ADIADuC模拟微控制器开发方案.docxVIP

ADI ADuC7060模拟微控制器开发方案关键字：工业控制,过程控制,传感器,数据采集ADI公司的ADuC7060/ADuC7061是低功耗全集成的8 kSPS,24位数据采集系统，在单芯片上集成高性能多通道Σ-Δ型模数转换器(ADC)，16位/32位ARM7TDMI? MCU和Flash/EE存储器,包括有4个定时器,高级矢量中断控制器,工作电压2.375 V至2.625 V，工作温度范围为?40℃至+125℃,主要用在工业自动化和过程控制,智能精密检测系统和4 mA至20 mA环路智能传感器。本文介绍了ADuC706x系列主要特性,功能框图,模拟框图以及ADuC7060评估板主要特性,电路图,材料清单和PCB元件布局图.The ADuC706x series are fully integrated, 8 kSPS, 24-bit data acqui-sition systems incorporating high performance multichannel sigma-delta (Σ-Δ) analog-to-digital converters (ADCs), 16-bit/ 32-bit ARM7TDMI?MCU, and Flash/EE memory on a single chip.?The ADCs consist of a primary ADC with two differential pairs or four single-ended channels and an auxiliary ADC with up to seven channels. The ADCs operate in single-ended or differential input mode. A single-channel buffered voltage output DAC is available on chip. The DAC output range is programmable to one of four voltage ranges.?The devices operate from an on-chip oscillator and a PLL gene-rating an internal high frequency clock up to 10.24 MHz. The microcontroller core is an ARM7TDMI, 16-bit/32-bit RISC machine offering up to 10 MIPS peak performance; 4 kB of SRAM and 32 kB of nonvolatile Flash/EE memory are provided on chip. The ARM7TDMI core views all memory and registers as a single linear array.?The ADuC706x contains four timers. Timer1 is a wake-up timer with the ability to bring the part out of power saving mode. Timer2 is configurable as a watchdog timer. A 16-bit PWM with six output channels is also provided. The ADuC706x contains an advanced interrupt controller. The vectored interrupt controller (VIC) allows every interrupt to be assigned a priority level. It also supports nested interrupts to a maximum level of eight per IRQ and FIQ. When IRQ and FIQ interrupt sources are combined, a total of 16 nested interrupt levels is supported. On-chip factory firmware supports in-circuit serial download via the UART serial interface ports and nonintrusive emulation via the JTAG interface. The parts operat