Electronic Components Datasheet Search |
|
EVAL-AD7470 Datasheet(PDF) 9 Page - Analog Devices |
|
EVAL-AD7470 Datasheet(HTML) 9 Page - Analog Devices |
9 / 20 page EVAL-AD7470/AD7472 Rev. C | Page 9 of 20 The upper third of the dialog box contains the control buttons, the menu bar, and the status windows. The control buttons allow the user to take samples, reset the part, and quit the program. The menu bar allows the user to enter the setup menu, select which printer port is to be used to control the EVAL-CONTROL BRD2, load and save data, and get informa- tion about the software. The status window indicates the setup of the evaluation board/device, the number of samples taken, and any information or error messages are generated. The middle third of the AD7470/AD7472 main dialog box is a digital storage oscilloscope (DSO). When samples are uploaded from the EVAL-CONTROL BRD2, they are displayed here. The samples can be displayed either as integer values or as voltages. Once the samples are displayed, clicking any point on the graph displays the sample number and the value of the point directly beneath the cursor. Along the axis of the graph are the zoom handles; these allow you to zoom in and out to get a closer look at a particular sample if required. When another set of samples is taken the graph attempts to display all values collected unless the Hold Zoom check box is ticked. If the Hold Zoom box is ticked, the graph keeps the same axis settings as for the previous set of data samples. There are additional check boxes in this section to give you control over the vertical grids, horizontal grids, and data points. The lower third of the dialog box shows either a fast Fourier transform (FFT) of the data, or a histogram, which shows the number of occurrences of each particular code read back. The FFT (the default option) is typically used when you are examin- ing an ADC’s performance in the frequency domain, while the histogram gives an indication of the ADC’s performance to DC signals. The option displayed can be changed by clicking the FFT Mode/Histogram Mode button in the top right of the dialog box. Figure 5 shows the main dialog box when histogram mode is selected. Taking Samples Clicking Sample instructs the EVAL-CONTROL BRD2 to take the required number of samples at the required frequency from the evaluation board. These samples are then uploaded and displayed. An FFT and histogram are also calculated and displayed. If you click Cont Samp, the software repeats the process indefinitely until the user clicks the button Stop Samp. While the software is continuously sampling data the other control buttons are disabled. Reset Button The Reset button causes the EVAL-CONTROL BRD2 to perform a reset function. When this happens, the power supplies are turned off and the program in DSP memory is lost. Repeat the setup instructions to download another program if required. Quit Button The Quit button exits the software. The program running on the EVAL-CONTROL BRD2 is not terminated. MENU BAR The main dialog box of the EVAL-CONTROL BRD2 contains a number of options available as pull-down menu items. File Menu Setup Menu: Displays the setup dialog box as shown in Figure 3. Load Raw Data: Allows the user to load data, which had been saved by the software during a previous session. Save Raw Data: Allows the user to save the current set of sample data points. The data can be reloaded to the EVAL- CONTROL BRD2 software at a later date or can be used by other programs for further analysis. Save Binary Data: Allows the user to save the current set of sample data points. The data is saved in binary format as a text file. This method can be useful for examining code flicker, and looking for stuck bits. Save FFT Data: Allows the user to save the current set of FFT data points. FFT data cannot be reloaded into the EVAL- CONTROL BRD2 software, but can be loaded into other software packages for further analysis. Exit: Quits the program. Printer Port This menu item allows you to select which printer port to use for communicating with the EVAL-CONTROL BRD2. LPT1: This option selects 0x378 as the printer port address. This is the default option. LPT2: This option selects 0x278 as the printer port address. PRN: This option selects 0x3BC as the printer port address. Help This menu item gives information about the current revision of software for the particular evaluation board being used. |
Similar Part No. - EVAL-AD7470_15 |
|
Similar Description - EVAL-AD7470_15 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.NET |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |