Wiki

Differences

This shows you the differences between two versions of the page.

Link to this comparison view

Both sides previous revision Previous revision
resources:fpga:xilinx:interposer:ad5172 [28 Sep 2012 11:28]
AdrianC Added common section for describing the evaluation setup and System Demonstration Platform
resources:fpga:xilinx:interposer:ad5172 [09 Oct 2013 16:45]
CsomI Delete ucProbe references, added UART interfaces snapshot, description
Line 11: Line 11:
 ====== Overview ====== ====== Overview ======
  
-This document presents the steps to setup an environment for using the **[[adi>​AD5172|EVAL-AD5172SDZ]]** evaluation board together with the Xilinx KC705 FPGA boardthe Xilinx Embedded Development Kit (EDK) and the [[http://​micrium.com/​page/​products/​tools/​probe|Micrium µC-Probe]] run-time monitoring tool. Below is presented a picture of the EVAL-AD5172SDZ Evaluation Board with the Xilinx KC705 board.+This document presents the steps to setup an environment for using the **[[adi>​AD5172|EVAL-AD5172SDZ]]** evaluation board together with the Xilinx KC705 FPGA board and the Xilinx Embedded Development Kit (EDK). Below is presented a picture of the EVAL-AD5172SDZ Evaluation Board with the Xilinx KC705 board.
  
 {{ :​resources:​fpga:​xilinx:​interposer:​ad5172.jpg?​400 }} {{ :​resources:​fpga:​xilinx:​interposer:​ad5172.jpg?​400 }}
Line 29: Line 29:
   * [[adi>/​static/​imported-files/​user_guides/​UG-243.pdf|EVAL-AD5172SDZ evaluation board user guide]]   * [[adi>/​static/​imported-files/​user_guides/​UG-243.pdf|EVAL-AD5172SDZ evaluation board user guide]]
   * [[http://​www.xilinx.com/​products/​boards-and-kits/​EK-K7-KC705-G.htm | Xilinx KC705 FPGA board]]   * [[http://​www.xilinx.com/​products/​boards-and-kits/​EK-K7-KC705-G.htm | Xilinx KC705 FPGA board]]
-  * [[http://​micrium.com/​page/​products/​tools/​probe|Micrium uC-Probe]] 
  
 ====== Getting Started ====== ====== Getting Started ======
Line 43: Line 42:
 ===== 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/​page/​products/​tools/​probe|uC-Probe]] run-time monitoring tool+  * UART Terminal (Termite/Tera Term/Hyperterminal),​ baud rate 115200.
  
 ===== Downloads ===== ===== Downloads =====
 +<WRAP round download 80%>
 +\\
 +  * **AD5172 Driver:** https://​github.com/​analogdevicesinc/​no-OS/​tree/​master/​device_drivers/​AD5172
 +  * **AD5172 Commands:** https://​github.com/​analogdevicesinc/​no-OS/​tree/​master/​device_commands/​AD5172
 +  * **Xilinx Boards Common Drivers:** https://​github.com/​analogdevicesinc/​no-OS/​tree/​master/​platform_drivers/​Xilinx/​SDP_Common
 +  * **EDK KC705 Reference project:** https://​github.com/​analogdevicesinc/​fpgahdl_xilinx/​tree/​master/​cf_sdp_kc705
 +\\
 +</​WRAP>​
  
-  * {{:​resources:​fpga:​xilinx:​interposer:​ad5172_evalboard.zip|Reference Design Files}}+===== Hardware setup =====
  
-The following table presents a short description ​the reference design archive contents.+<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. 
 +</​WRAP>​
  
