C8051F912DK Silicon Laboratories Inc, C8051F912DK Datasheet - Page 11

• Manufacturer Part Number: C8051F912DK
• Description: KIT DEV FOR C8051F91X/C8051F90X
• Manufacturer: Silicon Laboratories Inc
• Type: MCUr

Specifications of C8051F912DK

• Contents: Board, Batteries, Cables, CD, Power Adapter, USB Debug Adapter
• Product: Microcontroller Modules
• Core Processor: C8051F9xx
• Clock Speed: 32.768 KHz
• Interface Type: UART
• Operating Supply Voltage: 1.8 V to 3.6 V
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• For Use With/related Products: C8051F91x/0x
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 336-1854

C8051F912-DK
6. Example Source Code
Example source code and register definition files are provided in the “SiLabs\MCU\Examples\C8051F91x_90x\”
default directory during IDE installation. These files may be used as a template for code development. Example
applications include a blinking LED example which configures the green LED on the target board to blink at a fixed
rate.
6.1. Register Definition Files
Register definition files C8051F912.inc and C8051F912_defs.h define all SFR registers and bit-addressable
control/status bits. A macro definition header file compiler_defs.h is also included, and is required to be able to use
the
C8051F912_defs.h
header
file
with
various
tool
chains.
These
files
are
installed
into
the
“SiLabs\MCU\Examples\C8051F91x_90x\Header_Files\” directory during IDE installation by default. The register
and bit names are identical to those used in the C8051F91x-C8051F90x data sheet. These register definition files
are also installed in the default search path used by the Keil Software 8051 tools. Therefore, when using the Keil
8051 tools included with the development kit (A51, C51), it is not necessary to copy a register definition file to each
project’s file directory.
6.2. Blinking LED Example
The
example
source
files
F91x_Blinky.asm
and
F91x_Blinky.c
installed
in
the
default
directory
“SiLabs\MCU\Examples\C8051F91x_90x\Blinky” show examples of several basic C8051F912 functions. These
include disabling the watchdog timer (WDT), configuring the Port I/O crossbar, configuring a timer for an interrupt
routine, initializing the system clock, and configuring a GPIO port pin. When compiled/assembled and linked this
program flashes the green LED on the C8051F912 Target Board about five times a second using the interrupt
handler with a C8051F912 timer.
6.3. Touch Sensitive Switch Example
The example source file F91x_CapTouchSense_Switch.c demonstrates the configuration and usage of the touch
sensitive (contactless) switches located on P1.0 and P1.1. Refer to the source file for step-by-step instructions to
build
and
test
this
example.
This
is
installed
in
the
“SiLabs\MCU\Examples\C8051F91x_90x\
CapTouchSense_Switch” directory by default.
Rev. 0.1
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