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PaulOS F020: An RTOS for the C8051F020

Language:  English
This book covers the Silicon Labs C8051F020 MCU. It explains, with examples the PaulOS_F020 RTOS derived from the self-developed 8051 RTOS described in my 2-part Bookboon book ‘PaulOS – An 8051 RTOS’.
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This text book is intended for under-graduate Engineering and/or IT students studying micro-controllers and embedded systems. It covers mainly the C8051F020 family of mixed signals micro-controllers from Silicon Laboratories IDE ( Starting with the basic architecture it then moves on to explain the PaulOS_F020 co-operative Real-Time Operating System (RTOS) with full source code listing. This is derived from the self-developed basic 8051 RTOS fully described in my previous 2-part Bookboon book ‘PaulOS – An 8051 RTOS’ but specially modified for the high performance Silicon Lab MCU. Various example application programs using the Keil IDE ( and/or the Silicon Labs ‘Simple Studio’ are given as well as useful hints to avoid programming pitfalls.

  1. C8051F020 Basics
    1. Introduction
    2. Memory Types
    3. Program/Data Memory (Flash)
    4. External Data Address Space (XRAM)
    5. Register Banks
    6. Bit Memory
    7. Special Function Register (SFR) Memory
    8. SFR Descriptions
  2. PaulOS F020: a co-operative RTOS
    1. Description of the RTOS Operation
    2. PaulOS_F020.C System Commands
    3. Descriptions of the commands
    4. PaulOS_F020_Parameters.h header file
    5. Example using PaulOS_F020 RTOS
  3. Master – Slave RTOS
    1. Multi-controller RTOSs
    2. Master
    3. Slave
  4. Programming Tips and Pitfalls
    1. RAM size
    2. SFRs
    3. Setup faults
    4. Serial ports (UART0 and UART1)
    5. Interrupts
    6. RTOS pitfalls
    7. C Tips
About the Author

Paul P. Debono