CN104133751A - Chip debugging method and chip - Google Patents

Abstract

The invention discloses a chip, comprising: a register agent module, a debugging interface module and a plurality of bottom modules; the bottom module is used to generate a corresponding error indication signal and send it to the register agent module if it detects that the bottom module is working abnormally. Error notification; the register agent module is used to record error information and send an error report to the upper computer if it receives an error notification sent by the underlying module; if it receives a register access command sent by the upper computer, it reads the corresponding register , return the reading result to the upper computer; the debugging interface module is used to connect the chip and the upper computer, and forward information between the register agent module and the upper computer. The invention can quickly and accurately locate the bug position in the process of debugging the chip, improve the debugging efficiency, and realize real-time monitoring of the running state of the chip. The invention also discloses a method for debugging the chip.

Description

A method for debugging a chip and the chip

technical field

The invention relates to the field of integrated circuit design, in particular to a method for monitoring a chip and the chip.

Background technique

With the development of semiconductor technology, integrated circuits continue to develop towards smaller dimensions, so that each chip can package more circuits, which makes the logic of integrated circuit design more and more complicated. When a bug occurs in the design and debugging process, the precise It is difficult to locate the cause of the bug, which reduces the efficiency of debugging.

Therefore, how to accurately locate bugs after system debugging has become the key to affecting the project process.

Contents of the invention

The technical problem to be solved by the present invention is to provide a method for debugging the chip and the chip, which can quickly and accurately locate the bug position during the debugging process of the chip, improve the debugging efficiency, and realize real-time monitoring of the running state of the chip.

In order to solve the above technical problems, the present invention provides a chip, including: a register agent module, a debugging interface module and a plurality of bottom modules;

The underlying module is used to generate a corresponding error indication signal and send an error notification to the register agent module if it detects that the underlying module is working abnormally;

The register agent module is used to record the error information and send an error report to the upper computer if it receives an error notification sent by the underlying module; The machine returns the read result;

The debugging interface module is used to connect the chip and the upper computer, and forward information between the register agent module and the upper computer.

The chip further includes the following features:

The reading result indicates the information of the underlying module that is working abnormally and the abnormal type information.

Further, the chip also includes the following features:

The register proxy module is further configured to write a corresponding register to perform abnormal recovery processing on the chip if it receives a register control instruction sent by the host computer.

Further, the chip also includes the following features:

The underlying module is used to generate a corresponding error indication signal if it detects that the underlying module is working abnormally, including:

If it is detected that the underlying module is working abnormally, the position corresponding to the abnormal type in the local error register of the underlying module is set; wherein, each bit in the local error register corresponds to an abnormal type;

The register proxy module is used to record error information if an error notification sent by the underlying module is received, including:

If the error notification sent by the bottom module is received, the bit corresponding to the bottom module in the global error register is set; wherein, each bit in the global error register corresponds to a bottom module.

Further, the chip also includes the following features:

The register proxy module is used to read the corresponding register and return the operation result to the host computer if it receives the register access instruction sent by the host computer, including:

receiving an instruction from the host computer to access the global error register, reading the value of the global error register, and returning the value to the host computer;

An instruction for accessing a local error register of a bottom module sent by the host computer is received, the value of the local error register is read, and the value is returned to the host computer.

Further, the chip also includes the following features:

The debugging interface module is used to connect the chip and the upper computer, including: connecting the chip and the upper computer by using a JTAG interface or a serial port.

In order to solve the above technical problems, the present invention also provides a method for debugging a chip, the chip comprising: a register agent module, a debugging interface module and a plurality of bottom modules, the method comprising:

If the underlying module detects that the underlying module is working abnormally, it will generate a corresponding error indication signal and send an error notification to the register agent module;

If the register agent module receives the error notification sent by the underlying module, it will record the error information and send an error report to the upper computer through the debugging interface module;

If the host computer receives an error report from the chip, it sends a register access instruction to the register proxy module through the debugging interface module;

If the register proxy module receives a register access instruction from the host computer, it reads the corresponding register and returns the read result to the host computer;

Wherein, the debugging interface module is used to connect the chip and the upper computer, and forward information between the register agent module and the upper computer.

Further, the method also includes the following features:

The reading result indicates the information of the underlying module that is working abnormally and the abnormal type information.

Further, the method also includes the following features:

If the underlying module detects that the underlying module is working abnormally, it will generate a corresponding error indication signal, including:

If the underlying module detects that the underlying module is working abnormally, the position corresponding to the abnormal type in the local error register of the underlying module is set; wherein, each bit in the local error register corresponds to an abnormal type;

If the register agent module receives the error notification sent by the underlying module, it will record the error information, including:

If the register agent module receives the error notification sent by the bottom module, it will set the position corresponding to the bottom module in the global error register; wherein, each bit in the global error register corresponds to a bottom module.

Further, the method also includes the following features:

If the register proxy module receives a register access instruction from the host computer, it will read the corresponding register and return the read result to the host computer, including:

The register proxy module receives an instruction to access the global error register sent by the host computer, reads the value of the global error register, and returns the value to the host computer;

The register proxy module receives an instruction from the upper computer to access a local error register of a certain underlying module, reads the value of the local error register, and returns the value to the upper computer.

Further, the method also includes the following features:

After the host computer receives the reading result returned by the chip, it also includes:

The host computer sends register control instructions to the register proxy module through the debugging interface module;

If the register proxy module receives the register control instruction sent by the host computer, it will write into the corresponding register to perform abnormal recovery processing on the chip.

Further, the method also includes the following features:

The debugging interface module connects the chip and the upper computer by using a JTAG interface or a serial port.

Compared with the prior art, the present invention provides a method for debugging a chip and the chip. If the underlying module in the chip detects an abnormal operation, it will generate an error indication signal and notify the register agent module in the chip. The register agent module After receiving the notification, record the error information and send an error report to the upper computer through the debugging interface module, and then if it receives a register access/control command sent by the upper computer, it will read/write the corresponding register and return to the upper computer. result. The invention can quickly and accurately locate the bug position in the process of debugging the chip, improve the debugging efficiency, and realize real-time monitoring of the running state of the chip.

Description of drawings

FIG. 1 is a schematic structural diagram of a chip according to an embodiment of the present invention.

FIG. 2 is a flowchart of a method for debugging a chip according to an embodiment of the present invention.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention more clear, the embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined arbitrarily with each other.

As shown in FIG. 1, the embodiment of the present invention provides a chip, including: a register agent module, a debugging interface module and a plurality of underlying modules;

The underlying module is used to generate a corresponding error indication signal and send an error notification to the register agent module if it detects that the underlying module is working abnormally;

The register agent module is used to record the error information and send an error report to the upper computer if it receives an error notification sent by the underlying module; The machine returns the read result;

The debugging interface module is used to connect the chip and the upper computer, and forward information between the register agent module and the upper computer.

The chip further includes the following features:

Among them, the underlying module can know whether it is working abnormally by checking the status of each register. For example, if the underlying module checks that the FIFO register overflows, it will judge that the work is abnormal.

Preferably, the reading result indicates the information of the underlying module that is working abnormally and the abnormal type information. That is, the register access instruction is used to obtain the information of the underlying module that is working abnormally and the abnormal type information;

Preferably, the register agent module is further configured to, if receiving a register control instruction sent by the host computer, write to the corresponding register to perform exception recovery processing on the chip.

Preferably, the underlying module is used to generate a corresponding error indication signal if it detects that the underlying module is working abnormally, including:

If it is detected that the underlying module is working abnormally, the position corresponding to the abnormal type in the local error register of the underlying module is set; wherein, each bit in the local error register corresponds to an abnormal type; that is , the local error register is used to indicate whether the underlying module is working abnormally and what types of abnormalities have occurred.

Preferably, the register proxy module is configured to record error information if receiving an error notification sent by the underlying module, including:

If the error notification sent by the bottom module is received, the position corresponding to the bottom module in the global error register is set; wherein, each bit in the global error register corresponds to a bottom module; that is, the global error register It is used to indicate whether there is an abnormality in the work of each underlying module;

Preferably, the register agent module is used to read the corresponding register and return the operation result to the host computer if it receives the register access instruction sent by the host computer, including:

receiving an instruction from the host computer to access the global error register, reading the value of the global error register, and returning the value to the host computer;

An instruction for accessing a local error register of a bottom module sent by the host computer is received, the value of the local error register is read, and the value is returned to the host computer.

Wherein, the register proxy module is used to write the corresponding register to perform abnormal recovery processing on the chip if receiving the register control instruction sent by the host computer, including:

If the register control instruction sent by the host computer is received, and the instruction carries the address of a certain register and the data to be written, the data to be written is written into the register to perform abnormal recovery processing on the chip, such as If the writing is successful, a control success response is returned to the host computer.

Preferably, the debugging interface module, used to connect the chip and the host computer, includes: connecting the chip and the host computer by using a JTAG interface or a serial port.

As shown in FIG. 2, the embodiment of the present invention provides a method for debugging a chip. The chip includes: a register agent module, a debugging interface module, and a plurality of underlying modules. The method includes:

If the underlying module detects that the underlying module is working abnormally, it will generate a corresponding error indication signal and send an error notification to the register agent module;

If the register agent module receives the error notification sent by the underlying module, it will record the error information and send an error report to the upper computer through the debugging interface module;

If the host computer receives an error report from the chip, it sends a register access instruction to the register proxy module through the debugging interface module;

If the register proxy module receives a register access instruction from the host computer, it reads the corresponding register and returns the read result to the host computer;

Wherein, the debugging interface module is used to connect the chip and the upper computer, and forward information between the register agent module and the upper computer.

The method further includes the following features:

Preferably, the debugging interface module is connected to the chip and the host computer by using a JTAG interface or a serial port.

Preferably, the reading result indicates the information of the underlying module that is working abnormally and the abnormal type information.

Preferably, if the underlying module detects that the underlying module is working abnormally, it will generate a corresponding error indication signal, including:

If the underlying module detects that the underlying module is working abnormally, the position corresponding to the abnormal type in the local error register of the underlying module is set; wherein, each bit in the local error register corresponds to an abnormal type;

Preferably, if the register agent module receives the error notification sent by the underlying module, it will record the error information, including:

If the register agent module receives the error notification sent by the bottom module, it will set the position corresponding to the bottom module in the global error register; wherein, each bit in the global error register corresponds to a bottom module;

Preferably, if the register proxy module receives a register access instruction from the host computer, it performs a read operation on the corresponding register, and returns a read result to the host computer, including:

The register proxy module receives an instruction to access the global error register sent by the host computer, reads the value of the global error register, and returns the value to the host computer;

The register proxy module receives an instruction from the upper computer to access a local error register of a certain underlying module, reads the value of the local error register, and returns the value to the upper computer.

Preferably, after the host computer receives the read result returned by the chip, it also includes:

The host computer sends register control instructions to the register proxy module through the debugging interface module;

If the register proxy module receives the register control instruction sent by the host computer, it will write into the corresponding register to perform abnormal recovery processing on the chip.

Wherein, if the register proxy module receives the register control instruction sent by the host computer, it will write the corresponding register to perform abnormal recovery processing on the chip, including:

If the register proxy module receives a register control instruction sent by the host computer, the instruction carries the address of a certain register and the data to be written, then writes the data to be written into the register to perform abnormal recovery on the chip Processing, if the writing is successful, return a control success response to the host computer.

A kind of method and chip that above-mentioned embodiment provides to debug chip, if the underlying module in the chip detects abnormal operation, then produce error indication signal and notify the register agent module in the chip, the register agent module records error after receiving the notification Information and send an error report to the upper computer through the debugging interface module, and then if the register access/control instruction sent by the upper computer is received, the corresponding register is read/written, and the operation result is returned to the upper computer. The above method and chip can quickly and accurately locate the bug position during the debugging process of the chip, improve the debugging efficiency, and realize real-time monitoring of the running state of the chip.

Those skilled in the art can understand that all or part of the steps in the above method can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a magnetic disk or an optical disk, and the like. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module/unit in the above embodiments can be implemented in the form of hardware, or can be implemented in the form of software function modules. The form is realized. The present invention is not limited to any specific combination of hardware and software.

It should be noted that the present invention can also have other various embodiments, without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and deformations according to the present invention, but these Corresponding changes and deformations should belong to the scope of protection of the appended claims of the present invention.

