Техническая Спецификация для 4d Systems SOMO 14D SOMO-14D SOMO-14D
Модели
SOMO-14D
4D SYSTEMS SOMO-14D
© 2012 4D SYSTEMS Page 6 of 11 www.4dsystems.com.au
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range of 100uF to 470uF between this pin and
supply ground. Figure 2 shows several power
supply options.
supply ground. Figure 2 shows several power
supply options.
Figure 2: Power Supply Options
5. Operating Modes
The SOMO module offers two modes of operation,
SERIAL-MODE and the KEY-MODE. This section
describes both modes in detail.
SERIAL MODE
5.1.
The SERIAL-MODE provides a simple 2-wire
interface to any micro-controller. The host micro
communicates with the module via the DATA and
CLK lines. Figure 3 below outlines a typical set up.
Figure 3: Typical Host Micro Interface
All commands are composed of single word (16
bit) data that must be clocked into the module in a
serial fashion (most significant bit first). The clock
rate is approximately 5KHz which enables even the
slowest microcontroller to ‘bit-bang’ two I/O ports
to achieve this simple communication.
Command Codes:
The SOMO audio operations such as FILE
ADDRESS, PLAY, PAUSE and VOLUME control are all
available to the host micro-controller as 16-bit
command codes.
ADDRESS, PLAY, PAUSE and VOLUME control are all
available to the host micro-controller as 16-bit
command codes.
Table1 and Table2 below lists the available
function codes and provides a brief description.
function codes and provides a brief description.