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AVR in Comp.Arch.Embedded

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

We found 493 threads matching "AVR"

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AVR compilers
0

Started by mc 8 years ago
OK, another deep theological question... What do people think of each of these...? CodeVision C for AVR ImageCraft C for AVR IAR C for AVR gcc for AVR BASCOM for AVR Any of them notoriously good or notoriously bad? Integration with AVR Studio and STK500 are desirable. ...AVR compilers

ISA and copyright/patent/trademark
-1

Antti - 2009-04-15 15:59:00
Hi I am preparing some own processor (in flash FPGA) that is mostly AVR classic ISA compatible, so I wonder what issues may come up, if any. ISA can no be patented, so there should be no big issues. But then AVR(R) is registered trademark, so if i make something compatible to AVR and if i s...ISA and copyright/patent/trademark

AVR-GCC options
-3

rvarshney - 2009-03-22 21:41:00
Hello, I was hoping to know if there is a way to intermix source code with the output of "avr-gcc -S" I know that it is possible to do so with "avr-objdump -S", but I was wondering if there is a way to get the same functionality with "avr-gcc -S" Thanks! ...AVR-GCC options

WinAVR for ATtiny2313 ?
0

Started by Bugmaster 8 years ago
Hi all, I'm a newbie to AVR development. I was looking into using C for some of my high-level logic, but couldn't figure out a reliable way to do it on Windows. The latest version of WinAVR (http://winavr.sourceforge.net/) does not support ATtiny2313 (which is what I'm using), because their a...WinAVR for ATtiny2313 ?

AVR MCUs and Eclipse
0

Ivan Wagner - 2008-03-31 03:16:00
Hi to all, I'm really interested in developing my application on AVR MCUs using through Eclipse using the avr-eclipse plug-in which can be downloaded at the following link: http://sourceforge.net/projects/avr-eclipse I've seen a screen-shot (http://firefighters.cs.upb.de/images/7/78/ AVRDUD...AVR MCUs and Eclipse

Ethernet on AVR
+1

Started by Meindert Sprang 9 years ago
Just a quick question: what would be a good choice of ehternet chip to attach to an AVR? My first thought is a Crystal, but maybe there are better option? My AVr of choice would be a ATmega162. Meindert ...Ethernet on AVR

AVR studio4 problem
0

Martin Griffith - 2008-01-28 15:10:00
I'm trying to move Studio4/GCC/winavr from my aging laptop to my desk PC I downloaded the latest versions for the PC but get the following error Loaded plugin STK500 Loaded plugin AVR GCC Loaded partfile: C:\Program Files\Atmel\AVR Tools\PartDescriptionFiles\ATmega128 AVR Simulator: Please...AVR studio4 problem

avr-gcc : .bss always set variables to zero ?
0

Started by kunil 8 years ago
Here's FAQ that listed in AVR-libc's manual : * Shouldn't I initialize all my variables? ....for the AVR target, in general, all integer-type variables are set to 0, all pointers to a NULL pointer, and all floating-point variables to 0.0. I'm trying small program : #include int mai...avr-gcc : .bss always set variables to zero ?

How do I start with AVR microcontroller??
0

Manish - 2006-10-27 00:00:00
Hello everyone, I am new to avr microcontroller.Which is good online tutorial for AVR micro ...How do I start with AVR microcontroller??

AVR with Parallel Flash Memory
+1

NMMX - 2010-05-26 13:18:00
Hi all, I have a few questions on how to go about generate the correct waveforms for reading/writing from/to an external flash memory using an AVR microcontroller. The AVR has enough I/O to allow direct connection between address, data and control lines. I don't have to worry about counters/la...AVR with Parallel Flash Memory

Gcc Tools for AVR Studio
0

Started by Klaus Hummel 9 years ago
There is a new gcc distribution on the Atmel Website for avr controller. http://www.atmel.com/dyn/general/tech_doc.asp?doc_id=9772 It contains avr-gcc 3.4.0 with Dwarf debug format support and an Elf/Dwarf parser component for AVR Studio. Has anybody experience with this distribution ? ...Gcc Tools for AVR Studio

AVR or 8051
0

Started by Yukuan 8 years ago
If anyone can tell me when to use AVR and when to 8051. We all have known that AVR has fine instruction set and is much faster than 8051. During product developing, what make you choose 8051? Any comment is appreciated. Thanks ...AVR or 8051

PIC vs AVR vs ARM
-1

Miem - 2006-10-02 04:28:00
Hi All, As an amateur embedded circuit player, I have used couple of AVR and PIC microcontrollers in the past. In these days it is not to hard to find small, ARM based ready to use embedded boards under $100. They seems to have faster clock speed then most of the AVR and PIC boards. Can...PIC vs AVR vs ARM

