A company that makes microcontrollers and other chips.
1
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0answers
21 views
Atmel Software Framework. Confusion with USART example
I'm trying to get the following basic USART example working on a SAM4S:
http://asf.atmel.com/docs/3.4.1/sam4s/html/sam_usart_quickstart.html#usart_basic_use_case
I am using a custom PCB board with a ...
0
votes
1answer
27 views
Cortex M3 (ATSAM3N4B) Peripheral DMA read from SRAM ok, FLASH fails
I've stumbled across a peculiar problem with my PDC (Peripheral DMA Controller) where using the PDC to transfer a constant string from flash over UART 0 seems to produce an unexpected result. The ...
0
votes
2answers
40 views
Redefining Slave-Reset-Pin in MegaISP on ATmega2560
I want to make a Arduino ISP-Shield universal exchangeable between Arduino models. For this purpose I want to use the ISP-Header in combination with Pin 10 (like the Arduino Ethernet-Shield does). The ...
1
vote
0answers
50 views
Program to simulate seven segment display in atmel studio
I am using Atmel studio for the programming of atmega64 microcontrollers with a Cerebot board II.
Firstly, is there a program that can simulate a seven segment display device as if I was looking at ...
4
votes
1answer
148 views
Atmel AVR assembly language multiplying by 2
I'm trying to multiply a 32-bit unsigned number by 2 across registers r18, 19, 20 and ...
3
votes
1answer
62 views
Storing info bytes in ATmega169PA that remain after reprogramming
Does anyone know if there is a way that I can store 2 bytes of data into an ATmega169PA that will survive re-programming of the device? I would like to store a unique ID into an ATmega169PA that will ...
0
votes
0answers
32 views
Which programmer can be used with Matrix flowcode programming package?
I am trying to progam AVR chips using Matrix Flowcode package. Does anyone know which programmer can directly be interfaced with it?
2
votes
1answer
93 views
ADC of ATmega32
I want to use an ATmega32 ADC in its 4 channel single-ended mode to convert four analog signals into digital (one at a time). I have written the C code but what I cannot figure out is what I should do ...
6
votes
3answers
255 views
Switching from PIC to AVR [closed]
I have worked with PIC16 and PIC18s for over three years now and would like to get to know AVR as well. I have no specific project in mind, but would like to try around with the different ...
0
votes
1answer
66 views
Why Atmel TWI doesnt support I2C START BYTE on TWI?
I would like to know why Atmel TWI doesnt support I2C start byte.
I am reading the AT32UC3C2512C datasheet on the TWI part, and I can see it doesnt support the START BYTE from I2C (it's on page 698), ...
0
votes
1answer
46 views
Looking for some help identifying an AT90USB646-based board
I inherited this single board computer a while back - clearly some kind of developer board that has LEDs, I/O ports, two USB ports, an 8x8 LED matrix, buttons, sound, SD card slot, etc - like a super ...
3
votes
1answer
98 views
How to interpret microcontroller ADC module on datasheet? Datasheet syntax question
I am currently working an Atmel micro controller, the EVK1104S, which has the UC32 Data Sheet. We have actually planted this chip on a custom PCB and are in the process of writing more firmware.
...
1
vote
1answer
97 views
SD card socket with MMC and Atmel
I'm trying to include an SD card slot in one of my designs. The whole SD format seems confused at best, and I can't seem to find a definitive answer to what I need to wire up.
Apparently the easiest ...
0
votes
0answers
52 views
Writting in a USB memory
I have a AT91SAM7X-EK card from atmel, and I'm trying to write a string into it's memory then I want to read it back.
I order to do that I parsed the available devices using
...
0
votes
1answer
103 views
Arduino mega - best replacement for atmega 1280
I wonder if it is reasonable to replace atmega1280-16PU of a bricked arduino mega board?
If yes, does soldering in there a bigger uC make sense? i.e. ...
2
votes
1answer
66 views
Can I dynamically change the input clock frequency of the AT91SAM3X8E?
Background:
I'm attempting to use an AT91SAM3X8E microcontroller (for Arduino Due compatibility) to create a USB to \$I^{2}S\$ interface. Most \$I^{2}S\$ CODECs require a master clock that is ...
5
votes
1answer
132 views
Any disadvantages to single-supply mode?
