Atmel SAM4S无线无源红外移动检测参考设计
Atmel公司的SAM4S是基于高性能32位ARM® Cortex®-M4 RISC处理器的闪存MCU,工作频率120MHz,闪存高达2048KB,SRAM高达160KB,外设包括带嵌入收发器的全速USB器件端口,用于SDIO/SD/MMC的高速MCI,具有静态存储器控制器的外接总线接口等.工作电压1.62V- 3.6V,主要用在红外移动检测,消费类电子,工业控制,PC外设等.本文介绍了SAM4S系列主要特性,框图,以及无线无源红外(PIR)移动检测参考设计主要特性,框图,电路图,材料清单和PCB元件布局图.
The Atmel SAM4S series is a member of a family of Flash microcontrollers based on the high-performance 32-bit ARM® Cortex®-M4 RISC processor. It operates at a maximum speed of 120 MHz and features up to 2048 Kbytes of Flash, with optional dual-bank implementation and cache memory, and up to 160 Kbytes of SRAM. The peripheral set includes a full-speed USB Device port with embedded transceiver, a high-speed MCI for SDIO/SD/MMC, an External Bus Interface featuring a Static Memory Controller to connect to SRAM, PSRAM, NOR Flash, LCD Module and NAND Flash, two USARTs, two UARTs, two TWIs, three SPIs, one I2S, as well as one PWM timer, two three-channel general-purpose 16-bit timers (with stepper motor and quadrature decoder logic support), one RTC, one 12-bit ADC, one 12-bit DAC and one analog comparator.
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