irobot-chf / parallel-cs

Parallel inject current source design

Parallel-CS

Parallel inject current source schematic and programming code, using AD9833 DDS IC.

Includes: Circuit schematics, PCB Layout, Arduino code for programming output frequency and/or phase of CS.

Instructions for programming CS board

• Turn on power (Press both push button switches).
• Connect mini-USB cable to Arduino.
• Open /src/DDS_PCB/DDS_PCB.ino and upload to Arduino.

Devices will be initially be programmed to default frequencies, specified in the src/frequencies.h file.

After programming, frequency and/or phase can be adjusted using serial monitor:

• Open serial monitor (Ctrl-Shift-M)
• Make sure line ending is set to 'no line ending' and baud rate is 9600
• 'freq chan value' will set the frequency of chan to value e.g. 'freq 2 2500' sets channel 2 to 2500Hz
• 'phase chan value' will set the phase in degrees of chan to value e.g. 'phase 2 50' sets phase of channel 2 to 50 degrees. Phase is 0 by default.
• The terminal should echo a message confirming programming is happening.

Once programmed, the USB cable can be unplugged.