in plain English without strict syntax. It depends on the designer's style.