CN114839903A - DSP multi-path power supply voltage control method, system and device - Google Patents

Abstract

A DSP multi-path power supply voltage control method, a system and a device thereof are provided, the DSP multi-path power supply voltage control method comprises the following steps: acquiring a sampling signal acquired by an ADC channel to be detected; determining the output state of the sampling signal, wherein the output state comprises a normal state and an abnormal state, the normal state is used for representing that the sampling signal is in a reference voltage threshold range, the abnormal state is used for representing that the sampling signal is not in the reference voltage threshold range, and the reference voltage threshold range is a judgment threshold range corresponding to an ADC channel to be detected; the control strategy of the power supply IC to be detected is selected according to the output state, the control strategy comprises an enabling strategy and a disabling strategy, the power supply IC to be detected is the power supply IC corresponding to the next ADC channel to be detected, the N power supply ICs can be independently monitored and controlled, and the problems that the fault point of a power supply module cannot be determined, the repair efficiency is low, the safety is low, and the DSP is easily damaged are solved.

Description

A DSP multi-channel power supply voltage control method, system and device

technical field

The invention belongs to the technical field of electronics, and in particular relates to a DSP multi-channel power supply voltage control method, system and device.

Background technique

The power supply module to the DSP is powered by multiple voltages according to the power-on sequence of the DSP, and basically outputs multiple voltages synchronously. The power supply module has an enable control port. In the prior art, during the power-on process of the DSP, if One of the voltage outputs is abnormal, which makes the DSP short-circuit. Usually, the control method of directly pulling up or pulling down the enable control port of the power supply module is used to stop the output of the power supply module. However, this control method cannot determine the fault point of the power supply module. The repair efficiency is low, and the DSP cannot be protected, and the security is low, which may easily lead to damage to the DSP.

SUMMARY OF THE INVENTION

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a DSP multi-channel power supply voltage control method, which solves the problem that the fault point of the power module cannot be determined, the repair efficiency is low, the safety is low, and the DSP is easily damaged.

The invention also provides a DSP multi-channel power supply voltage control system and a DSP multi-channel power supply voltage control device.

According to the DSP multi-channel power supply voltage control method according to the embodiment of the first aspect of the present invention, the method includes the following steps:

Obtain the sampling signal collected by the ADC channel to be detected, wherein the ADC channel to be detected is one of N ADC sampling channels, and the N ADC sampling channels are set according to the power-on sequence of the DSP;

Determine the output state of the sampled signal, wherein the output state includes a normal state and an abnormal state, the normal state is used to represent that the sampled signal is within a reference voltage threshold range, and the abnormal state is used to represent all the The sampling signal is not within the reference voltage threshold range, the reference voltage threshold range is one of N judgment threshold ranges, and the N judgment threshold ranges are in one-to-one correspondence with the N ADC sampling channels;

The control strategy of the power supply IC to be tested is selected according to the output state, wherein the control strategy includes an enabling strategy and a disabling strategy, the power supply IC to be tested is one of N power supply ICs, and the N power supply ICs are The ICs are in one-to-one correspondence with the N ADC sampling channels, and the N power ICs are used for sending the N sampling signals in a one-to-one correspondence.

The DSP multi-channel power supply voltage control method according to the embodiment of the present invention has at least the following technical effects: the sampling signal collected by the ADC channel to be detected is obtained, and the output state of the sampling signal can be determined by determining whether the sampling signal is within the reference voltage threshold range, The normal state is within the reference voltage threshold range, and the abnormal state is not within the reference voltage threshold range, wherein the reference voltage threshold range is the judgment threshold range corresponding to the ADC channel to be detected. After the determination is completed, the control strategy of the power supply IC to be tested is selected according to the output state of the sampling signal, wherein the power supply IC to be tested is the power supply IC corresponding to the next ADC channel to be tested, so that the independent monitoring and control of N power supply ICs can be realized. Therefore, the failure point of the power module cannot be determined, the repair efficiency is low, the safety is low, and it is easy to cause the problem of damage to the DSP.

According to some embodiments of the present invention, the determining the output state of the sampled signal includes the following steps:

If the sampling signal is within the reference voltage threshold range, confirming the output state of the sampling signal as the normal state;

If the sampling signal is not within the reference voltage threshold range, the output state of the sampling signal is confirmed as the abnormal state.

According to some embodiments of the present invention, the selection of the control strategy of the power supply IC to be tested according to the output state includes the following steps:

If the output state of the sampling signal is confirmed to be the normal state, selecting the enabling strategy to enable the power supply IC to be tested;

If the output state of the sampling signal is confirmed to be the abnormal state, the disabling strategy is selected to stop enabling the power supply IC to be tested.

According to some embodiments of the present invention, before acquiring the sampling signal for the first time, the corresponding power IC is enabled.

