Baseport Template Overview

What +is the Baseport Template

The Baseport Template is a reference +board template, which provides a basic framework consisting of base +parts of the Symbian platform. This framework can be modified to suit +your hardware configurations.

The Baseport Template code is +categorized into Application Specific Standard Product (ASSP) layer +and variant layer. The ASSP layer provides the source code for hardware-specific +functions (for example, GPIO, DMA, IIC, USB Client Controller) that +are used by the kernel. This layer is implemented by the TemplateAssp class. The variant layer provides common peripheral +control functions such as power, bootstrap, keymap, keyboard and sound +that other extensions and device drivers can use. This layer is implemented +by the Template class.

ASSP and variant layers +provide control functions for hardware which is used by multiple devices. +This is done by placing Baseport Template code in a single DLL, called +the Variant DLL (ecust.dll). For hardware architectures +based on an ASSP, you can allow multiple phone types that use the +same ASSP to share the common code. To achieve this, implement the +common ASSP code in a kernel extension, and ecust.dll implements the code that is specific to each variant.

Purpose +of the Baseport Template

The Baseport Template is mostly +useful in creating a baseport and testing the software. The following +is a list of some of the key uses of the Baseport Template.

The Baseport Template is useful in handling:

data exchange between devices connected to the bus
data copy between memory locations or between memory location +and peripheral
communication interface between the microprocessor components
hardware events and registers
USB functions of the device
power resources
phone restart after a hardware reset
shared chunks of camera and sound physical device driver
CPU idle operations
HAL, interrupt and keyboard functions
data storage based on NOR type flash memory
variant specific initialization (not the same as ASSP specific +initialization).

Users +of Baseport TemplateThe Baseport Template documentation cover +users who:

manufacture devices and want to develop software and get an +early debug output.
develop baseport. See Base Porting Guide for base porting details

Baseport +Template details

The following table lists the Baseport +Template details:

+ + + +

DLL

Library

Description

+ + + + +

katemplate.dll

None

ASSP DLL. This DLL is made up of the following template +files and can be found under ...template\asspandvariant\template_assp\ directory:

template_assp.cpp
interrupts.cpp
assp.cpp
register.cpp
template_assp.cia
interrupts.cia
assp.cia

+ + +

ecust.dll

None

Variant DLL. This DLL is made up of the following template +files and can be found in ...template\asspandvariant\template_variant\ directory:

variant.cpp
variant.cia

+ + + +