The idt72235lb is a 2k 32bit first in first out buffer storage , which can be used to better the transmission . mainly recommend the dsp working process and designed the schematic document . at the end of this section is some program of the dsp control process , such as processor initialization , dma transmission , and d / a conversion control 软件部分主要是采用c语言编写了高速数据传输卡的dsp主程序并用汇编语言编写了初始化程序和dma传输程序,对所编写的软件使用合众达公司的仿真器seed - xdspp通过mpsd电缆连接c32demo板对所编写的软件进行了调试,测试结果反映了设计需要。
The hardware designing include the interface with engine controller , such as d / a conversion . we chose the ad75089 which was produced by ad corp . this is a parallel port digital to analog conversion , and i give the presentation about its structure and connection scheme . in order to resolve the contradiction between faster computation and slower display , a buffer storage also needed 第二部分详细陈述了高速数据传输卡的软、硬件设计过程,硬件设计包括dsp与pci总线的接口、 dsp与外部控制器的接口、以及电路卡上的扩展数据缓冲区的设计,并使用专门的工具软件protel绘出全部硬件电路的设计原理图。
(computer science) a part of RAM used for temporary storage of data that is waiting to be sent to a device; used to compensate for differences in the rate of flow of data between components of a computer system 同义词:buffer, buffer store,