According to some embodiments of the present invention, after the acquisition of the sampling signal collected by the ADC channel to be detected, the DSP multi-channel power supply voltage control method further includes the following step: displaying the voltage value of the sampling signal.

According to some embodiments of the present invention, it also includes the following steps:

obtaining adjustment data, where the adjustment data includes N adjustment threshold ranges;

The N judgment threshold ranges are updated according to the adjustment data.

The DSP multi-channel power supply voltage control system according to the embodiment of the second aspect of the present invention includes:

a sampling signal acquisition unit, configured to acquire a sampling signal collected by an ADC channel to be detected, wherein the ADC channel to be detected is one of N ADC sampling channels, and the N ADC sampling channels are set according to the power-on sequence of the DSP;

an output state determination unit, configured to determine an output state of the sampling signal, wherein the output state includes a normal state and an abnormal state, the normal state is used to indicate that the sampling signal is within a reference voltage threshold range, the The abnormal state is used to indicate that the sampling signal is not within the reference voltage threshold range, and the reference voltage threshold range is one of N judgment threshold ranges, the N judgment threshold ranges and the N ADC sampling channels one-to-one correspondence;

A control strategy selection unit is used to select a control strategy for the power supply IC to be tested according to the output state, wherein the control strategy includes an enabling strategy and a disabling strategy, and the power supply IC to be tested is one of the N power supply ICs. One, the N power supply ICs are in one-to-one correspondence with the N ADC sampling channels, and the N power supply ICs are used to send the N sampling signals in a one-to-one correspondence.

The DSP multi-channel power supply voltage control system according to the embodiment of the present invention has at least the following technical effects: the sampling signal acquired by the ADC channel to be detected can be acquired by the sampling signal acquisition unit, and whether the sampling signal is at the reference voltage threshold can be determined by the output state determination unit Within the range of the reference voltage threshold, the output state of the sampling signal can be determined. If it is within the reference voltage threshold range, it is a normal state, and if it is not within the reference voltage threshold value range, it is an abnormal state. The reference voltage threshold value range is the judgment threshold corresponding to the ADC channel to be detected. scope. After the determination is completed, the control strategy selection unit is used to select the control strategy of the power supply IC to be tested according to the output state of the sampling signal, wherein the power supply IC to be tested is the power supply IC corresponding to the next ADC channel to be detected, so that independent monitoring and control can be achieved. N power ICs solve the problem that the fault point of the power module cannot be determined, the repair efficiency is low, the safety is low, and the DSP is easily damaged.

The DSP multi-channel power supply voltage control device according to the embodiment of the third aspect of the present invention includes:

DSP;

A power module, including N power ICs;

The main control module has N ADC sampling channels set according to the power-on sequence of the DSP, and the main control module is used to obtain the sampling signals collected by the ADC channels to be detected, wherein the ADC channels to be detected are N one of the ADC sampling channels; determine the output state of the sampling signal, wherein the output state includes a normal state and an abnormal state, the normal state is used to indicate that the sampling signal is within the reference voltage threshold range, so The abnormal state is used to indicate that the sampling signal is not within the reference voltage threshold range, and the reference voltage threshold range is one of N judgment threshold ranges, the N judgment threshold ranges and the N ADC samples The channels are in one-to-one correspondence; the control strategy of the power supply IC to be tested is selected according to the output state, wherein the control strategy includes an enabling strategy and a disabling strategy, and the power supply IC to be tested is one of the N power supply ICs. One, the N power supply ICs are in one-to-one correspondence with the N ADC sampling channels, and the N power supply ICs are used to send the N sampling signals in a one-to-one correspondence.

The DSP multi-channel power supply voltage control device according to the embodiment of the present invention has at least the following technical effects: the N power supply ICs of the power supply module can send N sampling signals to the DSP in one-to-one correspondence, and the main control module can send N sampling signals according to the DSP The N ADC sampling channels set in the power-on sequence can collect N sampling signals respectively. The main control module can obtain the sampling signals collected by the ADC channels to be detected, and determine the output state of the sampling signals, wherein the sampling signals are within the reference voltage threshold range. Then the output state is a normal state, and if it is not within the reference voltage threshold range, it is an abnormal state, and the reference voltage threshold value range is the judgment threshold range corresponding to the ADC channel to be detected. After the determination is completed, the control strategy of the power supply IC to be tested can be selected according to the output state of the sampling signal through the main control module, wherein the power supply IC to be tested is the power supply IC corresponding to the next ADC channel to be tested, so that independent monitoring and control can be achieved. N power ICs solve the problem that the fault point of the power module cannot be determined, the repair efficiency is low, the safety is low, and the DSP is easily damaged.

According to some embodiments of the present invention, it further includes a human-machine interface module connected to the main control module, and the human-machine interface module includes:

a display unit for displaying the voltage value of the sampling signal;

a button unit, connected to the display unit, for acquiring adjustment data, so as to update the N judgment threshold ranges according to the adjustment data; the adjustment data includes N adjustment threshold ranges;

The interface unit is used to connect the upper computer.

Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or may be learned by practice of the invention.

Description of drawings

The above or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

Fig. 1 is the flow chart of the DSP multi-channel power supply voltage control method of the embodiment of the present invention;

2 is a partial electrical schematic diagram of a main control module according to an embodiment of the present invention;

3 is an electrical schematic diagram of a main control module according to an embodiment of the present invention;

4 is an electrical schematic diagram of a display unit according to an embodiment of the present invention;

5 is an electrical schematic diagram of a key unit according to an embodiment of the present invention;

6 is an electrical schematic diagram of an interface unit according to an embodiment of the present invention;

FIG. 7 is an electrical schematic diagram of an interface unit according to another embodiment of the present invention.

Detailed ways

The following describes in detail the embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

In the description of the present invention, it should be understood that the related orientation description, such as the orientation indicated by up, down, front, rear, left, right, etc., is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying The device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In the description of the present invention, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including this number, above, below, within, etc. are understood as including this number. If it is described that the first and the second are only for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance, or indicating the number of the indicated technical features or the order of the indicated technical features. relation.

In the description of the present invention, unless otherwise clearly defined, words such as setting, installation, connection should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

The following describes a method for controlling multiple supply voltages of a DSP according to an embodiment of the first aspect of the present invention with reference to FIG. 1 to FIG. 7 .

The DSP multi-channel power supply voltage control method according to the embodiment of the present invention includes the following steps:

Obtain the sampling signal collected by the ADC channel to be detected, wherein the ADC channel to be detected is one of N ADC sampling channels, and the N ADC sampling channels are set according to the power-on sequence of the DSP;

Determine the output state of the sampled signal, wherein the output state includes a normal state and an abnormal state, the normal state is used to indicate that the sampled signal is within the reference voltage threshold range, the abnormal state is used to indicate that the sampled signal is not within the reference voltage threshold range, the reference voltage The threshold range is one of N judgment threshold ranges, and the N judgment threshold ranges correspond to N ADC sampling channels one-to-one;

The control strategy of the power supply IC to be tested is selected according to the output state, wherein the control strategy includes an enabling strategy and a disabling strategy. The power supply IC to be tested is one of N power supply ICs, and the N power supply ICs and N ADC sampling channels are one One-to-one correspondence, N power supply ICs are used to send N sampling signals in one-to-one correspondence.

In order to better describe the DSP multi-channel power supply voltage control method according to the embodiment of the present invention, the device for DSP multi-channel power supply voltage control according to the embodiment of the present invention is briefly described first. The DSP multi-channel power supply voltage control device according to the embodiment of the present invention includes a DSP, a power supply module and a main control module. The power supply module includes N power supply ICs, each power supply IC is used to send sampling signals to supply power to the DSP, and each power supply IC is It has an enabling control terminal; the main control module has N ADC sampling channels set according to the power-on sequence of the DSP, and the N ADC sampling channels correspond to N power supply ICs one-to-one, and each ADC sampling channel is used to collect the corresponding power supply. The sampling signal sent by the IC.

After enabling the power supply IC corresponding to the power-on sequence of the DSP, the power supply IC sends a sampling signal, and collects the sampling signal through the ADC channel to be detected. After the acquisition is completed, determine whether the voltage value of the sampling signal is within the reference voltage threshold range corresponding to the ADC channel to be detected. If it is within the range of the reference voltage threshold, the output state of the sampling signal is the normal state. After the output state of the sampling signal is confirmed to be the normal state, the power supply IC to be tested is enabled, and the ADC channel to be tested is the current power supply in the power-on sequence. The ADC sampling channel corresponding to the voltage, the power supply IC to be tested is the power supply IC corresponding to the next power supply voltage in the power-on sequence; if the voltage value of the sampling signal is not within the range of the reference voltage threshold, the output state of the sampling signal is abnormal. After the output state of the sampled signal is confirmed to be abnormal, the power supply IC to be tested is disabled, the power supply module is stopped to supply power to the DSP, and the fault is checked, which realizes independent monitoring and control of N power supply ICs and improves safety. It should be noted that each judgment threshold range is used to represent the fluctuation range of the power supply voltage of the DSP.

In order to more clearly describe the DSP multi-channel power supply voltage control method according to the embodiment of the present invention, N is 2, and the voltage values of the two-channel power supply voltage of the DSP are 3.3V and 1.8V, and the power-on sequence is 3.3V and 1.8V. The case of V is described in detail, but the specific value of N and the voltage value of the sampled signal cannot be regarded as a limitation of the present invention, and the power-on sequence of the DSP is usually determined by itself.

