Silicon Laboratories C8051T620-DK, User Manual

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6. Example Source Code
Example source code and register definition files are provided by default in the
SiLabs\MCU\Examples\C8051T620_1_T320_3 or SiLabs\MCU\Examples\C8051T622_3_T326_7 directory during
IDE installation. These files may be used as a template for code development.
6.1. Register Definition Files
Register definition files C8051T620.inc , C8051T622.inc , C8051T620_defs.h , C8051T622_defs.h , and
compiler_defs.h define all SFR registers and bit-addressable control/status bits. They are installed by default into
the SiLabs\MCU\Examples\C8051T620_1_T320_3 or SiLabs\MCU\Examples\C8051T622_3_T326_7 directory
during IDE installation. The register and bit names are identical to those used in the C8051T620-21_T320-3 or
C8051T620-23_T326-27 data sheet.
6.2. Blinking LED Example
The example source files T620_Blinky.asm and T620_Blinky.c or T622_Blinky.asm and T622_Blinky.c show
examples of several basic C8051T62x 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, these programs flash the green LED on the C8051T62x
Motherboard about five times a second using the interrupt handler with a timer.