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This document presents the steps to setup an environment for using the EVAL-CN0241-SDPZ evaluation board together with the Xilinx KC705 FPGA board and the Xilinx Embedded Development Kit (EDK). Below is presented a picture of the EVAL-CN0241-SDPZ Evaluation Board with the Xilinx KC705 board.
For component evaluation and performance purposes, as opposed to quick prototyping, the user is directed to use the part evaluation setup. This consists of:
The SDP-B controller board is part of Analog Devices System Demonstration Platform (SDP). It provides a high speed USB 2.0 connection from the PC to the component evaluation board. The PC runs the evaluation software. Each evaluation board, which is an SDP compatible daughter board, includes the necessary installation file required for performance testing.
Note: it is expected that the analog performance on the two platforms may differ.
Below is presented a picture of SDP-B Controller Board with the EVAL-CN0241A-SDPZ Evaluation Board.
The circuit from the EVAL-CN0241-SDPZ board is a classic high-side current sensing circuit topology with a single sense resistor. High-side current monitors are likely to encounter overvoltage conditions from transients or when the monitoring circuits are connected, disconnected, or powered down.
The AD7920 is a 12-bit, high speed, low power, successive-approximation ADC respectively. The part operates from a single 2.35 V to 5.25 V power supply and features throughput rates up to 250 kSPS. The part contains a low-noise, wide bandwidth track/hold amplifier, which can handle input frequencies in excess of 6 MHz.
The first objective is to ensure that you have all of the items needed and to install the software tools so that you are ready to create and run the evaluation project.
Before connecting the ADI evaluation board to the Xilinx KC705 make sure that the VADJ_FPGA voltage of the KC705 is set to 3.3V. For more details on how to change the setting for VADJ_FPGA visit the Xilinx KC705 product page.
The following commands were implemented in this version of EVAL-CN0241 reference project for Xilinx KC705 FPGA board.
| Command | Description |
|---|---|
| help? | Displays all available commands. |
| voltage? | Displays the input voltage in [mV]. |
| adcCode? | Displays the output ADC code. |
Commands can be executed using a serial terminal connected to the UART peripheral of Xilinx KC705 FPGA.
The following image shows a generic list of commands in a serial terminal connected to Xilinx KC705 FPGA's UART peripheral.
The hardware platform for each reference projects with FMC-SDP interposer and KC705 evaluation board is common. The next steps should be followed to recreate the software project of the reference design:
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