Referring to FIG. 2 and FIG. 3 , in some embodiments, after the power supply ICU6 is enabled, the power supply ICU6 sends a sampling signal, and collects the sampling signal through the ADC channel ADCINA0 to be detected. After the acquisition is completed, it is determined whether the voltage value of the sampling signal is in the ADC channel to be detected. Within the range of the reference voltage threshold corresponding to ADCINA0 (that is, around 3.3V), if it is within the range of the reference voltage threshold, the output state of the sampled signal is normal. After the output state of the sampled signal is confirmed to be normal, enable the power supply to be tested. ICU7, the power supply to be tested ICU7 sends a sampling signal, and the sampling signal is collected through the ADC channel ADCINA1 to be detected. After the acquisition is completed, it is determined whether the voltage value of the sampling signal is within the range of the reference voltage threshold corresponding to the ADC channel to be detected ADCINA1 (that is, about 1.8V), If it is within the range of the reference voltage threshold, the output state of the sampling signal is a normal state, and the power-on process is ended. If the voltage value of any sampled signal is not within the corresponding reference voltage threshold range, that is, when the output state of the sampled signal is confirmed to be abnormal, stop the power module from supplying power to the DSP and check for faults.

According to the DSP multi-channel power supply voltage control method of the embodiment of the present invention, the sampling signal collected by the ADC channel to be detected is obtained, and the output state of the sampling signal can be determined by determining whether the sampling signal is within the reference voltage threshold range, and the output state of the sampling signal is within the reference voltage threshold range. It is a normal state, and it is an abnormal state if it is not within the reference voltage threshold range, wherein the reference voltage threshold range is the judgment threshold range corresponding to the ADC channel to be detected. After the determination is completed, the control strategy of the power supply IC to be tested is selected according to the output state of the sampling signal, wherein the power supply IC to be tested is the power supply IC corresponding to the next ADC channel to be tested, so that the independent monitoring and control of N power supply ICs can be realized. Therefore, the failure point of the power module cannot be determined, the repair efficiency is low, the safety is low, and it is easy to cause the problem of damage to the DSP.

In some embodiments of the present invention, referring to FIG. 2 , determining the output state of the sampled signal includes the following steps:

If the sampling signal is within the reference voltage threshold range, confirm the output state of the sampling signal as a normal state;

If the sampled signal is not within the reference voltage threshold range, the output state of the sampled signal is confirmed to be an abnormal state.

The N ADC sampling channels are in one-to-one correspondence with the N judgment threshold ranges, the ADC channel to be detected is one of the N ADC sampling channels, and the reference voltage threshold range is the judgment threshold range corresponding to the ADC channel to be detected. After the sampling signal is collected by the ADC channel to be detected, it is determined whether the voltage value of the sampling signal is within the threshold voltage range of the reference voltage. If it is within the threshold value range of the reference voltage, the output state of the sampling signal is confirmed as a normal state for subsequent use according to the output state. Power IC to be tested. If the voltage value of the sampled signal is not within the range of the reference voltage threshold, the output state of the sampled signal is confirmed as an abnormal state, which is used to stop enabling the power supply IC to be tested and stop the power supply module from supplying power to the DSP according to the output state. Independent monitoring and control of power ICs.

In some embodiments of the present invention, referring to FIG. 2 and FIG. 3 , selecting the control strategy of the power supply IC under test according to the output state includes the following steps:

If the output state of the sampled signal is confirmed to be a normal state, select an enabling strategy to enable the power IC to be tested;

If the output state of the sampled signal is confirmed to be abnormal, select the disable strategy to stop enabling the power IC to be tested.

After the ADC channel to be detected collects the sampled signal, determine whether the voltage value of the sampled signal is within the reference voltage threshold range. If it is within the reference voltage threshold range, confirm the output state of the sampled signal as a normal state, and select an enabling strategy to enable The power IC to be tested. If the voltage value of the sampled signal is not within the range of the reference voltage threshold, confirm the output state of the sampled signal as an abnormal state, and select the disable strategy, stop enabling the power IC to be tested, and stop the power module supplying power to the DSP to achieve Independent monitoring and control of power ICs.

In some embodiments of the present invention, referring to FIG. 2 and FIG. 3 , before acquiring the sampling signal for the first time, the corresponding power IC is enabled. Before acquiring the sampling signal for the first time, that is, when the power supply module is in the initial state, directly enable the power supply IC corresponding to the first power supply voltage in the power-on sequence of the DSP, so that it sends the sampling signal to determine the output state of the sampling signal, and according to the output State selects the control strategy for the power IC under test.

In some embodiments of the present invention, referring to FIG. 4 , after acquiring the sampling signal collected by the ADC channel to be detected, the DSP multi-channel power supply voltage control method further includes the following steps: displaying the voltage value of the sampling signal. After the sampling signal is collected by the ADC channel to be detected, the sampling signal is displayed on the display unit to visualize the voltage value of the sampling signal collected by the ADC channel to be detected, and the data output by the power supply IC can be monitored intuitively. It should be noted that the display unit adopts an LCD display screen, and other devices such as an OLED display screen can also be used, which should not be regarded as a limitation of the present invention.

In some embodiments of the present invention, referring to FIG. 5 , the following steps are further included:

Acquire adjustment data, which includes N adjustment threshold ranges;

The N judgment threshold ranges are updated according to the adjustment data.

If the power-on sequence of the DSP changes, or a different type of DSP is replaced, N judgment threshold ranges need to be updated to adapt to the new power-on sequence. The adjustment data can be obtained by operating the LCD display through the key unit, or The adjustment data is obtained by operating the main control module by the host computer to update the N judgment threshold ranges, so as to realize the purpose of adjusting the judgment threshold range.

The following describes a DSP multi-channel power supply voltage control system according to an embodiment of the second aspect of the present invention with reference to FIG. 1 to FIG. 7 .

The DSP multi-channel power supply voltage control system according to the embodiment of the present invention includes a sampling signal acquisition unit, an output state determination unit and a control strategy selection unit. The sampling signal acquisition unit is used to acquire the sampling signal collected by the ADC channel to be detected, wherein the ADC channel to be detected is one of N ADC sampling channels, and the N ADC sampling channels are set according to the power-on sequence of the DSP; the output state determination unit , used to determine the output state of the sampled signal, wherein the output state includes a normal state and an abnormal state, the normal state is used to indicate that the sampled signal is within the reference voltage threshold range, and the abnormal state is used to indicate that the sampled signal is not within the reference voltage threshold range , the reference voltage threshold range is one of N judgment threshold ranges, and the N judgment threshold ranges are in one-to-one correspondence with N ADC sampling channels; the control strategy selection unit is used to select the control strategy of the power supply IC to be tested according to the output state, wherein , the control strategy includes an enabling strategy and a disabling strategy. The power supply IC to be tested is one of the N power supply ICs. The N power supply ICs are in one-to-one correspondence with the N ADC sampling channels, and the N power supply ICs are used for one-to-one correspondence transmission. N sampled signals.

In order to better describe the DSP multi-channel power supply voltage control system of the embodiment of the present invention, the DSP multi-channel power supply voltage control device of the embodiment of the present invention is briefly described first. The DSP multi-channel power supply voltage control device according to the embodiment of the present invention includes a DSP, a power supply module and a main control module. The power supply module includes N power supply ICs, each power supply IC is used to send sampling signals to supply power to the DSP, and each power supply IC is It has an enabling control terminal; the main control module has N ADC sampling channels set according to the power-on sequence of the DSP, and the N ADC sampling channels correspond to N power supply ICs one-to-one, and each ADC sampling channel is used to collect the corresponding power supply. The sampling signal sent by the IC. The sampling signal acquisition unit, the output state determination unit and the control strategy selection unit in the DSP multi-channel power supply voltage control system according to the embodiment of the present invention are all set in the main control module.

When the power supply module is in the initial state, the control strategy selection unit directly enables the power supply IC corresponding to the power-on sequence of the DSP. After the power supply IC sends the sampling signal, the sampling signal acquisition unit obtains the sampling signal collected by the ADC channel to be detected, and outputs it after the collection is completed. The state determination unit determines whether the voltage value of the sampled signal is within the range of the reference voltage threshold corresponding to the ADC channel to be detected. If it is within the range of the reference voltage threshold, the output state of the sampled signal is a normal state, and the output state of the sampled signal is confirmed to be normal. After the state, the control strategy selection unit controls and enables the power supply IC to be tested. The ADC channel to be detected is the ADC sampling channel corresponding to the current power supply voltage in the power-on sequence, and the power supply IC to be tested is the power supply corresponding to the next power supply voltage in the power-on sequence. IC; if the voltage value of the sampled signal is not within the range of the reference voltage threshold, the output state of the sampled signal is abnormal. After the output state of the sampled signal is confirmed to be abnormal, the power supply IC to be tested will not be enabled and the power supply will be stopped. The module supplies power to the DSP and checks for faults, which realizes independent monitoring and control of N power ICs and improves safety. It should be noted that each judgment threshold range is used to represent the fluctuation range of the power supply voltage of the DSP.

According to the DSP multi-channel power supply voltage control system according to the embodiment of the present invention, the sampling signal acquired by the ADC channel to be detected can be acquired by the sampling signal acquisition unit, and whether the sampling signal is within the reference voltage threshold range can be determined by the output state determination unit, so as to determine whether the sampling signal is within the threshold range of the reference voltage. The output state of the sampled signal is a normal state within the reference voltage threshold range, and an abnormal state when it is not within the reference voltage threshold range, wherein the reference voltage threshold range is the judgment threshold range corresponding to the ADC channel to be detected. After the determination is completed, the control strategy selection unit is used to select the control strategy of the power supply IC to be tested according to the output state of the sampling signal, wherein the power supply IC to be tested is the power supply IC corresponding to the next ADC channel to be detected, so that independent monitoring and control can be achieved. N power ICs solve the problem that the fault point of the power module cannot be determined, the repair efficiency is low, the safety is low, and the DSP is easily damaged.

The following describes a DSP multi-channel power supply voltage control device according to an embodiment of the third aspect of the present invention with reference to FIG. 1 to FIG. 7 .

A DSP multi-channel power supply voltage control device according to an embodiment of the present invention includes a DSP, a power supply module and a main control module. The power supply module includes N power supply ICs; the main control module has N ADC sampling channels set according to the power-on sequence of the DSP, and the main control module is used to obtain the sampling signals collected by the ADC channels to be detected, wherein the ADC channels to be detected are One of the N ADC sampling channels; determine the output state of the sampling signal, wherein the output state includes a normal state and an abnormal state, the normal state is used to indicate that the sampling signal is within the reference voltage threshold range, and the abnormal state is used to indicate the sampling signal. Not within the reference voltage threshold range, the reference voltage threshold value range is one of N judgment threshold value ranges, and the N judgment threshold value ranges correspond to N ADC sampling channels one-to-one; select the control strategy of the power supply IC to be tested according to the output state, among which, The control strategy includes an enabling strategy and a disabling strategy. The power supply IC to be tested is one of the N power supply ICs. The N power supply ICs are in one-to-one correspondence with the N ADC sampling channels, and the N power supply ICs are used to transmit N in one-to-one correspondence. sampled signal.

The power supply module includes N power supply ICs. Each power supply IC is used to send sampling signals to supply power to the DSP, and each power supply IC has an enable control terminal EN and a voltage output terminal Vout1/Vout2. The main control module enables the enable control After the terminal EN, the power supply IC outputs the sampling signal through the voltage output terminals Vout1/Vout2. It should be noted that, in some embodiments of the present invention, only the voltage output terminal Vout1 is used to output the sampling signal, the voltage output terminal Vout2 can be put into use according to actual needs, and the number of voltage output terminals of different types of power ICs is different. In some embodiments of the present invention, the models of the N power supply ICs are all TPS70302, but the models of the power supply ICs cannot be regarded as a limitation of the present invention. It should be noted that the actual number of power supply ICs in the power supply module is greater than N, and it is only necessary to select the N ones that need to be used. In addition, in the preparation stage, when selecting N power supply ICs, the voltage value output by the voltage output terminals Vout1/Vout2 of each power supply IC is calculated according to the feedback circuit of the power supply IC, so as to select the N corresponding to the DSP power-on sequence. A power supply IC, wherein the feedback circuit is a loop formed by the voltage output terminal Vout1 of the power supply IC, the resistor R17 and the VSense1 in FIG. 3 .

The main control module includes a main control chip U1, a digital circuit, an analog circuit, an external passive crystal oscillator, a reset circuit, a power supply circuit, a filter circuit, a decoupling circuit and a circuit for connecting to a host computer. The N ADC sampling channels set by the timing sequence correspond to the N power supply ICs one by one. Each ADC sampling channel is used to collect the sampling signal sent by the corresponding power supply IC. The main control chip U1 pairs with its IO terminal. The enable control terminal of the power module is used for control. It should be noted that the actual number of ADC channels in the main control module is greater than N, and in some embodiments of the present invention, it is only necessary to select N from them as ADC sampling channels. The circuit connected to the upper computer can be connected to the upper computer to program the main control chip U1 to control the digital circuit and monitor the analog circuit. The adjustment data can be obtained by connecting the upper computer circuit to update the N judgment threshold ranges. It should be noted that the specific circuit structure of the main control module cannot be regarded as a limitation of the present invention. In addition, the working principles of digital circuits, analog circuits, external passive crystal oscillators, reset circuits, power supply circuits, filter circuits, decoupling circuits and circuits connected to the host computer are known to those skilled in the art and will not be repeated here.