-**Folder** ^ **Description** ^ +  ​Use the FMC-SDP interposer ​to connect ​the ADI evaluation ​board to the Xilinx ​KC705 board on the FMC LPC connector
-| Bit | Contains ​the KC705 configuration file that can be used to program ​the system for quick evaluation. | +  * Connect ​the JTAG and UART cables ​to the KC705 and power up the FPGA board.
-| 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 project that will be run by the Microblaze processor.| +
-| 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 ======+===== Reference ​Project ​Overview ​===== 
 +The following commands were implemented in this version of EVAL-AD5172 reference project for Xilinx KC705 FPGA board. 
 +^ Command ^ Description ^ 
 +| **help?** | Displays all available commands. | 
 +| **rdac=** | Load the wiper register with a give value. Accepted values:\\ channel:\\ 0 - select RDAC 1 wiper register.\\ 1 - select RDAC 2 wiper register.\\ value:\\ 0 .. 255 - value to be written in register. | 
 +| **rdac?** | Read back the value of the wiper register. Accepted values:\\ channel:\\ 0 - select RDAC 1 wiper register.\\ 1 - select RDAC 2 wiper register. | 
 +| **wbuf1?** | Read back the value of the Wiper Buffer in voltage. (VDD=3.2V) | 
 +| **shutdown=** | Shutdown connects wiper to B terminal and open circuits the A terminal. channel:\\ 0 - select RDAC 1 wiper register.\\ 1 - select RDAC 2 wiper register. | 
 +| **shutdown?​** | Notify about the state of the selected RDAC. channel:\\ 0 - select RDAC 1 wiper register.\\ 1 - select RDAC 2 wiper register. |
  
-{{page>​ucprobe_common}}+Commands can be executed using a serial terminal connected to the UART peripheral of Xilinx KC705 FPGA.
  
-===== Demonstration Project User Interface =====+The following image shows a generic list of commands in a serial terminal connected to Xilinx KC705 FPGA's UART peripheral. 
 +{{ :​resources:​fpga:​xilinx:​interposer:​Terminal_KC705.jpg?​ }}
  
-The following figure presents the **uC-Probe** interface that can be used for monitoring and controlling the operation of the **EVAL-AD5172SDZ** evaluation board. +===== Software Project Setup ===== 
- +{{page>​import_workspace}}
-{{ :​resources:​fpga:​altera:​bemicro:​ad5172interface.png?​700 }} +
- +
-**Section A** is used to activate the board and monitor activity. The communication with the board is activated / deactivated by toggling the **//​ON/​OFF//​** switch. The **//​Activity//​** LED turns green when the communication is active. If the **//​ON/​OFF//​** switch is set to **//ON//** and the **//​Activity//​** LED is **//​BLACK//​** it means that there is a communication problem with the board. See the **Troubleshooting** section for indications on how to fix the communication problems. +
- +
-**Section B** is used to update the RDAC registers, to switch the device to shutdown mode and to program the wiper permanently.The RDAC registers can be updated by selecting a desirable value on the slider and clicking **//Load RDACx//​**. +
-  * **//​Shutdown//​**:​ When it is pressed, connects wiper to B terminal and open circuits the A terminal. It does not change the contents of the wiper register. When it is released, the previous latch settings put the wiper in the same resistance setting prior to shutdown. +
-  * **//​Program//​**:​ When it is pressed, programs the wiper permanently. The **//Fuse Status//** numeric box shows the status of the device'​s fuse and can have the followin values: 0 - ready, 2 - error, 3 - success. +
- +
-**Section C** is used to send one or two bytes to the AD5172 circuit. A customized I2C data-word can be sent by manually switching the buttons from 0 to 1 or from 1 to 0 as desired and then toggling the **//Send Data//** switch. The number of bytes to send can be selected by switching the **//Bytes to Send//** switch to 1 or 2. +
- +
-===== Troubleshooting ​===== +
- +
-In case there is a communication problem with the board the follwing actions can be perfomed in order to try to fix the issues: +
-  * Check that the evaluation board is powered as instructed in the board'​s user guide. +
-  * 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 ======
   * [[resources:​tools-software:​linux-drivers:​misc:​dpot|AD5172 Digital Potentiometer Linux Driver]]   * [[resources:​tools-software:​linux-drivers:​misc:​dpot|AD5172 Digital Potentiometer Linux Driver]]
 {{page>​ez_common}} {{page>​ez_common}}
resources/fpga/xilinx/interposer/ad5172.txt · Last modified: 09 Oct 2013 16:45 by CsomI