原标题：Cypress CY3280-22x45通用CapSense控制器开发方案

　　cypress公司的CY3280-22x45汽车级PSoC 可编程片上系统,包含多个可配置的模拟和数字逻辑模块，以及可编程互连。PSoC 采用功能强大的哈佛架构处理器,M8C处理器速度高达24MHz,8x8乘法器,32位累加器,可使用户能够根据每个应用的要求，来创建定制的外设配置, 具有广泛的应用。本文介绍了CY3280-22x45主要特性,方框图以及通用CapSense控制器开发套件主要特性,电路图,材料清单,PCB布局图和元件分布图.

　　PSoC 可编程片上系统系列产品包含许多器件。 这些器件旨在使用一个低成本的单芯片可编程组件取代多个基于 MCU 的传统系统组件。 PSoC 器件包含多个可配置的模拟和数字逻辑模块，以及可编程互连。 这种架构使得用户能够根据每个应用的要求，来创建定制的外设配置。 此外，在一系列方便易用的引脚布局和封装中还包含快速 CPU、闪速程序存储器、SRAM 数据存储器和可配置的 I/O。

　　CY3280-22x45主要特性:

　　■ Automotive Electronics Council (AEC) Q100 qualified

　　■ Powerful Harvard-architecture processor

　　❐ M8C processor speeds up to 24 MHz

　　❐ 8 × 8 multiply, 32-bit accumulate

　　❐ Low power at high speed

　　❐ Automotive A-grade: 3.0 V to 5.25 V operation at –40 ℃ to +85 ℃ temperature range

　　❐ Automotive E-grade: 4.75 V to 5.25 V operation at –40 ℃ to +125 ℃ temperature range

　　■ Advanced peripherals (PSoC® blocks)

　　❐ Six analog Type ‘E’ PSoC blocks provide:

　　• Up to four comparators with digital-to-analog converters (DAC) references

　　• Up to 10-bit single or dual analog-to-digital converters (ADCs)

　　❐ Up to eight digital PSoC blocks provide:

　　• 8 to 32-bit timers, counters, and pulse width modulators (PWMs)

　　• One-shot, multi-shot mode in timers and PWMs

　　• PWM with deadband in one digital block

　　• Shift register, cyclical redundancy check (CRC), and pseudo random sequence (PRS) modules

　　• Full- or half-duplex UARTs

　　• SPI masters or slaves, 8- to 16-bit variable data length

　　• Connectable to all general-purpose I/O (GPIO) pins

　　❐ Complex peripherals by combining blocks

　　❐ Powerful synchronization support, analog module operations can be synchronized by digital blocks or external signals.

　　■ High-speed 10-bit successive approximation register (SAR) ADC with sample and hold optimized for embedded control

　　■ Precision, programmable clocking

　　❐ Internal oscillator up to 24 MHz

　　❐ High accuracy 24 MHz with optional 32-kHz crystal and phase locked loop (PLL)

　　❐ Optional external oscillator, up to 24 MHz

　　❐ Internal low speed, low-power oscillator for watchdog and sleep functionality

　　■ Flexible on-chip memory

　　❐ Up to 16 KB flash program storage, 1000 erase/write cycles

　　❐ Up to 1 KB SRAM data storage

　　❐ In-System Serial Programming (ISSP)

　　❐ Partial flash updates

　　❐ Flexible protection modes

　　❐ EEPROM emulation in flash

　　■ Optimized CapSense® resource

　　❐ Supports two CapSense channels with simultaneous scanning

　　❐ Two current DACs provide programmable sensor tuning in firmware

　　❐ Two dedicated clock resources for CapSense Features

　　■ Automotive Electronics Council (AEC) Q100 qualified

　　■ Powerful Harvard-architecture processor

　　❐ M8C processor speeds up to 24 MHz

　　❐ 8 × 8 multiply, 32-bit accumulate

　　❐ Low power at high speed

　　❐ Automotive A-grade: 3.0 V to 5.25 V operation at –40 ℃ to +85 ℃ temperature range

　　❐ Automotive E-grade: 4.75 V to 5.25 V operation at –40 ℃ to +125 ℃ temperature range

　　■ Advanced peripherals (PSoC® blocks)

　　❐ Six analog Type ‘E’ PSoC blocks provide:

　　• Up to four comparators with digital-to-analog converters (DAC) references

　　• Up to 10-bit single or dual analog-to-digital converters (ADCs)

　　❐ Up to eight digital PSoC blocks provide:

　　• 8 to 32-bit timers, counters, and pulse width modulators (PWMs)

　　• One-shot, multi-shot mode in timers and PWMs

　　• PWM with deadband in one digital block

　　• Shift register, cyclical redundancy check (CRC), and pseudo random sequence (PRS) modules

　　• Full- or half-duplex UARTs

　　• SPI masters or slaves, 8- to 16-bit variable data length

　　• Connectable to all general-purpose I/O (GPIO) pins

　　❐ Complex peripherals by combining blocks

　　❐ Powerful synchronization support, analog module operations can be synchronized by digital blocks or external signals.

　　■ High-speed 10-bit successive approximation register (SAR) ADC with sample and hold optimized for embedded control

　　■ Precision, programmable clocking

　　❐ Internal oscillator up to 24 MHz

　　❐ High accuracy 24 MHz with optional 32-kHz crystal and phase locked loop (PLL)

　　❐ Optional external oscillator, up to 24 MHz

　　❐ Internal low speed, low-power oscillator for watchdog and sleep functionality

　　■ Flexible on-chip memory

　　❐ Up to 16 KB flash program storage, 1000 erase/write cycles

　　❐ Up to 1 KB SRAM data storage

　　❐ In-System Serial Programming (ISSP)

　　❐ Partial flash updates

　　❐ Flexible protection modes

　　❐ EEPROM emulation in flash

　　■ Optimized CapSense® resource

　　❐ Supports two CapSense channels with simultaneous scanning

　　❐ Two current DACs provide programmable sensor tuning in firmware

　　❐ Two dedicated clock resources for CapSense

　　图1.CY3280-22x45方框图

　　CY3280-22x45通用CapSense控制器开发套件

　　This kit showcases the features of CY3280-22X45. The CY3280-22X45 family of PSoC® includes the following devices: CY8C21345-24SXI, CY8C22345-24SXI, and CY8C22545-24AXI. The 56-pin OCD part is assembled in the CY3280-22X45 Universal CapSense Controller Board. This part is used only for in-circuit debugging.

　　The CapSense feature of CY8C22X45 can be implemented with the CY3280-SLM Universal CapSense Linear Slider Module. The two boards are connected by a 44-pin connector. The other features of CY3280-22X45 can be implemented with the CY3280-CPM1 Universal CapSense Plus Controller Module. The two boards are connected by a 40-pin connector. The CY3280-SLM Universal CapSense Linear Slider Module and the CY3280-CPM1 Universal CapSense Plus Controller Module can be connected with the CY3280-22X45 Universal CapSense Controller Board simultaneously.

　　图2.CapSense控制器开发板外形图

　　CY3280-22X45 Universal CapSense Controller Board

　　CapSense控制器开发套件包括:

　　■CY3280-22X45 Universal CapSense Controller Board

　　■Printed Documents

　　■CY3280-22X45 Universal CapSense Controller Board CD

　　■CY3240-I2CUSB Board

　　■CY3210-MiniProg1 Programmer

　　CapSense控制器开发板材料清单(BOM):