Maker Pro
Maker Pro

Microcontroller ... which one ??

K

keith

Jan 1, 1970
0
Ok, I'll include that limitation to the scope of the argument. Things
like the transputer are alos off the table. I think they are too weird to
make a C compiler for. We can limit the discussion to only those machines
for which a reasonable C compiler can be written.

OTOH, I know people who use C compliers for 8051s. I couldn't figure out
how to make it all work. (again, I'm a hardware type and think in RTL and
assembler)
[...]
I think if you make that statement over on comp.arch you'll get a
lot of argument. AIUI (I'm just a hardware type, can't spell 'C')
it is possible to write portable 'C', but it's not trivial.

For simple programs it may be possible to do but you'd better watch
it if you use strings. In some cases it is best to just store one
character per integer.

Are you man enough to take it to C.A? Trust me, you'll get chewed up
and spit out by people who do just this for a living.

Consider it taken there if I did the headers right.

No, not C.A.C. It might work, but I meant C.A. I've seen exactly this
argument before in C.A. I've never followed C.A., since I'm a hardware
type. A Google NG search might keep from upsetting the natives too. ;-)

If we don't get a reaction, one us will have to change the groups line.
I did not because it is way too early to expect any reaction.

I added C.A. Though it may be a stale subject...
But ... but ... are they porting to microcontrollers etc. In the
general purpose computer world things can be quite different. Companies
like Prime and DEC no longer exist so there aren't many non-byte
oriented general purpose computers any more.

They've been doing it for decades. I've heard of very little x86 (32b)
Linux code that isn't an "automatic" recompile to 64b. Of course 64b
isn't new in the *ix world.
I thought you did. Maybe I confused you with some other poster. Sorry
if I did.

's ok. My statement is based on experts' opinions that porting isn't
rocket surgery, but rather attention to detail. Sloppy is bad news and
'C' allows one to be as crude and rude as one is.
Well we will see if this get more hash or just ignored. Fasten your
seat belt, it may be a bumpy ride.

Ok... ;-)
 
K

Ken Smith

Jan 1, 1970
0
Ok, I'll include that limitation to the scope of the argument. Things
like the transputer are alos off the table. I think they are too weird to
make a C compiler for. We can limit the discussion to only those machines
for which a reasonable C compiler can be written.

OTOH, I know people who use C compliers for 8051s. I couldn't figure out
how to make it all work. (again, I'm a hardware type and think in RTL and
assembler)[/QUOTE]


The Keil one works ok. There are several non-standard types built into it
to handle the various situations.

[...]
I added C.A. Though it may be a stale subject...

If we don't get a reaction we'll change the subject line to "free beer" :>

[...]
They've been doing it for decades. I've heard of very little x86 (32b)
Linux code that isn't an "automatic" recompile to 64b. Of course 64b
isn't new in the *ix world.

Yes but try it out on a 36 bit machine some time. 32 bit and 64 bit
machines these days tend to all be byte oriented.
 
R

Ram Meenakshisundaram

Jan 1, 1970
0
[email protected] (Ken Smith) wrote in message >
Ok, I'll include that limitation to the scope of the argument. Things
like the transputer are alos off the table. I think they are too weird to
make a C compiler for. We can limit the discussion to only those machines
for which a reasonable C compiler can be written.

Whats wrong with the transputer? There is definitely a C compiler for
the tranny (several of them)! And some of them are on my website at
http://www.classicmp.org/transputer including GCC....

Cheers,

Ram
 
C

CJunk

Jan 1, 1970
0
~~ VerilogMan ~~ said:
Hello,
I am thinking of buiying this graphic display.
http://www.crystalfontz.com/products/12864cp/index.html#CFAX12864CP1WGHTS
It has a 4 analog I/O for the touch screen, and 18 I/O (the specidications
are on the link "Data Sheet")
I have a VERY hard time trying to figure the best microcontroller to
interface it with a desktop computer on the serial port.
If you could take a look at http://dkc1.digikey.com/CA/PDF/C043/P4.html
(Microcontrollers section) and tell me wich one is the easiest / most
efficient, i would appreciate big time !
Thanks guys!

I am not much help with that. One thing I know. is BECARFULL buying from
Digi Key

I am in australia and they charged me $87US($120AUD) for a Digi Key card
board Box. the parts where around $30US.

I have gotten things from the US in the post for shit loads cheaper airfare
than that. Digi key did end up giving me half the shipping cost back,
after trying to rip me off. so in the end I still paid $45US for a card
board box. legal scammers. Basically they sell card board boxes and throw
in a few electronic components. But that might only be if you live in an
other country. maybe they have a mentality of 'screw people in other
countries besides the USA'

anyway....be carefull
 
M

mark thomas

Jan 1, 1970
0
The artist formerly known as Dave VanHorn wrote:

|
| Both will work with AVR Studio
|


Is that free software?
 
M

Mark Jones

Jan 1, 1970
0
CJunk said:
I am not much help with that. One thing I know. is BECARFULL buying from
Digi Key

I am in australia and they charged me $87US($120AUD) for a Digi Key card
board Box. the parts where around $30US.

I have gotten things from the US in the post for shit loads cheaper airfare
than that. Digi key did end up giving me half the shipping cost back,
after trying to rip me off. so in the end I still paid $45US for a card
board box. legal scammers. Basically they sell card board boxes and throw
in a few electronic components. But that might only be if you live in an
other country. maybe they have a mentality of 'screw people in other
countries besides the USA'

anyway....be carefull

Hi, I'm from the US and I've ordered many things from Digikey and
have never had a problem. Maybe that is an exception, but what exactly
do you mean they "charged you for the box." Are you saying that
Digikey charged $87 for shipping, or "shipping and handling", or
"handling," or "Excise tax," what?