In some embodiments, as shown in FIG. 2 and FIG. 3 , N is 2, and the main control chip U1 enables the enable control port EN of the power supply ICU6 through the IO terminal GPIO16, so that the power supply ICU6 outputs the sampling signal through the voltage output terminal Vout1 , the ADC channel ADCINA0 of the main control chip U1 collects the sampling signal, and judges whether the sampling signal is within the range of the reference voltage threshold corresponding to the ADC channel ADCINA0 to be detected (that is, around 3.3V). The output state of the signal is the normal state, and after the output state of the sampling signal is confirmed to be the normal state, enable the enable control port EN of the power supply ICU7 to be tested, so that the power supply ICU7 outputs the sampling signal through the voltage output terminal Vout1, and the main control chip U1 The ADC channel ADCINA1 to be detected collects the sampling signal, and judges whether the sampling signal is within the reference voltage threshold range corresponding to the ADC channel ADCINA1 to be detected (ie around 1.8V). If it is within the reference voltage threshold range, the output state of the sampling signal is In normal state, the power-on is completed. If the voltage value of any sampled signal is not within the corresponding reference voltage threshold range, the output state of the sampled signal is abnormal, and after the output state of the sampled signal is confirmed to be abnormal, the power supply module will stop supplying power to the DSP, and Check faults, realize independent monitoring and control of N power ICs, and improve safety. It should be noted that each judgment threshold range is used to represent the fluctuation range of the power supply voltage of the DSP. In addition, the value of N is determined according to the actual situation and cannot be regarded as a limitation of the present invention.

According to the DSP multi-channel power supply voltage control device according to the embodiment of the present invention, the N power supply ICs of the power supply module can send N sampling signals to the DSP in one-to-one correspondence, and the N sampling signals set on the main control module according to the power-on sequence of the DSP can be used to power up the DSP. Each ADC sampling channel can collect N sampling signals respectively, and the sampling signal collected by the ADC channel to be detected can be obtained through the main control module, and the output state of the sampling signal can be determined, wherein the output state is normal if the sampling signal is within the reference voltage threshold range , if it is not within the reference voltage threshold range, it is an abnormal state, and the reference voltage threshold value range is the judgment threshold value range corresponding to the ADC channel to be detected. After the determination is completed, the control strategy of the power supply IC to be tested can be selected according to the output state of the sampling signal through the main control module, wherein the power supply IC to be tested is the power supply IC corresponding to the next ADC channel to be tested, so that independent monitoring and control can be achieved. N power ICs solve the problem that the fault point of the power module cannot be determined, the repair efficiency is low, the safety is low, and the DSP is easily damaged.

In some embodiments of the present invention, referring to FIG. 4 to FIG. 7 , a human-machine interface module connected with the main control module is further included, and the human-machine interface module includes:

A display unit for displaying the voltage value of the sampled signal;

a button unit, connected with the display unit, for acquiring adjustment data, so as to update N judgment threshold ranges according to the adjustment data; the adjustment data includes N adjustment threshold ranges;

The interface unit is used to connect the upper computer.

As shown in Figure 4, after the sampling signal is collected by the ADC channel to be detected, the sampling signal is transmitted to the display unit, which can visualize the voltage value of the sampling signal collected by the ADC channel to be detected, and can visually monitor the data output by the power supply IC. The display unit adopts an LCD display screen, and the model is LCD12864. It should be noted that the display unit may also adopt other devices such as an OLED display screen, which cannot be regarded as a limitation of the present invention.

As shown in Figure 5, if the power-on sequence of the DSP changes, or a different type of DSP is replaced, the N judgment threshold ranges need to be updated to adapt to the new power-on sequence. To obtain the adjustment data, the interface unit can also be connected to the host computer to operate the main control module to obtain the adjustment data, so as to update the N judgment threshold ranges, so as to realize the purpose of adjusting the judgment threshold ranges.

The interface unit can use the SCI serial port module (as shown in FIG. 6 ) and the CAN module (as shown in FIG. 7 ) to connect to the upper computer, and the specific module type used cannot be regarded as a limitation of the present invention.

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples", etc., is meant to incorporate the embodiments A particular feature, structure, material, or characteristic described by an example or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although the above-mentioned embodiments of the present invention have been described in detail in conjunction with the accompanying drawings, the present invention is not limited to the above-mentioned embodiments, and those of ordinary skill in the art can understand that these embodiments can be carried out without departing from the principle and purpose of the present invention. For various changes, modifications, substitutions and alterations, the scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A DSP multi-path power supply voltage control method is characterized by comprising the following steps:

acquiring a sampling signal acquired by an ADC (analog to digital converter) channel to be detected, wherein the ADC channel to be detected is one of N ADC sampling channels, and the N ADC sampling channels are set according to a power-on time sequence of a DSP (digital signal processor);

determining an output state of the sampling signal, wherein the output state includes a normal state and an abnormal state, the normal state is used for representing that the sampling signal is within a reference voltage threshold range, the abnormal state is used for representing that the sampling signal is not within the reference voltage threshold range, the reference voltage threshold range is one of N judgment threshold ranges, and the N judgment threshold ranges are in one-to-one correspondence with the N ADC sampling channels;

and selecting a control strategy for the power supply IC to be tested according to the output state, wherein the control strategy comprises an enabling strategy and a disabling strategy, the power supply IC to be tested is one of N power supply ICs, N power supply ICs are in one-to-one correspondence with N ADC sampling channels, and N power supply ICs are used for sending N sampling signals in one-to-one correspondence.

