The AD5592R/ AD5593R offer 8-Channel, 12-Bit, configurable ADC/DAC with on-chip reference and either SPI (AD5592R) or I2C interfaces (AD5593R). This page gives an overview of using the AD5592R/AD5593R firmware example with SDP-K1 EVAL board. The firmware example comprises 3 layers of software (from top to bottom): Console Application Layer, Device No-OS Layer and Platform Drivers (Mbed-OS) layer.
The application layer uses the ADI Console Libraries to create console based User Interactive (UI). The middle layer of No-OS device library have device specific APIs to interface with AD5592R/93R devices. These APIs allows direct access to device register map in order to read/write device registers. The bottom layer of Platform Drivers is responsible for Low Level Interface. The platform drivers uses mbed-os libraries to access low level peripheral (like GPIOs, SPI, I2C, etc). The devices from AD5592R/AD5593R family use SPI and I2C communication interfaces respectively.
The Mbed Platform simplifies the overall software development process by providing the low level driver support. This reduces the hardware dependency as any Mbed enabled board can be used with same firmware with little modifications (changing a pin mapping).
Both evaluation boards have 8 I/O pins available on the SMB connectors - I/O 0-7. These connectors are analog inputs or outputs depending on whether the I/Ox pin is configured as ADCs or DACs, or as digital inputs or outputs if the I/Ox pin is configured as a GPIO.
The SDP-K1 is connected to PC through USB cable. The firmware can be loaded into SDP-K1 board through this USB interface from PC. The SDP-K1 acts as a Serial Device and firmware loaded into it interacts with any serial terminal (like Teraterm, Putty, Coolterm, etc) by configuring terminal for proper serial settings (COM Port, Baud Rate, etc).
The AD5592R can be powered using the 3.3V supply from the SDP-K1 provided, on the evaluation board, the link LK1 is set to B and LK11 is set to A. The AD5593R can be powered by using the 5V supply from the Arduino header on the SDP-K1 and connecting them to J2 on the EVAL-AD5593R. LK11 should be set to C. This configuration can be seen in the picture above. To make use of the external 5V power supply and 2.5V reference supply integrated onto the evaluation board the EVAL-AD5592R/93R require an external 6V power supply which should be connected to J3. More details regarding setting up power supplies and other setup conditions can be found in the evaluation board user guides.
SDP-K1 is powered through USB connection to PC. SDP-K1 acts as a Serial device when connected to PC, which creates a COM Port to connect to Serial Terminals like Teraterm, Putty, etc. The COM port assigned to a device can be seen through the device manager for windows based OS.
Latest firmware (Use below link):
If you have some familiarity with the Mbed platform, the following is a basic list of steps required to start running the code, see below for more detail:
The AD5592R/93R firmware example is configured to have following serial settings:
* Baud rate: 115200 * Data bits: 8-bits * Parity: None * Stop bits: 1
Configure your serial terminal ( Tera Term) for below settings:
The firmware is designed to be intuitive to use, and requires little explanation, simply enter the letter corresponding to the required command and follow the on-screen prompts.
The console menu application provides the following main features: