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Attn: Ulf, Atmega169P-16MU

Started by linnix in comp.arch.embedded17 years ago 2 replies

Listen, Ulf: There are less than 500 in distribution channels: 300 in Digikey and 260 in All American. None in Arrow and Avnet. Digikey has...

Listen, Ulf: There are less than 500 in distribution channels: 300 in Digikey and 260 in All American. None in Arrow and Avnet. Digikey has more than 2000 last week (unless they lied), so our competitors got more than 1600 of them. Lead time are 8 weeks. We need 1000 ASAP, 2000 in November and 3000 in December, etc. If Atmel is not making them fast enough, we will have no choice but ...


Transistor count of common uCs?

Started by johannes m.r. in comp.arch.embedded20 years ago 4 replies

Hello, Nowadays one often hears/readers about the transistor count of modern CPUs and GPUs. But what's the transistor count of common uCs like...

Hello, Nowadays one often hears/readers about the transistor count of modern CPUs and GPUs. But what's the transistor count of common uCs like the Microchip PIC, Atmel AVR or similar microcontrollers? Just being curious :-) Thank you in advance! Regards, johannes


ST10 vrs ARM

Started by David Fowler in comp.arch.embedded18 years ago 4 replies

Someone I know is about to start a new hardware development effort with the ST10. Seems to me that the ARM would be a better choice from the...

Someone I know is about to start a new hardware development effort with the ST10. Seems to me that the ARM would be a better choice from the standpoint of unit cost and development tools. Either processor will do the job. What do you think of the ST10 vrs Phillips or Atmel ARM?


802.15.4 RF issues

Started by linnix in comp.arch.embedded11 years ago 26 replies

We are using the Microchip MRF24JA40 802.15.4 RF transceiver, might look into Atmel's AT86RF231 and Freescale's MC13202 as well. We have one...

We are using the Microchip MRF24JA40 802.15.4 RF transceiver, might look into Atmel's AT86RF231 and Freescale's MC13202 as well. We have one working board talking to a Microchip pre-made module, but two non-working boards. The only difference is the crystal. The working one is 5 mm SMD and the non-working one is 11 mm 2 pins. Could it be so sensitive to crystal selection? Do we need to p...


AVR Insight / JTAG query

Started by Roger in comp.arch.embedded19 years ago 1 reply

So far I've been debugging using simple text output on USART s or LCD etc. I'd like to get into using the Insight debugger and go the whole hog...

So far I've been debugging using simple text output on USART s or LCD etc. I'd like to get into using the Insight debugger and go the whole hog and use the JTAG interface. The Atmel JTAGICE is too expensive so I need one of the cheaper alternatives. I'd be interested to hear anyone's thoughts on a reliable, cost effective JTAG interface which is compatible with Insight. Also, put simply...


Atmel AT90USBKEY

Started by Roland Zitzke in comp.arch.embedded18 years ago 3 replies

Hi, has anyone had any luck in obtaining the software for this evaluation board? I requested the standard (USB Device) packages and was able to...

Hi, has anyone had any luck in obtaining the software for this evaluation board? I requested the standard (USB Device) packages and was able to download some password protected files. On the download page it sais that the passwords are sent to the given email address within a couple of days - that's three weeks ago now and I haven't goten anything. I also requested the USB Host packages...


ISP and JTAG Headers for AVRs

Started by ratemonotonic in comp.arch.embedded17 years ago 2 replies

Hi all , I am new to AVRs , and I am stuck at trying to select the correct connectors for the target board to properly connect to JTAG ICE...

Hi all , I am new to AVRs , and I am stuck at trying to select the correct connectors for the target board to properly connect to JTAG ICE mkII and AVR ISP mkII. Unfortunately cannot find any reference on atmel docs about the connector dimension etc. For ppl who have already done this before it will be a piece of cake ! would it be possible to get some part numbers , any info. BR Rat...


AT91SAM7S oscillator?

