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LUFA GenericHID callbacks question
The device is an atemga16u2, which is ram limited at 512 bytes. I keep my report size at 32 bytes. In my avr application, there is a 200 byte lookup table stored in eeprom. I need...
Monday, 19 May 2014 - 05:27
LUFA ring buffer init problem
I have an atmega16u2 project using LUFA for HID. I added a serial device and decided to use LUFA lightwight ring buffer to manage serial stream. But I started getting "USB device...
Tuesday, 6 May 2014 - 06:06
LUFA and Raspberry Pi
Hello. I searched and couldnt find any projects using LUFA on an 8-bit AVR attached to a Raspberry Pi. I have several atmega32u4 using LUFA HID and would like to connect them to a...
Thursday, 15 August 2013 - 21:38
LUFA Endpoint_ConfigureEndpoint double check
Going from 111009 to 120730, on a GenericHID style project. In the 120730 Endpoint_ConfigureEndpoint, for bank size param, does 1= single bank, 2= doublebank? For the endpoint...
Thursday, 7 February 2013 - 18:00
startup code reads SP then subtracts 0x40?
I'm looking at the disassembled startup code for C code compiled for an atmega32u4, using AS4. For some reason, the SPH and SPL are read, then decremented by 0x40 and then written...
Friday, 18 January 2013 - 07:41
AVR One! AS6 & sei cli
Finally got around to trying the AVR ONE! and switch to AS6 (from 4). I made a simple program for an Atmega32u4. However, most of the time when debugging, stepping thru, etc, I...
Wednesday, 16 January 2013 - 20:26
atmega8u2 come with DFU loaded?
Does anyone know if the atmega8u2 comes from the factory with the DFU loaded? I'm having problems witha new design, cant seem to connect using FLIP. I found some threads on here...
Sunday, 30 December 2012 - 07:16
ISR with no attributes
"Introduces an interrupt handler function (interrupt service routine) that runs with global interrupts initially disabled by default with no attributes specified." For example,...
Friday, 28 December 2012 - 17:06
manual clearing of INT flags
On an atmega32u4, I need to manually clear the OCF1A and OCF1B flags before enabling their respective interrupts. However, since writing a '1' clears the flag, if I do something...
Sunday, 5 August 2012 - 05:44
off in the weeds
I cant figure out whats causing my program to hang. Seems to be about 30 seconds into execution, not that helps much, but it means things are clipping along fine, then everything...
Saturday, 7 April 2012 - 04:44
speed up division
hello, i've been trying to figure out how to speed up the time to calc: index = 103680/timer1 on an atmega8. the 'timer1' is a 16-bit timer count (ranges from 0x0400 to 0xffff)...
Tuesday, 22 November 2011 - 04:02