Method and device for digital signal processor executing debugging and enquiry command

Abstract

A method for executing debug enquiry command of a digital signal processor (DSP) is used in a debug system comprising a debug machine and a DSP. The invention is characterized in that: the DSP side is provided with a main control processor; the debug machine transmits the debug enquiry command of the DSP to the main control processor through a network; the main control processor acquires the result of the debug enquiry command from the DSP and returns the result to the debug machine. Meanwhile, the invention also discloses a device for executing debug enquiry command of a DSP which is used in a debug system comprising a debug machine and a DSP, wherein, the device comprises a main control processor and a hardware channel; the main control processor, which is arranged at the DSP side, receives the debug enquiry command of the DSP send by the debug machine and acquires the result of the debug enquiry command from the DSP; moreover, the main control processor communicates with the debugged DSP through the hardware channel.

Description

technical field [0001] The invention relates to debugging of an embedded system, in particular to a method and a device for executing a debugging query command for a digital signal processor (DSP, Digital Signal Processor). Background technique [0002] In recent years, DSP has been more and more widely used in the development of embedded systems because of its efficient signal processing ability and computing ability. In the prior art, the software debugging that carries out on DSP usually adopts the method that connects special emulator and downloads debugging code to the DSP of target board card and debugs, as figure 1 As shown, it is a schematic diagram of the emulator debugging method in the prior art, the connection between the PC debugger 101 and the emulator 102, and the connection between the emulator 102 and the debugged processor 103 are all non-network connections, such as the PC debugger 101 and the emulator 102 The emulator 102 is connected with the debugged p...

AI Technical Summary

Problems solved by technology

[0003] The above widely used debugging methods have the following disadvantages: because they cannot be connected to the network, they can only be debugged locally, and cannot be remotely debugged through the network; the emulator is expensive, and an emulator can usually only debug a piece of DSP, or the same series of DSP, it cannot debug multiple DSPs at the same time or several DSPs connected together through the JATG interface chain on one board, and cannot support one emulator to debug DSPs on multiple boards at the same time; because the DSP cannot be connected to the test line. Connect to the emulator for debugging, so it is only applicable to the offline debugging stage, not to the integration testing stage; because the existing debugging technology does not have the function of debugging agent, it cannot dynamically issue debugging query commands and execute function functions; only variables can be queried Or the value of the memory, it is impossible to realize the automatic analysis of the system running status; only to stop the DSP running at the break point to observe the value of the variable, this debugging method will interfere with the normal operation of the program

[0005] 1. Since many DSPs do not have network port peripherals, network debugging cannot be performed;

[0006] 2. It is not possible to debug multiple DSPs at the same time;

[0007] 3. Due to the limited memory resources of the DSP, it cannot support a huge network communication protocol stack, so many debugging functions cannot be applied, and the system running status cannot be automatically debugged

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