EE 476: Homework 4
Due At the start of your 4th lab period
Read all of Lab 4. In the lab description there are two different timing schemes.
- For the simple DAC circuit shown in Lab 4, each port output pin can be
at Vcc=5 volts or at zero volts.
- Show that if the port output is 0x80 that the voltage going to the oscilloscope
equals 2.5 volts.
- Show that if the port output is 0x40 that the voltage going to the oscilloscope
equals 1.25 volts.
Show that the 16 table values given for a sine wave are correct to 8 bits.
- Write the code for lab 4.
Copyright Cornell University Jan 2000