Assembled Board (minus backlight driver)
Prototype front panel (Yeah - it's cardboard. So?)
This is a test-bed for using the Analog Devices ADuC7026 in control voltage
processing applications. It supports four channels of input/output with a +/-5V
range, plus four ratiometric pots for real-time control. A 16x2 LCD, encoder
and two buttons are used for setup and configuration. Power requirements are
+/-15V and +5V. Programming and debug are supported with both a 20-pin ARM JTAG
connector, as well as a standard 3.3V UART connector compatible with the ADI
bootloader. An 8-pin AUX connector provides for future expansion with GPIO and/or
hardware-backed SPI and I2C interfaces.
Here's the schematic.
Firmware is under development, but preliminary code provides a sample rate
of 22.1kHz on each I/O channel and 5.025ksps on each the pots with plenty of
unused bandwidth for additional processing to be added.
Return to Synth page.