Differences

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--- resources:eval:user-guides:circuits-from-the-lab:cn0357 [12 Aug 2014 20:22] – [Software Control and Indicator Descriptions] James Fitzgerald
+++ resources:eval:user-guides:circuits-from-the-lab:cn0357 [16 Apr 2018 09:49] – Jesse Daniel Santos
@@ Line 10: / Line 10: @@
 This user guide will discuss how to use the evaluation software to collect data from the [[http://www.analog.com/EVAL-CN0357-PMDZ|EVAL-CN0357-PMDZ]] Evaluation Board **(CN-0357 Board)**
-{{:resources:eval:user-guides:circuits-from-the-lab:cn0357:cn0357-simplified_schematic.png?nolink&|}}
+{{:resources:eval:user-guides:circuits-from-the-lab:cn0357:cn0357-simplified_schematic.png?800|}}
 ===== Required Equipment =====
   * [[http://www.analog.com/EVAL-SDP-CB1Z|EVAL-SDP-CB1Z]] Controller Board (**SDP-B Board**)
@@ Line 29: / Line 30: @@
   * The [[http://www.analog.com/EVAL-CFTL-6V-PWRZ|EVAL-CFTL-6V-PWRZ]] **(+6V DC Power Supply)** powers the [[http://www.analog.com/SDP-PMD-IB1Z|SDP-PMD-IB1Z]] **(SDP to Pmod Interposer Board)** via the DC barrel jack
   * The [[http://www.analog.com/EVAL-SDP-CB1Z|EVAL-SDP-CB1Z]] **(SDP-B Board)** connects to the PC via the USB cable.
-\\ \\ {{:resources:eval:user-guides:circuits-from-the-lab:cn0357:cn0357-test_setup.png?nolink&|}}
+{{ :resources:eval:user-guides:circuits-from-the-lab:cn0357:cn0357-test_setup.png?nolink |}}
 ----
 ===== Installing the Software =====
@@ Line 71: / Line 71: @@
     * __Reduction (source)__ - Select this option if the sensor sources current.
   -**Max Sensor Sensitivity Numerical Control**
-    * The maximum amount of current in nanoamps (nA) the sensor will sink/source per part per million (ppm).  This control influences the feedback resistance set by the Rheostat ([[http://www.analog.com/AD5270|AD5270]]).
+    * The maximum amount of current in nanoamps (nA) the sensor will sink/source per part per million (ppm).
+    * This control influences the feedback resistance set by the Rheostat ([[http://www.analog.com/AD5270|AD5270]]).
   -**Typical Sensor Sensitivity Drop-down Menu**
-    * The typical amount of current in nanoamps (nA) the sensor will sink/source per part per million (ppm).  This control influences the size of the LSB in terms of ppm/mV and mV/ppm.
+    * The typical amount of current in nanoamps (nA) the sensor will sink/source per part per million (ppm).
+    * This control influences the size of the LSB in terms of ppm/mV and mV/ppm.
   -**Sensor Range Numerical Control**
     * The maximum concentration the sensor can measure in parts per million.
   -**Feedback Resistance Numerical Indicator**
-    * The feedback resistance of the transimpedance amplifier on the **CN0357 Board** ([[http://www.analog.com/ADA4528-2|ADA4528-2]]).  This can be set by the Rheostat ([[http://www.analog.com/AD5270|AD5270]]) or by populating a fixed resistor in the available footprint.
+    * The feedback resistance of the transimpedance amplifier on the **CN0357 Board** ([[http://www.analog.com/ADA4528-2|ADA4528-2]]).
+    * This can be set by the Rheostat ([[http://www.analog.com/AD5270|AD5270]]) or by populating a fixed resistor in the available footprint.