I can't imagine shipping a parcel from the US to Australia would
cost more than $25- unless you ordered a 500-pound item? Where exactly
is the error?

That said, I have heard of some exporting issues with Digikey.
Thanks to our wonderful leadership and legal system, every package
that enters or exits the US is subject to extreme scrutiny. I heard
where someone in Canada was ordering some parts to make hobby kits and
Digikey wrote them a legal letter asking 20 questions about the exact
nature of the hobby kits. Digi-key would not ship until they recieved
a valid, legal response. We can argue about the intent, or if anyone
actually follows another country's laws. But the problem might not be
Digikey's fault per se, they could have simply been following the
current export laws.

Some would say, with all the terrorist activity, that the US might
be taking a defensive posture towards other nations. I wouldn't say
that's so personally. I have always considered Australia a beautiful
and friendly place. So I doubt you or Australia is being singled out
specifically.

So if anything, join with the rest of the world in badmouthing the
US, and understand that unless Digi-key made a gross error, they were
probably following yet another stupid law.

-M
 
C

CJunk

Jan 1, 1970
0
Mark Jones said:
Hi, I'm from the US and I've ordered many things from Digikey and
have never had a problem. Maybe that is an exception, but what exactly
do you mean they "charged you for the box." Are you saying that
Digikey charged $87 for shipping, or "shipping and handling", or
"handling," or "Excise tax," what?

I can't imagine shipping a parcel from the US to Australia would
cost more than $25- unless you ordered a 500-pound item? Where exactly
is the error?

That said, I have heard of some exporting issues with Digikey.
Thanks to our wonderful leadership and legal system, every package
that enters or exits the US is subject to extreme scrutiny. I heard
where someone in Canada was ordering some parts to make hobby kits and
Digikey wrote them a legal letter asking 20 questions about the exact
nature of the hobby kits. Digi-key would not ship until they recieved
a valid, legal response. We can argue about the intent, or if anyone
actually follows another country's laws. But the problem might not be
Digikey's fault per se, they could have simply been following the
current export laws.

Some would say, with all the terrorist activity, that the US might
be taking a defensive posture towards other nations. I wouldn't say
that's so personally. I have always considered Australia a beautiful
and friendly place. So I doubt you or Australia is being singled out
specifically.

So if anything, join with the rest of the world in badmouthing the
US, and understand that unless Digi-key made a gross error, they were
probably following yet another stupid law.

-M

Actually Digi Key threw the questions at me also at first.......that wasnt
much, just following procedure.

the items weighed no more that 9 ounces...but they charged me for 2lbs
which they say is the reason for the extra expense. Of course no body would
actually like paying so much for a cardboard box.. I know I have gotten
things much heavier and much less expensive in shipping. My original post
said 'be carefull' thats all. ... The parts I bought cost around $37.00
us and the box cost $87.00 anyone with half a brain would know to at
least double check with the customer first to see if they understand that
that is what they will be charged for shipping. At least have some sort of
customer relations. anyway...like I said....be carefull to the original
poster. If they live in US, probably no problem
 
M

Mark Jones

Jan 1, 1970
0
CJunk said:
Actually Digi Key threw the questions at me also at first.......that wasnt
much, just following procedure.

the items weighed no more that 9 ounces...but they charged me for 2lbs
which they say is the reason for the extra expense. Of course no body would
actually like paying so much for a cardboard box.. I know I have gotten
things much heavier and much less expensive in shipping. My original post
said 'be carefull' thats all. ... The parts I bought cost around $37.00
us and the box cost $87.00 anyone with half a brain would know to at
least double check with the customer first to see if they understand that
that is what they will be charged for shipping. At least have some sort of
customer relations. anyway...like I said....be carefull to the original
poster. If they live in US, probably no problem


Still, like you say it would be very bad business practice to "hide"
any extra fees like this, if that's really what happened. I'm not sure
why Digi-key or any other company would charge such an outlandish
amount unless it was just some kind of weird error or
misunderstanding. If it happened to me, I'd write the company and ask
them to explain the charges in detail. (Postal mail is considered
"official correspondence" in the US.) It's not like Digi-key has the
lowest prices anyways, they should have free shipping. I just ordered
some one-off parts from Hong Kong and the shipping and handling was
$12 - why on earth would it cost 4x that for an Australian?

Better luck next time, mate.

-M
 
S

~~ SuperMan ~~

Jan 1, 1970
0
CJunk said:
I am not much help with that. One thing I know. is BECARFULL buying from
Digi Key

I am in australia and they charged me $87US($120AUD) for a Digi Key card
board Box. the parts where around $30US.

I have gotten things from the US in the post for shit loads cheaper
airfare
than that. Digi key did end up giving me half the shipping cost back,
after trying to rip me off. so in the end I still paid $45US for a card
board box. legal scammers. Basically they sell card board boxes and throw
in a few electronic components. But that might only be if you live in an
other country. maybe they have a mentality of 'screw people in other
countries besides the USA'

anyway....be carefull


Thanks I did not buy it from them , but from BDmicro.net :)
 
S

Stuart

Jan 1, 1970
0
Basically they sell card board boxes and throw
in a few electronic components. But that might only be if you live in an
other country. maybe they have a mentality of 'screw people in other
countries besides the USA'

Something like that. I was looking for something which I eventually found
in the Digikey catalogue. I read the "small print" about the shipping
charges to the UK and went and found a different way of doing what I
wanted.

--
Stuart Winsor

From is valid but subject to change without notice if it gets spammed.

For Barn dances and folk evenings in the Coventry and Warwickshire area
See: http://www.barndance.org.uk
 
Top