HED43B125 选择放心 诚信交易

PXI-4060
PXI-4060
PXI-4060
PXI-4060
PXI-4060
PXI-4060
1C31224G01
1C31224G01
1C31224G01
1C31224G01
6ES7460-3AA01-0AB0
70085-1010-330
HE670ADC830
1746-A13
140ARI03010

分类: 标签:

描述

PDIUSBD12的固件设计成完全的中断驱动,当CPU处理前台任务时,USB的传输可在后台进行;后台中断服务程序和前台主程序循环之间的数据交换可以通过事件标志和数据缓冲区来实现。当PDIUSBD12从USB收到一个数据包,即对CPU产生一个中断请求,CPU立刻响应中断。在中断服务程序中,固件将数据包从PDIUSBD12内部缓冲区移到循环数据缓冲区,并将PDIUSBD12的内部缓冲区清零,以便接收新的数据包,使CPU可以继续执行当前的前台任务直到完成。本文利用PDIUSBD12的端点1进行命令的传输和应答,端点1每次接收计算机发送过来的8B指令,其指令格式如表2所示。例如,接收到十六进制码5201000300070050,表示读24C01器件从03字节开始的7个字节的数据。52H为R的ASCII码,57H为W的ASCII码。端点2用于数据的传输。

NetApp FAS270C FILER HEAD 14 X 276A 300GB 10K 2G FC
NetApp DS14mk2 AT Shelf w/ 14 X268A-R5 750GB SATA
NetApp 14 X268A-R5 750GB SATA DS14mk2 AT Shelf
NETAPP FAS3020C Cluster 2 Filer Heads FAS3020 Clustered
NetApp F825 Filer Head Unit
NetApp FAS3050 Filer DS14MK2 14x 144GB 10K X274A-R5 “
NetApp FAS3050 Filer w/ DS14MK2 14x 144GB 10K X274A-R5
NetApp FAS3050 Filer w/ DS14MK2 14 144GB 10K X274A-R5
NetApp 14 x 750gb MK2 AT Disk Shelf – X268, X268A disks
NetApp R200 NearStore Head Unit 6GB QLA2342 2X3GHz XEON
NetApp FAS3020 w/(2) Shelves of 300GB 10K FC Drives
NetApp NetCache C3300 6 X 72GB 15k FC
NetApp NetCache C3300 6 X 144GB 10K FC
NetApp C2100 NetCache Proxy Server w/ 7x 72GB HDD
NetApp NetCache C3300 6 X 72GB 15K FC
NetApp FAS270C with licenses and 2TB FC Storage