Started by orc in comp.arch.embedded19 years ago 2 replies

I'm trying to figure out how the oscillator is working in the AT91SAM7S from Atmel. The data sheet lists that an up to 20 Mhz crystal can be...

I'm trying to figure out how the oscillator is working in the AT91SAM7S from Atmel. The data sheet lists that an up to 20 Mhz crystal can be connected and the summary says that the oscillator runs at up to 55 MHz - is the crystal frequency multiplied by 2.75 or what? The system I'm developing needs a 6.0MHz and a 5.12MHz oscillator - will it be configure the PCK0-2 outputs to these freq...


SPCI Parser

Started by noon...@nowhere.undef in comp.arch.embedded15 years ago 13 replies

Hello, I'm looking for an open source SPCI parser to put in a microcontroller project (ATMEL AVR) I'd like to communicate with this device...

Hello, I'm looking for an open source SPCI parser to put in a microcontroller project (ATMEL AVR) I'd like to communicate with this device using a USB com (using a FTDI FT232) I see on http://compilers.iecc.com/comparch/article/00-07-096 http://coding.derkeiler.com/Archive/General/comp.arch.embedded/2007-12/msg00829.html that some other people wonder this... (without having any answer) ...


USB firmware help needed

Started by Sean Whitesell in comp.arch.embedded20 years ago 6 replies

I have an Atmel AT89C5132 that has some USB mass storage firmware. It uses the Windows USBstor.sys Mass Storage Class driver. I need to be able...

I have an Atmel AT89C5132 that has some USB mass storage firmware. It uses the Windows USBstor.sys Mass Storage Class driver. I need to be able to keep that in place an still be able to send data from a desktop application to the chip that will get passed on to another processor. I need help understanding where I can safely modify the firmware, knowing what to look for (CBW or CSW etc), and ...


Using different numbers of TQ but same frequency on CAN bus?

Started by Mike Noone in comp.arch.embedded17 years ago 2 replies

Hi - I have a system that consists of one Atmel SAM7X256 connected via CAN to 6 Microchip MCP2515 chips. The MCP2515s have 20MHz clocks, and the...

Hi - I have a system that consists of one Atmel SAM7X256 connected via CAN to 6 Microchip MCP2515 chips. The MCP2515s have 20MHz clocks, and the SAM7X256 has a 55MHz clock. I have the CAN bus running at 1MHz right now, but the chips aren't perfectly matched. Specifically, the SAM7X256 uses 11TQ, while the MCP2515 uses 10TQ. I had to do this as otherwise I'd have to have fractional baudrate di...


ARM processors and remap

Started by Mark in comp.arch.embedded15 years ago 4 replies

Hello I'm going to port bootloader U-Boot on a ARM based platform (arm926ej-s specifically), my final goal is to lauch Linux on my board. I...

Hello I'm going to port bootloader U-Boot on a ARM based platform (arm926ej-s specifically), my final goal is to lauch Linux on my board. I worked with arm7 CPU before, although this is my first experience with U-Boot. Now I'm gathering information on it. Many MCUs built on arm7tdmi core (for example, SAM7 family from Atmel) involve remapping, i.e. 0x0 address points on ROM at reset ...


Problem with swinging Atmel AVR comparator

Started by Anonymous in comp.arch.embedded19 years ago 3 replies

Hello, I am developing a BLDC-Controller with the ATMEGA88. For Zero-Crossing-Detection I use the AVR build in Comparator. But I have...

Hello, I am developing a BLDC-Controller with the ATMEGA88. For Zero-Crossing-Detection I use the AVR build in Comparator. But I have a problem with the stability of the comparator output. It seems, that the Comparator-Output-signal is very instable and tends to swing. Who have the same experience and can tell to improve the behaviour of the comparator? Best regards Wolfgang


bootloader for SAM7 parts

Started by Roman Mashak in comp.arch.embedded16 years ago

Hello, All! I'm studying SAM7 and going to implement a simple bootloader for sam7s256 and sam7s64 later on. I already checked the application...

Hello, All! I'm studying SAM7 and going to implement a simple bootloader for sam7s256 and sam7s64 later on. I already checked the application note "Safe abd secure bootloader" provided by Atmel. It's source code is based on IAR compiler, and it's confusing me a lot. What I don't quite understand now is the concept of remapping. When and where in bootloader design I need remapping functio...


Touch screen PENIRQ problems with AD7843

Started by Neil Bradley in comp.arch.embedded16 years ago 6 replies

Greetings fellow embedded systems colleagues - I have a new Atmel ARM9 based design, connected to an AD7843 touch screen controller. The...

Greetings fellow embedded systems colleagues - I have a new Atmel ARM9 based design, connected to an AD7843 touch screen controller. The problem is the !PENIRQ line *NEVER* changes state when the panel is pressed. Looking at it on an analog scope, it never even tries to budge. If it were a pullup/pulldown issue, I would fully expect it to come down at least a little from the 3.3 volt ra...


Need RTOS & SSH for ARM-based remote terminal

Started by Sean_Q_ in comp.arch.embedded16 years ago 1 reply

Processor is Atmel AT91SAM7XC256 connected by GSM modem. The client has specified "encryption". I think it needs a formal RTOS and Secure...

Processor is Atmel AT91SAM7XC256 connected by GSM modem. The client has specified "encryption". I think it needs a formal RTOS and Secure Shell; client says "get it working ASAP first and we'll add encryption later." Any recommendations? btw the eCosPro SSH middleware seems to be server only, not client. TIA, Sean_Q_


AVR EEPROM Endurance

Started by Greg Schaefer in comp.arch.embedded20 years ago 8 replies

I was wondering if anyone has experience with EEPROM endurence on Atmel AVR parts. I have a controller project that requires a real-time...

I was wondering if anyone has experience with EEPROM endurence on Atmel AVR parts. I have a controller project that requires a real-time clock that I originally planned to implement via a DS1320+supercap. However, I recently found a prebuilt board that does 90% of what I want but does not include a battery/cap backup RTC. I can use one of the AVR timers to generate an accurate clock while i...


Simple, embedded USB host for digital camera control

Started by Ric in comp.arch.embedded18 years ago 13 replies

Hello, World! I want to remotely control a digital camera (Canon Powershot S60, and maybe others) for use in aerial photography (with kites,...

Hello, World! I want to remotely control a digital camera (Canon Powershot S60, and maybe others) for use in aerial photography (with kites, blimps, etc.) *SHORT STORY* ============= Any suggestions of how I can do this via USB? Do you think it is feasible with an Atmel AT90USB1287? Or would I need a AT43USB380, or other? For me, the simpler the better... *LONG STORY* ========...


uC recommendation

Started by Bo in comp.arch.embedded19 years ago 18 replies

Looking into uC for an small embedded project. I need the following interfaces: Compact Flash with DOS File system Ethernet MAC 2...

Looking into uC for an small embedded project. I need the following interfaces: Compact Flash with DOS File system Ethernet MAC 2 Uarts Can anyone recommend a uC that fits the bill? I'd greatly prefer avoiding an RTOS if possible--but I do need DOS file system and TCP/IP capability. So far we've looked at ZilogEZ80 Acclaim Intel Xscale Atmel AT91 ARM Maxim/Dallas DS80C400 ...


WinAVR 20040404 Released

Started by Colin O'Flynn in comp.arch.embedded20 years ago 2 replies

Announcing WinAVR 20040404 WinAVR (pronounced "whenever") is a suite of executable, open source software development tools for the Atmel AVR...

Announcing WinAVR 20040404 WinAVR (pronounced "whenever") is a suite of executable, open source software development tools for the Atmel AVR series of RISC microprocessors hosted on the Windows platform. It includes the GNU GCC compiler for C and C++. WinAVR can be found at Below is just a sample of what's new - Installer: - New compressi



The 2024 Embedded Online Conference