Evaluating the EVAL-AD8460
Supported Evaluation Boards
Overview
The EVAL-AD8460SDZ board enables easy evaluation of the AD8460, offered in a 12 mm x 12 mm, 80-lead thin quad flat package (TQFP) with an exposed pad at the top for a mountable heat sink. The evaluation board provides a platform for quick and easy evaluation of the AD8460 for various user-defined configurations.
The AD8460 is ideally suited for demanding applications such as high-speed arbitrary waveform generation, programmable power supplies, and LCD/OLED panel formation.
The evaluation board hardware and software enable full operation of the AD8460 analog pattern generation (APG) and arbitrary waveform generation (AWG) modes. The AD8460 data sheet provides the full specifications of the AD8460 and details on the device operation. Consult it in conjunction with the user guide.
Hardware Specifications
Power Supply Requirments
For this specific project, an external 5V supply is connected to the VCC_5V pin to supply the SPI communication block of EVAL-AD8460.
Board Connector and Jumper Settings
Pin Description
Please see the following table for the pin assignments:
Name
Description
VCC_5V
Connect to 5V supply
GND
Connect to Ground
SCK
Connect to SPI Clock (SCK)
SDO
Connect to SPI Master In Slave Out (MISO)
CS
Connect to SPI Chip Select (CS)
SDI
Connect to SPI Master Out Slave In (MOSI)
RESETB
Connect to GPIO pin (RESET)
No-OS Build Setup
Please see: https://wiki.analog.com/resources/no-os/build
No-OS Supported Examples
The initialization data used in the examples is taken out from: Project Common Data Path
The macros used in Common Data are defined in platform specific files found in: Project Platform Configuration Path
Basic example
This is a simple example that:
initializes the AD8460
resets the AD8460
switches modes between APG and AWG
writes then reads HVDAC registers
and reads the shutdown flag
In order to build the basic example make sure you have the following configuration in the Makefile
# Select the example you want to enable by choosing y for enabling and n for disabling
BASIC_EXAMPLE = y
IIO_EXAMPLE = n
IIO example
This project is actually a IIOD demo for EVAL-AD8460. The project launches a IIOD server on the board so that the user may connect to it via an IIO client.
Using IIO-Oscilloscope, the user can configure the device.
If you are not familiar with ADI IIO Application, please take a look at: IIO No-OS
If you are not familiar with ADI IIO-Oscilloscope Client, please take a look at: IIO Oscilloscope
The No-OS IIO Application together with the No-OS IIO AD8460 driver take care of all the back-end logic needed to setup the IIO server.
This example initializes the IIO device and calls the IIO app as shown in: IIO Example
In order to build the IIO project make sure you have the following configuration in the Makefile
# Select the example you want to enable by choosing y for enabling and n for disabling
BASIC_EXAMPLE = n
IIO__EXAMPLE = y
No-OS Supported Platforms
Maxim Platform
Used hardware
Connections:
EVAL-AD8460 Pin |
Function |
MAX32666FTHR Pin |
VCC_5V |
Low Voltage Power Supply |
5V Supply (External) |
SCK |
SPI Clock (SCK) |
AIN3 (SPI1_SCK) |
SDO |
SPI Master In Slave Out (MISO) |
AIN2 (SPI1_MISO) |
CS |
SPI Chip Select (CS) |
AIN0 (SPI1_SS0) |
SDI |
SPI Master Out Slave In (MOSI) |
AIN1 (SPI1_MOSI) |
RESETB |
GPIO (RESET Pin) |
AIN4 (P0_27) |
GND |
Ground (GND) |
GND |
Build Command
# to delete current build
make PLATFORM=maxim TARGET=max32665 reset
# to build the project and flash the code
make PLATFORM=maxim TARGET=max32665 run