IntroductionIn the fields of electronics and digital communication, the SPI (Serial Peripheral Interface) protocol stands out for its flexibility and speed. However, when it comes to connecting multiple devices, traditional SPI configurations can quickly become cumbersome in terms of wiring and resource management. This is where the concept of Daisy Chain SPI emerges, providing an … Read more
JTAG is a commonly used interface for debugging devices. When there are many devices, a JTAG daisy chain can be used to save external interfaces, resulting in fewer external connection wires. The connection method is shown in the figure below:When sending and receiving data, it is necessary to determine the data to be received and … Read more
1. Independent Chip Select (Standard Multi-Slave Mode) Solution Description: Each slave device is assigned an independent SS (chip select) line, and the master device activates the target slave by pulling down the corresponding SS line.Advantages: Each slave is independently controlled, and communication does not interfere with each other. Supports full-duplex high-speed transmission.Disadvantages: The number of … Read more
The Serial Peripheral Interface (SPI) is one of the most widely used interfaces between microcontrollers and peripheral ICs (such as sensors, ADCs, DACs, shift registers, SRAM, etc.). SPI is a synchronous, full-duplex, master-slave interface. Data from the master or slave is synchronized on the rising or falling edge of the clock. Both the master and … Read more
Formatting | Last BugThe main content shared today is derived from ADI’s SPI knowledge study. SPI is one of the most commonly used communication methods in embedded development. However, most embedded software engineers often focus more on upper-layer software development and tend to overlook some underlying signal formats. When communication issues arise, it can be … Read more