System and method for realizing automatic restart and recovery of crash of RK3399 mainboard
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A RK3399, automatic restart technology, applied in the electronic field, achieves the effect of great promotion and application value, convenient application, and improved reliability
Inactive Publication Date: 2019-12-13
INSPUR FINANCIAL INFORMATION TECH CO LTD
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[0005] The technical task of the present invention is to provide a system and method for realizing the automatic restart and recovery of RK3399 motherboard crashes, to solve how to make the main control chip RK3399 automatically restart and resume normal work when a crash occurs, without manual intervention, and improve the reliability of the main control chip RK3399 sexual problems
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[0041] as attached figure 1 As shown, the system of the present invention that realizes RK3399 motherboard crash automatic restart recovery, the system includes,
[0042] The main control chip RK3399 is used to communicate with the micro control unit MCU;
[0043] The micro control unit MCU is used to communicate with the main control chip RK3399, make a judgment on the operation status of the main control chip RK3399, and choose whether to send a control signal to the logic circuit;
[0044] The power management unit PMU is used to provide power to the main control chip RK3399 to make the main control chip RK3399 work normally;
[0045] The logic circuit is used to convert the control signal sent by the micro control unit MCU into a RESET reset signal of the power management unit PMU to reset the power management unit PMU, so that the main control chip RK3399 is restarted.
[0046] Among them, the main control chip RK3399 sends specific information to the micro control unit...
Embodiment 2
[0051] as attached Figure 4 As shown, the method for realizing RK3399 motherboard crash automatic restart recovery of the present invention, the method steps are as follows:
[0052] S1. The main control chip RK3399 sends specific information to the micro control unit MCU through the I2C interface;
[0053] S2. The micro control unit MCU detects whether the specific information sent by the main control chip RK3399 is received through the I2C interface within the set time, and makes a judgment according to the detection result:
[0054] ①. If the specific information is received normally, continue to execute step S2, restart the timing and start a new round of detection;
[0055] ②. If no specific information is received, the next step is to execute step S3;
[0056] S3, the micro control unit MCU sends a control signal to the logic circuit through the IO interface;
[0057] S4. The logic circuit converts the control signal sent by the micro control unit MCU into a RESET re...
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Abstract
The invention discloses a system and a method for realizing automatic restart recovery of crash of an RK3399 mainboard which belongs to the technical field of electronics. The technical problem to besolved by the invention is how to enable a main control chip RK3399 to be automatically restarted to recover normal work when crash occurs without manual intervention. According to the technical scheme, the system comprises the main control chip RK3399, a micro control unit MCU, a power management unit PMU and a logic circuit; the main control chip RK3399 is used for communicating with the micro control unit MCU; the micro control unit MCU is used for communicating with the main control chip RK3399, judging the running state of the main control chip RK3399 and selecting whether to send a control signal to the logic circuit or not; the power management unit PMU is used for providing power for the main control chip RK3399, so that the main control chip RK3399 works normally; and the logic circuit is used for converting a control signal sent by the MCU into an RESET reset signal of the PMU to reset the PMU, so that the main control chip RK3399 is restarted. The invention also discloses amethod for realizing the automatic restart recovery of the crash of the RK3399 mainboard.
Description
technical field [0001] The invention relates to the field of electronic technology, in particular to a system and method for realizing automatic restart and recovery of RK3399 mainboard crash. Background technique [0002] RK3399 is a high-performance main control chip of Rockchip, based on dual-core Cortex-A72+quad-core Cortex-A53 architecture, the highest main frequency can reach 1.8GHz, internally integrated quad-core Mali-T860 GPU, supports 4K, H.265 hardware Decoding, with powerful computing and graphics processing capabilities. The RK3399 motherboard based on the RK3399 main control chip can be applied to many fields such as finance, industrial control, and people's livelihood. In most cases, the main board will be used in an unattended environment, which is very demanding on the reliability of the main board. During the long-term use of the main board, with the increase of the system running time, some problems may occur, and in the worst case, it will crash , causi...
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Application Information
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