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resources:fpga:xilinx:interposer:cn0271 [13 Jul 2012 14:06] – created Alexandru.Tofan | resources:fpga:xilinx:interposer:cn0271 [09 Jan 2021 00:49] (current) – user interwiki links Robin Getz | ||
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===== Supported Devices ===== | ===== Supported Devices ===== | ||
- | * [[adi>AD7920]] | + | * [[adi>AD7790]] |
- | ===== Evaluation Boards | + | ===== Reference Circuits |
- | + | ||
- | * [[adi> | + | |
+ | * [[adi> | ||
====== Overview ====== | ====== Overview ====== | ||
- | This document presents the steps to setup an environment for using the **[[adi> | + | This document presents the steps to setup an environment for using the **[[adi> |
{{ : | {{ : | ||
- | For component evaluation and performance purposes, as opposed to quick prototyping, | + | {{page>common_sdp}} |
- | * a controller board, like the **[[resources/ | + | |
- | * a compatible Analog Devices SDP [[adi>sdp# | + | |
- | * corresponding PC software | + | |
- | The EVAL-SDP-CB1Z controller board is part of Analog Devices SDP providing USB 2.0 high-speed connectivity to a PC computer running specific component evaluation software. | + | |
- | Below is presented a picture of **SDP-B** Controller Board with the **EVAL-CN0271A-SDPZ** Evaluation Board. | + | Below is presented a picture of **SDP-B** Controller Board with the **EVAL-CN0271-SDPZ** Evaluation Board. |
- | {{ : | + | {{ : |
The circuit from the **EVAL-CN0271-SDPZ** board is a complete thermocouple signal conditioning circuit with cold junction compensation followed by a 16-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC). The AD8495 thermocouple amplifier provides a simple, low cost solution for measuring K type thermocouple temperatures, | The circuit from the **EVAL-CN0271-SDPZ** board is a complete thermocouple signal conditioning circuit with cold junction compensation followed by a 16-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC). The AD8495 thermocouple amplifier provides a simple, low cost solution for measuring K type thermocouple temperatures, | ||
- | A fixed gain instrumentation amplifier in the [[adi>>AD8495}} amplifies the small thermocouple voltage to provide a 5 mV/°C output. The high common-mode rejection of the amplifier blocks commonmode noise that the long thermocouple leads can pick up. For additional protection, the high impedance inputs of the amplifier make it easy to add extra filtering. | + | A fixed gain instrumentation amplifier in the [[adi> |
The [[adi> | The [[adi> | ||
The circuit provides a compact low cost solution for thermocouple signal conditioning and high resolution analog-to-digital conversion. | The circuit provides a compact low cost solution for thermocouple signal conditioning and high resolution analog-to-digital conversion. | ||
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buffered or unbuffered along with a digital PGA, which allows | buffered or unbuffered along with a digital PGA, which allows | ||
gains of 1, 2, 4, and 8. | gains of 1, 2, 4, and 8. | ||
- | |||
===== More information ===== | ===== More information ===== | ||
* [[adi> | * [[adi> | ||
- | * [[adi>AD7920|AD7920 | + | * [[adi>AD7790|AD7790 |
- | * [[adi>/ | + | * [[adi> |
- | * [[http://www.xilinx.com/products/ | + | * [[xilinx>products/ |
- | * [[http:// | + | |
====== Getting Started ====== | ====== Getting Started ====== | ||
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===== Required Hardware ===== | ===== Required Hardware ===== | ||
- | * [[http://www.xilinx.com/products/ | + | * [[xilinx>products/ |
* FMC-SDP adapter board | * FMC-SDP adapter board | ||
* **EVAL-CN0271-SDPZ** evaluation board | * **EVAL-CN0271-SDPZ** evaluation board | ||
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===== Required Software ===== | ===== Required Software ===== | ||
- | * Xilinx ISE 13.4 (Programmer (IMPACT) is sufficient for the demo and is available on Webpack). | + | * Xilinx ISE 14.6. |
- | * [[http://micrium.com/ | + | * UART Terminal (Termite/Tera Term/Hyperterminal), |
+ | * The EVAL-CN0271 reference project for Xilinx KC705 FPGA. | ||
===== Downloads ===== | ===== Downloads ===== | ||
- | + | <WRAP round download 80%> | |
- | * {{:resources: | + | \\ |
- | + | * **AD7790 Driver:** https://github.com/ | |
- | The following table presents a short description the reference design archive contents. | + | * **CN0271 Commands:** https:// |
- | + | | |
- | ^ **Folder** ^ **Description** ^ | + | * **EDK KC705 Reference |
- | | Bit | Contains the KC705 configuration file that can be used to program the system for quick evaluation. | | + | \\ |
- | | Microblaze | Contains the EDK 13.4 project for the Microblaze softcore that will be implemented in the KC705 FPGA. | | + | </ |
- | | Software | Contains the source files of the software | + | |
- | | uCProbeInterface | Contains the uCProbe interface and the .elf symbols file used by uC-Probe to access data from the Microbalze memory. | | + | |
====== Run the Demonstration Project ====== | ====== Run the Demonstration Project ====== | ||
- | {{page> | + | ===== Hardware setup ===== |
- | ===== Demonstration Project User Interface ===== | + | <WRAP round important 80%> |
+ | \\ | ||
+ | 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 figure presents | + | * Use the FMC-SDP interposer to connect the ADI evaluation board to the Xilinx KC705 board on the FMC LPC connector. |
+ | | ||
- | {{ : | + | ===== Reference Project Overview ===== |
+ | The following commands were implemented in this version of EVAL-CN0271 reference project for Xilinx KC705 FPGA board. | ||
+ | ^ Command ^ Description ^ | ||
+ | | **help?** | Displays all available commands. | | ||
+ | | **adcCode? | ||
+ | | **temperature? | ||
+ | | **reset!** | Resets the serial interface with AD7790. | | ||
- | **Section A** is used to activate the board and monitor activity. The communication with the board is activated / deactivated by toggling the **// | ||
- | **Section B** is used to acquire data from AD7790. | + | Commands can be executed using a serial terminal connected |
- | ===== Troubleshooting ===== | + | The following image shows a generic list of commands in a serial terminal connected to Xilinx KC705 FPGA's UART peripheral. |
+ | {{ : | ||
- | In case there is a communication problem with the board the follwing actions can be perfomed in order to try to fix the issues: | + | ===== Software Project Setup ===== |
- | * Check that the evaluation board is powered as instructed in the board' | + | {{page> |
- | * In uC-Probe refresh the symbols file by right-clicking on the **//System Browser//** window and selecting **//Refresh Symbols// | + | |
- | * If the communication problem persists even after performing the previous steps, restart the uC-Probe application and try to run the interface again. | + | |
====== More information ====== | ====== More information ====== | ||
{{page> | {{page> |