Cypress CY8CKIT－025分辨率0.1度C温度测量解决方案

发布时间：2012-6-14 15:00 发布者：1770309616

Cypress公司的CY8CKIT-025 PSoC® 精密模拟温度传感器扩展板套件(EBK)包括5个温度传感器,能方便快速测量和控制温度,温度测量分辨率达到0.1度C.CY8CKIT-025 EBK设计和CY8CKIT-030 PSoC 3开发板或CY8CKIT-001 PSoC开发板一起使用,提供完整的单片温度检测和控制解决方案.本文介绍了PSoC®5: CY8C52系列产品主要特性,功能框图,ARM Cortex-M3框图以及CY8CKIT-025 PSoC® 精密模拟温度传感器扩展板套件(EBK)主要特性,电路图,材料清单和PCB元件布局图.

With its unique array of configurable blocks, PSoC® 5 is a true system-level solution providing microcontroller unit (MCU), memory, analog, and digital peripheral functions in a single chip. The CY8C52 family offers a modern method of signal acquisition, signal processing, and control with high accuracy, high bandwidth, and high flexibility. Analog capability spans the range from thermocouples (near DC voltages) to ultrasonic signals. The CY8C52 family can handle dozens of data acquisition channels and analog inputs on every GPIO pin. The CY8C52 family is also a high-performance configurable digital system with some part numbers including interfaces such as USB and multimaster I2C. In addition to communication interfaces, the CY8C52 family has an easy to configure logic array, flexible routing to all I/O pins, and a high-performance 32-bit ARM® Cortex™-M3 microprocessor core. Designers can easily create system level designs using a rich library of prebuilt components and boolean primitives using PSoC Creator™, a hierarchical schematic design entry tool. The CY8C52 family provides unparalleled opportunities for analog and digital bill of materials integration while easily accommodating last minute design changes through simple firmware updates.

CY8C52主要特性:

 32-bit ARM Cortex-M3 CPU core

 DC to 40 MHz operation

 Flash program memory, up to 256 KB, 100,000 write cycles, 20-year retention and multiple security features

 Up to 64 KB SRAM memory

 128 bytes of cache memory

 2-KB electrically erasable programmable read-only memory (EEPROM) memory, 1 million cycles, and 20 years retention

 24-channel direct memory access (DMA) with multilayer AMBA high-performance bus (AHB) bus access

• Programmable chained descriptors and priorities

• High bandwidth 32-bit transfer support

 Low voltage, ultra low power

 Operating voltage range: 2.7 V to 5.5 V

 6 mA at 6 MHz

 Low power modes including:

• 2-μA sleep mode

• 300-nA hibernate mode with RAM retention

 Versatile I/O system

 46 to 70 I/Os (60 GPIOs, 8 SIOs, 2 USBIOs))

 Any GPIO to any digital or analog peripheral routability

 LCD direct drive from any GPIO, up to 46 × 16 segments

 CapSense® support from any GPIO

 1.2 V to 5.5 V I/O interface voltages, up to four domains

 Maskable, independent IRQ on any pin or port

 Schmitt trigger transistor-transistor logic (TTL) inputs

 All GPIOs configurable as open drain high/low, pull up/down, High-Z, or strong output

 25 mA sink on SIO

 Digital peripherals

 20 to 24 programmable logic device (PLD) based universal digital blocks (UDBs)

 Full-Speed (FS) USB 2.0 12 Mbps using a 24 MHz external oscillator

 Four 16-bit configurable timer, counter, and PWM blocks

 Library of standard peripherals

• 8-, 16-, 24-, and 32-bit timers, counters, and PWMs

• SPI, UART, and I2C

• Many others available in catalog

Library of advanced peripherals

• Cyclic redundancy check (CRC)

• Pseudo random sequence (PRS) generator

• Local interconnect network (LIN) bus 2.0

• Quadrature decoder

Analog peripherals (2.7 V  VDDA  5.5 V)

 1.024 V ±1% internal voltage reference

 Successive approximation register (SAR) analog-to-digital converter (ADC), 12-bit at 700 ksps

 One 8-bit, 5.5-Msps current DAC (IDAC) or 1-Msps voltage DAC (VDAC)

 Two comparators with 95-ns response time

 CapSense support

 Programming, debug, and trace

 Serial wire debug (SWD) and single-wire viewer (SWV) interfaces

 Cortex-M3 flash patch and breakpoint (FPB) block

 Cortex-M3 data watchpoint and trace (DWT) generates data trace information

 Cortex-M3 Instrumentation Trace Macrocell (ITM) can be used for printf-style debugging

 DWT and ITM blocks communicate with off-chip debug and trace systems via the SWV interface

 Bootloader programming supportable through I2C, SPI, UART, USB, and other interfaces

 Precision, programmable clocking

 3 to 24 MHz internal oscillator over full temperature and voltage range

 4 to 25 MHz crystal oscillator for crystal PPM accuracy

 Internal PLL clock generation up to 40 MHz

 32.768 kHz watch crystal oscillator

 Low power internal oscillator at 1, 33, and 100 kHz

 Temperature and packaging

 –40℃ to +85℃ degrees industrial temperature

 68-pin QFN and 100-pin TQFP package options

图1.CY8C52简化方框图:包括

 ARM Cortex-M3 CPU subsystem

 Nonvolatile subsystem

 Programming, debug, and test subsystem

 Inputs and outputs

 Clocking

 Power

 Digital subsystem

 Analog subsystem

图2.CY8C52中ARM Cortex-M3框图

CY8CKIT-025 PSoC® 精密模拟温度传感器扩展板套件(EBK)

The CY8CKIT-025 PSoC® Precision Analog Temperature Sensor Expansion Board Kit (EBK) includes 5 temperature sensors and examples projects to make temperature sensing and control design quick and easy. This kit enables the designer to measure temperature accurately to a resolution of 0.1℃.

The CY8CKIT-025 EBK is designed for use with the CY8CKIT-030 PSoC 3 Development Kit and the CY8CKIT-001 PSoC Development Kit (all sold separately). Combining CY8CKIT-025 EBK with a development kit provides a complete single chip temperature sensing and control solution.

CY8CKIT-025 EBK包括:

PT100 Class B Resistive Temperature Detector (RTD)

Type K Thermocouple

NTC Thermistor

2 Temperature Diodes (2N3904 transistors)

DS600 IC temperature sensor

Examples projects for temperature sensing measurement, combined temperature and voltage measurement and fan control

Includes a bonus CY8CKIT-012 PSoC Prototyping and Development Expansion Board

Quick Start Guide

Resource CD

温度传感器性能比较表: