CN101788929A - Baseband chip monitoring device and working method thereof - Google Patents
Baseband chip monitoring device and working method thereof Download PDFInfo
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- CN101788929A CN101788929A CN200910045867A CN200910045867A CN101788929A CN 101788929 A CN101788929 A CN 101788929A CN 200910045867 A CN200910045867 A CN 200910045867A CN 200910045867 A CN200910045867 A CN 200910045867A CN 101788929 A CN101788929 A CN 101788929A
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Abstract
The invention relates to a baseband chip monitoring device and a working method thereof. The baseband chip monitoring device comprises an MOS (Metal Oxide Semiconductor) tube, a singlechip and an LDO (Low Dropout Regulator), wherein the MOS tube is connected with a first power supply; the singlechip monitors a baseband chip through a serial port and controls power failure and restarting of the baseband chip; and the LDO is connected with the singlechip and a second power supply and controls power supply of the singlechip. The working method comprises the following steps of: S1. pressing a power key down by a user, starting the baseband chip, electrifying the LDO and starting to run the singlechip; and S2. monitoring the baseband chip by the singlechip through the serial port, if the baseband chip works abnormally, restarting the baseband chip and if the baseband chip still works abnormally after being restarted many times, cutting off electricity of the baseband chip. In the invention, the singlechip design is adopted, the working state of the baseband chip is monitored from the outside and the baseband chip is restarted from the outside after abnormity is detected, thereby ensuring the work quality of the baseband chip.
Description
Technical field
The present invention relates to a kind of baseband chip monitoring device, particularly relate to a kind of baseband chip monitoring device and method of work thereof.
Background technology
At present, generally all be to use inner house dog to come the duty of baseband chip is monitored.Yet, adopting this technology, the software that baseband chip takes place sometimes runs and flies the situation of baseband chip but inner house dog fails normally to restart.Therefore, the running status from the outer monitoring baseband chip will be a better technological development direction.
Summary of the invention
The technical problem to be solved in the present invention is to run the defective that can not normally restart baseband chip when flying sometimes in order to overcome prior art at baseband chip software, and a kind of baseband chip monitoring device of the duty of baseband chip being monitored from the outside and method of work thereof are provided.
The present invention solves above-mentioned technical matters by following technical proposals:
A kind of baseband chip monitoring device, its characteristics are that it comprises: a metal-oxide-semiconductor, it is connected with one first power supply; One single-chip microcomputer, it is by this baseband chip of serial monitoring, this single-chip microcomputer is connected with the KEYON pin of this baseband chip by this metal-oxide-semiconductor, be used to control the outage of this baseband chip, this single-chip microcomputer also is connected with the RESET pin of this baseband chip by a triode, is used to control restarting of this baseband chip; One LDO, it is connected with this single-chip microcomputer and a second source, and this LDO is connected with the VEXT pin of this baseband chip by an enable pin, is used to control the power supply of this single-chip microcomputer.
Preferably, it comprises that also one is connected in the diode between the KEYON pin of this single-chip microcomputer and baseband chip.
Another technical scheme of the present invention is: a kind of method of work of above-mentioned baseband chip monitoring device, its characteristics are that it may further comprise the steps: S
1, the user presses power key, this baseband chip begins to start, this LDO powers on, this single-chip microcomputer brings into operation; S
2, this single-chip microcomputer is by this baseband chip of serial monitoring, if this baseband chip operation irregularity is then restarted this baseband chip,, then this baseband chip is cut off the power supply if restart repeatedly still operation irregularity.
Wherein, this single-chip microcomputer may further comprise the steps the monitoring of this baseband chip: S
1, this single-chip microcomputer is in a undefined behavior when bringing into operation, and enter a power down mode at once and finish to wait for that this baseband chip starts; S
2, this single-chip microcomputer enters a monitor state, if this baseband chip is working properly, then this single-chip microcomputer enters an idle condition, and in behind one first Preset Time, enters this monitor state once more; If this baseband chip operation irregularity is then restarted this baseband chip,, then this baseband chip is cut off the power supply if restart repeatedly still operation irregularity.
Whether wherein, when this this single-chip microcomputer of baseband chip request carried out hardware testing, this single-chip microcomputer entered a test mode, connect normally to test each interface.
Wherein, under this monitor state; this single-chip microcomputer is every one second Preset Time; send status poll instruction to this baseband chip; this baseband chip returns to this single-chip microcomputer with its state after receiving this status poll instruction, if the return state that this single-chip microcomputer is received is unusual or do not receive return state in one the 3rd Preset Time, then retransmit this status poll instruction; if retransmit and repeatedly do not receive normal return state yet, then judge this baseband chip operation irregularity.
Positive progressive effect of the present invention is: the present invention has adopted the design of single-chip microcomputer, and the duty from the outside to baseband chip is monitored, and after detecting unusually, restarts baseband chip from the outside, has guaranteed the work quality of baseband chip thus.
Description of drawings
Fig. 1 is the circuit diagram of baseband chip monitoring device of the present invention.
Fig. 2 is the process flow diagram of the method for work of baseband chip monitoring device of the present invention.
Embodiment
Provide preferred embodiment of the present invention below in conjunction with accompanying drawing, to describe technical scheme of the present invention in detail.
Figure 1 shows that the circuit diagram of baseband chip monitoring device of the present invention.The BB that uses in the present embodiment (Baseband, base band) chip 1 is AD6720, and it has a KEYON pin, a RESET pin and a VEXT pin.And the MCU that uses in the present embodiment (MicroController Unit, single-chip microcomputer) 2 have a GPIO1 (General Purpose InputOutput, general I/O) pin, a GPIO3 pin and a PTA5 pin, wherein GPIO1 and GPIO3 are self-defining pin name, and PTA5 is the 1st pin name of single-chip microcomputer itself.GPIO1 pin and GPIO3 pin are in input state after MCU2 is restarted, need be configured to export low, drop-down by force, and and an electric capacity to ground, to prevent disturbance, as output pin; The PTA5 pin is that MCU2 wakes common GPIO pin under pin and the normal mode of operation up under stop mode, and as input pin, the outside is pulled to a LDO (Low Dropout Regulator, low pressure difference linear voltage regulator) 5 outputs.Baseband chip monitoring device of the present invention comprises: a metal-oxide-semiconductor 3, and it is connected with one first power supply Vbat1, is used for controlling the power supply of baseband chip 1, and the electrification reset operation is carried out in the measure that can take to cut off the power supply under the situation of baseband chip 1 operation irregularity; Above-mentioned single-chip microcomputer 2, it monitors this baseband chip 1 by serial ports RX/TX (Transmit/Receive), this single-chip microcomputer 2 is connected with the KEYON pin of this baseband chip 1 by this metal-oxide-semiconductor 3, be used to control the outage of this baseband chip 1, this single-chip microcomputer 2 also is connected with the RESET pin of this baseband chip 1 by a triode 4, be used to control restarting of this baseband chip 1, wherein, this triode 4 under normal circumstances its base stage is low, not conducting of triode, make the simulation of baseband chip 1, numeral and MCP (Media and Communications Processor, the multi-media communication processor) RESET pin is isolated with the GPIO1 pin of MCU2 on electric, does not influence baseband chip 1 start when so just having guaranteed the MCU2 off-duty; Above-mentioned LDO5, it is connected with this single-chip microcomputer 2 and a second source Vbat2, and this LDO5 is connected with the VEXT pin of this baseband chip 1 by an enable pin EN, is used to control the power supply of this single-chip microcomputer 2, wherein, concrete magnitude of voltage need are complementary with the voltage of the input/output port of baseband chip 1.Baseband chip monitoring device of the present invention comprises that also one is connected in the diode 6 between the KEYON pin of this single-chip microcomputer 2 and baseband chip 1, is used for preventing drawing on the Vbat1 of KEYON pin inside of baseband chip 1 causing the MCU2 crosstalk.
Figure 2 shows that the process flow diagram of the method for work of baseband chip monitoring device of the present invention.
After loading onto battery, when baseband chip was not also started shooting, the VEXT pin is power supply not, and entire equipment is in closed condition like this, and shutdown consumption stream is the static state consumption stream of each chip.
Wherein, in step 100-102, after the user pressed power key, the LDO of MCU began power supply, but if the user presses the deficiency of time of power key so that baseband chip start, and then unclamping behind the power key VEXT pin can power down, and final MCU can not start; If the user presses the time long enough of power key, reach the normal boot-strap required time, baseband chip normal boot-strap then, the power supply of VEXT pin is kept constant, LDO one direct power supply of MCU, MCU brings into operation.
The MCU software systems have two kinds of mode of operation POWERSAVE (power saving) patterns and RUNNING (operation) pattern.Wherein the RUNNING pattern can be divided into 4 kinds of state: UNDEFINED (undefined), TEST (test), MONITOR (monitoring) and IDLE (free time).Whether when this this single-chip microcomputer of baseband chip request carried out hardware testing, this single-chip microcomputer just can enter test mode, connect normally with the welding of testing each interface.
Particularly, under monitor state, MCU is by the ruuning situation of serial ports RX/TX monitoring baseband chip software.This single-chip microcomputer is every one second Preset Time; send status poll instruction to this baseband chip; this baseband chip returns to this single-chip microcomputer with its state after receiving this status poll instruction; if the return state that this single-chip microcomputer is received is unusual or do not receive return state in one the 3rd Preset Time; then retransmit this status poll instruction, if after retransmitting repeatedly, be made as in the present embodiment retransmit 3 times after; do not receive normal return state yet, then judge this baseband chip operation irregularity.
In addition, when operate as normal, press power key, then do not exert an influence if the user is short; If reach the normal shutdown required time by power key with the head of a household, then shutdown; Be longer than the normal shutdown required time as if reaching by power key, then restart this baseband chip with the head of a household.
The present invention has adopted the design of single-chip microcomputer, and the duty from the outside to baseband chip is monitored, and after detecting unusually, restarts baseband chip from the outside, has guaranteed the work quality of baseband chip thus.
Though more than described the specific embodiment of the present invention, it will be understood by those of skill in the art that these only illustrate, under the prerequisite that does not deviate from principle of the present invention and essence, can make numerous variations or modification to these embodiments.Therefore, protection scope of the present invention is limited by appended claims.
Claims (6)
1. baseband chip monitoring device is characterized in that it comprises:
One metal-oxide-semiconductor, it is connected with one first power supply;
One single-chip microcomputer, it is by this baseband chip of serial monitoring, this single-chip microcomputer is connected with the KEYON pin of this baseband chip by this metal-oxide-semiconductor, be used to control the outage of this baseband chip, this single-chip microcomputer also is connected with the RESET pin of this baseband chip by a triode, is used to control restarting of this baseband chip;
One LDO, it is connected with this single-chip microcomputer and a second source, and this LDO is connected with the VEXT pin of this baseband chip by an enable pin, is used to control the power supply of this single-chip microcomputer.
2. baseband chip monitoring device as claimed in claim 1 is characterized in that, it comprises that also one is connected in the diode between the KEYON pin of this single-chip microcomputer and baseband chip.
3. the method for work of a baseband chip monitoring device as claimed in claim 1 is characterized in that, it may further comprise the steps:
S
1, the user presses power key, this baseband chip begins to start, this LDO powers on, this single-chip microcomputer brings into operation;
S
2, this single-chip microcomputer is by this baseband chip of serial monitoring, if this baseband chip operation irregularity is then restarted this baseband chip,, then this baseband chip is cut off the power supply if restart repeatedly still operation irregularity.
