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Looking for the best OBD2 option with AVR.
The company I'm working for uses a 18f2580 pic + mcp2551 transceiver to talk to an OBD2. I'm left with decision to stay with PIC or go AVR. I'm not a huge PIC fan so I'm a bit...
Wednesday, 3 February 2016 - 19:38
avr studio driver issues
Read many threads on the matter here but nothing is helping. I also have installed avr studio on many systems without issues. I have a dell precision win7 pro system refusing to...
Tuesday, 2 February 2016 - 15:11
atmel studio 7, cant build my version 6 project
I figure I'd try this version 7 as 6 seemed to be buggy but I get errors on build.       Done executing task "RunCompilerTask" -- FAILED. Done building target...
Sunday, 25 October 2015 - 19:57
code space saving tricks.
I have noticed there are some tricks one can apply to save some code space, compiler options in make, using define where appropriate, inilne keywords, proper size data types, etc...
Friday, 31 July 2015 - 13:22
interpreting serial data from gravis.
Gravis made a PC game controller in the 90's that used the PC gameport. It sent a signal over the button lines to generate serial data. Gravis names this protocol GRIP (Gravis...
Wednesday, 22 July 2015 - 13:56
getting avr-gcc to 4.8.3 (trying to fix a bug with IRS)
I was writing pin change interrupt code and ran in to this   https://www.avrfreaks.net/forum/f...   I'm not sure how to tell what version of avr-gcc, if I'm using avr-...
Wednesday, 22 July 2015 - 02:36
help with ASM branching.
I need to branch based on the status of bits but I need to get the timing right. The problem is I need more then one line so sbrc is not going to work. I figure I could do what I...
Tuesday, 21 July 2015 - 03:57
Help with understanding the spi
I have some example code that sets the following bits.   SPCR = (1<<SPE)|(1<<MSTR)|(1<<SPR1)|(1<<SPR0)|(1<<DORD)|(1<<CPHA)|(1<<CPOL...
Wednesday, 1 July 2015 - 01:37
sending twos complement to a unsigned char.
From what I have read online you need to check the sign bit, then if negative invert and add 1. For positive it's good as it is. Though in working with bit logic not a day goes by...
Thursday, 18 June 2015 - 21:55
Verify that bootloader exists.
I flash a bootloader to an atmeaga328 with BOOTRST, and then load my firmware with a flash tool via USB. What I'm looking for is a way to verify (in code) that the boot loader...
Sunday, 14 June 2015 - 18:03
Help working with ADB (Apple Desktop Bus) protocal.
I have created an interface (host) for ADB peripherals. At this time I only have one device (game pad with mouse) and quite a bit of documentation on ADB.  I'm sending the...
Tuesday, 2 June 2015 - 22:27
using output_bit on an avr (serial communication?)
*** for anyone new to this post see post 22, as I'm returning to this post instead of making a new one***           I have a device in which I wish to...
Tuesday, 19 May 2015 - 01:10

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