The System Driver

The System Driver

The second configurable component is the RTUSB-32 system driver. The system driver can be modified without recompiling other parts of RTUSB-32. Users who do not own the RTUSB-32 source code can still modify the system driver.

The system driver's API is defined in file Include\Rtusys.h. This file should not be modified to port RTUSB-32. It declares a number of platform dependent functions which must be implemented by the system driver. The functionality covered includes:

Memory allocation and deallocation
Physical memory management
Error handling
Time
Thread creation
Interrupt handler installation
Mutex handling
Message queue handling
Byte swapping
Port I/O
Class driver-specific OS functions

Further information about the system driver's API is contained as comments in file Include\Rtusys.h which must be read and understood before it is attempted to port RTUSB-32. Note that file Driver\Rtu32\Sysurtk32.c contains a complete RTUSB-32 system driver implementation for On Time RTOS-32 with RTKernel-32. Use this file as a template for custom system drivers.

Left Porting RTUSB-32 to other Platforms

Compile Time Options, Rtucfg.h

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