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Comp.Arch.Embedded is a worldwide Usenet news group that is used to discuss various aspects of Embedded Systems development.

We found 1201 threads matching "avr"

You are looking at page 1 of 31.

The most relevant threads are listed first

Re: Fate of PIC32 If Microchip buys Atmel MPU business.

linnix - 12:43 06-10-08
On Oct 6, 8:51 am, Dan Ash wrote: > Not that anyone can do anything but guess what might happen, but if > Microchip buys Atmel's MPU business, what is the prognosis for the > PIC32. I bought some PIC32 tools and invested time learning the > family, and now it may go away or new variant d...Re: Fate of PIC32 If Microchip buys Atmel MPU business.

Re: Microchip & OnSemi want to buy Atmel?

Jim Granville - 17:20 02-10-08
Wim Lewis wrote: > According to this, Microchip wants to buy Atmel (and split up its various > lines, selling some of them to OnSemi) --- > http://preview.tinyurl.com/4ltdbb > http://blog.makezine.com/archive/2008/10/microchip_along_with_onse.html > > Atmel seems uninterested, t...Re: Microchip & OnSemi want to buy Atmel?

Re: libjpeg + cortex m3

Ulf Samuelsson - 11:57 01-10-08
"michwolo" skrev i meddelandet news:QcydncfiCdMPTH_VnZ2dnUVZ_vjinZ2d@giganews.com... > Hello > Does anyone make cross compile libjpeg to cortex m3 core. I trying but > have a question. arm-elf-gcc or arm-none-ebai-gcc haven't library libc.a. > When I compile whit options export CC=arm...Re: libjpeg + cortex m3

Re: How connect PC Embedded to MDB (Vending Machine)

Rich Webb - 09:19 01-10-08
On Wed, 1 Oct 2008 15:45:14 +1000, "PhilW" wrote: > > "Rich Webb" wrote in message > news:vlj5e4t6lqqprmagrakv9tp44joer11otm@4ax.com... > > On Wed, 1 Oct 2008 09:42:46 +1000, "PhilW" wrote: > > > > > > > > Ok, then you have no choice but to write low level code to fudge the 9b...Re: How connect PC Embedded to MDB (Vending Machine)

Re: How connect PC Embedded to MDB (Vending Machine)

Rich Webb - 21:25 30-09-08
On Wed, 1 Oct 2008 09:42:46 +1000, "PhilW" wrote: > > Ok, then you have no choice but to write low level code to fudge the 9bit > char by using the mark/space parity control. Sorry for jumping in here so far down in the thread, but to throw out another option for the OP: Add a microcon...Re: How connect PC Embedded to MDB (Vending Machine)

Re: Need good quality Audio output through LPC21xx controller

Ulf Samuelsson - 14:00 30-09-08
skrev i meddelandet news:0f148d36-bf58-48e7-9a34-1db113920ee2@v15g2000hsa.googlegroups.com... On Sep 30, 6:56 pm, Vladimir Vassilevsky wrote: > angadd...@gmail.com wrote: > > We are working on a project based on Vehicle tracking system.In one of > > our module we are using audio(...Re: Need good quality Audio output through LPC21xx controller

Atmel

Peter Keller - 01:05 23-09-08
Hello, I've done some PIC development before, with the PIC16F690, PIC18F4321, etc. and I'm thinking about trying out the Atmel processors since I've heard they have a flat memory space (no banks), a software stack, and other things I am interested in. What would be a good entry level atmel mi...Atmel

Re: Network Processor

21:27 14-09-08
On Sep 14, 10:13 am, Frank Buss wrote: > So looks like you are searching a general purpose CPU with embedded > ethernet? Atmel seems to be targeting some category of that with the AVR32; their lower cost eval board has two separate ethernet interfaces and is geared to bridging applicat...Re: Network Processor

AVR tiny13 ADC0 syntax problem

Martin Griffith - 10:34 13-09-08
The ADC0 is shared with the external reset pin, and I'm utterly confused by atmels documentation on now to change it over from rst to ADC function. I don't want to set the no external reset fuse I'm using GCC + studio4. Been to avrfreaks, I found nothing there. Any hints, anyone? marti...AVR tiny13 ADC0 syntax problem

Re: IPv6 vs. IPv4 for embedded devices

Andrew Smallshaw - 10:50 12-09-08
On 2008-09-12, Dirk Zabel wrote: > Hi, > I am just gathering informations on how to equip an existing device with > an ethernet interface in order to enable remote tcp/ip access. Most of > the available tcp/ip stacks as well as chips with built-in tcp/ip > functionality I found so fa...Re: IPv6 vs. IPv4 for embedded devices

Re: New sub-$2.00 60MHz Piccolo C2000 Family from Texas Instruments

Ulf Samuelsson - 00:06 11-09-08
"Bill Giovino" skrev i meddelandet news:g6OdndLUw6W1YVrVnZ2dnUVZ_v_inZ2d@comcast.com... > "MK" wrote... > > > > "Bill Giovino" wrote... > > > Texas Instruments has introduced a new C2000 32-bit microcontroller > > > family: [snip] > Mike, after reading your above comments tod...Re: New sub-$2.00  60MHz Piccolo C2000 Family from Texas Instruments

32-Bit Microcontroller for New Project

00:35 08-09-08
I'm about to embark on a new project that will require a 32-bit microcontroller. I've spent the last month evaluating the merits of the various choices architecturely, and have a pretty good idea of what's out there. It's come down to development environments, and I'd like to get some first-hand...32-Bit Microcontroller for New Project

TO ULF SAMUELSSON: Why "sigh" at uCLinux?

C. J. Clegg - 17:42 06-09-08
Good afternoon, Ulf. Back in November of 2007, in comp.arch.embedded, you wrote: "I see as many ARM9 users as ARM7 users today and neither the CM3 or the uC3k will meet the performance of the ARM9 and neither will run Linux/WinCE. - uCLinux? ...sigh!" I've only started reading about ...TO ULF SAMUELSSON:  Why

Re: Used interrupts on both 68k & PIC, want 68k w/onboard memory & JTAG/BDM

larwe - 11:06 05-09-08
On Sep 5, 10:41=A0am, David Brown wrote: > That may be the impression *you* have got of the ColdFire, but it is > totally at odds with reality. =A0The ColdFire is very much a major 32-bit Mere availability of a wide range of devices is an orthogonal issue to the matter of obsolescence....Re: Used interrupts on both 68k & PIC, want 68k w/onboard memory &  JTAG/BDM

Re: Compiling code

Tim Wescott - 15:41 30-08-08
andersod2 wrote: > The schematic shows a programmer port on there, so you might not need > an eval board to do the programming...may just be able to plug the > cable in and program the code right into it...PIC should have a lot of > different tools you can download for compiling and programm...Re: Compiling code

Re: (New York) Trade ARM9 EVBs for ARM7

linnix - 23:33 28-08-08
On Aug 28, 9:23 am, larwe wrote: > On Aug 28, 3:28 am, "MK" wrote: > > > > question (STR912FW44X6) is at best casually documented and requires a > > > full day of frustration just to get an LED blinking. So much for > > > I can understand that you might not like the board (I h...Re: (New York) Trade ARM9 EVBs for ARM7

ARM9 & Wifi & webcam

Mariusz Koniarz - 06:00 21-08-08
Hello. I just had bought computer board, processor AT91SAM9260, 64MB ram, 512 MB flash & 8Gb SD card (debian,custom build kernel 2.6.23 witch patches). And I have crazy idea..... question: ndiswrapper work well under ARM9? is there any tutorial howto cross-compile&config ndiswrapper f...ARM9 & Wifi & webcam

Can PIC/AVR serve as minimal USB host?

17:46 06-08-08
Is it possible to use either AVR or PIC uC with hardware USB to read blocks from say an optical drive or such ..? (implicit usb host) Doesn't need to be standards compliant. Ugly hacks can be used ;) ...Can PIC/AVR serve as minimal USB host?

PIC/AVR PWM + RS232 simultaneously?

17:36 06-08-08
Are there any sub 10 USD AVR or PIC uC that can do hardware PWM at the same time as hardware RS232 ..? The source of my question is that I suspect that same timer is used both for bitrate generation and for PWM frequency+duty cycle. ...PIC/AVR PWM + RS232 simultaneously?

Re: low pass digital filter on a fixed point microcontroller

14:44 05-08-08
On Aug 6, 5:14 am, Johnny Chang wrote: > So I have a microphones that takes in sound and transmits them back to > me, but I also perform analysis on them to find directionality on an > AVR which uses fixed point arithmetic. Due to the spacing, I've found > that I need to actually cut off...Re: low pass digital filter on a fixed point microcontroller

Re: porting FreeRtos to atmega2560

06:41 04-08-08
Hello, I've had the same problem and after reading your post and ATMega2560's datasheet I changed pxPortInitializeStack() in port.c as follow: usAddress = ( unsigned portLONG ) pxCode; *pxTopOfStack = ( portSTACK_TYPE ) ( usAddress & ( unsigned portLONG ) 0x000000ff ); pxTopOf...Re: porting FreeRtos to atmega2560

PC undefined for WINAVR???

espian - 01:06 03-08-08
I'm in the process of porting a graphics library downloaded from avrfeaks.net from AVR Assembler to avr-as. I'm now getting undefined references to PC. Does GAS not have a PC symbol defined? Can anyone point me to something that I'm doing wrong that would keep PC from not being defined? Can...PC undefined for WINAVR???

Re: New Yahoo Group for Blackfin DSP/MCU

00:48 03-08-08
In article , Vladimir Vassilevsky wrote: > > problems@gmail wrote: > > Vladimir Vassilevsky wrote: > > > > > I've been doing the designs with Blackfin since 2003 and still do, > > > and I can tell you that Blackfin is same as crap as all other MCUs > > > and CPUs. > > > >...Re: New Yahoo Group for Blackfin DSP/MCU

Re: Affordable PCB Layout Software ???

Guy Macon - 10:58 31-07-08
Robert Lacoste wrote: > Give a try to Proteus (www.labcenter.co.uk), we have switched > to it from more expensive packages a couple of years ago and > we are delighted. Especially with the mixed signal VSM simulator > of course but the PCB design suite has all the features we > need...Re: Affordable PCB Layout Software ???

Re: computer-driven fans II

Frank Buss - 22:00 30-07-08
Ron Ford wrote: > It really helped me to see the pictures that come with these listings. > Temperature sensors look like cockroaches with eight legs. The first pin > is on the left as you read the name left to right, and it is symmetric > about the axis that would be the length. > > ...Re: computer-driven fans II

Procyon Library for Atmel AVR MCU - =?ISO-8859-15?Q?I=B2C?= problems

=?ISO-8859-15?Q?R=FCdiger?= Leibrandt - 11:16 30-07-08
Hello! I am new to programming and am struck with the Manual for the Procyon Library for Atmel's ATMega MCUs. It basically provides functions for all the interfaces and functions available on the Atmel MCUs. Problem is as follows: I have a Thermopile array sensor - TPA81 ( http://www.robo...Procyon Library for Atmel AVR MCU - =?ISO-8859-15?Q?I=B2C?= problems

Re: Recommendations for a Quadrature Decoder IC or MicroController

Peter Harrison - 04:58 30-07-08
benn wrote: > I have an atmega16 that interfaces to a motor with a quadrature > encoder sensor. Turns out the frequency of the pulses are much more > than my little 4Mhz can handle (the micro does other things as well!) > As a result, the motor control isn't very accurate, nor does it reac...Re: Recommendations for a Quadrature Decoder IC or MicroController

AVR bootloaders

Martin Griffith - 18:09 28-07-08
Just spent an hour googling I'm trying to find a reasonable BL for the enduser, preferably using USB/FTDI or the silicon labs thingy/equivalent. Just to update their AVR, nothing special, apart from "simple" and probably a lot of Mac users Using GCC Winavr, Ponyprog and atmel Studio4 ...AVR bootloaders

Re: Cheapest USB microcontroller?

Neil - 00:38 23-07-08
Bob wrote: > Does anyone know the lowest cost microcontroller with a USB interface? > > I have done some Googling, and it seems there are quite a few USB > microcontrollers based on either ARM or 8051. Either is okay, but > they are not very cheap. They are all over $3 @ qty 1000. > ...Re: Cheapest USB microcontroller?

