Difference between revisions of "826 demo (VB.NET)"

Revision as of 10:17, 17 May 2017

To jump-start your model 826 project, we offer a comprehensive demo that provides a GUI for nearly every hardware resource on the board. A pre-built executable is included to allow you to immediately configure and exercise the board's I/O interfaces. All VB.NET source files are provided, including a reusable module (mid826.vb) that declares all functions, types, and constants for the 826 API.

Installation

To install the demo software, follow these steps:

1. If you haven't already done so, download and install the 826 SDK
2. Create a new folder for the demo
3. Download the demo
4. Unzip the demo into the new folder

You may now run the demo in either of the following ways:

• Run app-826-win-vb.exe
• Open the VisualStudio project (app-826-win-vb.sln) and run the demo in the VB.NET development environment

User guide

Each GUI control is associated with an API function as noted in the following sections. Please refer to the 826 technical manual for information about API functions and hardware architecture/operation, and to the 826 technical wiki for application examples.

When the demo program is started, all GUI controls are initialized to indicate the current board state. The board's state is not changed when the demo starts, so the demo can be terminated and restarted without disturbing the board's configuration or operation.

General tab

Hardware Versions

• Board - PWB revision letter
• FPGA - firmware version number

Software Versions

• API - middleware version number
• Driver - device driver version number

SafeMode

• Active - SAF bit (safemode state); see S826_SafeControlRead, S826_SafeControlWrite
• Write-Enable Data - SWE bit (safemode write enable); see S826_SafeWrenRead, S826_SafeWrenWrite
• Triggers | Dio47 - XSF bit (enable dio47 triggering); see S826_SafeControlRead, S826_SafeControlWrite
• Triggers | Watchdog - SEN bit (enable watchdog triggering; see S826_WatchdogConfigRead, S826_WatchdogConfigWrite

Virtual Outputs

• 0-5 - see S826_VirtualRead, S826_VirtualWrite

Watchdog

• Control | Enable - see S826_WatchdogEnableRead, S826_WatchdogEnableWrite
• Control | Kick - see S826_WatchdogKick
• Status | 0-2 - see S826_WatchdogStatusRead
• Configure | Enable Stage1 Output - NIE bit; see S826_WatchdogConfigRead, S826_WatchdogConfigWrite
• Configure | Enable Stage2 Output - OEN bit; see S826_WatchdogConfigRead, S826_WatchdogConfigWrite
• Configure | Pulse RST - PEN bit; see S826_WatchdogConfigRead, S826_WatchdogConfigWrite
• Interval - watchdog intervals; see S826_WatchdogConfigRead, S826_WatchdogConfigWrite

DIO tab

Inputs

• Top row of checkboxes indicate pin states, which are automatically polled by the demo; see S826_DioInputRead
• Filters - enables for debounce/noise filters; see S826_DioFilterRead, S826_DioFilterWrite
• Filter Delay - filter time for debounce/noise filters; see S826_DioFilterRead, S826_DioFilterWrite

Outputs

• Set All - turn on all 48 DIO output drivers (drive to 0V)
• Reset All - turn off all 48 DIO output drivers (pull up to +5V)
• Output Register - DIO output driver states; see S826_DioOutput, S826_DioOutputWrite
• Alternate Source - see S826_DioOutputSourceRead, S826_DioOutputSourceWrite

Fail-Safe

• State - see S826_DioSafeRead, S826_DioSafeWrite
• Enable - see S826_DioSafeEnablesRead, S826_DioSafeEnablesWrite

Capture

• Rising Edge - enable rising edge capture; see S826_DioCapEnablesRead, S826_DioCapEnablesWrite
• Falling Edge - enable falling edge capture; see S826_DioCapEnablesRead, S826_DioCapEnablesWrite
• Status - indicates captured edge (click to clear); see S826_DioCapRead

DAC tab

ADC tab

Counter tab