AVR Freaks

AVR GCC forum :: RE: Simple error message

Author: david.prentice
Subject: RE: Simple error message
Posted: Sep 02, 2010 - 03:37 PM (GMT 1)
Topic Replies: 2

If you are writing a C++ module, you need to compile with a C++ compiler.

I think you will need to use a .cpp extension or .C extension. A C++ masochist will be able to give a definitive answer.

David.

AVR forum :: RE: Olimex AVR-ISP500, AVR-H128

Author: bobgardner
Subject: RE: Olimex AVR-ISP500, AVR-H128
Posted: Sep 02, 2010 - 03:36 PM (GMT 1)
Topic Replies: 2

I cant believe there are at least 2 avrfreaks in Lund Sweden, and none in central Florida, land of alligators, snakes and rednecks.
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Imagecraft compiler user

AVR Tutorials :: RE: [TUT] [C] Using the EEPROM memory in AVR-GCC

Author: solanki
Posted: Sep 02, 2010 - 03:24 PM (GMT 1)
Topic Replies: 177

IS there any way I write a block of word instead of block of bytes.

following is the code to write a block of bytes.

Quote:

void eeprom_write_block (void *pointer_eeprom, const void *pointer_ram, size_t n)

General Electronics :: Flickering in dimmers

Author: thakkarhimanshu
Subject: Flickering in dimmers
Posted: Sep 02, 2010 - 03:24 PM (GMT 1)
Topic Replies: 0

One of the product of my company is dimmers. The dimmers are designed to carry load in the form of bulbs(the incandescent light bulb that are connected directly to the supply) or electronic transformers (this has output of 12VAC/50W and yes 12V bulbs are connected to them). The dimmers work perfectly at 50Hz/220VAC. The same dimmers were supplied to a site that has 60Hz/220VAC supply. (The reports that I have state that the site supply was raised from 110VAC to 220VAC. This was done using transformer).

There were bulbs and electronic transformer connected to the dimmers. The bulbs were steady in their intensity but lamps connected to electronic transformer flickered. The flickering was not all the time but only observed sometimes. The same electronic transformer when connected directly to the supply are steady. From the latest reports we received now even the incandescent light bulb are flickering.

My company has asked me to look into the matter. Unfortunately the person who designed the dimmer is not immediately available. I am not a hardware designer but work on programming. My understanding on the design level is limited. The problem I am facing is that I do not even know where to start. I am however writing some explanation on dimmer.

The dimmer has two channels both are identical. The power is controlled using Triac. There is a zero crossing detector in the dimmer which gives reference to generate pulses according to intensity required thereby varying the firing angle of the triac.

I am sorry if I have been too abstract in posting my query. I am not too sure even what I should ask. Any input on this matter is highly appreciated.

Off-topic forum :: RE: Execute shell commands on server from iPhone

Author: AgwanII
Subject: RE: Re: RE: Re: RE: Execute shell commands on server from iP
Posted: Sep 02, 2010 - 03:09 PM (GMT 1)
Topic Replies: 55

I believe I did try both. But since you say one of them does work, I must not have tried that anyway.

AVR forum :: RE: I love 8-bit AVR but need more power!

Author: kk6gm
Subject: Re: RE: Re: RE: Re: RE: I love 8-bit AVR but need more power
Posted: Sep 02, 2010 - 03:09 PM (GMT 1)
Topic Replies: 19

leon_heller wrote:

I much prefer Rowley CrossWorks - they wanted to bid for the LPCXpresso project but NXP weren't interested.

I'm also a fan of CrossWorks. The included tasking library is a very nice bonus too.

Off-topic forum :: RE: A discussion about "iPhone 4"

Author: AgwanII
Subject: RE: A discussion about "iPhone 4"
Posted: Sep 02, 2010 - 02:54 PM (GMT 1)
Topic Replies: 6

Mm, it's so stupid of their developers to try to jam too much into the hardware. The hardware it self it OK, just that they try to do too heavy stuff with it, and thereby gets nothing useful at all.

AVR forum :: RE: searching for a letter keypad

Author: valusoft
Posted: Sep 02, 2010 - 02:50 PM (GMT 1)
Topic Replies: 5

abohmaid wrote:

I do not mean any thing ,I just trying to explain my case as mr/jim said before..

If you read and understand the thread that I provided, you will see that the method to use is the same as used on mobile/cell phones for creating a SMS message where 3 letters of our alphabet (I do not know if you have Arabic character telephones) are printed next to each number key. For example on the number 1 key we have "abc". One press of "1" would select "a", two quick presses would select "b", etc.

