I'm new to the embedded world of development. I've noticed two major/multi-vendor types of microcontrollers. The simpler (relative low...

I'm new to the embedded world of development. I've noticed two major/multi-vendor types of microcontrollers. The simpler (relative low complexity) MCS-51 microcontrollers and the more complex ARM based microcontrollers. Are there more than these two major microcontrollers on the market that have multiple vendors? The AVR looks big but it looks as though Atmel is the only provider. I...

Can anyone help with Atmel ATmega169 rev numbers, I have two chips marked code 0339 and another 0352, is thisjust week 39 and week 52 of 2003?...

Can anyone help with Atmel ATmega169 rev numbers, I have two chips marked code 0339 and another 0352, is thisjust week 39 and week 52 of 2003? How can I tell what REV number are they? They both behave different so they are either REV B & REV C or REV C & REV D. Anyone help? Phil

Hi all, I have just began a new design around mega64 (AVR Atmel) and i spent a long day on a strange mega64 behaviour because it was shipped...

Hi all, I have just began a new design around mega64 (AVR Atmel) and i spent a long day on a strange mega64 behaviour because it was shipped with mega103 compatibilty mode enable in Extended fuse bits. Is that always true ? After that pb resolved, i found another strange thing, mega64 always programmed very well (uisp or sp12 dongles) even PEN is left unconnected. Are there another impor...

Hi, I'm looking for the files "cdc_enumerate.c" "cdc_enumerate.h" present in the "AT91xx_BasicUSB example" with code to enumerate...

Hi, I'm looking for the files "cdc_enumerate.c" "cdc_enumerate.h" present in the "AT91xx_BasicUSB example" with code to enumerate an AT91SAM7X256 as a (USB) CDC device. Does anyone know where I can download those files from? Of course, I have looked at the Atmel page, with no luck. Thank you, Bill

We have developed a board which has an ARM Cortex-M3 micro in the Arduino format. This is definitely not an official board, and by using a...

We have developed a board which has an ARM Cortex-M3 micro in the Arduino format. This is definitely not an official board, and by using a 72MHz 32-bit processor with 512KByte of Flash we guaranteed there would be a few changes from the 10MHz Atmel ATmega168 in the Arduino... But we tried to keep as close as possible to the Arduino spirit. At least the connectors are in the same places ...

Hi everyone, Im using a custom board, with an AT91rm9200. Im am trying to load some code onto the microcontroller using the xmodem protocol,...

Hi everyone, Im using a custom board, with an AT91rm9200. Im am trying to load some code onto the microcontroller using the xmodem protocol, but things dont seem to be going right. I am using the Debug port to transmit data serially to and from Hyperterminal in windows. I am using the xmodem ROM services on the 9200. I had borrowed code from the Application example on ATmel`s site (AT91...

I'd like to build a small (and not too expensive) embedded system capable of running Doom. I've heard of people being able to run Doom on an...

I'd like to build a small (and not too expensive) embedded system capable of running Doom. I've heard of people being able to run Doom on an Atmel AT32AP7000. However the components needed to build such a system still seem a bit large to me. And the processor alone is at over 18? at digikey, memory would add to the cost. Any ideas? Philipp

Hi it's blinking it's blinking, Atmel's SOT23-6 packaged processor ATtiny10 I have had the samples on my desk for some good months...

Hi it's blinking it's blinking, Atmel's SOT23-6 packaged processor ATtiny10 I have had the samples on my desk for some good months already but never got the time to find a programming solution, til today ! well I got some small PCBs from the fab, where I soldered the tiny10 and then well as many times before I had to make the programming solution alright this time I only modified some ...

Hi guys, I am designing a new Stellaris based (LM3S9B92) platform for a POS project. Stellaris looked the best way to go for me (small...

Hi guys, I am designing a new Stellaris based (LM3S9B92) platform for a POS project. Stellaris looked the best way to go for me (small package,MAC+PHY!!,easy to start ROM libraries,reputable manufacturer and good price),I ran very quickly out of i/o's. I was thinking about to use as a companion chip my old faithful ATF1504 CPLD, but ATMEL has disappointed me lately with its policy and prices t...

Hi, Has anyone added new board support for AT91RM9200-EK to SAM-BA? If anyone has, then can you please send the files that were modified or...

Hi, Has anyone added new board support for AT91RM9200-EK to SAM-BA? If anyone has, then can you please send the files that were modified or give me indications on how to go about this. I'm surprised that atmel has not added support for this board in SAM-BA. pj0585 --------------------------------------- This message was sent using the comp.arch.embedded web interface on http:...

I need someone to confirm that the SDRAM does not use data bus to receive commands. Which means that I can mix the data bus in whatever way...

