专利检索 ap:("CRRC QINGDAO SIFANG ROLLING STOCK RES INST CO LTD") AND inv:"ZHANG XIAOSONG" 第 1 页

1.

发明公开
TIGERSHARC SERIES DSP START-UP MANAGEMENT CHIP AND METHOD 审中-公开

公开(公告)号：EP3236350A4

公开(公告)日：2018-02-28

申请号：EP16867758

申请日：2016-08-15

申请人： CRRC QINGDAO SIFANG ROLLING STOCK RES INST CO LTD

发明人： LI ZHEN , SUN GUOBIN , ZHANG XIAOSONG

IPC分类号： G06F9/44

CPC分类号： G06F9/4401 , G06F9/44 , G06F9/4406

摘要： A TigerSharc DSP boot management chip and the method thereof, the boot management chip comprises an interface unit, a two-port RAM unit, a management unit and a DSP download management unit; further comprises a flash drive unit and a NOR flash chip; the management unit is connected to the flash drive unit; the two-port RAM unit is connected to the NOR flash chip via the flash drive unit; and, the NOR flash chip is communicated with the DSP download management unit via the flash drive unit. The management unit provides two booting modes: booting via the NOR flash chip or booting via an external bus; the host boot startup method is improved and two booting program download methods are provides, which can greatly improve the booting speed of the TigerSharc DSP chip.