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IAR Debug/Release
In menu 'Project', select 'Edit Configurations'. In the following dialog select the configuration 'debug' (where you made all your settings that you want to copy) and select 'New...
Wednesday, 16 January 2008 - 15:02
Combining two ADCs for 11-bit resolution
Quote:O&D will work well as long the signal stays nearly constant for the 4 samples, but if it changes then the result will be off. This is not quite true. If the signal...
Sunday, 9 December 2007 - 12:06
Current draw of ATMega48p
Quote:BTW, where did you get your circuit for borrowing power from the 4-20mA? I looked into that a few yers back and IIRC I did not find much. My conclusion was that it is either...
Monday, 3 December 2007 - 16:58
Current draw of ATMega48p
Running the chip at below 3V is not an option? Even with peripherals running and with a low quiescent voltage regulator it should be possible to get near 500-600uA at low supply...
Wednesday, 28 November 2007 - 16:15
internal vref is not precise?
Quote:If you have a well-regulated AVcc, say 5V, on most newer AVR models you can use AVcc as Vref and do a conversion on the internal reference to "calibrate". then you might...
Tuesday, 27 November 2007 - 15:24
internal vref is not precise?
Quote:Have you tested this device with ceramic capacitors over the wide temperature range? Yes, I always use 2u2 or 4u7 MLCC. But to be honest, I do not specify a certain...
Tuesday, 27 November 2007 - 14:02
internal vref is not precise?
You could also use a tightly toleranced voltage regulator (you need it anyway) and then use VCC as reference. An LP2980A has an initial tolerance of 0.5% and varies an additional...
Tuesday, 27 November 2007 - 11:36
Building a dot Matrix display.....
John, please lok at my comments after // while(1) { if (count == 65) // if count is 64 here count = 0; // program will jump else...
Monday, 27 August 2007 - 14:01
Building a dot Matrix display.....
Quote:Well the reason I have the the compare value in the if...else loops 64 and 7 are because that is the address of the null character.??? You are allowing the row and count...
Sunday, 26 August 2007 - 20:15
Building a dot Matrix display.....
Even without fully understanding your setup, there are some problems in your code: Your arrays have 64 and 8 entries, so your index should only run from 0..63 and 0..7...
Sunday, 26 August 2007 - 08:24
Simple digital filter
A simple and cheap (?, in large volumes down to ~$1.50) way to get a stable 5V supply from a USB port is using one of the many 1W 5V to 5V DC/DC-converters (with names like SIM1-...
Tuesday, 21 August 2007 - 07:27
Network of AVR:s?
Try microcanopen.com There is at least some free source code available with examples for an NXP and the Atmel T89C51CC01. BTW, it is very easy to combine any of the smaller AVRs...
Sunday, 19 August 2007 - 22:17

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