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han hoang

assignment 5

[5] :: make a efe micro-controller ::

in this assignment, we were asked to use the vynil cutter to cut copper sheets in order to make a "flexible" micro-controller.

:: using eagle ::

 
first, using eagle layout propram, we were asked to manipulate the configuration 
within the design. the modification that i made was switching the LED 
with the sensor fromm PB1 to PB4 in order to use PWM (pulse width 
modulation) to manipulate the intensity and gradient levels of the LED.

- using the vinyl cutter -

 

cat han_efe2_vinyl.rml > /dev/ttyS0



after weeding and stuffin - this is the result -
the process proved to be quite difficult, therefore i was very
skeptical of my own work. in order to know if the board that i 
modified work or not, i decided to make a duplicate using the modela

:: using the modela ::

 

cat han_efe2_modela.rml > /dev/ttyS0

 

soldering and stuffin the board - this is the result

- coding -



after several iterations of changing the b value [.equ b = 23 ; OSCCAL 0xff, 5V] from 10 to 80, i still could not find a suitable value. 

open cygwin

cd /cygdrive/c/Documents and Settings/hoang/My Documents/hello/hello_downloads/uisp-20040311

for uisp:
uisp -dlpt=0x03BC -dprog=dapa -dvoltage=5 -dt_sck=50 --erase --upload if=../hello.hex

for avra:
cd /cygdrive/c/Documents and Settings/hoang/My Documents/hello/hello_downloads/

./avra hello.asm

for python:
cd /cygdrive/c/Documents and Settings/hoang/My Documents/hello/hello_downloads/

/cygdrive/c/Python23/python.exe rx.py