Understanding SPI

День тому

This video provides a brief technical overview of the SPI (Serial Peripheral Interface) protocol and how it is used to transfer digital information.
Learn more about the R&S MXO4 Oscilloscope: rsna.us/6053gyf5W
Timeline:
00:00 Introduction
00:15 About SPI
01:02 Basic SPI components / nomenclature
01:59 Overview of SPI protocol
02:38 About CS
03:36 About SCLK
04:35 About MOSI
05:10 About MISO
05:57 Additional SPI topics
06:18 CPOL (clock polarity)
07:16 CPHA (clock phase)
07:32 SPI modes
08:49 Multi-slave configurations
10:31 Summary

КОМЕНТАРІ: 38

@selvakumarr6672 Рік тому

Crisp and clear. Covered basics very clearly. Thanks.

@pauldenisowski Рік тому

Thanks! I have another video on serial protocols that should come out in the next week or so :)

@JaymzBond 9 місяців тому

Thank you for this short and concise tutorial

@JeremyCook 8 місяців тому

Nicely explained. Thanks for using clear terminology (MISO, MOSI).

@pauldenisowski 7 місяців тому

Thanks. It's the same terminology that we use in our oscilloscopes :)

@jeffreyzhuang4395 11 днів тому

You explain it so WELL!

@shahdmahmoud4214 3 місяці тому

This exceptionally simple and very detailed

@pauldenisowski Місяць тому

Thank you!

@amrrasslan4329 8 місяців тому

crystal clear .would love to see CAN and LIN protocol .

@pauldenisowski 7 місяців тому

Thanks! I actually am already working on LIN and CAN (plus CAN-FD and CAN-XL presentations) but they probably won't come out until sometime next year.

@sushanttodkar8294 9 місяців тому

Thanks for very clear and easy explanation for SPI.

@pauldenisowski 9 місяців тому

Thanks!

@tuphanxuananh Рік тому

Great explanation of SPI!

@pauldenisowski Рік тому

Cám ơn rất nhiều!

@deepakchikne6751 10 місяців тому

Simple and Clear.

@pauldenisowski 10 місяців тому

Thanks!

@beliveinjesusglory1326 День тому

Very good presentation 👌👏👍

@rd-tk6js 5 місяців тому

excellent, thanks !

@bramlemmens6984 3 місяці тому

thank you so much for this!!

@pauldenisowski 3 місяці тому

Thanks for the feedback!

@user-ox9wg1jj9w Рік тому

At last! Nice and simple explanation of SPI)

@pauldenisowski Рік тому

Thanks! I've also done videos on UART and I2C, and I have a few other serial protocol videos under development right now :)

@EMAGK 8 місяців тому

@@pauldenisowskican you explain I3C

@pauldenisowski 8 місяців тому

@@EMAGK It's on my list :)

@mahadesharya6975 3 дні тому

Excellent!! Thanks very much

@bendibhafed1687 6 місяців тому

Amazing video,

@pauldenisowski 3 місяці тому

Thank you!

@user-fc5mj7sq8b 4 місяці тому

@Rohe Schwarz, In case of Daisy Chain, How Slave1 knows that data has to be transferred to Slave2? Is it based on Clock from Master with no-data(SDA is neither 0 or 1 level voltage)?

@krishnap9116 4 місяці тому

Thank you so much..

@pauldenisowski 3 місяці тому

Really appreciate the support!

@EngineerAnandu Місяць тому

can u pls share ur presentation slides?

@AAAAAA-ny4ib 11 місяців тому

Hello! I send a data packet "slave func data srs16", but the result is this signal "00 slave func data srs16". Why do two zeros appear? ModbusRTU

@pauldenisowski 11 місяців тому

Sorry, but I'd have to know a lot more about the implementation to try to answer that question. Are you observing the packets using an oscilloscope or logic anaylzer?

@architjoshi2199 10 місяців тому

At 8:34 should it be CPHA = 0?

@pauldenisowski 10 місяців тому

CPHA = 1 means "read on the second (trailing) edge of the clock pulse". Since CPOL = 1 (idle high), the clock pulse is negative or inverted, so to speak, and thus in this example we're reading on the trailing edge of the pulse. The "CPOL/CPHA" terminology is very confusing -- even device manufacturers sometimes get things mixed up in their literature.

@architjoshi2199 9 місяців тому

@@pauldenisowski Thanks for responding. I found contrary on the Analog Devices page (I wanted to put link here but UKposts is ridiculously removing my comment with URL)

@pauldenisowski 9 місяців тому

@@architjoshi2199 Yeah, I saw the Analog page too. In fairness (and as someone who makes about a thousand slides of content a year), it's impossible to avoid making mistakes every now and then :)