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MOSFET - AVR output isolation from drain/source volts ???
Does a mosfet offer any isolation to the output pin of a microcontroller.   I'm going to make a simple lead/acid battery float charger (sick of them dying when in storage)....
Sat. May 13, 2017 - 10:46 PM
Tutorials defining variables instead of using #define.
I've came across a tutorial or two that does something like the following. They define an int variable instead of using a #define macro, e.g. :   int CHARGER_OUTPUT 12 //...
Sat. May 13, 2017 - 01:10 AM
Comments INSIDE statements - valid ??
While Googling about multi-line C statements I came across comments inside a statement and was wondering if that is valid coding. I Googled specifically for this but didn't...
Fri. Apr 14, 2017 - 11:41 PM
Embedded C and static variable auto initialisation to zero
Taken from the Codevision compiler manual: If not specifically initialised, static variables are automatically set to 0 at program startup.   However, Googling about C and...
Sun. Mar 19, 2017 - 01:30 AM
Assembler macros - looking for info on what this means
I'm going through the assembly code generated by my Codevision compiler, and I'm getting a bit stuck on the following. I've spent some time Googling and just can't find any...
Sat. Mar 18, 2017 - 04:58 AM
Why not disable appropriate interrupt(s) instead of CLI
Hope you all had a good Christmas.   Been doing a lot of studying on atomicity, and as a sidenote it's really giving me an appreciation of why learning some assembler is very...
Sun. Dec 25, 2016 - 10:16 AM
JUST A WORD OF THANKS
This morning I'm supposed to be fixing my trailer electric brakes after I left the manual brake on an towed the trailer for an hour and a quarter.   However I got itchy to...
Sat. Dec 3, 2016 - 12:10 AM
USART Tx - How long for UDR to pass byte to shift register ???
Couldn't find any info on this. Taken from the ATMEGA328P data sheet:   A data transmission is initiated by loading the transmit buffer with the data to be transmitted. The...
Sat. Nov 19, 2016 - 09:06 AM
Volatile for successful debug, then remove afterwards ???
I have an interesting question (to me at least) about using volatile to prevent variables being optimised away. This is for the purpose of successful debugging / single stepping,...
Sun. Nov 13, 2016 - 09:41 PM
Solved: Trying Imagecraft and can't even do a simple build
I'm getting close to buying Codevision but thought I'd try the demo of Imagecraft first.   It's very early days but I don't find it intuitive at the moment. This is what I...
Sun. Nov 13, 2016 - 04:23 AM
ATMEL STUDIO 7 DOES NOT RECOGNISE "SREG"
I don't know if I can't see the forest for the trees, but I can't figure out what's going on here. Trying to save the Status Register:   uint8_t SREG_TEMP_STORE = SREG;...
Tue. Jul 19, 2016 - 05:56 AM
Run times - C on AVR, and C#/NET on PC
Bit of an odd one here.   After my initial start on Arduino and relatively quickly going to AVR and C, I just loved Atmel Studio and debugging. I love the way I can see how...
Fri. Jul 8, 2016 - 11:00 PM

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