What are Vectors

[camerart]

Oy, this conversation makes my head hurt just thinking about the confusion.

Hi G,
Me too.
C

 

[camerart]

You might want to look at: https://www.antenna-theory.com/tutorial/smith/chart.php (Smith Chart)

Hi K,
NANO-VNA
Interesting, that is a bit over my head, but I understand that there is a video, and I'll search for it, thanks.
C

 

[Nigel Goodwin]

Second definition:

"an organism, typically a biting insect or tick, that transmits a disease or parasite from one animal or plant to another."

 

[KeepItSimpleStupid]

vectors have magnitude and direction.

In Interrupt Vector has both magnitude and direction.

Magnitude - priority
Direction - Where to go.

An array is typically called a vector too.

 

[camerart]

Ok, I think I've got the general idea, thanks all.
C.

 

[Ian Rogers]

You need to read this.... A vector is a line, force, thing in a direction, so its used in everything

Vector - Wikipedia

en.wikipedia.org

Piggin millions of them

Vector.. From here to there....

 

[camerart]

You need to read this.... A vector is a line, force, thing in a direction, so its used in everything

Vector - Wikipedia

en.wikipedia.org

Piggin millions of them

Vector.. From here to there....

Hi I,
From here to there with force, is that better?
C

 

[Ian Rogers]

Hi I,
From here to there with force, is that better?
C

No!! Doesn't have to be force.... Vector drawing is just lines.... even curved lines... Vector is from point a to point b with length and angular direction, and some times via's...

That why an interrupt on a micro is a vector... Point a to point b ( b is where the routine is )..

Some here are confused with scalar vectors, which contains scale...

 

[camerart]

No!! Doesn't have to be force.... Vector drawing is just lines.... even curved lines... Vector is from point a to point b with length and angular direction, and some times via's...

That why an interrupt on a micro is a vector... Point a to point b ( b is where the routine is )..

Some here are confused with scalar vectors, which contains scale...

Hi I,
I hope 'G' has got rid of his headache! Mine is going as I find out the answer to my initial question.

Now I see why a micro has a Vector.

As for the confused, this is a confusing subject, but it does kind of make sense as it unfolds.
Thanks, C.

 

[Ian Rogers]

Just notice that vectors are normally named... Interrupt vector... Scalar vector.. etc... best description I can give is, displacement...

 

[camerart]

Just notice that vectors are normally named... Interrupt vector... Scalar vector.. etc... best description I can give is, displacement...

Ok, thanks.

 

[sagor1]

Just think of a vector in a micro as a "pointer" to a fixed address. That is, an interrupt will always trigger to a fixed address to start the interrupt code. These are usually hardwired in the micro.
For example, look at the memory map of the micro. In an example, the 16F887 datasheet, Section 2, "Memory Organization", it shows the "Interrupt Vector" to be at address 0004H. Whenever an interrupt is triggered, the PIC will jump to that address, which usually contains a "jump" instruction to your written interrupt code.
The "Reset Vector" is at 0000H, which is the power on/reset starting address, which also (usually) contains a Jump instruction to the beginning of the code.
Other micros may have several "vectors" depending on functions or other hardware features

 

[camerart]

Just think of a vector in a micro as a "pointer" to a fixed address. That is, an interrupt will always trigger to a fixed address to start the interrupt code. These are usually hardwired in the micro.
For example, look at the memory map of the micro. In an example, the 16F887 datasheet, Section 2, "Memory Organization", it shows the "Interrupt Vector" to be at address 0004H. Whenever an interrupt is triggered, the PIC will jump to that address, which usually contains a "jump" instruction to your written interrupt code.
The "Reset Vector" is at 0000H, which is the power on/reset starting address, which also (usually) contains a Jump instruction to the beginning of the code.
Other micros may have several "vectors" depending on functions or other hardware features

Hi S,
See #7,
Thanks.
C