Debugging IoT Sensor Interfaces (SPI) with Digilent Analog Discovery 2
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Tutorial on how to debug a SPI Peripheral with the Digilent Analog Discovery 2. We create a SPI Master with the Discovery and use an Olimex MOD-LED8x8RGB Matrix as device under test.
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Debugging IoT Sensor Interfaces (SPI) with Digilent Analog Discovery 2
- 1. Debugging IoT Sensor Interfaces (SPI) with Digilent Analog Discovery 2 Vincent Claes
- 2. Contents • SPI • Hardware • Software • Waveforms SPI Master to Control IoT Peripheral Vincent Claes
- 3. SPI • Learn about SPI bus: • http://www.ni.com/white-paper/9119/en/ • https://en.wikipedia.org/wiki/Serial_Peripheral_Interface_Bus Vincent Claes Mode CPOL CPHA 0 0 0 1 0 1 2 1 0 3 1 1 Images from wikipedia
- 4. Hardware • Analog Discovery 2 NI Edition • http://sine.ni.com/nips/cds/view/p/lang/nl/nid/213328 • 2-channel 100 MS/s oscilloscope, 2-channel waveform generator, 16-channel logic analyzer • 16-channel digital pattern generator, spectrum analyzer, network analyzer, and voltmeter • ±5 VDC power supplies • Digital I/O, USB, bus powered • Free WaveForms application software • Windows and Mac OS X support • SPI Device: Olimex MOD-LED8x8RGB Vincent Claes
- 5. Waveforms SPI Master to test IoT Peripheral • Download Waveforms software and install • http://sine.ni.com/nips/cds/view/p/lang/nl/nid/213328#resources Vincent Claes
- 6. Waveforms SPI Master to test IoT Peripheral • Select Discover 2 device Vincent Claes
- 7. Matrix Analog Discovery • External Power Supply to Analog Discovery (5V DC) Vincent Claes Matrix Analog Discovery 2 GND Ground DATA Digital 2 (Purple) LATCH Digital 0 (Pink) SCK Digital 1 (Green) VCC V+ Power Supply
- 8. Matrix Analog Discovery Vincent Claes
- 9. Waveforms SPI Master to test IoT Peripheral • Power Supply Vincent Claes 5V Switch to On
- 10. Waveforms SPI Master to test IoT Peripheral • Protocol Vincent Claes
- 11. Waveforms SPI Master to test IoT Peripheral • SPI Settings Vincent Claes
- 12. Waveforms SPI Master to test IoT Peripheral • Start the testing! Vincent Claes Step 3
- 13. Waveforms SPI Master to test IoT Peripheral Vincent Claes
- 14. Contact Details • Vincent.claes@pxl.be • Twitter: @claesvincent • https://www.pxl.be/Pub/onderzoek/Projecten/Proj ecten-Smart-ICT/Smart-Connected-Services- (SmaCoS).html