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Proteus ARES auto-placer
Hello, We are trying the Proteus ARES auto-placer. It works fine, but it puts all the components in one layer only. Is it possible to tell ARES to place the components in both...
Tuesday, 4 January 2011 - 10:55
CMOS Input Pad
The specification of a chip says that a pin is a "Digital Output, CMOS Input Pad". So that pin is an output pin, meaning that the chip can put a HIGH or a LOW voltage at that pin...
Thursday, 30 December 2010 - 21:50
RAM memory usage
I have an ATmega328P, which has 2Kb RAM memory. My current program seems to be at the very limit of the RAM memory; I see that by just declaring one buffer a bit longer, then the...
Thursday, 30 December 2010 - 18:36
strange pin behaviour
I have a strange behaviour. This works fine on an ATmega328P. void setup() { Serial.begin(115000); Serial.println("test1"); pinMode(10, OUTPUT); digitalWrite(10, 0);...
Tuesday, 19 October 2010 - 00:25
avoid copying an array of const data to the RAM
Hello, The ATmega328 has 32 KBytes of Flash memory, and 2 KBytes of RAM (and 1 KByte of EEPROM). I have a program with contains 8000 bytes of const data. I have the data defined...
Tuesday, 29 June 2010 - 13:42
Arduino vs avr-gcc
Hello, I have used a bit of Arduino and avr-gcc (and related tools), and both look fine to me. Now I am starting a project making use of the SPI, still a simple project. I'd like...
Tuesday, 29 June 2010 - 06:11
Emulate SPI EEPROM on a ATmega328
Hello, For debugging purposes, I need to emulate a SPI EEPROM, such as 25LC640A, using an ATmega328 (in avr-gcc or Arduino). Do you know if this has already been done? Best...
Monday, 28 June 2010 - 21:00
filter stereo audio
Hello, I need to take an audio input (coming from an audio jack), apply a IIR filter and output the audio to a headset. The input needs to be sampled at 44kHz, 16 bits, stereo....
Tuesday, 15 June 2010 - 08:00