1756-IB16IF
1756-IB16IF
1756-IB16IF
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【品牌】Allen-Bradley罗克韦尔、ABB、本特利Bently 3500系统卡件、GE、艾默生西屋等模块卡件
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硬件抽象层(HAL)完成了对硬件模块接口的进一步封装,其中包括MCU内部总线类设备及MCU外部设备,硬件抽象层(HAL)作为BSP的上一层,及应用支持子层的下一层,是整个系统架构非常关键的一层,HAL实现了对底层设备的封装,为应用支持子层及系统架构中其它功能模块提供统一的接口。为实现该功能及代码的通用性,需要对每一个软硬件模块进行唯一编码,通过设备编码实现对不同设备的区别,根据设备编码通过回调函数的动态映射实现同一设备不同的操作。
根据仪表的特征,可以将对设备的操作抽象成一些子操作接口,将这些子操作统一到一个结构中去来实现对上层接口的统一。如对常规设备的操作可以抽象成打开、读、写、休眠、诊断、关闭6个子操作接口,硬件抽象层常规设备接口设计如图2-2所示,在编写设备抽象层代码时,必须将BSP层接口抽象出以上6种接口供应用支持子层及其它功能模块使用,设备操作结构设计如下:
Struct Hal_Dev{.DEV_CODE,.read,.write,.open,.close,.diagnostic,.sleep}
图2-2 硬件抽象层常规设备结构接口设计图
在实际编写硬件抽象层驱动式,可通过open函数来挂载不同的操作接口。例如应用支持子层如果需要对硬件抽象层传感器模块中的某一子设备进行操作时,首先将该子设备的编码(设备编码是全局唯一的)传入open函数,open函数则根据唯一编码查找到该设备的操作接口并将其地址赋值给结构中的接口。
2.1.2 硬件抽象层中断处理接口
为及时响应用户需求,硬件抽象层可对红外接口、通讯模块接口提供了中断处理机制,涉及中断处理的模块有红外通讯模块、本地通讯模块及远程通信模块等。在本次系统架构设计中,中断只有定时器中断和UART数据接收中断两种,定时器中断用于驱动事件运转,UART中断发生时用于搬运UART缓冲区中的数据至数据区。
KLA-Tencor SLX Reflected Light Assy 760-333022-000
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KLA-Tencor Lower Octopole/Wein Lens 780-14108-000
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KLA-Tencor SLX Relay/M5 Assembly 760-333019-001
KLA-Tencor Lower Octopole/Wein Lens 780-14108-000
KLA-Tencor Lower Octopole/Wein Lens 780-14108-000
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KLA-Tencor CRS1010 Laser Power Board 0046591-000
KLA-Tencor Scintillator W/ Case 780-08986-000
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KLA-Tencor Tropel Lens Assy. 0099748-000
KLA-Tencor Tropel Lens Assy. 0099750-000
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KLA Tencor Illumination Control 710-713250-01
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KLA-Tencor AIT/UV Laser Servo Detector 0099572-000 New
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KLA Tencor Cassette Controller Board 710-711879-01
KLA-Tencor XP Objective Lens 0110155-000 Untested
KLA-Tencor SLX Objective Mount 760-333005-000 Untested
KLA-Tencor SLX Objective Lens 760-334096-000 Untested
KLA Tencor 710-710112-01 Mechanical Drive Board
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KLA Tencor Instruments PN: 080810 PCB ASSY, SFS-4500
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COMDEL CPS SERIES RF GENERATOR KLA TENCOR POWER SUPPLY
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JDS Uniphase 2214-30SLQTA Laser, KLA-Tencor 0105128-000
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