I am using the ATMEL ARM SAM4S MCU for a project. It supports a single-supply mode where an internal voltage regulator provides the 1.08-1.32V necessary for VDDCORE and we need only provide 1.62-3.6V ...
0
votes
1answer
88 views
Beginning programming for Atmel uProcessors
I'm taking the next step, going from my Netduino into the smaller microcontrollers from ATMEL (since there is no really tiny (tinier than the netduino) stuff running .NET).
Also have some experience ...
3
votes
1answer
85 views
Atmel Markings 58BL W 9H0336E
ATMEL
MARKINGS: 58BL W 9H0336E
I have no idea what these marking indicate, can anyone here help me ID this part?
2
votes
1answer
144 views
Motor control with AVR
I am used to work with PICs, but I want to start using AVRs as well. One thing I like in the PICs is the EPWM (enhanced PWM) peripheral, in which you just set a couple of registers, and the PIC will ...
4
votes
1answer
258 views
measuring low-value capacitors with Arduino/Atmel
I recently bought a kit at Sparkfun to measure capacitors. (Which is actually this.)
It works well and accurately measures very tiny capacitors, but the firmware is not open source and I would like to ...
1
vote
2answers
54 views
Debugger Atmega1280
I have an Atmel board, precisely an Atmega1280. I uploaded my code on the board and I want debug it to take a look at the stack memory.
I just have the mini usb cable for the communication.
I read ...
1
vote
1answer
309 views
Arduino and embedded C programming in a windows based system? [closed]
I am currently using Arduino Ide to code my arduino but now i want to code my arduino in C/C++ and i dont know where to start from what is the best tools and tutorials suggested for this. I'm a ...
1
vote
1answer
79 views
Using only OC0B pin to generate tone
I'm trying to generate tone with couple configurable frequencies on pin OC0B of Atmega328, Fast-PWM mode.
...
0
votes
1answer
127 views
Ardupilot, atmega1280 and barometer
I'm working on a project and I need to know where the information taken by the barometer sensor are stored.
I think in the eeprom, but exactly where? Is there a specific address or register memory?
...
3
votes
3answers
214 views
Implementing HID input device with an Atmel AVR32
I want to implement a small HID input device using one of the Atmel AVR32 chips (Atmel AT32UC3B1256). The chip has an on-board USB transceiver, with D+ and D- pins etc.
I've been looking at tutorials ...
2
votes
2answers
415 views
What's the difference between ATMega1284 and ATMega1284p?
I want to buy an Atmega1284p, doing a research on my local hardware seller (RS), I've found two models, the Atmega1284p-pu and the Atmega1284-pu. Reading the specs I don't see any difference (maybe I ...
7
votes
2answers
256 views
Generating servo signal in atmega2560
I'm new to AtmelStudio. I need to know how to generate a servo control signal using timer modules of atmega2560. I'm using an Arduino Mega board. (please refer the last paragraphs of this page for ...
0
votes
0answers
101 views
Atmel UC3L/SAM4L + 2.8V peripherals li-pol charger and power rails (PMU/PMIC ?)
I am designing a very tiny low-power Atmel UC3L (or SAM4L) project and I need the smallest solution for safe Li-Pol charging and to provide 2.8V and 1.8V power rails.
I found some LTC parts with dual ...
3
votes
1answer
566 views
Determining which pin triggered a PCINTn interrupt?
Am I correct in thinking that if you have two pins causing the same AVR PCINT interrupt, (e.g. PCINT0 vector caused by either PCINT0 or PCINT1 pins -- I think the naming overlap of vectors and pins is ...
0
votes
2answers
97 views
Help find data sheet for micro-controller?
I found a packet of 10 micro-controller in my brother's electronics stuff. It reads "Atmel ATMEGA168A-PU".
I looked at Atmel's website but could not find any such product. I need it's data sheet to ...
1
vote
1answer
326 views
ISP programming of an attiny88 not working [closed]
I'm trying to get an ATTiny88 running for the first time and have problems with getting the software on it. The JTAGICE3 isn't able to connect to the ATtiny88. I get the error "Unable to enter ...
5
votes
4answers
482 views
Best IDE for 32-bit microcontroller on Linux
I'm choosing a 32-bit microcontroller to implement a Kalman filter.
I am very attracted to the Atmel Studio 6 IDE. However, it only appears to run on Windows.
Could anyone suggest a good Linux IDE?