[Q] avr-gcc and calling convention
0

Started by 42Bastian Schick 8 years ago
Hi I am starting to port our RTOS to AVR using avr-gcc ( later surely IAR, ImageCraft). Currently I am confused about the calling convention. The AVR-lib document says: r2-r17 are callee saved r18-27 are caller saved r25-r8 are the parameters left to right Does this mean, I must pres...[Q] avr-gcc and calling convention

AVR to ARM
0

Meindert Sprang - 2007-10-01 06:28:00
Hi All, I am about to port an application from an AVR to an ARM. Most of the code is written in C but one particular driver is written in AVR assembler. I was wondering if a converter exists to translate AVR assembler to ARM assembler code. I find it easier to get to grips with new a new assem...AVR to ARM

AVR s/w emulator ?
0

Started by A. Drosos 8 years ago
Hi, Is it possible to use the AVR s/w emulator on AVRStudio running on a PC and somehow get external control signals (serial or parallel port) that would correspond to signals produced by an actual AVR? The reason I'm asking is that I have to design a small scale electromechanical elevato...AVR s/w emulator ?

Basic AVR questions
+1

Started by mc 8 years ago
(1) Do all AVRs have the same instruction set? (Except obviously for instructions that refer to things that are not there.) (2) How easy is it to make an AVR programmer that is compatible with AVR Studio? (3) Would such a programmer be essentially universal (for AVRs)? Or do they have ...Basic AVR questions

AVR bootloaders
0

Martin Griffith - 2008-07-28 18:09:00
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 atme...AVR bootloaders

Porting JAM-Player from 8051 to AVR?
0

Started by Patrik 9 years ago
hi, 1st did anyone do the portation? 2nd Does anyone knows a document where portation from 8051 (Keil C++) to AVR (GCC) is described in general? 3rd Can anyone tell me how I port a UART Interface from 8051 to AVR in C? Thanx, Patrik -- Using M2, Opera's revolutionary e-mail client: h...Porting JAM-Player from 8051 to AVR?

AVR Studio 4.08 broken?
0

Started by Lewin A.R.W. Edwards 9 years ago
I just moved my AVR development onto a new machine, and downloaded the latest AVR Studio (4.08). It seems like it's impossible to build with this version. If I hit F7, the output window shows "Building project...", there is a Windows error chime, and nothing else happens. I have to run...AVR Studio 4.08 broken?

AVR or PIC for a beginner
0

[Frank] - 2007-02-19 12:54:00
I'm new to microcontrollers world. I have only a little experience with Z80 based systems. I saw some Atmel AVR's sources and I loved it: very clear. Someone suggest me to start with PIC, someone else with AVR. The net is full of doc/projects about PIC and give me a bit of confusione; A...AVR or PIC for a beginner

avr butterfly and jtag
0

Started by Mark Andrew 9 years ago
I have bought an AVR Butterfly as my first step in exploring the wonderful world of microcontrollers, and have worked out how to compile and load programs into it using WinAVR, AVR Studio and the RS232 connection. And all for € 30! Now I want to try my hand at on board debugging. Do I just bu...avr butterfly and jtag

AVR, Max OS X: Compiling avr-libc fails ...
-3

Frank Goenninger DG1SBG - 2006-05-25 17:25:00
Hi all: I tried to compile avr-libc on my Mac Intel with OS X 10.4.6 using the instructions as detailed in http://www.nongnu.org/avr-libc/user-manual/install_tools.html Unfortunately the compile fails: avr-gcc -I../../../../common -I../../../../include -x assembler-with-cpp -Wa,-gstabs...AVR, Max OS X: Compiling avr-libc fails ...

AVR studio Watch window giving unbelievable result.
0

Started by Denis Gleeson 9 years ago
Hello all Im new to using Atmel devices and AVR studio. We have built a project with avr-gcc and Im using AVR studio version 4.08 to debug. the device is the ATMEGA162. My problem is that we have an array of structures declared in C and when I place a watch in the watch window the SRAM add...AVR studio Watch window giving unbelievable result.

Analog voltage to MIDI converter with AVR
0

Started by Unknown 8 years ago
The following link (http://tomscarff.tripod.com/cv2midi/cv2midi.htm) shows a voltage to MIDI convertion board based on a PIC. I wonder if there is a similar work for AVR 8535 ? Does BACOMAVR support MIDI functionality? Is there any AVR compiler with MIDI functions? ...Analog voltage to MIDI converter with AVR

Gcc for AVR
0

marco belli - 2007-03-30 12:41:00
Hi, I'm a Linux user and gcc fan. At work I,m programming AVR ATMEGA128 using icc-avr and then loading the program to the board using MEGALOAD program. I'd like to try using gcc to compile my program. I have followed the instruction found in "AVR Libc Home Page" to compile my progr...Gcc for AVR

