I am looking for suggestions on good microcontrollers that can withstand tuff temperatures and are able to do midi properly. I have tried the...

I am looking for suggestions on good microcontrollers that can withstand tuff temperatures and are able to do midi properly. I have tried the atmega48 and it is not stable. Any solutions / ideas?

Some people has been desperately looking for these parts. Noticed that we received a bunch of samples that has been on backorder (oldest since...

Some people has been desperately looking for these parts. Noticed that we received a bunch of samples that has been on backorder (oldest since June) for some time, so hopefully there should be significant numbers around now in the sample department. -- Best Regards Ulf at atmel dot com These comments are intended to be my own opinion and they may, or may not be shared by my employer, A...

Hi all, I have a very annoying problem: I have an existing design with an ATmega8515, with an ISP connector setup as specified in one of the...

Hi all, I have a very annoying problem: I have an existing design with an ATmega8515, with an ISP connector setup as specified in one of the Atmel appnotes about implementing an ISP connector. It uses a network on the reset line, with a 10k resistor to VCC, a 4n7 cap to ground and a diode across the resistor for protection. This has always worked on a 2313, a 8515 and a Mega8515. I recentl...

A customer of mine recently changed from using AT90S8515 to ATMega8515 as the former is obsolete. We've had a couple of units in the field lose...

A customer of mine recently changed from using AT90S8515 to ATMega8515 as the former is obsolete. We've had a couple of units in the field lose eeprom data - we're still waiting to get them back to look further but has anyone else seen anything like this ?

Here's a warning that may hopefully save someone else all the hassle we've just had after migrating a product to the Mega8515 - there may be a...

Here's a warning that may hopefully save someone else all the hassle we've just had after migrating a product to the Mega8515 - there may be a similar issue with other back-compatible mega parts.. We had some code that was originally written for a 90S4414. This moved to a 90S8515 a while ago when the 4414 went obsolete. We recently changed to the AtMega8515, again due to the old part going o...

Hello, I have problem with .C programming! (Working with Code Vision for AVR). I have set up one PCF8591 on I2C BUS. Can You help me with...

Hello, I have problem with .C programming! (Working with Code Vision for AVR). I have set up one PCF8591 on I2C BUS. Can You help me with code, where I m doing wrong? Chip type : ATmega8515 Program type : Application Clock frequency : 4,000000 MHz Memory model : Small External SRAM size : 0 Data Stack size : 128 Communication parameters: 9600 8N1 [RS232 SPARE header] [PORT...

I am doing a project with ATmega8515. But the MCU's internal Flash memor is not enough for the firmware and I need to add an external memory...

I am doing a project with ATmega8515. But the MCU's internal Flash memor is not enough for the firmware and I need to add an external memory chip. What is the recommended EEPROM should I use in this case ? Any help could be highly appreciated ! N.L.Trung This message was sent using the comp.arch.embedded web interface o www.EmbeddedRelated.com

I am struggling to get the power consumption of sensor device down. According to the datasheet (page 208, top graph), the ATmega8515 I use,...

I am struggling to get the power consumption of sensor device down. According to the datasheet (page 208, top graph), the ATmega8515 I use, uses slightly less than 1mA @ 3.3V and 1MHz internal clock while active. But I measure around 2.3mA. Even when I stop all I/O and go into an endless loop, it still uses 2.1mA. Is Atmel showing off here or am I missing something? Meindert

Here's a newbie question. I'm doing the the example program that's listed in the gcc AVR libc documentation. I'm using the STK500 dev. board...

Here's a newbie question. I'm doing the the example program that's listed in the gcc AVR libc documentation. I'm using the STK500 dev. board with a ATMEGA8515 and AVR Studio. The example provides a file iocompat.h that defines some device specific stuff. Here's a exerpt: #if defined(__AVR_AT90S2313__) # define OC1 PB3 # define OCR OCR1 # define DDROC DDRB # define TIMER1_OVF_vect TIM...

I am a new AVR user.I am having a similar problem.I'll explain 1)My programmer is STK200 based.I am using LPT1 pins as...

I am a new AVR user.I am having a similar problem.I'll explain 1)My programmer is STK200 based.I am using LPT1 pins as below 6=SCk 7=MOSI 9=RST 10=MISO 2 and 12 shorted 3 and 11 shorted Now I have pony prog as well as Codevision's inbuilt programmer. Before flashing this IC i tried reading its flash/eeprom etc and good,both softwares read the mega8515. Now I am using external xtal 4MHz...

