Bus Definition and 133 Threads

Hello All, I have a circuit that uses a microcontroller to communicate via a three-wire serial line (SPI) to a DDS chip to send and receive commands and status information. My question is that if the DDS IC happens to be on a different board and I want to galvanically isolate them from each...

How far could I kick a bus if I were a Mantis Shrimp? -------------------------------------------------------------------------------- Hello. Strange title I know, but I am trying to come up with an analogy to demonstrate the force generated by the strike of a Mantis Shrimp's claw to...

I've set up RAM on a bus such that one chip takes the lower nibble and another chip takes the upper nibble of a particular data value at a specific address. Both chips are given the same address, but each one contains only half of the data. I want to call this interleaving, but I'm not sure if...

I have read forums that talk against US suburbs and often blame the car for urban sprawl. Now, isn't there a really very simple solution to this ? Just create a well thought out public (or even private companies) transportation system throughout all the US suburbs, maybe using various sized...

I need to take a 16-bit parallel digital input and transfer it to an 8-bit bus. I'm able to capture the 16-bit input by splitting the input and sending one through an ALS373 tri-state latch and the other half through 2 ALS373's, but I'm having problems with the bus interface. I picked a...

Homework Statement http://img98.imageshack.us/img98/7256/circularhn0.png [/URL] Homework Equations None. The Attempt at a Solution The answer key says that the answer is the bus coming to a stop. I think this is the answer because the wheels of the bus are slowing down. Is this the...

Homework Statement A bus runs out of fuel as it approaches a hill. If the hill is 3.54 m high, how fast must the bus be traveling in order to coast just to the top of the hill? Homework Equations The Attempt at a Solution How do we solve this problem?? We aren't given any...

A pedestrian is running at his maximum speed of 6.0 m/s to catch a bus stopped by a traffic light. When he is 25 meters from the bus, the light changes and the bus accelerates uniformly at 1.0 m/s2. Find either {A} how far he has to run to catch the bus or {B} his frustration distance (closest...

Forces ... this was one question I've always thought upon right from the time i have learned abt forces and velocity .. a bus movin with a uniform velocity has zero acceleration ... then how, in such a case does a person get injure or even die when a bus collides with him ?? if the bus is...

I've been looking at system architectures, and it seems almost always, a specific device on the memory bus uses a staggered type of addressing. What I mean by this is that say you have a chip select exclusive to 1 device. The address bus may have lines A[25:0], but instead of matching each...

Homework Statement The acceleration of a bus is given by a (t)= alpha t, where alpha = 1.13 m/s^3 is a constant. Part A) If the bus's velocity at time t_1 = 1.01 s is 4.93 m/s, what is its velocity at time t_2 = 2.15 s? Part B) If the bus's position at time t_1 = 1.01 s is 6.01 m, what...

Homework Statement THe bus is D=10m ahead of the person and accelerates from rest at a=2m/s^2 while the person runs after it at 7m/s. Suppose D is not specified, what maximum distance can the bus be ahead of the person that will allow the person to catch the bus? Homework Equations...

Hello, I'm a little confused on what seems like a simple problem! If you are on a moving bus (at a constant velocity) and you are standing in the aisle then you jump directly upwards, would you move backwards or forwards relative to the bus? Or would you stay in the same place relative to the...

Homework Statement A young child standing in the aisle of a parked bus tosses a ball straight up in the air and let's it drop at her feet. If instead the bus is moving at a constant speed of 30 km/h straight down the street and the child tosses the ball up in the air and let's it drop, where...

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Hey all; I have to write a report on a certain bus (the bus is associated with a uC), based on a technical document. Thing is, we haven't learned much about buses yet. I understand most of it, but there's one thing I don't understand. What is a slave and what is a master? Here's some...

Hello, I'm using an Altera Max II CPLD to interface with a general purpose bus with 60ns bus cycles. This is my first time using programmable logic so go easy on me. Is the required clock for the CPLD usually provided from an external source or can it be generated internally? Is a clock...

I built a computer in my car, mainly for navigation and mp3 purposes. I would like to display song/artist information to the OEM LCD screen. There is a one wire bus in a wiring harness that carries data (track name, artist name, XM channel) from the XM tuner to the LCD in the dash. I'm...

Well I wish Arildno but I have this last one to crack... A town has three bus routes A, B and C. Route A has twice as many buses as each of B and C. Over a perido of time it has been found that, along a certain stretch of road, where the three routes converge, the buses on these routes run...

If I'm seated in the back of a bus that is traveling at the speed of light, and I fire a gun towards the driver...will the bullet ever reach him? Ignoring of course that nothing of mass can reach the speed of light..allegedly.

A bus moving with constant velocity. Passengers inside all jump at once, is that external force or internal force? THx.

Hi, I've got a big probllem: When you are 20m away from your bus it begins accelerating a 3m/s/s (from rest). What constant velocity should you run at to catch the bus. HELP! Please! jason

I was running for the bus when I thought this one up... (Maybe it is not so clever...) Ok. A man is running at his top speed for the bus that is stopped at a stop light. The light turns green and the bus accelerates away from him at an acceleration of a metres per second per second. At what...

Here are some pictures of "our" bus: :biggrin: You like? http://hosted.yourimg.com/04/339/22/PFBus.jpg http://hosted.yourimg.com/04/339/22/PFBus1.jpg http://hosted.yourimg.com/04/339/22/PFBus2.jpg http://hosted.yourimg.com/04/339/22/PFBus3.jpg...

A boy travels by bus. When it goes up a mountain, does the boy inside the bus gain in P.E.? Vice versa, does he loss in P.E. when the bus goes down? :confused:

I have a simple physics problem that I can't correctly solve. I have a 50g toy bus that is sitting still on a ramp. I need to find the Force needed to keep the bus still on the ramp. How do I do this?

there is this problem that i really need help on <b>a bus accelerates at 1.5m/s(squared) from rest for 12s. Itthen travels at constant velocity for 25s, after which it slows to a stop with an acceleration of -1.5m/s(squared). (a) How far does the bus travel? (b) What is its average velocity?

The following question appeared on my son's 6th grade physics test recently: "Why are passengers on a school bus jerked backwards when the bus comes to a sudden stop? Explain using Newton's laws of motion." I was just wondering what a good answer to this might be. Thanks in advance!

a bus travels from El paso, texas to an area near chihuhua mexico in 5.3 h with an average of 73 km/h to the south. what is the bus's total displacement? answer in km ok is velocity the same as displacement? and if it is do i just use v=d*T?

Why one needs to keep ones legs far apart when he has to stand in the aisle of a bumpy riding bus?

ok i have a problem, the bus I am on is on a cliff, with both wheels on the ground, and I am asked which way do i need to walk to so i don't die. well i know that i need to walk towards the danger side of the bus because for instance if you are on a giant skateboard and you walk on it it moves...

Hi all, I'm totally new to this board, I signed up specifically to ask one question and I think one of you people might be able to explain it to me. On the bus the other day my friend and I noticed a fly flying around the bus, the bus was stopped. when the bus started driving again the fly...