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TI公司的Stellaris LM4F232H5QD是{方案}ARM Cortex™-M4F处理器核的32位MCU,工作频率80MHz,集成了系统定时器(SysTick),嵌套的向量中断控制器(NVIC),带时钟门的唤醒中断控制器(WIC),存储器掩护单位(MPU), IEEE754兼容的单精度浮点单位(FPU)等,用于外设的8/16/32位专用并行总线,支持SDRAM,SRAM/闪存,FPGA和CPLD,主要用在低功耗手持智能设备,游戏机,家庭和商用定点监督和控制,运动控制,医疗仪器,测试丈量设备,工厂自动化,防火和安全系统,智能电网,智能照明控制和交通.本京电港论坛文章先容了LM4F232H5QD MCU主要特点和方框架图, 评估板EK-LM4F232主要特点和方框架图,电路原理图纸,质料清单和PCB线路板元件结构图. Texas Instruments is the industry leader in bringing 32-bit capabilities and the full benefits of ARM? Cortex™-M-based microcontrollers to the broadest reach of the microcontroller market. For current users of 8- and 16-bit MCUs, Stellaris?with Cortex-M offers a direct path to the strongest ecosystem of development tools, software and knowledge in the industry. Designers who migrate to Stellaris benefit from great tools, small code footprint and outstanding performance. Even more important, designers can enter the ARM ecosystem with full confidence in a compatible roadmap from $1 to 1 GHz. With blazingly-fast responsiveness, Thumb-2 technology combines both 16-bit and 32-bit instructions to deliver the best balance of code density and performance. Thumb-2 uses 26 percent less memory than pure 32-bit code to reduce system cost while delivering 25 percent better performance. The Texas Instruments Stellaris family of microcontrollers brings high-performance 32-bit computing to cost-sensitive embedded microcontroller applications. The Stellaris LM4F series of ARM Cortex-M4 microcontrollers provides top performance and advanced integration. The product family is positioned for cost-conscious applications requiring significant control processing and connectivity capabilities such as: ■ Low power, hand-held smart devices ■ Gaming equipment ■ Home and commercial site monitoring and control ■ Motion control ■ Medical instrumentation ■ Test and measurement equipment ■ Factory automation ■ Fire and security ■ Smart Energy/Smart Grid solutions ■ Intelligent lighting control ■ Transportation Stellaris® LM4F232评估板EK-LM4F232 The Stellaris® LM4F232 Evaluation Board (EK-LM4F232) is an evaluation platform for the Stellaris LM4F232H5QD ARM® Cortex™-M4F-based microcontroller. The evaluation board’s design highlights the LM4F232H5QD microcontroller’s USB 2.0 On-The-Go/Host/Device (USB OTG/Host/Device) interface, 12-bit Analog-to-Digital Converter (ADC), Real-Time Clock (RTC), and battery-backed Hibernation module.
评估板EK-LM4F232包罗: The EK-LM4F232 evaluation kit comes with the following:
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