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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 | ||
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This user guide will discuss how to use the evaluation software to collect data from the [[http:// | This user guide will discuss how to use the evaluation software to collect data from the [[http:// | ||
- | {{: | + | {{: |
===== Required Equipment ===== | ===== Required Equipment ===== | ||
* [[http:// | * [[http:// | ||
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* The [[http:// | * The [[http:// | ||
* The [[http:// | * The [[http:// | ||
- | \\ \\ {{: | + | {{ : |
---- | ---- | ||
===== Installing the Software ===== | ===== Installing the Software ===== | ||
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* __Reduction (source)__ - Select this option if the sensor sources current. | * __Reduction (source)__ - Select this option if the sensor sources current. | ||
-**Max Sensor Sensitivity Numerical Control** | -**Max Sensor Sensitivity Numerical Control** | ||
- | * The maximum amount of current in nanoamps (nA) the sensor will sink/source per part per million (ppm). | + | * 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:// | ||
-**Typical Sensor Sensitivity Drop-down Menu** | -**Typical Sensor Sensitivity Drop-down Menu** | ||
- | * The typical amount of current in nanoamps (nA) the sensor will sink/source per part per million (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** | -**Sensor Range Numerical Control** | ||
* The maximum concentration the sensor can measure in parts per million. | * The maximum concentration the sensor can measure in parts per million. | ||
-**Feedback Resistance Numerical Indicator** | -**Feedback Resistance Numerical Indicator** | ||
- | * The feedback resistance of the transimpedance amplifier on the **CN0357 Board** ([[http:// | + | * The feedback resistance of the transimpedance amplifier on the **CN0357 Board** ([[http:// |
+ | * This can be set by the Rheostat ([[http:// | ||
-**ppm/mV Numerical Indicator** | -**ppm/mV Numerical Indicator** | ||
* Parts per million concentration per millavolt | * Parts per million concentration per millavolt | ||
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* This indicator displays the current state of the software in the form of an LED. There are three status LED colors.\\ {{: | * This indicator displays the current state of the software in the form of an LED. There are three status LED colors.\\ {{: | ||
-**Buffer Mode Radio Buttons** | -**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</ |
-**Mode Register Numerical Indicator** | -**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:// | ||
-**Filter Register Numerical Indicator** | -**Filter Register Numerical Indicator** | ||
- | * FIXME | + | * This register is used to set the output word rate. |
+ | * Table 12 in the [[http:// | ||
-**Reset ADC Button** | -**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** | -**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**, |
-**Fixed Resistor Numerical Control** | -**Fixed Resistor Numerical Control** | ||
- | * FIXME | + | * Input the value of the resistor populated at **R7** if not using the Rheostat |
-**RDAC Value Numerical Indicator** | -**RDAC Value Numerical Indicator** | ||
- | * FIXME | + | * The value transmitted to the RDAC register of the Rheostat in hexadecimal format. |
-**Rheostat Resistance Numerical Indicator** | -**Rheostat Resistance Numerical Indicator** | ||
- | * FIXME | + | * The equivalent resistance of the Rheostat. |
-**Program Rheostat Button** | -**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.</ |
---- | ---- | ||
- | ==== 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 **Run Button** | ||
- Click the **Stop Button** when acquisition is complete. | - Click the **Stop Button** when acquisition is complete. | ||
==== Saving Data to a Spreadsheet File ==== | ==== Saving Data to a Spreadsheet File ==== | ||
- | - **Capture Data**. | ||
- Click the **Save Data Button**. | - Click the **Save Data Button**. | ||
- Browse to the directory location where the spreadsheet file is to be saved. | - Browse to the directory location where the spreadsheet file is to be saved. | ||
- Name the file. | - Name the file. | ||
- Click the **OK Button**. | - Click the **OK Button**. | ||
- | < | + | < |
===== Downloads ===== | ===== Downloads ===== | ||
{{: | {{: |