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Static variable init inside ISR - split from LDS thread
//Here every 50ms static uint8_t u8_100msCounter = 0; //100ms tick if (u8_100msCounter) u8_100msCounter--;I may be wrong here, but when will this ever run? ...
Saturday, 15 April 2017 - 16:31
Harmonic frequencies
I sometimes play with simple medium wave receivers for my grandson. As there is a very weak signal in our flat, I recently made a simple signal generator with Avr. It produces a...
Saturday, 13 February 2016 - 09:01
Arduino-PC communication
Hi, I have a question about Arduino (with which I have no experience).   Suppose I want to use "Dccduino UNO R3 ATmega328" without Arduino IDE. I can write and compile the...
Friday, 22 May 2015 - 20:15
AvrOspII + fusebits
Hi all, I have recommended AvrOspII programmer software to a friend of mine and now he has reported a strange error. In "Fuse Bits" option the main textbox is empty (see attached...
Saturday, 19 March 2011 - 11:21
Master SPI on Mega88 not working
Hi all, I am testing SPI master on my experimental board with this code //Avrstudio 4.14.589 //Winavr 20071221 //f_osc=8MHz #include #include #define...
Wednesday, 10 February 2010 - 09:07
Local array problem
Hi, I have a theoretical question. I declare an initialised local array in main() and then display all bytes on Lcd. // Avrstudio 4.14.589 // Winavr 20071221 // Attiny2313 // 1...
Thursday, 17 September 2009 - 08:58
AVR910 and programming speed
Hi, I have made a AVR910 programmer (hw) by Klaus Leidinger http://www.klaus-leidinger.de/mp/Mikrocontroller/AVR-Prog/AVR-Programmer.html I have tested it with Avr-OspII, Avrdude...
Tuesday, 28 July 2009 - 15:14
Avrdude and Megabootloader
Hi, I use Mega88 with Megabootloader. With Avr-Osp II all works well. Now I test Avrdude without a succes. I try to read flash. I see no errors in Avrdude report, but in the file...
Monday, 25 May 2009 - 16:16
Error in .lss file?
Hi, I use Winavr + Avrstudio My program compiled without warning and works well. But in .lss file I found line "brne .+92". Relative branch should be max +64. What is wrong...
Tuesday, 21 October 2008 - 08:30
DC amplifier with opamp LM358 problem
Hi, I need a simple DC amplifier with gain = 10 input voltage = 1 to 250 mV. I have tested opamp LM358, but only one of my 3 pieces has linear relation between input voltage and...
Monday, 2 June 2008 - 07:44
XDIV and UART problem
Atmega128 Crystal 16MHz Avrstudio + Winavr When using 16 MHz clock, I send bytes to PC succesfully. But as soon as I divide clock in XDIV I get all zeroes in the terminal. What is...
Tuesday, 11 March 2008 - 14:36
How to get a constant from C to Asm
Hello, I have a constant X defined in main file. I cannot find how to use it in assembler. /*** file main.c ***/ #define X 120 /*** file asm1.s ***/ .func foo foo:...
Friday, 25 January 2008 - 07:51

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