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Discussion Title Created date
Ramtron - any experience?
~~ My buddy from the codvision@yahoo.com list wrote this and I was wondering if you have any comments on SPI EEPROM with AVR.~~ Sonos The unlimited read/write endurance is really...
Tuesday, 15 June 2004 - 00:34
Loading UCR1A during UDDR0 interrupt - a bad idea?
global: unsigned char data; //ISR for UDDR0 data = UDDR0; UCR1A = data; Is this a bad idea? Any comments greatly appreciated.
Saturday, 12 June 2004 - 22:12
UART debug options for serial device?
M128 @ 14.7456 MHz ISR for UDR0: data=UDRO; (data == 0x01) ? (++PORTB) : (PORTA = 0x00);; //toggle STK500 LEDs on PORTB with sync byte A serial device @ 9600 baud 75 data packets...
Friday, 11 June 2004 - 04:39
Clock Speed in human terms
As I was pondering a very nice waveform from a 14.7456 crystal with my scope set to 50 ns, it occured to me just how fantastic these AVR beasties are... For a M128, the datasheet...
Thursday, 10 June 2004 - 18:33
M128 and 9600 baud / best clock speed?
1. What is the difference between a positive baud rate error and a negative baud rate error? (i.e. 0.4% vs. -0.1%) 2. Why would one want a positive or negative baud rate error,...
Friday, 4 June 2004 - 14:11
Tristate on reset?
What does this mean (for bidirectional ports)?
Thursday, 3 June 2004 - 17:32
What is the best clock speed?
General question, but I cannot find a good discussion as to why someone would choose one clock speed over another, aside from faster code execution. But... speed is not everthing...
Thursday, 3 June 2004 - 11:58
Array size question
Am I correct that the following array will hold 10 minutes of data, with the incoming data stream of 75 bytes assigned per second? char array[4500] For a 128 device, should I put...
Friday, 28 May 2004 - 16:12
Bitwise question for UART
I have a 5 byte data packet delivered at 1/75 Hz from an external serial device. The first (sync) byte is 01. I want to determine what the 3rd byte is. Using interrupt driven UART...
Thursday, 27 May 2004 - 21:29
STK500 Power supply
Does the STK500 Power supply meet the requirements for this device, or should I filter it? Either way, what are the pros and cons of filtering the Vc with ferrite beads and...
Wednesday, 26 May 2004 - 17:05
DAC in assembler -> ANSI C?
anyone have this routine in C? https://www.avrfreaks.net/Tools/T... ;-------------------------------------------------------------- ; Author:Robotechnics Laboratories/Vasilios...
Thursday, 5 February 2004 - 23:48
ACCAVR on Win3.11
I have an old gateway laptop 486 with very little memory that I have not used for years, except some C programming. It has a grey scale small monitor and is really not more than...
Sunday, 1 February 2004 - 19:43