Spi and serial communication basics3/15/2024 There are other names that are often used: SS – Slave Select, Active low (generated by the master).MISO – Master Input, Slave Output (generated by the slave).MOSI – Master Output, Slave Input (generated by the master).SCLK – Serial Clock, Clock (generated by the master).Several slaves can coexist on the same bus, in such case, the selection of the recipient is done by a dedicated line between the master and the slave called Slave Select (SS). The circuits communicate according to a master-slave scheme, where the master controls the communication. A common example of application is in liquid crystal displays. Serial Peripheral Interface bus (SPI) developed by Motorola in the mid 1980s. Serial Peripheral Interface is a bus, a synchronous serial communication interface specification primarily used in embedded systems. What is SPI? Full form of SPI is Serial Peripheral Interface. Another phrase you’ll often come to notice is SPI. In our previous articles, we discussed about I☬ protocol, some basics on UART and discussed some basic around serial communication. For Arduino and related electronics prototyping, we need to know some basic theories which make them working.
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