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1
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1answer
264 views

Xmega Port Read/Write

How to access the Pin directly to read or write data? If I want to write data on pin6 how can I do that..Or I want to read data from a specific pin.. Thanks
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 ...
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 ...
2
votes
0answers
134 views

Is there a tool to generate .svf file for XMEGA programming?

There is a tool called avrsvf that can be used to convert .hex file to .svf for JTAG programming of AVR devices. The tool, however, does not support XMEGA devices. Is there a similar tool for XMEGAs?
1
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2answers
249 views

How does Atmel's XMEGA numbering scheme work?

Atmel has several series of XMEGA chips. How does the numbering scheme work?
7
votes
4answers
956 views

Crystals and Load Capacitance

This feels like a dumb question, but I'm going to ask it anyway. If a crystal has a rated load capacitance of 6pF, is the right thing to do to put a 6pF capacitor to GND on either leg of the crystal? ...
4
votes
2answers
733 views

What is the state of XMEGA programming from Linux?

What are the hardware and software options for programming an XMEGA from Linux?
2
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1answer
592 views

Can the STK500 program an XMEGA?

Can the STK500 program the XMEGA as it arrives from Atmel?
7
votes
5answers
2k views

AVR Random Number Generator

I've read an appnote from TI (slaa338) that describes a technique for generating "for real" (as opposed to "pseudo") random numbers. It exploits the somewhat exotic clock subsystem of the MSP430 to ...
2
votes
2answers
699 views

XMega Software Interrupt?

Does anyone know if there is a way to cause a interrupt via software? Right now I am setting up a timer at a very low timeout 1ns and then using that to cause the interrupt. Sorry if this is a dumb ...
2
votes
1answer
4k views

Reading a pin as an input on AVR XMEGAs

I have been messing with AVR's XMEGA line. They are pretty amazing microcontrollers. However, Atmel changed much with this new line. I am trying to detect a pin going low. I have tried to set the ...