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Discussion Title Created date
Any neat sign extension tricks for 10-bit to 16-bit?
Hi all, I'd like to know neat tricks for converting 10-bit offset binary value with 3-bit scaling value to 16-bit signed integer. Imagine you receive 13 actual bits from a device...
Tuesday, 15 February 2011 - 20:30
How to do something with PAL16L8 or the like?
It seems I can upgrade my vingate sound card to use CMS (Philips SAAxxxx) music chips, but it requires a PAL chip for controlling the chips. As some versions of the card do not...
Friday, 26 November 2010 - 13:03
50ohm scope input, how to terminate to 3V3?
Hi all, I am trying to do some measurements to a high speed current signal that needs to be terminated to positive termination voltage. Now a scope input has 50 ohm termination,...
Thursday, 8 July 2010 - 07:52
Suggest external memory in 32k-128k range?
Hi, I need some external memory in 32k-128k byte range. Currently I used 64kbyte I2C EEPROM, from the non-mentionable manufacturer, but I would like to see something cheaper and...
Tuesday, 8 June 2010 - 14:26
I2C 3mA current source instead of pull-up resistors?
Has anyone used 3mA current sources on I2C bus instead of pull-up resistors? Any special chips or nifty transistor circuits that are suitable for this? Point being getting the 3mA...
Monday, 19 October 2009 - 14:24
Software I2C slave using GPIO pins, or something else?
So it seems I have to communicate between two micros somehow, but the micros only have GPIO pins left, no interrupt pins, UART, SPI or TWI. The slave micro can use all it's time...
Monday, 17 August 2009 - 09:11
Switching from a crystal to a resonator, actual experiences?
I know this has been discussed many times before, but this time from a different perspective. I think I have never used an AVR with a ceramic resonator, only with a crystal. Now I...
Thursday, 26 March 2009 - 13:16
PLL advice
Hi, I have been thinking about converting vingage FM synth chip (YMF262 / OPL3) audio bus to modern I2S bus to ultimately get S/PDIF output from the chip. A hobby project. The...
Friday, 15 August 2008 - 09:44
Quick and exotic SPI slave specific question
Hi, (does this belong here or off-topic?) I have been using the hardware SPI in AVRs as master and slave in several projects, and also written several different software SPI...
Tuesday, 3 June 2008 - 07:35
In-System Programming "bridge" software
Ok, I have this really weird idea and I would like to share it with you guys if this is something generally considered as useful. This might belong to the AVR Studio topic, so...
Monday, 10 March 2008 - 21:28
Hardware Abstraction Layer (HAL) using #define question
Hi, I have been fiddling around with an idea I got from a forum post here (can't find it right now). Basically I am thinking a HAL built with defines, so that manipulating IO port...
Monday, 23 July 2007 - 18:38
How to make AVR C code run on a PC with help of macros?
Hi, I have many times thought about running the exact same code on a PC than I would run on an AVR, with a help of macros and stuff. Usually this is not a problem, but as the code...
Friday, 15 June 2007 - 15:23

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