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avr-gcc interupt vectors for atmega16u2 , atmega8u2 , atmega32u2
Hello gents,    I am working on bringing up a project on a new board that is using an atmega16u2. I am using avr-gcc as my tool chain. I can get basic code to compile...
Friday, 24 March 2017 - 20:30
Booting SAM9G25
Hello, I am working on a project that is targeting SAM9G25. I am "leading" the hardware effort. (every one else took a step back :p) I'm much more comfortable working with your...
Monday, 13 June 2016 - 22:32
converting int64_t to string?
Hello,    Another dumb question, is there a function like ltoa() to convert int64_t into a string buffer? As I figure it ltoa() will work for int32_t s. I am using avr-...
Tuesday, 9 February 2016 - 00:51
Atmega 48, No clock from SPI Master
Well guys I am stumped. I have (err had) an atmega48(spi master) retrieving data from a MAX6675 thermocouple ADC(SPI Slave). My hardware also connects to a usb > serial chip....
Saturday, 8 August 2015 - 21:24
Reading AD7799 from an Atmega SPI Master
Hello Gentleman, I am trying to read a AD7799 ADC with a Atmenga48. At this point I'm trying to read the on chip registers and they do not match the expected values. Hardware...
Wednesday, 13 June 2012 - 22:46
avrdude and stk500. SOLVED
Hello Gentleman. I have developed a problem where I can not connect to my stk500 using avrdude. The host is an Apple mac book pro. I connect to the stk through a keyspan...
Monday, 14 May 2012 - 18:08
ready made load cell/ wheatstone bridge preamp?
Hello, I need to read the output of a load cell. I know h can build a driver and preamp out of op amps but it seems to me that there should be a module or chip out in the...
Tuesday, 17 April 2012 - 20:57
"go to" 2.048 avref adc voltage refrance
Hello Gents, I am looking at putting together a pcb/BOM for my first real project. Currently I have it working on my stk500. Basically it is a temperature and automation...
Monday, 26 September 2011 - 16:33
mac os x 10.7.1 avr gcc package?
hello , original I started out using crosspack that is now out of date. two weeks ago I tried to update libc but there were a number of problems with the other libraries that I...
Wednesday, 24 August 2011 - 03:10
Interrupt driven USARTs with ring buffers
Hello, Thank you to all have have been helping me with my mini projects. Im starting to build blocks that will go into the real application. The final app fits in to the...
Thursday, 4 August 2011 - 00:46
A nother Hitachi HD44780 controller, 8 bit mode
Hello, I'm batting with my old nemesis. the lcd module. Its a surplus 24x2 module with a Hitachi HD44780 controller. At this point I think the controller is getting...
Wednesday, 27 July 2011 - 18:30
problem with simple button/led program , no0b.
Hello, I'm taking my first steps with the avr and I am have a problem I can't quite get my head around. My dev kit(STK500) has 8 led (only using first 4) and 8 push buttons. I...
Friday, 22 July 2011 - 00:27