ATmega SPI question
0

Started by habib bouaziz-viallet 8 years ago
Hi all, Supposing AVR is a configured as a Master SPI device. Is it possible to discard AVR master SCK output signal and make SCK as an input in order to apply external bitstream clock. My app is connecting a Quad voice A/MU law Codec (MSM7705) to an AVR SPI bus. Many thanks ...ATmega SPI question

avr-gcc floating point problems
+2

Started by linnix 3 years ago
In response to another thread, I am still getting these problems with WinAVR 2010. I think the linker is hitting some AVR limits. There are similar reports on the web as well. ------------------------------------------------------------------------------------------------- unsigned char u; ...avr-gcc floating point problems

C preprocessors in GCC-AVR & AVR studio
0

Started by terry 9 years ago
Hi, I am using GCC and AVR sudio in my MCU project. I find a big problem when the two tools are used together. My C program has many "#ifdef"/"#endif" instruction segments to control different compilation options. However, when I debug the program in AVR studio and set w...C preprocessors in GCC-AVR & AVR studio

programming techniques of AVR MCUs
0

Started by Roman Mashak 9 years ago
Hello, All! I have a general question related to development procedure for AVR. Are there ane common recommendations about building programs for 8-bit AVR, like. I know, one of them - not to use global variables where it's possible, and how about structurual programming, splitting all code i...programming techniques of AVR MCUs

AVR uisp and STK500 Firmware version
0

Started by Ross K 8 years ago
I'm thinking if you use the UISP programmer with the STK500 board for AVR programming, you may have run into this already (I hope!!) I've been programming AVR devices with good success using uisp from unix (macOSX flavour) and using the STK500 with no problems. Unfortunately, I made the m...AVR uisp and STK500 Firmware version

GUI for ATMEL AVR
-1

noone@nowhere.undef - 2006-12-29 03:49:00
Hello, I'm just an electronic hobbyist (and physic teacher). I'd like to make a sort of chronometer for my Go-Kart. It's working fine now (using WinAVR as C compiler for a microcontroller (uC) ATMEL AVR ATmega8535) but I use a character LCD display. I would like to use a graphical LCD now...GUI for ATMEL AVR

AVR AT327000
0

Dan N - 2007-05-23 08:24:00
I've been shown a new dev kit for the AVR AT327000 that uses embedded linux and I wanted to get advice and opinions on this processor. I'm not familiar with AVR processors at all. I'd like to use the GCC compiler. Is this well supported? Does anyone know who's done the Linux port and is it...AVR AT327000

AVR-GCC Bug about atol()
0

Started by eeh 8 years ago
Hi, I find a bug in avr-gcc library. When the following code is compiled, the avr-objcopy.exe has problem and exit. The compilation information has the following information: Converting to AVR Extended COFF: main.cof avr-objcopy --debugging --change-section-address .data-0x800000 --change-...AVR-GCC Bug about atol()

20Amp H-Bridge driving with AVR
0

Started by Unknown 8 years ago
I'm an electonic amateur enthusiast and I want to drive 20Amp 12-24v DC motors with a H-bridge controlled with an AVR. Basicly AVR will receive speed commands from RS232, and it will count quadrature encoder signals (I do not now how to do it fast yet) from an encoder attacehed to the moto...20Amp H-Bridge driving with AVR

VCO control with AVR tiny/mega?
0

Andy - 2006-12-18 11:50:00
Hello: I am considering controlling a 15MHz VCO with an AVR tiny/mega. I want to be able to set the VCO frequency with the resolution of 500Hz to 1000Hz, in a 200 kHz range, with a closed control loop locking the VCO frequency, based on an AVR with a strict minimum of additional component...VCO control with AVR tiny/mega?

AVR Butterfly
0

Started by Pygmi 9 years ago
At what speed is AVR Butterfly clocked to run? Thinking if I should purchase couple of them and build up a prototype/demo units based on these... Pygmi ...AVR Butterfly

AVR and dim LEDs.
0

artswan - 2006-12-02 09:52:00
Hello all. I have been working with PIC microcontrollers for over 2 years now and I am familiar with and like them. However, recently I have started dabbling with Atmel AVR microcontrollers to see what they have to offer. Especially, since they seem quite popular these days and are showing up in...AVR and dim LEDs.

AVR + Ethernet TCP - performance??
0

Started by Marek Garwolinski 8 years ago
Hello Anyone has used a TCP/IP on AVR?? I'm planning to build a system consisting of ATMega128 + external SRAM + RTL 8019. I'm thinking of use "uIP TCP/IP Stack". It will be sending about 200-500 bytes of data to the server on TCP, doing 8 A/C conversion, checking state of ...AVR + Ethernet TCP - performance??

question on ARM comparing to AVR
0

cutemonster - 2006-11-03 15:01:00
I have experience developing 8051 but I'm very new to ARM comparing to AVR. My question is how ARM save data since it doesn't have built in eeprom like AVR? I checked many ARM eval board but they all don't have external eeprom. I found a ARM board that completely suit my needs but it doesn't ...question on ARM comparing to AVR
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