Post Created date
ADC Atmega Input
Yes it's probably set up wrong. What I've found is that if a pin isn't set up as an analog input then the input resistance is messed up. Here's the configuration I use for ADC...
Sunday, 24 February 2008 - 23:53
Which is a better programmer?
Both claim STK500 compatibility (and therefore the ability to use it in AVRStudio) but only the Tiny has instructions for it. Additionally you can buy the kit for the Tiny and...
Tuesday, 5 February 2008 - 14:50
Strange Behaviour
Most likely it's a timing issue with stepping vs. free running or an error in logic. In general that code is messy and difficult to understand and parse. You should add brackets...
Tuesday, 5 February 2008 - 14:41
DC-DC step up?
If your supply is around 9V it's probably possible to run the motor directly from it if it can source the current you need. You can usually run motors with less voltage than they...
Friday, 25 January 2008 - 17:45
ECM database software
I'm assuming ECM - Engine Control Module
Tuesday, 22 January 2008 - 19:36
jbrain: Yes, it was my assumption that the battery would be 3.3V or so. Even if it was the same voltage as your main source the diode would still prevent it from drawing power....
Tuesday, 22 January 2008 - 19:25
I think I understand your question. This is the sequence of events I understand: Device is fully powered from say a DC wall adapter User unplugs wall adapter, power goes away AVR...
Wednesday, 16 January 2008 - 20:52
Serial communication with 2 devices?
tubecut is correct - if you want to communicate between two micros and also have debug information come out of a serial port then the simplest method is to have two serial ports...
Monday, 14 January 2008 - 02:54
Rising edge interrupts drowning out Timer interrupts?
riceman0, Everyone else's answers are correct but I just wanted to chime in and say that your analysis of why it wasn't working is pretty much correct - the AVR is basically...
Monday, 7 January 2008 - 19:02
AT90CAN connected to a car
I was never in particular a fan of the stk500 approach. When I developed with the AT90CAN128 I simply ordered a DVK90CAN128 development board and a JTAG ICE MkII. The JTAG is a...
Thursday, 20 December 2007 - 04:40