These communication bits of 1s and 0s are often organized in groups of eight, known as a byte. For there to be communication between the two devices, a common standard is required so that both the controller and peripheral understand each other.Ĭommunications are made with transmissions of words in binary notation. Digital communications are needed to write to and read from the device. Many precision data converters may require some configuration and programming. In both types of devices, this communication may be bidirectional.
With precision DACs as the second example, the controller microcontroller writes a digital word to the DAC to set an output voltage. Using precision ADCs as an example, the peripheral ADC measures an input voltage, and the controller microcontroller reads the data through digital communications. Many precision analog devices have a digital interface between a microcontroller, known as a controller, and a controlled device, known as a peripheral.
We'll discuss the communication structure and the required digital lines, then we'll show different modes of SPI communication, and finally give an example of how SPI data is transmitted to and received by a peripheral device. In this video, we describe digital communications and the basics of Serial Peripheral Interface, or SPI communication. Hello, and welcome to our in-depth look at communications with precision data converters.
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