Invention Grant
US08495545B2 Using direct memory access to initialize a programmable logic device
有权
使用直接存储器访问来初始化可编程逻辑器件
- Patent Title: Using direct memory access to initialize a programmable logic device
- Patent Title (中): 使用直接存储器访问来初始化可编程逻辑器件
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Application No.: US13547485Application Date: 2012-07-12
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Publication No.: US08495545B2Publication Date: 2013-07-23
- Inventor: Thomas D. Needham , Andrew R. Ranck
- Applicant: Thomas D. Needham , Andrew R. Ranck
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Cantor Colburn LLP
- Agent William A. Kinnaman, Jr.
- Main IPC: G06F17/50
- IPC: G06F17/50
Abstract:
An embodiment includes using direct memory access (DMA) to initialize a programmable logic device (PLD). An aspect of the invention includes manipulating a control line of the PLD to configure the PLD in a programming mode. PLD programming data is received at a PLD interface from a DMA control at a DMA speed. The PLD interface controls access of a processor and the DMA control to a programming port on the PLD. The PLD interface includes a data buffer and pacing logic. The PLD programming data is written to the data buffer and read from the data buffer. The PLD programming data transmitted to the programming port on the PLD at a PLD programming speed. The pacing logic of the PLD interface controls the data transmission at the PLD programming speed, and the DMA control is configured to transform the PLD programming data while the processor performs other processing tasks.
Public/Granted literature
- US20120278522A1 USING DIRECT MEMORY ACCESS TO INITIALIZE A PROGRAMMABLE LOGIC DEVICE Public/Granted day:2012-11-01
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