4. method of work as claimed in claim 3 is characterized in that, this single-chip microcomputer may further comprise the steps the monitoring of this baseband chip:
S
1, this single-chip microcomputer is in a undefined behavior when bringing into operation, and enter a power down mode at once and finish to wait for that this baseband chip starts;
S
2, this single-chip microcomputer enters a monitor state, if this baseband chip is working properly, then this single-chip microcomputer enters an idle condition, and in behind one first Preset Time, enters this monitor state once more; If this baseband chip operation irregularity is then restarted this baseband chip,, then this baseband chip is cut off the power supply if restart repeatedly still operation irregularity.
5. whether method of work as claimed in claim 4 is characterized in that, when this this single-chip microcomputer of baseband chip request carried out hardware testing, this single-chip microcomputer entered a test mode, connect normally to test each interface.
6. method of work as claimed in claim 4; it is characterized in that; under this monitor state; this single-chip microcomputer is every one second Preset Time; send status poll instruction to this baseband chip; this baseband chip returns to this single-chip microcomputer with its state after receiving this status poll instruction; if the return state that this single-chip microcomputer is received is unusual or do not receive return state in one the 3rd Preset Time; then retransmit this status poll instruction; if retransmit and repeatedly do not receive normal return state yet, then judge this baseband chip operation irregularity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910045867A CN101788929A (en) | 2009-01-23 | 2009-01-23 | Baseband chip monitoring device and working method thereof |
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| CN200910045867A CN101788929A (en) | 2009-01-23 | 2009-01-23 | Baseband chip monitoring device and working method thereof |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117048A (en) * | 2012-12-04 | 2013-05-22 | 深圳市金立通信设备有限公司 | Liquid crystal display (LCD) static blank screen recovering method and device |
| CN105190563A (en) * | 2013-02-01 | 2015-12-23 | 胡斯华纳有限公司 | Method and device for identifying a power equipment work pattern |
| CN105791513A (en) * | 2014-12-22 | 2016-07-20 | 深圳富泰宏精密工业有限公司 | Anomaly processing system and method for baseband chips |
| CN106740133A (en) * | 2016-12-30 | 2017-05-31 | 广东美芝制冷设备有限公司 | The vehicle-mounted CAN power circuit of electric automobile, electric automobile and its power-supply system |
-
2009
- 2009-01-23 CN CN200910045867A patent/CN101788929A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103117048A (en) * | 2012-12-04 | 2013-05-22 | 深圳市金立通信设备有限公司 | Liquid crystal display (LCD) static blank screen recovering method and device |
| CN103117048B (en) * | 2012-12-04 | 2016-01-20 | 深圳市金立通信设备有限公司 | A kind of LCDs LCD electrostatic blank screen restoration methods and device |
| CN105190563A (en) * | 2013-02-01 | 2015-12-23 | 胡斯华纳有限公司 | Method and device for identifying a power equipment work pattern |
| CN105190563B (en) * | 2013-02-01 | 2018-07-24 | 胡斯华纳有限公司 | The method and apparatus of power-equipment operating mode for identification |
| US10054924B2 (en) | 2013-02-01 | 2018-08-21 | Husqvarna Ab | Method and device for identifying a power equipment work pattern |
| CN105791513A (en) * | 2014-12-22 | 2016-07-20 | 深圳富泰宏精密工业有限公司 | Anomaly processing system and method for baseband chips |
| CN106740133A (en) * | 2016-12-30 | 2017-05-31 | 广东美芝制冷设备有限公司 | The vehicle-mounted CAN power circuit of electric automobile, electric automobile and its power-supply system |
| CN106740133B (en) * | 2016-12-30 | 2018-12-04 | 广东美芝制冷设备有限公司 | Vehicle-mounted CAN power circuit, electric car and its power-supply system of electric car |
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Application publication date: 20100728 |