Serial Peripheral Interface(SPI)

Contents [hide]

• What tools you will need
  • Required
  • Optional but useful
• Uses of this skill
• Step-by-step guide with images
• Flow chart of order of operations
• Troubleshooting/tips and tricks
• Related Topics
• Further reading

Background information

SPI is a source-synchronous (generates then shares its own clock) protocol, made up of two main parts.

• Master device - Only responsible for generating and sharing the clock and handling the transformation of data on the bus, and its flow.
• Slave device - Connects to the bus and is controlled through its own SS line by the master device, which allows the master device
  to communicate with each slave device individually.

Pin out

• SS - Slave Select
• SCLK - Serial clock
• MOSI - Master Out slave in
• MISO - Master in slave out

Uses of this protocol

• 1.EPROM(typically holds firmware
• 2.BIOS/EFI
• 3.devices which require do not require high speed connection and or frequent interact (Environmental sensors, cryptographic modules and wireless radios)

Step-by-step guide with images

Insert step-by-step walkthrough with images and summary text here

Flow chart of order of operations

Insert a flow chart of steps and actions for each task (create using diagram)

Troubleshooting/tips and tricks

Fixes to any common issues that were encountered or could be easily encountered

Related Topics

Topics such as desoldering to chip off or firmware dumping for disk PCB repairs

• Related Topic 1
• Related Topic 2

Further reading

External references in wiki references can just be cited through the keyword link

1. Reference 1: What is Serial Peripheral Interface (SPI)?
2. Reference 2: The Hardware Hacking Handbook (free) page48(online) page 50(in physical copy)