   -**ppm/mV Numerical Indicator**
     * Parts per million concentration per millavolt
@@ Line 91: / Line 94: @@
     * This indicator displays the current state of the software in the form of an LED.  There are three status LED colors.\\ {{:resources:eval:user-guides:circuits-from-the-lab:cn0357:cn0357-software-inactive.png?nolink&|}}Inactive\\ {{:resources:eval:user-guides:circuits-from-the-lab:cn0357:cn0357-software-busy.png?nolink&|}}Busy\\ {{:resources:eval:user-guides:circuits-from-the-lab:cn0357:cn0357-software-error.png?nolink&|}}Error\\
   -**Buffer Mode Radio Buttons**
-    * __Buffered Mode__ - FIXME
+    * __Buffered Mode__ - This allows the user to place source impedance on the front end without contributing to gain errors to the system.
-    * __Unbuffered Mode__ - FIXME
+    * __Unbuffered Mode__ - This disables the buffers, lowering the power consumption of the device.\\ \\ <WRAP center round info 60%> \\ Enabling the buffers also reduces the **Analog Input Range** of the ADC</WRAP>
   -**Mode Register Numerical Indicator**
-    * FIXME
+    * This register is used to configure the ADC for range, enable or disable the buffer, or place the device into power-down mode.
+    * The **Register Bit Designations** can be found on Page 11 of the [[http://www.analog.com/AD7790|AD7790]] Datasheet in Table 9.
   -**Filter Register Numerical Indicator**
-    * FIXME
+    * This register is used to set the output word rate.
+    * Table 12 in the [[http://www.analog.com/AD7790|AD7790]] Datasheet outlines the **Register Bit Designations** for the filter register.\\ \\ <WRAP center round info 60%> \\ The CN0357 Evaluation Software uses the **Single Conversion Mode**.</WRAP>
   -**Reset ADC Button**
-    * FIXME
+    * The serial interface can be reset by writing a series of 1s on the DIN input.
+    * Reset returns the interface to the state in which it is expecting a write to the communications register.
+    * This operation resets the contents of all registers to their power-on values.
   -**Feedback Selector Radio Buttons**
-    * __Rheostat__ - FIXME
+    * __Rheostat__ - Selecting this option uses the Rheostat for the feedback resistance of the transimpedance amplifier and disables the **Fixed Resistor Numerical Control**.
-    * __Fixed Resistor__ - FIXME
+    * __Fixed Resistor__ - Selecting this option uses a fixed-resistor for the feedback resistance of the transimpedance amplifier and disables the **RDAC Value Numerical Indicator**, **Rheostat Resistance Numerical Indicator** and **Program Rheostat Button**.
   -**Fixed Resistor Numerical Control**
-    * FIXME
+    * Input the value of the resistor populated at **R7** if not using the Rheostat
   -**RDAC Value Numerical Indicator**
-    * FIXME
+    * The value transmitted to the RDAC register of the Rheostat in hexadecimal format.
   -**Rheostat Resistance Numerical Indicator**
-    * FIXME
+    * The equivalent resistance of the Rheostat.
   -**Program Rheostat Button**
-    * FIXME
+    * Load the current RDAC value to the 50-TP Memory Block of the Digital Rheostat.\\ \\ <WRAP center round important 60%>\\ Programming the current RDAC value to 50-TP can only occur 50 times.</WRAP>
 ----
-==== Capturing a Data ====
+==== Running the System ====
-FIXME
+  - Open the **CN0357.exe** application from the default installation location.
-  - **Establish a USB Connection Link**.
+  - The software will connect to the board automatically.
   - Click the **Run Button**
   - Click the **Stop Button** when acquisition is complete.
 ==== Saving Data to a Spreadsheet File ====
-  - **Capture Data**.
   - Click the **Save Data Button**.
   - Browse to the directory location where the spreadsheet file is to be saved.
   - Name the file.
   - Click the **OK Button**.
-<WRAP left round info 60%>\\ The software saves the spreadsheet file as ASCII text with columns separated by tabs.</WRAP>
+<WRAP center round info 60%>\\ The software saves the spreadsheet file as ASCII text with columns separated by tabs</WRAP>
 ===== Downloads =====
 {{:resources:eval:user-guides:circuits-from-the-lab:cn0357:cn0357-labview_source.zip|CN0357 LabVIEW Source}}

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