I have now installed the AVR tools and I am trying to program the UNO(first time in my life working with an ATMEGA)
as you suggested Ben I am using Xloader to program the hex file that is working however from FC I cannot program as FC is looking it seems for AVR programmer(AVRdude not sure) ,where do I download the programmer SW that FC is looking for ,I looked for Avrdude but find a lot of things I will not trust(russian sites

Then Creating a simple chart that toggle led at pin13 on the UNO it is working fine but the timing is out by factor 3 (set 10mSec delay actually 30mSec9,Please help me to setup the UNO correctly Ben ,as the I2C debugging I want to do at the end of knowing the UNO is running correctly wili not work now.
I have the impression the mcu is running on a internal 4Mhz Clock ,can this be I do not know this micro
(It is a chinease clone Wavgat they are actually a good company for these clone stuff