Re: computer-driven fans

Ron Ford - 21:40 21-07-08
On Mon, 21 Jul 2008 10:40:51 +0200, Frank Buss posted: > Ron Ford wrote: > > > My question is what is the minumum cost of entry? I saw other numbers that > > were ten times as much. > > I didn't tried it (I have some AVRs, but no time so far to try it), but > looks like this is a ...Re: computer-driven fans

Re: 32-bit Microcontroller for $1.00 -Guy Macon

Jim Granville - 15:45 21-07-08
Guy Macon wrote: > While researching something else, I ran into the > following rather interesting opinions: > Consolidating the MCU market around the ARM architecture > ("It's inevitable. ARM's Cortex-M3 processor core is going > dominate the MCU market.") No sales numbers on t...Re: 32-bit Microcontroller for $1.00                                                                                   -Guy Macon

CompactFlash write speed

A.D. - 13:59 18-07-08
Hi all! I'm designing a high speed datalogger that should store a continuous data stream (about 2MB/s) for about 30 minutes. I'm using a Compact Flash card to store data samples (no FAT, just raw data with a continuous addressing, in order to keep all as fast as possible). The CF I tested is r...CompactFlash write speed

8951 / AVR controller circuits

CCD - 09:51 17-07-08
Hi,check out an AVR interfacing example and 400hzsignal generation using 89c2051 microcontroller, here: http://dharmanitech.blogspot.com ...8951 / AVR controller circuits

Re: Simple C question...entering binary

Walter Banks - 11:06 15-07-08
David Brown wrote: > Walter Banks wrote: > > Most of the embedded people did something similar > > > > #define b00000000 0 > > #define b00000001 1 > > . . . > > > > before 0b.... > > > > was implemented as an extension in most compilers including ours. > > > ...Re: Simple C question...entering binary

AVR, polling INT0 IRQ bit - help?

larwe - 14:27 10-07-08
I'm porting some old code that uses a pin-change interrupt flag as an edge detector. The new target micro is an AVR (ATmega169). I'm having real trouble getting the INT0 logic to work like I think it should. I set DDRD = 0xe5 (INT0 is on bit 1 of port D), PORTD = 0x20, and EICRA = EICRA | ISC...AVR, polling INT0 IRQ bit - help?

Timer ticks occurring much more faster

ratemonotonic - 12:04 09-07-08
Hi All , I am implementing RTC code on an AVR Atmega2560 I have a 32Khz clock crystal to TSOSC1 which is used by timer2 in async mode. I have configured the clock divide to 8 so the clock to the timer is 32768/8 = 4096. It is a 8bit so a interrupt should be generated every 16hz (4096/256). ...Timer ticks occurring much more faster

Re: Can You Guess Which Micro This Is?

donald - 22:20 04-07-08
Scott in SoCal wrote: > I just bought a small embedded device (an iPod adapter for a car > stereo). Being the inquisitive type, I popped open the case to see > what the board inside looked like. I immediately noticed that several > of the chips, including the microcontroller, have had their ...Re: Can You Guess Which Micro This Is?

Re: Faster than TI C2000?

Vladimir Vassilevsky - 00:00 03-07-08
"CC" wrote in message news:N4Wak.10936$cW3.9354@nlpi064.nbdc.sbc.com... > Vladimir Vassilevsky wrote: > > > > Chris Carlen wrote: > > > > > Even though I am able to do what I want with the existing 150MHz > > > TMS320F2812 digital signal controller (DSC), I am always eager to ...Re: Faster than TI C2000?

Re: 24 bit math on 8 bit micros

Ulf Samuelsson - 04:34 02-07-08
aamer wrote: > Hi Friends, > > I was trying to figure out some solution for multiplication of 24bit > data with a 24 bit data on 8 bit microprocessor. > > I got the idea like multiplying first bytes of both data and then the > next bytes taking care of carries and finally put it in to ...Re: 24 bit math on 8 bit micros

Re: Best buy linux comp. CPU ??

MikeWhy - 10:27 01-07-08
"MMJ" wrote in message news:4869e41c$0$56794$edfadb0f@dtext02.news.tele.dk... > Hello all, > > I am doing some preliminariy research on finding a suitable embedded CPU > for our next project on my workplace. The product of the product is in the > 25k-50k range and somewhat costsensi...Re: Best buy linux comp. CPU ??
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