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Discussion Title Created date
when to use pullups?re
I was just wondering if a given pin, configured as input, and used as either a UART Rx line, external INT line, etc... should have pullups enabled or not? Or does it matter? I...
Sunday, 10 June 2007 - 18:12
Does capacitor size matter?
When you find that capacitors with the same value of capacitance come in packages ranging from the tiny SMT 0402 to those large radial packages, is there a difference? The reason...
Tuesday, 5 June 2007 - 04:50
Using JTD Bit
Could someone please help me with using the JTD bit to disable JTAG and be able to use all of the PORTC pins as general purpose I/O during run-time use on the ATMega644? I have...
Saturday, 2 June 2007 - 20:50
ATMega644 Startup Question
I just got an ATMega644 (DIP version) to experiment with making my first standalone microcontroller project... and as a first experiment just wanted to try programming it using my...
Friday, 1 June 2007 - 05:39
AVR Vs Analog Devices
I was searching around the internet for microcontrollers that could do higher resolution A/D conversions than 10-bit & came upon the Analog Devices family of microcontrollers...
Tuesday, 22 May 2007 - 22:47
Any AVRs with > 10-bit ADCs?
I searched through all the devices and they all seem to have only 10-bit ADC's. I was just wondering if I was missing anything... Do any exist with resolution greater than 10-...
Tuesday, 15 May 2007 - 19:39
atoi quirks?
I've been encountering a lot of problems trying to do serial communication with a digital compass device, and have noticed after experimenting for hours that if I run "atoi" on...
Sunday, 13 May 2007 - 18:35
uart / printf() interference?
I've noticed while trying to debug my code using a lot of printf() statements that the more printf() statements I put in seems to adversely affect the performance of my code. And...
Sunday, 13 May 2007 - 03:30
Differential ADC Question
I have a voltage to sample that will only range between about 2.5 to 3.5 volts total span. So I thought that rather than using a single ended ADC on either a 0-5V range or 0-2.56V...
Monday, 7 May 2007 - 04:16
ATMega1280 UART & Debug Problems
I've been trying to get a new ATMega1280 development board to do anything properly and am about at the point of throwing in the towel... For starters, I purchased a new Atmel JTAG...
Saturday, 5 May 2007 - 23:35
Codevision / LCD Question
I just wanted to ask if the built-in LCD scripts with Codevision will work for an LCD that has 8 data bits? From what I read it sounded like it only addresses 4 data bits on the...
Saturday, 5 May 2007 - 03:37
ATMega 1280 Startup / Interface Problems...
I recently purchased an ATMega1280 development board... Purchased a new Atmel JTAG MKII programmer after discovering that my ICE Cube was not compatible with the 1280. After...
Tuesday, 1 May 2007 - 23:12

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