I cannot read fuses on ATMEGA8515 using STK500 (I have only tested this so far) in Linux (Kubuntu 8.04) using avrdude 5.5. I have...

I cannot read fuses on ATMEGA8515 using STK500 (I have only tested this so far) in Linux (Kubuntu 8.04) using avrdude 5.5. I have tried variations of this command such as using sudo, but nothing works. $ avrdude -c stk500v2 -p m8515 -P /dev/ttyUSB0 -U hfuse:r:high.txt -U lfuse:r:low.txt avrdude: AVR device initialized and ready to accept instructions Reading | ###################...

Is there a requirement to delay using the USART (at least for asynchronous transmission) for a period of time after initially setting it up...

Is there a requirement to delay using the USART (at least for asynchronous transmission) for a period of time after initially setting it up and enabling interupts until transmitting the first character? I ask, because when I set it up and then immediately use it to output a character (or string of characters), they are consistently wrong. I tried outputing the following string: "sys init...

What are the key steps to getting AVRStudio 4.11 to show C source file debugging info (rather than an assembly listing of the flash...

What are the key steps to getting AVRStudio 4.11 to show C source file debugging info (rather than an assembly listing of the flash memory)? I've been trying different things for hours and nothing seems to work. I have an ATmega8535. Is there any documentation that focuses on the 20% of things that 80% of users would like to do (I'm assuming this to be something like the following): ...

Hi, I want to learn if I can use PWM as a DAC on AT89C51AC3. I'm going to take voice from built-in ADC (has 8-bit resolution), and send it...

Hi, I want to learn if I can use PWM as a DAC on AT89C51AC3. I'm going to take voice from built-in ADC (has 8-bit resolution), and send it to speaker. But AT89C51AC3 doesn't have a built-in DAC. I have found a project from Internet that uses PWM to create analog voice. But the project is designed with ATmega8535. Thanks

Hello, I am working on my first embedded project (hobbyist) where I would like to interface an AVR to a small touch screen lcd. I have an...

Hello, I am working on my first embedded project (hobbyist) where I would like to interface an AVR to a small touch screen lcd. I have an ATMega8535 on hand that I have been training to do simple tricks like flash LEDs and whatnot. I have also ordered a 240x160 touchscreen LCD (Microtips MTG-F24160BFWHSEB-18A). This LCD does not incorporate a controller, just the segment drivers (NT7701/NT...

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...

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. But I also would like to have some widgets (like in GTK) Unfortunately I don't know if it is pos...

Good morning I have a project where I need to embed microcontroller in a Xilinx ML401.This project consist a GSM which connect to...

Good morning I have a project where I need to embed microcontroller in a Xilinx ML401.This project consist a GSM which connect to a microcontroller(ATMEGA8535) and the microcontroller is eventually connected to Xilinx Virtex4 (ML401).It is actually road traffic light implementation for Emergency Vehicle Preemption System. My friend told me that I could do this by implementing a Microbl...

Curiously, Atmel seem to have changed both their URI minting scheme and the PDF formatting sometime between 19'th and 29'th. (As well as...

Curiously, Atmel seem to have changed both their URI minting scheme and the PDF formatting sometime between 19'th and 29'th. (As well as their logo.) Thus, the document formely known as, say: http://www.atmel.com/Images/doc8159.pdf is now instead: http://www.atmel.com/Images/Atmel-8159-8-bit-AVR-microcontroller-ATmega8A_datasheet.pdf (which seems almost hopeless for me to re...

Hi, All. We are trying to implement atmega90CAN128. Could anybody advise a program (preferably with source ) that would sniff CAN-bus...

Hi, All. We are trying to implement atmega90CAN128. Could anybody advise a program (preferably with source ) that would sniff CAN-bus transactions and send data to e.g. RS232 port? Or advise why this my desire may be unreasonable? Thanks, Alex

For people in this newsgroup that has been wondering... Key features * ATmegaAVR core (just higher frequency) * 1.6V-3.6V operation *...

For people in this newsgroup that has been wondering... Key features * ATmegaAVR core (just higher frequency) * 1.6V-3.6V operation * Flash (max 384 kB)/SRAM/EEPROM * 32 Mhz operation (max 32 MIPS) * 44/64/100 pin package The pinout allows a design to use 44,64 and 100 pin concentric pads with S/W compatability. Pin multiplexing will be identical for all I/O ports, Larger ...