I need someone to confirm that the SDRAM does not use data bus to receive commands. Which means that I can mix the data bus in whatever way it suits me while am routing the PCB... right? (i.e., connect D0 on MCU do say, D5 on SDRAM) TIA P.S. I really don't like the guy who wrote 0xcafedede in SDRAM init on Atmel's examples.

I have used a variety of different micros (Z80 onwards) since about 1980 but all the PROM or FLASH based ones (e.g. H8/300 or Atmel 90S1200)...

I have used a variety of different micros (Z80 onwards) since about 1980 but all the PROM or FLASH based ones (e.g. H8/300 or Atmel 90S1200) were programmed externally, via a spring-contact adaptor. We have one product using an H8/300 with an external 28C256 32kbyte parallel EEPROM for extra code, and we quickly found this could not be written with code running in it! No sh*t Sherlock, as t...

Have to write some AVR code and therefore have read the AVR Instruction Set manual and tried the assembler included in AVR studio. I think the...

Have to write some AVR code and therefore have read the AVR Instruction Set manual and tried the assembler included in AVR studio. I think the used syntax is completely unusable, so I decided to write my own assembler. A very first version can be downloaded from: ftp://137.193.64.130/pub/assembler/adela.zip Maybe there are some AVR experts who can give some suggestions for an improve...

How important is the trace length balance on signal lines to SDRAM? I recall coming across a document saying that the trace lengths needed to...

How important is the trace length balance on signal lines to SDRAM? I recall coming across a document saying that the trace lengths needed to have less than .5 inch difference from shortest to longest. But I think that was a DDR2 doc. I see some very obvious S curves in the lines on an Atmel SAM9261 EK board that uses PC100 speed SDRAMS. We will be using similar parts on a new des...

http://Microcontroller.com/Embedded.asp?did=142 Atmel; Moto... uh, Freescale(!); 8051; ARM; Microchip. I'm taking a short survey of...

http://Microcontroller.com/Embedded.asp?did=142 Atmel; Moto... uh, Freescale(!); 8051; ARM; Microchip. I'm taking a short survey of Microchip users to help decide what future directions development tools should take. The survey is confidential - I don't even ask for your email address, O.K.? It's only 11 questions that should take you less than a minute. Unless you really want to g...

We've picked an AVR for a small task in a project, haven't used one before. I'm looking for any and all recommendations for and/or against the...

We've picked an AVR for a small task in a project, haven't used one before. I'm looking for any and all recommendations for and/or against the C compilers available from various sources. We'll be using Atmel's Debug Wire debugger. All input appreciated. -- Jack Klein Home: http://JK-Technology.Com FAQs for comp.lang.c http://c-faq.com/ comp.lang.c++ http://www.parashift.com/c++-...

Hi, I am currently looking into the IAP features of the Atmel AT89C51CC03, and having difficulty understanding (or finding information) on...

Hi, I am currently looking into the IAP features of the Atmel AT89C51CC03, and having difficulty understanding (or finding information) on the performance. As far as I can tell, the user application sets up the data to be written to flash, along with the page and byte address, and then calls the AIP API which resides in a seperate flash array (FM1). This API actually performs the flash ...

Dear Sir/Madam, We want to develop an USB Iscsi initiator HBA, but we are new on Hardware. We are now seeking for a target board for our...

Dear Sir/Madam, We want to develop an USB Iscsi initiator HBA, but we are new on Hardware. We are now seeking for a target board for our production. Seems ATMEL is a good choice for us as it has many products fit our requirements (USB FS/HS slave SD card 100/1000Ethernet). However we would like to ask: 1.there are too many vendors/boards and we don't know how to select. Which board,...

Hi, Want to port a full screen (800x600 or 1024*768) LCD application onto an AT91sam9263 system running ARM Linux. The Atmel kit I am playing...

Hi, Want to port a full screen (800x600 or 1024*768) LCD application onto an AT91sam9263 system running ARM Linux. The Atmel kit I am playing around with has a QVGA interface. The data sheet is a little vague as to the capability of its internal LCD controller. Any advice or comment would be much appreciated. TLH

My spare PDS900 died. I have about 15 active designs all using through hole DIP 20 8K parts. Yearly volume 5K. Lots of years worth of 51...

My spare PDS900 died. I have about 15 active designs all using through hole DIP 20 8K parts. Yearly volume 5K. Lots of years worth of 51 assembler code. I use the basics, no analog, internal reset so the pin is usable, internal osc so the pins are usable etc. I did use the keyboard interrupt on one project. So I thought I might be able to buy a SL or atmel development system and create a 20 pin...