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ATmega1284 silicon errors?[solved fast crystal needs CKSEL3]
Hi, I'm working on a project where I use m16, m324 and m644. Our customer bought a lot (ca 5000) atmega1284(not P) and of course wants us to use them. The issue is that code that...
Tuesday, 8 May 2012 - 15:15
Single wire multi UART communication
Hi! I'm designing a device that uses three m8:s that communicate over a single wire using UARTs. By only enabling the UART outputs (TXEN) when actually transmitting anything all...
Friday, 10 October 2008 - 13:06
Anticheat circuit?
I have a device that gets its power from a main circuit. When the device is connected the MCU has to go into special mode to use it. This could be done with a simple switch, but...
Monday, 7 June 2004 - 21:25
Clearing pending interrupts
If an interrupt is requested while inside another interrupthandler and the interrupt is disabled at eh moment, how to prevent it from triggering as soon as the interrupt is...
Wednesday, 2 June 2004 - 07:24
1800Hz digital filter
I'm making lasertagstyle IR-guns for playing with my friends. The gun sends a 38kHz modulated signal to the receiver which demodulates it. Problem is that normal it reacts also on...
Tuesday, 25 May 2004 - 20:23
Default state of pull-ups?
Does anyone know the state of the internal pull-ups when in parallellprogramming mode? Can XTAL1 be pulled down by a resistor and pulled high by a switch connected to Vcc? Or will...
Thursday, 22 April 2004 - 22:59
Simple manual Atmega8 parallellprogrammer
Hi! Like everybody else I've set the fusebits wrong and can't use ISP anymore. Since you only want to change those and, if the they are set, the lockbits, it might be possible to...
Monday, 19 April 2004 - 13:11