4.4.2 Signal and Noise Generator Operation

After the kit is powered up, the joystick can be operated to generate signal and noise according to the menu system displayed on the OLED. There are three types of menu options in the menu system and the effect of joystick operation on the different menu options will be described as below:

One menu option starts with □:

↑↓ selects between the different menu options.
← returns from current menu.
Push down → enables a signal /noise.

One menu option starts with ﹥:

↑↓ selects between the different menu options.
← returns from current menu.
Push down → enters a menu.

One menu option includes a slider:

↑→ increases Amplitude/Frequency/Offset of a signal/noise or DC level of DC signal.
↓← decreases Amplitude/Frequency/Offset of a signal/noise or DC level of DC signal.
Push down returns from current menu.

The top menu will be displayed after powering up. The top menu options are ﹥Signal Sources and ﹥Noise Sources. All of the menu options are described as below:

﹥Signal Sources
- □Sine Enable
- □Square Wave Enable
- □DC Enable
- □FSK Enable
- ﹥Sine Wave
  - ﹥Sine Amplitude
    - Sine Amplitude Slider
  - ﹥Sine Frequency
    - Sine Frequency Slider
  - ﹥Sine Offset
    - Sine Offset Slider
- ﹥Square Wave
  - ﹥Square Amplitude
    - Square Amplitude Slider
  - ﹥Square Frequency
    - Square Frequency Slider
  - ﹥Square Offset
    - Square Offset Slider
- ﹥DC
  - ﹥DC Level
    - DC Level Slider
- ﹥FSK
  - ﹥FSK Amplitude
    - FSK Amplitude Slider
  - ﹥FSK Sample Frequency
    - FSK Sample Frequency Slider
  - ﹥FSK Offset
    - FSK Offset Slider
﹥Noise Sources
- □Periodic Noise Enable
- □Random Noise Enable
- ﹥Periodic Noise
  - ﹥Periodic Noise Amplitude
    - Periodic Noise Amplitude slider
  - ﹥Periodic Noise Frequency
    - Periodic Noise Frequency Slider
- ﹥Random Noise
  - ﹥Random Noise Amplitude
    - Random Noise Amplitude Slider

According to the joystick operations and menu system described above, the signal or noise will be easily generated.