The SPI clock function LED indication analyzer is a tool that analyzes the clock signal of the SPI (Serial Peripheral Interface) communication protocol and provides an indication of its status through a series of LED lights.
The analyzer has a set of LEDs that light up based on the state of the clock signal, providing visual feedback of the data transfer. The analyzer is designed to be used in a debugging or testing environment to help engineers quickly identify any issues with the clock signal, such as frequency errors, signal degradation, or signal loss.
The LED indication analyzer can be used in conjunction with an oscilloscope to provide a more detailed analysis of the clock signal and help engineers to troubleshoot any issues with the communication protocol.
In summary, the SPI clock function LED indication analyzer is a useful tool for debugging and testing SPI communication protocols, providing visual feedback of the clock signal and allowing engineers to quickly identify and resolve any issues.
The SPI bus specifies four logic signals:
SCLK: Serial Clock (output from master)
MOSI: Master Out Slave In (data output from master)
MISO: Master In Slave Out (data output from slave)
CS /SS: Chip/Slave Select (often active low, output from master to indicate that data is being sent)
MOSI on a master connects to MOSI on a slave. MISO on a master connects to MISO on a slave. Slave Select has the same functionality as chip select and is used instead of an addressing concept.
Note: on a slave-only device, MOSI may be labelled as SDI (Serial Data In), and MISO may be labelled as SDO (Serial Data Out)
The signal names above can be used to label both the master and slave device pins as well as the signal lines between them in an unambiguous way, and are the most common in modern products. Pin names are always capitalized, e.g. "Chip Select," not "chip select."
SIMO, MTSR - correspond to MOSI on both master and slave devices, connect to each other
SDI, DI, DIN, SI - on slave devices; connects to MOSI on master or to below connections
SDO, DO, DOUT, SO - on master devices; connects to MOSI on slave or to above connections
Master Input ← Slave Output (MISO):
SOMI, MRST - correspond to MISO on both master and slave devices, connect to each other
SDO, DO, DOUT, SO - on slave devices; connects to MISO on master or to below connections
SDI, DI, DIN, SI - on master devices; connect to MISO on slave or to above connections
Slave Select: