3/23/2021 0 Comments Arduino Can Bus Sniffer
Press question mark to learn the rest of the keyboard shortcuts Log in sign up User account menu 1 Arduino as a SPI Sniffer.Lately Ive been wanting to see if I can use it to read data from an SPI device.I know of a project that exists for PS1 memory cards already, but that doesnt seem to do me any good.
Instead, I thought it would be a good idea to analyze the signals from the PS2 itself by connecting to the points on the memory card and reading them as the PS2 accesses them. I dont own an oscilloscope, and so I tried some different examples of using the Arduino as an oscilloscope and I get a lot of noise in the signal and all the lines almost seem to just be the same. However, I feel that with the right knowledge I can figure this stuff out. Im a programmer so this isnt something that is completely beyond me. I currently have soldered wires to the memory card itself for each of the pins. The pinout is MISO, MOSI, 7.6v, GND, 3.6v (VCC), SS, CLK and ACK. TL;DR - Is there any way I can use the Arduino Uno to analyze signal going to a SPI device to understand how they talk to each other 8 comments share save hide report 100 Upvoted This thread is archived New comments cannot be posted and votes cannot be cast Sort by best level 1 2 points 3 years ago Do you want to sniff data on the connection between the card and something else or just read data These are two different questions. I wanted to see how the PS2 communicated with the memory card and wanted to see if the Arduino could help with the research element of this project. Scopes and logic analyzers have very high impedance probes that can be hooked into a circuit without affecting it much. ![]() Especially for something running at a high clock rate even a little capacitance will round off your signals enough to screw it up. I will look into this more and get some real logic analyzer for something like this. Continue this thread level 1 1 point 3 years ago Note that there are two access modes for SD cards. Low speed you can probably capture, but most commercial products will probably use high speed mode. View entire discussion ( 8 comments) More posts from the arduino community Continue browsing in rarduino rarduino A place for all things Arduino 246k Members 602 Online Created Jul 29, 2008 Join help Reddit App Reddit coins Reddit premium Reddit gifts about careers press advertise blog Terms Content policy Privacy policy Mod policy Reddit Inc 2020. All rights reserved Back to top.
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