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Discussion Title Created date
Yet another "which oscope to buy" thread...
I've been told enough times that I need an oscilloscope, so I guess I'll get one. I've read several dozen similar threads, but many are several years old and (perhaps) out dated....
Thursday, 14 June 2012 - 20:05
Chip selection. Attiny1634R - what's the "R" indi
Hi. I'm trying to find a chip for my upcoming project and my search came down to the Attiny1634. However, when I head on over to distributor sites, there appears to be...
Wednesday, 6 June 2012 - 16:44
SO FRUSTRATED! Why can't I connect AVR to ISP?
I was working on a project and suddenly I can't read/write/anything via ISP. I've been at this for hours and I've boiled this bloody thing down to its bare nuts and it still won'...
Thursday, 31 May 2012 - 05:33
Generate clock signal... simple code please
Hi. I'm tired. I need a 1Mhz clock signal and I don't want to wait a day to get an oscillator. I have a Teensy 2.0 fired up and ready to go... surely I can generate a 1Mhz clock...
Thursday, 31 May 2012 - 00:15
Unpowered ISP / reset interaction
Hi. Ran into a "huh?" moment... confused. I have an AVR device that I have to frequently update and which does not have easy physical access, so I permanently mounted a usbasp ISP...
Tuesday, 29 May 2012 - 13:26
Timer/pwm startup question
Hi. I'm interfacing an Atmega32u4 with a simple LED driver IC and using PWM to control brightness via the IC's enable (EN) pin. Not that its a huge deal... but when I turn on the...
Monday, 14 May 2012 - 22:43
What's wrong with this circuit??
Hi. I'm trying to throw together a simple (or so I thought) breadboarded circuit based around the schematic found in an IC datasheet. Here are the components (links are to...
Sunday, 6 May 2012 - 23:22
Thinking ahead... avr-gcc support for unsupported xmega's
Hi. I'm just thinking a bit ahead because I'm not yet ready to jump into the Xmegas. But looking at specs, the Atxmega128a3u is perfect for my upcoming project. I took a look,...
Monday, 30 April 2012 - 21:43
Trying to understand USART Baud
I D/l an example simple c code which included this: #define FOSC 8000000UL //system clock speed #define BAUD 9600UL #define MYUBRR FOSC/16/(BAUD-1) Ok, so my clock is 16M so I...
Thursday, 26 April 2012 - 16:36
SPI setup on a device that wasn't designed with SPI in mind.
Hi. Interfacing a new Atmega32u4 board (developing with a Teensy) with an existing Atmega64a board with very limited connection options and available pins and also nearing the...
Monday, 23 April 2012 - 17:14
Making TWI connection to existing hardware... suggestions?
Hi. See attached diagram. I am trying to interface a new AVR device with an existing AVR device via Two-wire Interface (aka twi, i2c). The existing device uses PD0/1 as GPIO but...
Saturday, 14 April 2012 - 20:15
Bare minimum AVR8 setup for ISP programming target?
Hi. Simple question (I hope). I'm trying to troubleshoot an ISP programmer I'm building. To take things down to the simplest equation, I want a bare-minimum target to program....
Sunday, 25 March 2012 - 05:09

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