PROCESS FOR AUTOMATIC DYNAMIC RELOADING OF DATA FLOW PROCESSORS (DFPs) AND UNITS WITH TWO- OR THREE-DIMENSIONAL PROGRAMMABLE CELL ARCHITECTURES (FPGAs, DPGAs AND THE LIKE)

Abstract

In a data-processing method, first result data may be obtained using a plurality of configurable coarse-granular elements, the first result data may be written into a memory that includes spatially separate first and second memory areas and that is connected via a bus to the plurality of configurable coarse-granular elements, the first result data may be subsequently read out from the memory, and the first result data may be subsequently processed using the plurality of configurable coarse-granular elements. In a first configuration, the first memory area may be configured as a write memory, and the second memory area may be configured as a read memory. Subsequent to writing to and reading from the memory in accordance with the first configuration, the first memory area may be configured as a read memory, and the second memory area may be configured as a write memory.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. patent application Ser. No. 10 / 265,846, filed Oct. 7, 2002, which is a continuation of U.S. patent application Ser. No. 09 / 613,217, filed Jul. 10, 2000, now U.S. Pat. No. 6,477,643, which is a continuation of U.S. patent application Ser. No. 08 / 947,002 filed on Oct. 8, 1997, now U.S. Pat. No. 6,088,795, expressly incorporated herein by reference in the entirety.FIELD OF THE INVENTION[0002]The present invention is directed to a process for automatic dynamic reloading of data flow processors.BACKGROUND INFORMATION[0003]Programmable units presently used (DFPs, FPGAs—Field Programmable Gate Arrays) can be programmed in two different ways:[0004]one-time only, i.e., the configuration can no longer be changed after programming. All configured elements of the unit perform the same function over the entire period during which the application takes place.[0005]on site, i.e., the configuration can be change...

AI Technical Summary

Benefits of technology

[0013]The present invention makes it possible to reconfigure a programmable unit considerably more rapidly. The present invention allows different configurations of a programmable unit to be used in a flexible manner during operation without affecting or stopping the operability of the programmable unit. Unit configuration changes are performed simultaneously, so they are rapidly available without need for additional configuration data to be occasionally transmitted. The method can be used with all types of configurable elements of a configurable unit and with all types of configuration data, regardless of the purpose for which they are provided within the unit.

[0014]The present invention makes it possible to overcome the static limitations of conventional units and to improve the utilization of existing configurable elements. By introducing a buffer storage device, a plurality of different functions can be performed on the same data.

Problems solved by technology

Most units (in particular FPGA units) cannot be reconfigured during operation.

For reconfigurable units, data usually cannot be further processed while the unit is being reconfigured, and the time required is very long.

This process is slow and usually requires hundreds of milliseconds due to the limited band width accessing the external memory where the configuration data is stored, after which the programmable unit is available for the desired / programmed function as described in the configuration file.

The existing methods and options present a series of problems, such as:If a configuration in a DFP (see German Patent Application No.

Therefore it takes a very long time to configure a large unit and often makes it impossible to do it during operation or affects the function of the unit.When a unit is partially configured during operation, a central logic entity is always used, through which all reconfigurations are managed.

This requires considerable communication and synchronization resources.

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