C 8 0 5 1 F 0 0 x / 0 1 x - D K
4
Rev. 0.6
5. Example Source Code
Example source code and register definition files are provided in the “
SiLabs\MCU\Examples\C8051F0xx
” 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.
5.1. Register Definition Files
Register definition files
C8051F000.inc and C8051F000.h
define all SFR registers and bit-addressable
control/status bits for the C8051F00x/01x device family. They are installed into the
“
SiLabs\MCU\Examples\C8051F0xx
” directory during IDE installation. The register and bit names are identical to
those used in the C8051F00x/01x data sheet. Both 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.
5.2. Blinking LED Example
The example source files
blink.asm
and
blinky.c
show examples of several basic C8051F00x/01x 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. When compiled/assembled and linked this pro-
gram flashes the green LED on the target board about five times a second using the interrupt handler with a timer.
