Cypress Semiconductor Perform CY8C21x23 Manuel d'utilisateur télécharger pdf (Page 5)

February 25, 2005 Document No. 38-12022 Rev. *G 5

CY8C21x23 Final Data Sheet PSoC™ Overview

PSoC Designer Software Subsystems

Device Editor

The device editor subsystem allows the user to select different

onboard analog and digital components called user modules

using the PSoC blocks. Examples of user modules are ADCs,

DACs, Amplifiers, and Filters.

The device editor also supports easy development of multiple

configurations and dynamic reconfiguration. Dynamic reconfig-

uration allows for changing configurations at run time.

PSoC Designer sets up power-on initialization tables for

selected PSoC block configurations and creates source code

for an application framework. The framework contains software

to operate the selected components and, if the project uses

more than one operating configuration, contains routines to

switch between different sets of PSoC block configurations at

run time. PSoC Designer can print out a configuration sheet for

a given project configuration for use during application pro-

gramming in conjunction with the Device Data Sheet. Once the

framework is generated, the user can add application-specific

code to flesh out the framework. It’s also possible to change the

selected components and regenerate the framework.

Design Browser

The Design Browser allows users to select and import precon-

figured designs into the user’s project. Users can easily browse

a catalog of preconfigured designs to facilitate time-to-design.

Examples provided in the tools include a 300-baud modem, LIN

Bus master and slave, fan controller, and magnetic card reader.

Application Editor

In the Application Editor you can edit your C language and

Assembly language source code. You can also assemble, com-

pile, link, and build.

Assembler. The macro assembler allows the assembly code

to be merged seamlessly with C code. The link libraries auto-

matically use absolute addressing or can be compiled in relative

mode, and linked with other software modules to get absolute

addressing.

C Language Compiler. A C language compiler is available

that supports PSoC family devices. Even if you have never

worked in the C language before, the product quickly allows you

to create complete C programs for the PSoC family devices.

The embedded, optimizing C compiler provides all the features

of C tailored to the PSoC architecture. It comes complete with

embedded libraries providing port and bus operations, standard

keypad and display support, and extended math functionality.

Debugger

The PSoC Designer Debugger subsystem provides hardware

in-circuit emulation, allowing the designer to test the program in

a physical system while providing an internal view of the PSoC

device. Debugger commands allow the designer to read the

program and read and write data memory, read and write IO

registers, read and write CPU registers, set and clear break-

points, and provide program run, halt, and step control. The

debugger also allows the designer to create a trace buffer of

registers and memory locations of interest.

Online Help System

The online help system displays online, context-sensitive help

for the user. Designed for procedural and quick reference, each

functional subsystem has its own context-sensitive help. This

system also provides tutorials and links to FAQs and an Online

Support Forum to aid the designer in getting started.

Hardware Tools

In-Circuit Emulator

A low cost, high functionality ICE (In-Circuit Emulator) is avail-

able for development support. This hardware has the capability

to program single devices.

The emulator consists of a base unit that connects to the PC by

way of the parallel or USB port. The base unit is universal and

will operate with all PSoC devices. Emulation pods for each

device family are available separately. The emulation pod takes

the place of the PSoC device in the target board and performs

full speed (24 MHz) operation

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