2. The DSP multiple supply voltage control method of claim 1 wherein said determining an output state of said sampled signal comprises the steps of:

If the sampling signal is within the reference voltage threshold range, determining the output state of the sampling signal as the normal state;

and if the sampling signal is not in the reference voltage threshold range, confirming the output state of the sampling signal as the abnormal state.

3. The method for controlling the voltage of the multi-channel power supply of the DSP according to claim 2, wherein the step of selecting the control strategy of the power supply IC to be tested according to the output state comprises the following steps:

if the output state of the sampling signal is confirmed to be the normal state, selecting the enabling strategy to enable the power supply IC to be tested;

and if the output state of the sampling signal is confirmed to be the abnormal state, selecting the disabling strategy to stop enabling the power supply IC to be tested.

4. The method according to claim 1, wherein the corresponding power IC is enabled before the sampling signal is first obtained.

5. The DSP multiple power supply voltage control method according to claim 1, wherein after the obtaining of the sampling signal collected by the ADC channel to be detected, the DSP multiple power supply voltage control method further comprises the steps of: and displaying the voltage value of the sampling signal.

6. The DSP multi-path supply voltage control method of claim 1, further comprising the steps of:

acquiring adjustment data, wherein the adjustment data comprises N adjustment threshold ranges;

and updating N judgment threshold value ranges according to the adjustment data.

7. A computer-readable storage medium storing computer-executable instructions for causing a computer to perform the DSP multiple supply voltage control method of any one of claims 1 to 6.

8. A DSP multi-path power supply voltage control system is characterized by comprising:

the device comprises a sampling signal acquisition unit, a signal processing unit and a signal processing unit, wherein the sampling signal acquisition unit is used for acquiring a sampling signal acquired by an ADC (analog to digital converter) channel to be detected, the ADC channel to be detected is one of N ADC sampling channels, and the N ADC sampling channels are arranged according to the power-on time sequence of a DSP (digital signal processor);

the output state determining unit is used for determining the output state of the sampling signal, wherein the output state comprises a normal state and an abnormal state, the normal state is used for representing that the sampling signal is within a reference voltage threshold range, the abnormal state is used for representing that the sampling signal is not within the reference voltage threshold range, the reference voltage threshold range is one of N judgment threshold ranges, and the N judgment threshold ranges are in one-to-one correspondence with the N ADC sampling channels;

And the control strategy selection unit is used for selecting a control strategy for the power supply IC to be tested according to the output state, wherein the control strategy comprises an enabling strategy and a disabling strategy, the power supply IC to be tested is one of N power supply ICs, N power supply ICs and N ADC sampling channels are in one-to-one correspondence, and N power supply ICs are used for sending N sampling signals in one-to-one correspondence.

9. A DSP multichannel power supply voltage control device is characterized by comprising:

DSP；

a power module including N power ICs;

the main control module is provided with N ADC sampling channels which are arranged according to the power-on time sequence of the DSP, and is used for acquiring sampling signals acquired by the ADC channels to be detected, wherein the ADC channels to be detected are one of the N ADC sampling channels; determining an output state of the sampling signal, wherein the output state includes a normal state and an abnormal state, the normal state is used for representing that the sampling signal is within a reference voltage threshold range, the abnormal state is used for representing that the sampling signal is not within the reference voltage threshold range, the reference voltage threshold range is one of N judgment threshold ranges, and the N judgment threshold ranges are in one-to-one correspondence with the N ADC sampling channels; and selecting a control strategy for the power supply IC to be tested according to the output state, wherein the control strategy comprises an enabling strategy and a disabling strategy, the number of the power supply ICs to be tested is N, the number of the power supply ICs to be tested is one of the N power supply ICs, the number of the power supply ICs is N, the ADC sampling channels are in one-to-one correspondence, and the number of the power supply ICs is N, and the power supply ICs are used for sending N sampling signals in one-to-one correspondence.

10. The DSP multiple-supply-voltage control apparatus of claim 9, further comprising a human-machine interface module connected to the main control module, the human-machine interface module comprising:

the display unit is used for displaying the voltage value of the sampling signal;

the key unit is connected with the display unit and used for acquiring adjustment data so as to update the N judgment threshold value ranges according to the adjustment data; the adjustment data comprises N adjustment threshold ranges;

and the interface unit is used for connecting an upper computer.

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