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it was an example .. ok I ll try to make a good example:
let say you have 3 poles and a zero after all the math you get to a degree of -225
and gain of -50 dB at the last W[rad/sec] ( lets say the last one is a pole ( meaning zero-> pole-> pole->pole)
my instructer way to calculate the GM is...
mm ok... my instructor definition is strange... but as one of the people of commented here wrote:
I understand that a PM and GM are as you said but lets say if I go in the way of my Maybe your instructor was making the following assumption: it is a simple control loop where most of the poles...
well he didnot mention Nyquist - he didnot even wrote his name lol...
if you look at the image I sent at a previous post in this thread ..does Nyquist aplies there and does the private case that my instructer said is fine or I should do it by the "general" formula like you wrote ?
because the...
yes he did that .... but its a private case of phase and gain margin ..he did not show the "normal" way ( the one in the link)
I saw answers to questions from tests and they used the "normal" way or guessed/assumed numbers..
+ his way isn't accurate at all
I read what you wrote ( the first...
lets start with what I know about the gain and phase margin:
as my "teacher" told gain margin is :
you take the last zero or pole and messure the distance to zero dB.
phase margin :
you take the last zero or pole and see the difference between his phase and 180 degree.
BUT from what I read...
well I tryed to find differnet programs and the only one is sdcc how can I compile or make an hex file from c source file.
I tryed the command sdcc sourcefile.c. but it didnot work what i am doing wrong ?
the sdcc error says:
e:\>SDCC--debug--code-loc 0x2000--stack-lock 0xc0 --no-pep 145.c
145.c:21:syntax error:token ->'at' ; colum 8
stdout:invalid argument
I think its about the library BUT I add it manualy to the software ( the place I installed it)
its not all of the variables but youll...
well I just installed the demo software it looks great and act great but it still have limits.
about sdcc I think the problem is as you said srizbf its about the extra registers... I add the library of at89c5131 to the software library but still no luck
the problem is at a command for...
for start I had to use a c file from ride 7 or it wont build.. but its fine I had worse problems and the other thing is that it doesnt support my ic but I didnot look at the newer sdcc maby now ..one sec I ll check a newer sdcc.
I am still writing in ride7 but the building I ll do in a...
my main lang isnt english so I have a little problem explaining what I need..
yes I need another compiler..lol
since ride7 checks errors and build ( meaning convert the c file to hex file so I could "burn" it to my IC at89c5131)
I used sdcc but it had errors dealing iwth my IC...+ had...
I cant find the link for download .. I only found the download files with examples
I only need the software that makes c source code to hex file without the limitation.
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