...
0
votes
0answers
407 views
Need explanation on how to flash HEX files on ATmega32u4 via AVR109 protocol
I am not an electronic expert, so forgive me if I am misusing the terms in my question or if my question contains imprecisions and/or misinterpretation on how a Leonardo Board works. Corrections are ...
3
votes
1answer
495 views
Transmission (TX) halts using FTDI 232RL with ATmega328-PU
FTDI seems to be a popular forum topic, but I can't seem to find an answer to a confounding issue I have. I'll try to give as many details as I can, since I can't seem to narrow down the issue.
I am ...
0
votes
1answer
223 views
Preprogrammed Atmel microcontrollers?
Where can you buy preprogrammed atmel microcontrollers such as the attiny13a microcontroller in a surface mount package?
I know you can buy preprogrammed PIC microcontrollers, but not atmel ...
1
vote
4answers
226 views
attiny13a SMD production programming without programming jumper? Possible?
I'm struggling to find a decent way to program a production run of some boards. The boards are going to be about 2cm by 3cm ovals with a surface mount SOIC 8 pin Atmel attiny13a microcontroller. The ...
0
votes
1answer
221 views
Is RESET* on the XMEGA disabled when using the PDI interface?
When PDI CLK is connected on the XMEGA (also the RESET*) pin, can this pin still be used to trigger a reset on the chip? If so, how does the chip tell the difference between PDI being used as a clock ...
0
votes
0answers
126 views
Atmel XSense touch screen? [closed]
is it possible to buy the Atmel XSense touch screen at this time?
I can't find anywhere that sells it. Is it even available to the public?
...
0
votes
3answers
874 views
Atmel chip come with bootloader?
I would like to know if Atmel microcontrollers come with a bootloader. For example I asked a question earlier where other users were saying that a microcontroller could be used instead of a 555 timer ...
5
votes
5answers
671 views
What is the behavior of an unprogrammed MicroController?
Problem:
I get Errors when trying to connect to the MicroController using the PDI interface. How does a MicroController behave when it hasn't been programmed? Is there a pin that will toggle to show ...
1
vote
0answers
304 views
attiny avr programmer
I would like to build an attiny programmer , I found tow circuits which are serial programmer ... can you help me to decide any one is better.
first one which I think is old:attiny board
second one ...
0
votes
2answers
123 views
Automatic ranging level convertor?
I'm designing a PCB based on an ATxmega microcontroller (max. 3.6v tolerant). I plan to connect a range of external 3.3v devices. However, I do have a few 5v devices that I want to connect.
There are ...
2
votes
3answers
542 views
Help a beginner who wants to start microcontroller coding
I see lot of chip from Atmel company like AT89C2051,AT89S52,Atmega32,P89V51RD2.
Suppose I write a code for Atmega32 which blink one LED after 10 milliseconds.
Can I use the same code for AT89C2051, ...
1
vote
2answers
1k views
Replacing atmega8 with atmega328(arduino)
I was supplied with an arduino board in a workshop(which is a very old version board) similar to :
the board comes with atmega8 as a micro controller ..
I wanted to increase the performance and ...
2
votes
2answers
329 views
Accessing data past 64k boundary on atmega1280
I need to be able to store and refer to constant data arrays which must be placed after the 64k boundary in the atmega1280. How do I create the correct data structure, and then access it for the ...
2
votes
3answers
1k views
Can I send data to my computer from the serial port on an Arduino/ATTiny?
I am using an Arduino to program an ATTiny like in this tutorial. My question is:
How can i send data to my computer on the serial port? Is it possible ?
Any ideas are welcome.
2
votes
1answer
780 views
Init code for reading and writing SD card with MCS51?
Do you know how to interface SD card with MCS51,
AT89S52 with SD card and
code example in Keil if there's any...
Thanks for the info...
2
votes
2answers
3k views
Make LUFA for Arduino UNO / atmega16u2
I have an Arduino Uno r3 board which has an atmega16u2 chip that normally contains the usb to serial firmware that allows the board to communicate with the IDE.
I have been learning how to flash ...
-1
votes
2answers
1k views
Creating 1 hour delay with 89C51 micro controller
I am writing an Assembly Program function for 89C51 which can create one hour delay. I can't use any other micro controller as only 89c51/52 is available locally. So I am stuck here because even when ...
