A company that makes microcontrollers and other chips.
1
vote
0answers
19 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
1k views
8u2 programming with Flip 3.4.5
I'm attempting to update the firmware on my Arduino Mega 2560. I'm following this tutorial.
However, when I try to use flip, whenever I try to find my device (from USB), it tells me that ...
0
votes
1answer
26 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 ...
3
votes
1answer
544 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
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
49 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
144 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
30 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
92 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 ...
8
votes
8answers
2k views
RnD on an EEG, Help required, what op-amp?
this is my first post, and I need some help/advice finding the right integrated circuits.
I'll start by describing the project background a bit. I've received a fellowship to develop an open source ...
6
votes
3answers
254 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 ...
3
votes
4answers
2k views
DSC Keybus Protocol
I'm plan to interface a atmel avr with my alarm system in home but the issue is DSC has a propriatary protocol between the keypad and the base. So has anyone messed with this before or can give me a ...
0
votes
1answer
64 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
45 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
97 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
101 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
65 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
131 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
84 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?
3
votes
2answers
1k views
Is is feasible to build an audio recorder with SD card storage using ATmega 16 or 32?
Is is feasible to build an audio recorder with SD card storage using ATmega 16 or 32 running at say 16 MHz?
If yes, what would it need in components? I don't expect you to make a device for me, but ...
2
votes
1answer
143 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
252 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
1answer
308 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
2answers
53 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 ...
0
votes
0answers
404 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 ...
1
vote
1answer
77 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?
...
6
votes
4answers
392 views
What is Arduino?
What is this Arduino concept that I keep hearing about? Is it a microcontroller family, or a demoboard?
Please include pictures in your answer, and if there are multiple possible items known as ...
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 ...
7
votes
2answers
255 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 ...
2
votes
2answers
400 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 ...
3
votes
3answers
212 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 ...
0
votes
2answers
96 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 ...
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 ...
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 ...
5
votes
5answers
670 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
1answer
320 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 ...
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 ...
5
votes
4answers
479 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?
...
3
votes
1answer
493 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 ...
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
220 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 ...
2
votes
1answer
773 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
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.
0
votes
0answers
125 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
869 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 ...
