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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
How to tell complier/linker to not generate code beyond this memory address?
Hi everyone,   I have read on the forum many times to build the application and bootloader in separate projects. Following that approach I realized if (application)...
Thursday, 29 April 2021 - 05:18
FTDI RS232 breakout board connection with AVR
Hi everyone,   I am having trouble wrapping my brain around this. I have this generic FT232RL USB to UART Serial Adapter. Want to test my bootloader for loading firmware but...
Saturday, 24 April 2021 - 20:39

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