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Controlling many output lines from just a few GPIO lines
Hi Everyone I am looking for a way to switch a large (ish) number of outputs from an AVR micro. The GPIO lines would be connected to an LED bank of around 60 LEDs and I want to be...
Wed. Jun 19, 2013 - 08:27 AM
SDK500 attiny45v programming error
Hi I have been programming attiny45v chips for for years now. We have just received a new batch of attiny 45v and tried to program them. We keep getting: Quote:[ERROR] Failed to...
Mon. May 28, 2012 - 09:29 AM
Extreme 'sensor' event timing?
Hi I want to find a way to measure the time between 'sensor' events that happen very quickly. So for example, if I get a high signal on a GPIO that lasts for around 0.5ns I want...
Tue. Apr 17, 2012 - 04:25 PM
The given key was not present in the dictionary
Hi I am trying to debug my AVR Studio 5.0 project and I am getting: The given key was not present in the dictionary I have never seen this before, does anyone know how to fix it?...
Fri. Mar 23, 2012 - 03:21 PM
wdt_disable() crashing code? (atmega1281)
Hi I have just upgraded to AVR studio 5.1 (woops?), everything compiles and works as expected however the code I have been running (for years now) now seems to crash almost...
Fri. Feb 24, 2012 - 11:44 AM
AVR Studio 5 EESAVE keeps clearing
Hi Iv just updated my version of AVR studio 5 to version: 5.0.1223 and whenever I program/debug my ATmega1281 it clears the EESAVE fuse (just this fuse) and proceeds to obliterate...
Fri. Jan 20, 2012 - 05:14 PM
Simple way to read fuse bits
Hi I'm looking for a dead simple way (or trick) to read the fuse bits on a mega1281 programmatically at start-up. There are a number of settings (that come as default on new...
Thu. Nov 3, 2011 - 10:19 AM
RF230 Filter config
Hi I spent a while reading up on and implementing the RF230 filtering functionality. I have the device running in the RX_AACK_ON state and have set the following (before entering...
Tue. Aug 16, 2011 - 10:38 AM
Sneaky Compiler Issue?
Hi I'm using a simple checksum to validate a incoming UART packet. The checksum is of type uint8_t, as the bytes come in I add them up: WorkingByte = UDR1; ckhSum += WorkingByte...
Wed. Jan 26, 2011 - 10:33 AM
1281 Write to Flash
Hi Everyone I am trying to write a single page of data to the flash memory on my mega 1281. I have the bootsz fuse set to 512 (4 128 word pages). I have: LDFLAGS += -Wl,--section-...
Sat. Jan 15, 2011 - 12:52 AM
Mega1281 Wakeup from sleep
Hi Everyone I am trying to get my mega1281 to wake up from sleep using the asynchronous Timer/Counter2. I can sleep the 1281 sleep just fine, however once the device is sleeping...
Mon. Dec 20, 2010 - 01:32 PM
External pin change interrupt?
I am sure I me being very stupid here, but I cant seem to get an ISR to fire for an external pin change on my mega 1281. Pin goes from low to high on interrupt (I can see it...
Thu. Oct 14, 2010 - 08:49 AM

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