Step 1: Try to program the FabISP.
Use Atmel’s AVRISP to program the FabISP.
This tutorial helped a lot.
The first FabISP didn’t program at all (2 hours in..with Prashant’s help).
I tried stuffing and making one other FabISP. This one “took”
the programming but the computer couldn’t “identify” that the FabISP existed.
Lots of Error 1s. In other words, the new one also didn’t
work. So I’ll have to make another FabISP later.
First lesson: Test the FabISP before this lesson.
Step 2. When multiple FabISPs didn’t work, revert to completing the assignment.
Move to the echo board.
Attempt to program echo board with the FabISP. It didn’t work at first.
So I replaced: The resonator, the LED, took off the button and checked again.
It still didn’t work.
I remilled another Echo Board with
updated design. I realized I had reversed the LED flow in the original.
This time with Prashant’s advice, I added each piece
first: the micro controller, FTDI and programming head, afterwards, testing the
voltage along the way and whether it could programmed. I continued
to add parts and test voltage and programming along the way.
This tutorial that helped during Echo board programming.
Step 3. When first echo board doesn’t work, mill a new board. Try again.
Milled one more. This round: the resistor wasn’t properly soldered — so I desoldered that.
Type of resistor before LED needed to be changed to higher
resistance — 500 Ohms resistor; 100 Ohms resistor; 1k Ohms.
Finally it works!
