Hi friends, I'm working with Atmega128 microcontroller on MAVRIC-IIB board. I have loaded AvrX Operative System in the micro and I´m trying to comunicate the...
There are two serial examples. One buffered and one simple. The simple one blocks when the USART is full. The buffered one can accept up to the buffer size...
Thank you very much Larry!!! I will try in that way. See you. It's amazing. I have been in Seattle studing my last year of engineering. I was an exchange...
Hi, thanks for the great OS. I'm really having fun learning it and using it. I've somehow caused some strange behavior on one of my threads and have been...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the avrx group. File :...
avrx@yahoogroups.com
Apr 13, 2006 9:29 pm
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I updated the generalized serial I/O sample code and placed a .zip file out in the files section. The code uses the new FILE syntax which is more space ...
I have just started using AVRX - great stuff. I have been developing and testing on the run and have now come across a problem that has me 'stumped'. I am...
Hello all I have a need for short delays while using AvrX (~ 100us). Usually I would do this with a for loop and some nops. If I use OPT = s (as specified),...
This isn't a lot of information to work with. Do the tasks ever block and allow another task to run? The entire premise of AvrX is that task run until...
Hi I'm not sure if this helps you to solve your problem, but I was once running into a problem when using other optimisation than 's'. The problem was, AvrX is...
Thanks Larry. Also for AvrX. I am slowly getting the hang of things and it is a joy to not have to worry (too much) about the housekeeping. Regards Ray ... ...
has anyone any code to read a servo channel from a (futaba) reciever and output PWM , idealy for more than one channel , similar to using as a speed control ...
I have just experienced a similar problem. If I changed the task priorities symptoms also changed. Eventually I tracked it down to using the same timers in...
Hey everyone, I am an AVR newbie using the Atmega 8 on a linux operating system. Although I have found a terminal program, it only supports the Atmega 32 and...
Hey everyone, I am using an Atmega 8 chip and had made a program on C that would open a file and take the contents of the file as an array. After utilitzing ...
fdevopen is a dummy mechanism to associate a serial port with the stdio's buffered I/O system. The AVR libraries have no file system per se. There are projects...
I'm making some progress on a document listing some useful information about the monitor. I'll post it or give it out if people want to see the early version....
Dear Mr Larry first of all thanks for your kindness which is helping students my making your free AVRX RTOS free and open source, thanks again. the second...
... Hmm.. AvrX works only on AVR (hence the name :-) ). But the concept of RTOS works also for other microcontrollers. In my opinion it makes no sense porting...
Hi, i need to check if there is a message in the queue but without blocking the thread. What i am currently doing is: - send a dummy message - wait for...
Hi, everyone: I am a newer, I am very interested in AVRX, My chip is ATmega64, I want to know some more details to compile the files and download them to my...
Thanks for the response, I found the problem, but it raises another question. The problem was that one of the tasks was in a tight loop looking for a bit it...
If a task blocks, that is becomes waiting for something, it goes to the end of the queue of like priority tasks, thus implementing a sort of round-robin ...
Thanks Larry, that explains it. I always thought a timer interrupt would reschedule just like the various methods of blocking. - Lesson: Don't assume...
I'd like to expand a bit on this, because what i'm looking for is a rtos which provides true preemption, that is, no need for an endlessly looping task to...
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