In this design review, you will show your complete populated PCB(s) and demonstrate the basic functionality of all of your systems by using basic device drivers. You will also present the complete characterization of your power supply.
All parts will be properly placed and soldered on your PCB(s).
You will demonstrate that all of your digital and analog hardware devices are "alive" by showing basic functionality. For digital devices, this means writing basic device drivers. For analog devices, this means showing correct basic operation.
Basic device drivers will have been written for all hardware devices. These will be used to confirm that all hardware is functioning at a basic level. Your team will demonstrate that all hardware and device drivers have basic functionality during the design review. Some examples of "basic functionality" are:
ADC: Demonstrate that the microcontroller can read an input from
ADC using the ADC driver and that it changes when the input voltage is varied.
DAC: Demonstrate that the microcontroller can vary the output of the DAC using
the DAC driver.
LCD: Demonstrate that the microcontroller can use the LCD driver to display a
character or point on the LCD.
LED: Demonstrate that the LED can be turned on and off using the LED driver.
Buttons: Demonstrate that the action of buttons can be read by the
microcontroller using the button driver.
Amplifiers: Demonstrate that a small signal becomes larger without unreasonable
distortion.
Filters: Demonstrate appropriate attenuation/gain using a function generator.
Your team will have completed a complete characterization of your power supply. Your team will demonstrate the power supply working with an output voltage within 2% of the spec'd output voltage at the expected load for your project.
Your team should have turned in the following documents by 11:00 AM on the day of the review:
Device Driver Specification
Power Supply Characterization
Schedule with up-to-date progress marked
All team members should be familiar with the basic operation of each subsystem and with the basic performance of the power supply. Each team member should be intimately familiar with the software/hardware for at least one subsystem.
| Category | Percentage of score |
| Power supply Efficiency - Characterized at all required points. Efficiency > 85% for switchers, at expected level for linear regulators. | 10 |
| Power supply Voltage out - Characterized at all required points. Voltage out is within 2% of spec at nominal load and input voltages. | 10 |
| Power supply Noise - Characterized at all required points. - For switching supplies: Output ripple is less than the maximum spec'd by manufacturer - For linear regulators: Noise rejection of at least -20dB from 60Hz to 10kHz |
10 |
| PCB completely populated | 20 |
| Device driver Spec - Includes all required information for all needed device drivers | 15 |
| Basic hardware/software functioning - Demonstrate that all hardware is functioning using basic device drivers | 30 |
| Schedule - Is the schedule marked with up-to-date progress and complete? | 5 |
Kevin Bolding September 22, 2009