Cypress Semiconductor enCoRe CY7C64215 Instrukcja Użytkownika Pobierz pdf (Strona 6)

CY7C64215

Document Number: 38-08036 Rev. *E Page 6 of 33

Debugger

The PSoC Designer Debugger subsystem provides hardware

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

a physical system while providing an internal view of the enCoRe

III device. Debugger commands enable the designer to read and

program and read and write data memory, read and write I/O

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

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

debugger also enables 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 Cube is available for devel-

opment 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 a USB port. The base unit is universal which operates with

all enCoRe III devices.

Designing with User Modules

The development process for the enCoRe III device differs from

that of a traditional fixed-function microprocessor. The configu-

rable analog and digital hardware blocks give the enCoRe III

architecture a unique flexibility that pays dividends in managing

specification change during development and by lowering

inventory costs. These configurable resources, called enCoRe

III Blocks, have the ability to implement a wide variety of

user-selectable functions. Each block has several registers that

determine its function and connectivity to other blocks, multi-

plexers, buses and to the I/O pins. Iterative development cycles

permit you to adapt the hardware and software. This substan-

tially lowers the risk of having to select a different part to meet

the final design requirements.

To speed the development process, the PSoC Designer

Integrated Development Environment (IDE) provides a library of

pre-built, pre-tested hardware peripheral functions, called “User

Modules.” User modules make selecting and implementing

peripheral devices simple, and come in analog, digital, and

mixed signal varieties.

The user module library contains the following digital and analog

module designs:

■ Analog Blocks

❐ Incremental ADC (ADCINC)

❐ Delta Sigma ADC (DelSig)

❐ Programmable Threshold Comparator (CMPPRG)

■ Digital Blocks

❐ Counters: 8-bit and 16-bit (Counter8 and Counter 16)

❐ PWMs: 8-bit and 16-bit (PWM8 and PWM16)

❐ Timers: 8-bit and 16-bit (Timer8 and Timer 16)

❐ I

C Master (I

CM)

❐ SPI Master (SPIM)

❐ SPI Slave (SPIS)

❐ Full Duplex UART (UART)

❐ RF (CYFISNP and CYFISPI)

■ System Resources

❐ Protocols:

• USBFS

• I2C Bootheader (Boothdr I

• USB Bootheader (BoothdrUSBFS)

• USBUART

❐ Digital System Resources

•E2PROM

•LCD

•LED

• 7-segment LED (LED7SEG)

• Shadow Registers (SHADOWREG)

•Sleep Timer

Each user module establishes the basic register settings that

implement the selected function. It also provides parameters that

enable you to tailor its precise configuration to your particular

application. For example, a Pulse Width Modulator User Module

configures one or more digital PSoC blocks, one for each 8 bits

of resolution. The user module parameters permit the designer

to establish the pulse width and duty cycle. User modules also

provide tested software to cut development time. The user

module application programming interface (API) provides

high-level functions to control and respond to hardware events

at run-time. The API also provides optional interrupt service

routines that is adapted as needed.

The API functions are documented in user module data sheets

that are viewed directly in the PSoC Designer IDE. These data

sheets explain the internal operation of the user module and

provide performance specifications. Each data sheet describes

the use of each user module parameter and documents the

setting of each register controlled by the user module.

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