Fab Academy 2015 - Name Surname

embedded programming

individual assignment :Read a microcontroller data sheet.

the most important part of the datasheet to program the board is the pin ports and the correspondence of ports with arduino. I consider this image more clear, since it is also the one that is used more abundantly in fabacademy

UPDATE: fuses

Members of the AVR family may have one or more Fuse Bytes. How many there are, and what they do, depends on the specific microcontroller
Reading the datasheet for AVR micros, with a "1" means that it is not programmed while a "0" is considered to be programmed
following the tutorial ( link below) I used avr fuse calculator just to know more about fuses
avr fuse calculator
which shows this default configuration

I check too some others fuses configuration tools like
eleccelerator

UPDATE:clock

as I read in datasheet the chip contains four different clocks:
the CPU Clock,
the I/O Clock,
the Flash Clock
and the ADC Clock.
The internal oscillator is the default clock and it runs at 8mHz
External Clock means that a square wave is being input into the CLOCK-IN pin. This is pretty rare unless you have a clock generating chip. (from the link below)
Internal Clock means that theres a little oscillator inside the chip, its not very precise but good for most projects that dont have fine timing issues.(from the link below)
in this case we use External Crystal (oscillator)
we use a clock rate (20MHz) and that won't drift with the temperature

as I read in the datasheet the conections of an external clock should be like this

tutorial where I found information about fuses and external clocks

individual assignment : Program your board to do something

UPDATE:FTDI

ftdi connection can be used as cable or driver.
As seen in the pictures I use driver type.
The FTDI DRIVER is a Série-USB (TTL) converter that allows you to connect TTL devices via USB.
The driver is configured to operate at 5V.
The available pins are: RTS, RX, TX, 5V, CTS, GND (RTS is green and GND is black).