Configurable Peripheral Device Control Method and Portable Terminal
A technology for peripheral devices and portable terminals, applied in the field of communications, can solve problems such as increased delay, and achieve the effect of reducing occupation and shortening control delay.
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[0057] see figure 1 , which is the flow chart of the first embodiment of the control method of the configurable peripheral device of the present application:
[0058] Step 101: When the first subsystem obtains the control right of the configurable peripheral device for the first time, it initializes the configurable peripheral device and generates first configuration information.
[0059] When the first subsystem initializes the configurable peripheral device, it can allocate resources including address space for the configurable peripheral device, and the resources can also include interrupt resources, etc., and write the above resources into the configuration space of the configurable peripheral device In the configuration space, the configuration space is usually composed of multiple registers, which are used to store various resources, and then provide service programs for the configurable peripheral devices, and finally set the address space allocated to the configurable ...
no. 1 example
[0092] see Figure 4 , which is the block diagram of the first embodiment of the portable terminal of the present application:
[0093]The portable terminal includes: at least two subsystems, the at least two subsystems include a first subsystem 410 and a second subsystem 420, and at least one configurable peripheral device 430, the at least one configurable peripheral device 430 is the at least one Shared equipment for both subsystems. Among them, for the convenience of example, Figure 4 Only the above two subsystems and one configurable peripheral are shown in .
[0094] Wherein, the first subsystem 410 includes:
[0095] The initialization unit 411 is configured to initialize the configurable peripheral device when the first subsystem obtains the control right of the configurable peripheral device for the first time, generate first configuration information, and use the Configurable peripherals described above;
[0096] a backup unit 412, configured to back up the fir...
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