Freescale MCF数字信号控制器开发方案.docx

Freescale MC56F8257数字信号控制器开发方案关键字：工业控制,智能传感器,马达控制,电动工具Freescale公司的MC56F825x/MC56F824x是基于56800E核的数字信号控制器(DSC),集成了DSP的处理功能和MCU功能以及灵活的丰富外设,便于创建高性价比的解决方案.60MHz时的性能为60MIPS,工作电压3.0V-3.6V,工作温度–40℃到+105 ℃,主要用于工业控制,家用电器,智能传感器,消防和安全系统,太阳能逆变器,电池充电和管理,开关电源和管理,马达控制,电表,手持电动工具,医疗设备,仪表和照明镇流器等.本文介绍了MC56F825x/MC56F824x主要特性,框图和56800E核框图, MC56F8257 Tower MCU模块TWR-56F8257主要特性,方框图,电路图和材料清单.The MC56F825x/MC56F824x is a member of the 56800E core-based family of digital signal controllers (DSCs). It combines, on a single chip, the processing power of a DSP and the functionality of a microcontroller with a flexible set of peripherals to create a cost-effective solution. Because of its low cost, configuration flexibility, and compact program code, it is well-suited for many applications. The MC56F825x/MC56F824x includes many peripherals that are especially useful for cost-sensitive applications, including:? Industrial control? Home appliances? Smart sensors? Fire and security systems? Solar inverters? Battery chargers and management? Switched-mode power supplies and power management? Power metering? Motor control (ACIM, BLDC, PMSM, SR, and stepper)? Handheld power tools? Arc detection? Medical devices/equipment? Instrumentation? Lighting ballastThe 56800E core is based on a modified Harvard-style architecture consisting of three execution units operating in parallel, allowing as many as six operations per instruction cycle. The MCU-style programming model and optimized instruction set allow straightforward generation of efficient, compact DSP and control code. The instruction set is also highly efficient for C compilers to enable rapid development of optimized control applications.The MC56F825x/MC56F824x supports program execution from internal memories. Two data operands per instruction cycle can be accessed from the on-chip data RAM. A full set of programmable peripherals supports various applications.Each peripheral can be independently shut down to save power. Any pin, except Power pins a