SE-3910 Real-time Systems Week 2, Class 3 – Return Quiz, Q’s on HW Assignment? – Signals –...
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Transcript of SE-3910 Real-time Systems Week 2, Class 3 – Return Quiz, Q’s on HW Assignment? – Signals –...
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SE-3910Real-time Systems
• Week 2, Class 3– Return Quiz, Q’s on HW Assignment?– Signals – Audio!– Review/Basic Circuits
• Kirkhoff’s Current & Voltage Law, Equivalent Resistance• Ohm’s Law, Switches, Potentiometers, & Pull-up resistors• How to burn up your Beaglebone (Didn’t cover)
• Quiz Tuesday at start of Lab 3– On prelab video, Beagleboard circuits, etc.
SE-3910 - Dr. Josiah YoderSlide style: Dr. Hornick
Much Material: Dr. Schilling, Some from Dr. Hornick, etc.
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Upcoming Quiz:Topics[STALE: See Monday’s!]
• Prelab video – questions similar to the quiz at the end of Dr. Schilling’s video (TBA)
• How to burn up your Beaglebone• Beaglebone I/O circuits• Locating a pin on board
– (will supply necessary figures!)
• Label amplitude, peak-to-peak voltage, pulse-width, etc. on a waveform & compute Veff
SE-3910 - Dr. Josiah YoderSlide style: Dr. Hornick
Much Material: Dr. Schilling2
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Sketching & Listening to Waveforms
• Sine wave
• Square wave
• Sawtooth wave(s)
• Random wave
• Efffect of changing– Amplitude– Frequency– Phase (time shift)
On sound!
Also: Rise Time, Time Difference, Offset
SE-3910 - Dr. Josiah YoderSlide style: Dr. Hornick
Much Material: Dr. Schilling3
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A – 440[Didn’t discuss]
• The A above middle C– An American Standard - 1936 ASA (ANSI)– International – 1955, 75 (ISO-16)
• 440 Hz = 440 cps (archaic)• Used to tune most modern instruments
SE-3910 - Dr. Josiah YoderSlide style: Dr. Hornick
Much Material: Dr. Schilling4
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Pinout: Analog Discovery (Digilent)
SE-3910 - Dr. Josiah YoderSlide style: Dr. Hornick
Much Material: Dr. Schilling5
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PC
SE-3910 - Dr. Josiah YoderSlide style: Dr. Hornick
Much Material: Dr. Schilling6
Contains separate•Microprocessor(s)•Memory•Peripheral (I/O) device HW
• serial port• parallel port• USB port• Bluetooth port• IR port• AGP port• WiFi port,…
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Beaglebone
SE-3910 - Dr. Josiah YoderSlide style: Dr. Hornick
Much Material: Dr. Schilling7
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SE-3910 - Dr. Josiah YoderSlide style: Dr. Hornick
Much Material: Dr. Schilling8
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Expansion
SE-3910 - Dr. Josiah YoderSlide style: Dr. Hornick
Much Material: Dr. Schilling9
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A Cape
SE-3910 - Dr. Josiah YoderSlide style: Dr. Hornick
Much Material: Dr. Schilling10
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SE-3910 - Dr. Josiah YoderSlide style: Dr. Hornick
Much Material: Dr. Schilling11
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Finding GPIO Port
SE-3910 - Dr. Josiah YoderSlide style: Dr. Hornick
Much Material: Dr. Schilling12
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SE-3910 - Dr. Josiah YoderSlide style: Dr. Hornick
Much Material: Dr. Schilling13
Resistor
Switch
Ground
BatterySource
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SE-3910 - Dr. Josiah YoderSlide style: Dr. Hornick
Much Material: Dr. Schilling14
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SE-3910 - Dr. Josiah YoderSlide style: Dr. Hornick
Much Material: Dr. Schilling15
ITM QTY REF PART DESCRIPTION DISTR PART #1 1 PCB 2-LAYER 3.4" x 2.15" 2 2 P1, P2 2x23 HDR FE DUAL - STRAIGHT SOCKET STRIP .025" SQ. PINS MLE SSHQ-123-D-08-F-LF3 1 P3 8 PIN HDR FE CONN HEADER FEMALE 8 POS 0.1" GOLD DK PPPC081LFBN-RC4 2 S1, S2 BUTTONS SWITCH TACT SPST-NO .05A 24V DK B3F-10005 2 D1, D2 LEDS LED GREEN 3MM 568NM 20mA 2.12V DK WP7104SGC6 2 R1, R2 RESISTOR RES 470 OHM 1/4W 5% CF MINI DK CFM14JT470R7 1 BR1 BREADBOARD WHT ADHSV SLDRLSS BRDBRD 170 TIE PT 1.8" x 1.37" PLU 14908 1 JMPR WIRE KIT 10 x 14 LNGTH .1" .2" .3" .4" .5" .6" .7" .8" .9" 1" 2" 3" 4" 5" SQR
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Class Example
SE-3910 - Dr. Josiah YoderSlide style: Dr. Hornick
Much Material: Dr. Schilling16