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Discussion Title Created date
RS485 - receiving data
Hi guys, I've made my first board with a half-duplex RS485; ATmega164PA with MAX3483 as RS485 driver. The problem is, that when no driver on the bus is in transmit mode, the RI...
Friday, 4 March 2011 - 20:09
Effective gap length
Hello, Im trying to make a power inductor for use in a buck converter. Take a look at the following inductor design: My question is, what is the effective gap length for this...
Tuesday, 25 August 2009 - 09:39
MOSFET in buck converter
Hi guys! I'm really desperate here; no matter what I do, my buck converter just keeps burning my FETs. Here's the story; I have 230Vac input, then a bridge and a capacitor to get...
Monday, 10 August 2009 - 17:55
Will ATtiny26 work on 3V @ 4MHz ?
Hi guys, It's been a while, since I last did an AVR design, so I don't know how much has changed... I've got a few ATtiny26 (the non-L version) in front of me and I would like to...
Tuesday, 23 October 2007 - 19:01
Problems installing D2xx drivers
Hi, I'm trying to install the FTDI D2XX drivers on my Windows XP SP1. I've read about the problems; I've also used the FTXPRCVR program to change the PID of my device. I't works...
Friday, 2 July 2004 - 14:01
FTDI D2XX Driver
Hello! I have downloaded the D2XX driver from the FTDI site and now I would like to know, how to use them. Where and which files do I have to copy in order for my application to...
Sunday, 22 February 2004 - 21:19
Messuring variable current
Hi! I have an H-bridge driving a small brushed electrical motor ( 9V, 300mA ). The H-bridge has a shunt resistor for messuring the current. The H-bridge is "fed" by a PWM with the...
Friday, 23 January 2004 - 12:53
interfacing with lcds
Hey there! I've been coding in asm numerous small cpus, but lately i want to experiment with hardware as well. So i looked around and found the avr uC. And i thought... maybe we...
Thursday, 22 January 2004 - 03:48
Protocol recomodations
Hi! I need a communication protocol for communicating between PC and AVR via UART. I know that it would be the easiest to make my own up, but I would really like to implement one...
Sunday, 18 January 2004 - 19:34
attiny15 and SPIEN fuse
I've successfully programmed many attiny15 devices, but tonight I was setting up the fuses (I set the BODEN and 2.7V threshold) and accidently cleared the SPIEN fuse. I'm running...
Thursday, 15 January 2004 - 07:54
Step-Down algorithm
Hello friends, I have a problem in my hands for witch I do not have a proper solution. Here is the deal. I need a variable constant voltage source ( 8 - 15V, 2A ) to supply my...
Thursday, 8 January 2004 - 19:54
about malloc()
Hello to everyone and happy new year.Can somebody explain the usage of malloc(),calloc() ,__heap_start,__heap_end,__malloc_margin.I understand that the use is in sram memory for...
Tuesday, 6 January 2004 - 01:43

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