針對TI公司最新發布的TMS320C6678 dsP設計出一種實用有效的電源。采用統一的12 V電源供電,制作出滿足電壓幅值要求與時序要求的開關電源。該設計主要由各類電源轉換電路組成,并通過使用Fusion Digital Power Designer軟件對電源芯片進行編程。仿真結果表明,該電源工作穩定,各方面的參數均符合要求。
在開放式數控系統結構模型的基礎上,研究了基于ISA總線的dsP通信控制原理。采用中斷方式完成了PC機和dsP之間的通信。介紹了以DriverWorks為工具開發ISA設備WDM驅動程序的方法,探討了中斷處理、驅動程序與應用程序之間的通信,簡要說明了驅動程序的安裝與調試。通過調試,系統設計運行穩定。
Abstract:
The ISA bus and dsP correspondence control principle is investigated in the basis of the existing open architecture numerical control system.The interrupt method is used to realize the communication between PC and dsP based on the ISA bus.The methods of WDM driver exploitation for ISA device using Driver Works are introduced.The main process of driver program and the keys such as handle interrupt and the communication between the drivers and application are presented.And how to debug and install the drive is explained.