Claims (12)

1. a chip, comprising: register proxy module, debugging interface module and multiple bottom module;

Bottom module, for as this bottom module operation irregularity detected, produces corresponding error indication signal, sends error notification to register proxy module;

Register proxy module, for the error notification sending as received bottom module, misregistration information, sends error reporting to host computer; As receive the register access instruction that host computer sends, and corresponding registers is carried out to read operation, return to reading result to host computer;

Debugging interface module, for connecting described chip and host computer, forwarding information between described register proxy module and described host computer.

2. chip as claimed in claim 1, is characterized in that:

Information and the Exception Type information of the bottom module of described reading result instruction operation irregularity.

3. chip as claimed in claim 1, is characterized in that:

Described register proxy module, also the register steering order for sending as received host computer, carries out write operation so that described chip is carried out to abnormal restoring processing to corresponding registers.

4. chip as claimed in claim 2, is characterized in that:

Bottom module, for as this bottom module operation irregularity detected, produces corresponding error indication signal, comprising:

As this bottom module operation irregularity detected, by the position, position corresponding to described Exception Type in the local error register of this bottom module; Wherein, each in described local error register is corresponding to a kind of Exception Type;

Register proxy module, for the error notification sending as received bottom module, misregistration information, comprising:

As receive the error notification that bottom module sends, by the position, position corresponding to described bottom module in global error register; Wherein, each in described global error register is corresponding to a bottom module.

5. chip as claimed in claim 4, is characterized in that:

Register proxy module, for the register access instruction sending as received host computer, carries out read operation to corresponding registers, returns to operating result to host computer, comprising:

Receive the instruction that global error register is conducted interviews that host computer sends, read the value of described global error register, described value is returned to host computer;

Receive the instruction that conducts interviews of the local error register to certain bottom module that host computer sends, read the value of described local error register, described value is returned to host computer.

6. chip as claimed in claim 1, is characterized in that:

Debugging interface module, for connecting described chip and host computer, comprising: by adopting jtag interface or serial ports to connect described chip and host computer.

7. a method of chip being debugged, described chip comprises: register proxy module, debugging interface module and multiple bottom module, the method comprises:

Bottom module, as this bottom module operation irregularity detected, produces corresponding error indication signal, sends error notification to register proxy module;

The error notification that register proxy module sends as received bottom module, misregistration information, sends error reporting by debugging interface module to host computer;

Host computer as receive from as described in the error reporting of chip, by described debugging interface module to described register proxy module transmitter register access instruction;

Described register proxy module as receive from as described in the register access instruction of host computer, corresponding registers is carried out to read operation, return to reading result to host computer;

Wherein, described debugging interface module is used for connecting described chip and host computer, forwarding information between described register proxy module and described host computer.

8. method as claimed in claim 7, is characterized in that:

Information and the Exception Type information of the bottom module of described reading result instruction operation irregularity.

9. method as claimed in claim 8, is characterized in that:

Bottom module, as this bottom module operation irregularity detected, produces corresponding error indication signal, comprising:

Bottom module is as this bottom module operation irregularity detected, by the position, position corresponding to described Exception Type in the local error register of this bottom module; Wherein, each in described local error register is corresponding to a kind of Exception Type;

The error notification that register proxy module sends as received bottom module, misregistration information, comprising:

The error notification that register proxy module sends as received bottom module, by the position, position corresponding to described bottom module in global error register; Wherein, each in described global error register is corresponding to a bottom module.

10. method as claimed in claim 9, is characterized in that:

Described register proxy module as receive from as described in the register access instruction of host computer, corresponding registers is carried out to read operation, return to reading result to host computer, comprising:

Described register proxy module receives the instruction that global error register is conducted interviews that host computer sends, and reads the value of described global error register, and described value is returned to host computer;

Described register proxy module receives the instruction that the local error register to certain bottom module that host computer sends conducts interviews, and reads the value of described local error register, and described value is returned to host computer.

11. methods as claimed in claim 8, is characterized in that:

Host computer receives after the reading result that chip returns, and also comprises:

Host computer by described debugging interface module to described register proxy module transmitter register steering order;

The register steering order that register proxy module sends as received host computer, carries out write operation so that described chip is carried out to abnormal restoring processing to corresponding registers.

12. methods as claimed in claim 7, is characterized in that:

Described debugging interface module is by adopting jtag interface or serial ports to connect described chip and host computer.