So to enter "abu jamal" you would use the 1, 8, #, 5 and 6 keys with suitable time pauses to select the correct letter under each number.

Is that clear?

Maasalamma,

Ross
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Ross McKenzie
ValuSoft
Melbourne Australia

AVR32 Linux Forum :: Sleep without signal break

Author: carsto
Subject: Sleep without signal break
Posted: Sep 02, 2010 - 02:39 PM (GMT 1)
Topic Replies: 0

Hello,

I am using serial communication, my problem I need a sleep function which will not return if a signal arrives.

usleep and sleep are both arrive if a character is received.

I need a sleep function without looking at signals.

best regards
Carsto

General Electronics :: RE: Solid State Relay - options

Author: valusoft
Subject: Re: RE: Solid State Relay - options
Posted: Sep 02, 2010 - 02:27 PM (GMT 1)
Topic Replies: 6

lamik wrote:

Thanks. I will check the voltages. Actually, it is a cheapo camera from HK - $20.

Do you have a url link to the camera?

Cheers,

Ross
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Ross McKenzie
ValuSoft
Melbourne Australia

General Electronics :: RE: Detect Shape made by dots in a square grid

Author: valusoft
Posted: Sep 02, 2010 - 02:22 PM (GMT 1)
Topic Replies: 7

mckeemj wrote:

... How this is done is really going to depend on the types of shapes that are going to be represented.

Some questions that need to be answered are what do those shapes look like? are they always convex?

Martin Jay McKee

Hi Martin. Whilst you may well be correct, my reading of the OP's project description started with a simpler interpretation; another version of the line follower task except that (perhaps) circular dots have been placed on a grid in such a way that an eye looking down from "on high" might "connect the dots" (an old child's puzzle) and recognise a smiling face or a flower. The robot is to traverse the entire grid filling a pictorial matrix (eg, a graphical lcd) with dots.

My $0.02 ... and worth every penny.

Cheers,

Ross
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Ross McKenzie
ValuSoft
Melbourne Australia

AVRfreaks.net :: RE: Freaks map

Author: valusoft
Subject: Re: Freaks map
Posted: Sep 02, 2010 - 02:04 PM (GMT 1)
Topic Replies: 2

therat wrote:

I was hoping to find out if there where any freaks in my neighbourhood (Canberra).

There is a direct correlation between their influx and the sitting days of parliament. modules/PNphpBB2/images/smiles/icon_lol.gif" alt="Laughing" border="0" />
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Ross McKenzie
ValuSoft
Melbourne Australia

AVR forum :: RE: BitCloud ED reconnect problem

Author: alexru
Subject: Re: RE: Re: RE: Re: BitCloud ED reconnect problem
Posted: Sep 02, 2010 - 02:02 PM (GMT 1)
Topic Replies: 5

slumhest wrote:

Made the changes, but I still get confirmInfo->status 0xC3.

Are you sure that you made those modifications on coordinator? I see no other reason for it not to work.

Off-topic forum :: RE: C code quiz 1

Author: EW
Subject: RE: Re: RE: Re: RE: C code quiz 1
Posted: Sep 02, 2010 - 01:44 PM (GMT 1)
Topic Replies: 26

Yawn.

Wait until you get into 2 dimensional arrays of structures that contain pointers to functions. You know... for implementing menus.

Off-topic forum :: RE: AVRUSB + LUFA = hacked PS3 and sold out AVRUSB kits

Author: abcminiuser
Subject: RE: Re: RE: Re: RE: Re: AVRUSB + LUFA = hacked PS3 and sold
Posted: Sep 02, 2010 - 01:42 PM (GMT 1)
Topic Replies: 16

Yeah, my apologies for making the world-wide USB AVR shortage just a "tad" worse - I was talking about the USBKEY to a friend, and all of two hours later stocks of everything evaporated. One jerk Australian company (no affiliation) is now selling their Teensy stock for $79 EACH - many times the RRP.

I took a look at the code and it does indeed use LUFA in an ingenious manner. I'd help clean up the code and all that, but I daresay Sony will just patch it out in a few days.

The original open source firmware called PSGroove has the "backup manager" disabled, allowing it to be used for homebrew only and not piracy. Someone's already hacked it back in, however, in a fork of the project.

- Dean modules/PNphpBB2/images/smiles/icon_twisted.gif" alt="Twisted Evil" border="0" />
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