CY8C24223A, CY8C24423A

The next step is to write your main program, and any sub-routines using PSoC Designer’s Application Editor subsystem. The Application Editor includes a Project Manager that allows you to open the project source code files (including all generated code files) from a hierarchal view. The source code editor provides syntax coloring and advanced edit features for both C and assembly language. File search capabilities include simple string searches and recursive “grep-style” patterns. A single mouse click invokes the Build Manager. It employs a professional-strength “makefile” system to automatically analyze all file dependencies and run the compiler and assembler as necessary. Project-level options control optimization strategies used by the compiler and linker. Syntax errors are displayed in a console window. Double clicking the error message takes you directly to the offending line of source code. When all is correct, the linker builds a HEX file image suitable for programming.

The last step in the development process takes place inside the PSoC Designer’s Debugger subsystem. The Debugger downloads the HEX image to the In-Circuit Emulator (ICE) where it runs at full speed. Debugger capabilities rival those of systems costing many times more. In addition to traditional single-step, run-to-breakpoint and watch-variable features, the Debugger provides a large trace buffer and allows you define complex breakpoint events that include monitoring address and data bus values, memory locations and external signals.

Document Conventions

Acronyms Used

The following table lists the acronyms that are used in this document.

Table 2. Acronyms

Acronym

Description

AC

alternating current

 

 

ADC

analog-to-digital converter

 

 

API

application programming interface

 

 

CPU

central processing unit

 

 

CT

continuous time

 

 

DAC

digital-to-analog converter

 

 

DC

direct current

 

 

ECO

external crystal oscillator

 

 

EEPROM

electrically erasable programmable read-only

 

memory

FSR

full scale range

 

 

GPIO

general purpose IO

 

 

GUI

graphical user interface

 

 

HBM

human body model

 

 

ICE

in-circuit emulator

 

 

ILO

internal low speed oscillator

 

 

IMO

internal main oscillator

 

 

IO

input/output

 

 

IPOR

imprecise power on reset

 

 

Table 2. Acronyms (continued)

Acronym

Description

LSb

least-significant bit

 

 

LVD

low voltage detect

 

 

MSb

most-significant bit

 

 

PC

program counter

 

 

PLL

phase-locked loop

 

 

POR

power on reset

 

 

PPOR

precision power on reset

 

 

PSoC®

Programmable System-on-Chip™

PWM

pulse width modulator

 

 

SC

switched capacitor

 

 

SRAM

static random access memory

 

 

Units of Measure

A units of measure table is located in the Electrical Specifications section. Table 5 on page 10 lists all the abbreviations used to measure the PSoC devices.

Numeric Naming

Hexadecimal numbers are represented with all letters in uppercase with an appended lowercase ‘h’ (for example, ‘14h’ or ‘3Ah’). Hexadecimal numbers may also be represented by a ‘0x’ prefix, the C coding convention. Binary numbers have an appended lowercase ‘b’ (for example, 01010100b’ or ‘01000011b’). Numbers not indicated by an ‘h’ or ‘b’ are decimal.

Document Number: 3-12029 Rev. *E

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Cypress CY8C24223A, CY8C24423A Document Conventions, Acronyms Used, Units of Measure, Numeric Naming, Acronyms Description