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Atmega128A timer0 Fast PWM mode not showing on debug is AS7
I'm configuring timer0 on an Atmega128a like so: TCCR0 |= ((1<<WGM01)|(1<<WGM00)); // Fast PWM TCCR0 |= (1<<COM01); // Set OC0 on compare match...
Sunday, 24 September 2017 - 20:13
ATtiny816 CPU data space question
I'm looking at the datasheet and on page 19 there is a memory map chart thing. Anyway it shows the CPU data space that starts with 64 I/O registers mapped between 0x0000 to 0x0035...
Friday, 1 September 2017 - 23:21
Silent switching of audio signals (revisited)
Some time ago I started a discussion about problems I was facing with audio switching. I never ended up finding a satisfactory solution and now I have tried a slightly different...
Friday, 25 August 2017 - 16:07
The proper way to add Arduino libraries to C++ projects in Studio 7
I'm trying to use an Arduino library for TFT driving in a "normal" C++ project. I've copied the files to my project and directory and added them. The library uses the Arduino SPI...
Saturday, 5 August 2017 - 18:01
Master SPI & Half duplex UART on ATtint861?
I have an application that will be using the ATtiny861, it is connected to serial SRAM over SPI, in addition there is a requirement to (only) receive messages via UART. The...
Thursday, 20 July 2017 - 23:38
ATtiny26 debugging?
This might be a silly question, however I don't see dW support in the datasheet. How does one debug the code on this chip?
Wednesday, 19 July 2017 - 10:36
Speeding up this SPI bit bang function in C?
Here is my implementation of SPI master in C, I have two banks so I handle CS select as well. I would be happy to hear suggestions to speed this up without going into asm....
Sunday, 16 July 2017 - 20:18
Can't enter programming mode after setting external Xtal
I have wrote and debug my code while running the internal RC. Now I want to test the UART so I set the fuses for the external Xtal (4MHz). Now the code keeps running but I can not...
Friday, 23 June 2017 - 12:22
How to include header & source files in a sub-dir?
I want to include header files and the related source files.   I've created a folder where the main.c is and dropped all the related files inside. Inside project properties,...
Friday, 16 June 2017 - 18:08
SRAM with multiplexed data & address lines?
I am looking for some external RAM I can hook up to an AVR using few lines as possible (less than 15). Seems like all the "new" stuff have dedicated pins for the different buses....
Wednesday, 26 April 2017 - 16:14
1:1 transformer hookup & termination
I want to use a couple of 1:1 isolation transformers in order to enable an audio signal to be routed to one of two audio amps or both of them together and eliminate ground loops....
Friday, 3 March 2017 - 23:32
How to tell if DFLL is working?
I want to enable run-time calibration of the 2MHz clock. Since that clock is the default for the ATxmega64A3U it seem I only need to run the following code: OSC_CTRL |=...
Wednesday, 22 February 2017 - 22:12