Multi-kernel DSP (digital signal processing) circuit with error processing device and error processing method

Abstract

The invention provides a multi-kernel digital signal processing (DSP) circuit which comprises a plurality of DSP kernels, a system bus, a memory, a high speed interface, an interrupt controller and monitoring circuits, wherein the monitoring circuits are respectively corresponding to the DSP kernels and used for monitoring the running states of the DSP kernels; and when the running of one DSP kernel has errors, the monitoring circuit corresponding the DSP kernel having errors produces an interrupt signal, so that all error context information of the DSP kernel is reported to an upper computerby the high speed interface. The invention also provides a method for processing errors in the multi-kernel DSP circuit. By using the device and method provided by the invention, the hardware system is simplified, more error context information caused when the system has errors can be obtained, and the success ratio for reporting the context information by the system is improved.

Description

technical field [0001] The invention relates to the field of digital signal processing (DSP), in particular to a multi-core DSP circuit with an error processing device and an error processing method. Background technique [0002] Digital signal processing (DSP) systems are widely used in many fields. However, in the traditional embedded DSP system, once the DSP subsystem crashes or an error occurs, it is very difficult to analyze and locate the error because the internal information of the DSP is difficult to be obtained by the outside world. [0003] In existing solutions for analyzing and locating errors, in order to analyze and process errors, a hardware method is often used. This method needs to set up a dedicated physical channel, such as using a dedicated parallel port host computer interface, and connecting the host computer (such as CPU) with the DSP system. When an error occurs in the DSP system, the upper computer reads and writes the internal information of the ...

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Problems solved by technology

[0004] However, this will increase the hardware complexity of the embedded system, and the host computer often needs to understand the internal structure of a specific DSP to perform read and write operations, thus increasing the coupling of system development

Because the DSP is in a passive position, the information obtained by the host computer is always very limited, or it can only handle limited types of errors

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