Discussion Title | Created date |
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Writing ISR in assembly. AVR-GCC 5.4.0 Greetings - I want to write the entire ISR in assembly (rest of my program is in C) but having trouble with the static local variables inside ISR. For example... |
Wednesday, 27 April 2022 - 21:11 |
Can anyone find this slide switch? Hi, I am looking for this slide switch replacement, it seems to be SP3T type, but not sure. I can hookup some other switch by adding some wires but I am particularly... |
Wednesday, 23 March 2022 - 15:12 |
What is underneath ATmega324PB (VQFN/QFN)? Hello everyone, I am making a board for ATmega324PB which is in TQFP lead package. Due to shortages and stuff I want to make sure that my PCB design can take ATmega324PB... |
Friday, 8 October 2021 - 14:24 |
megaAVR mixing assembly with [gcc] C language, confusion (saving & restoring registers). Hello everyone, I am having trouble understanding this concept. I want to sprinkle some assembly at places in C program where it is slow/can be improved and my preferred... |
Friday, 1 October 2021 - 09:35 |
Need magnification lens for soldering like this one. Hi everyone, Recently I spotted a magnifier lens/stand for soldering purposes. I found this on a 10 year video from eevblog here. Until I can afford a nice... |
Sunday, 5 September 2021 - 16:49 |
How to choose right capacitor value for crystal. Hi freaks, I am a bit puzzled on how to choose the right capacitor value. After googling and cramming as much info as I can, at last I found this piece of... |
Saturday, 21 August 2021 - 21:36 |
Wake avr from power save with signal on normal IO pins? ATmega324PB Hi everyone, I am using ATmega324PB and the pins are configured this way. All the pins of PORTA , PORTB, PORTC, PORTD are defined as output and leaving me with PORTE, which... |
Friday, 20 August 2021 - 04:34 |
[C] How to find size of an array but using only the base address of the array? Hi everyone, Need little help on this one. I have a utility on PC that generates some arrays for me, and I put those arrays on megaAVR's program memory. Now the... |
Monday, 9 August 2021 - 22:02 |
Can't update TCNT1 while debugging in simulator. I have this problem, not sure if this affects me or everyone. I am using ATmega324PB. Every time when I try to debug something in atmel microchip studio simulator with device... |
Thursday, 5 August 2021 - 08:05 |
ATmega324PB, How to do power trace layout for two VCC pins on PCB? Hi everyone, I have one ATmega324PB on PCB in TQFP package, it has two VCC pins to which I have to route +5V trace. Trouble is that they both are on the opposite side of each... |
Thursday, 17 June 2021 - 11:24 |
[C] Absolute fastest way to zero/clear a large array but also save some program space by using ST instead of STS Hello everyone. Here is something that I found on one of my programming endeavor's. There was a task where I had to clear/fill an array with zero's as fast as... |
Friday, 21 May 2021 - 15:07 |
Is it important to erase all program memory before flashing new application from bootloader? Hi, I am on my path to write my first bootloader. Q.1 One question is do you erase all the flash memory before writing? Or just enough pages which the... |
Saturday, 1 May 2021 - 02:36 |