Memory system and wireless communication method by memory system
A memory system includes a nonvolatile memory area including a first area in which write-in and read-out actions on data are performed and a second area in which such actions are prohibited, first and second interfaces, and a controller configured to connect to a second host using a first wireless communication configuration when the controller determines a second wireless communication configuration to connect to the second host device is not retained in the first area, the controller controlling the first interface in so that the first host device writes data into the memory area on a basis of a command provided from the second host device. When the controller changes the first wireless communication configuration, the controller connects to the second host device using the second wireless communication configuration, and the first interface notifies an error to the first host device not to write data into the memory area.
1. A memory system, comprising:
a nonvolatile memory area comprising a first area configured to allow a write-in action and a read-out action to be performed on data by a first host device and a second host device, and a second area configured to retain a first wireless communication configuration to connect to the second host device via wireless communication and configured to prohibit a write-in action and a read-out action to be performed on data by the first host device and the second host device;
a first interface configured to connect to the first host device;
a second interface configured to connect to the second host device via wireless communication; and
a controller configured to connect to the second host device using the first wireless communication configuration in a case that the controller determines a second wireless communication configuration to connect to the second host device is not retained in the first area,
the controller controlling the first interface so that the first host device is configured to not write data into the memory area on a basis of a command provided from the second host device, when the controller changes the first wireless communication configuration via the second host device,
the controller copying the first wireless communication configuration into the first area after the first interface is controlled so that the first host device is configured not to write data into the memory area, generating the second wireless communication configuration by changing the first wireless communication configuration copied in the first area, and connecting to the second host device using the second wireless communication configuration; wherein
the first interface notifies an error to the first host device when the first host device performs the write-in action to the memory area, in a case that the first interface is controlled so that the first host device is configured not to write data into the memory area.
2. The memory system of claim 1 , wherein in a case that the controller changes the first wireless communication configuration via the second host device, the first interface automatically acts so that the first host device is configured not to write data into the memory area when the controller receives, from the host device, a notice in which the first wireless communication configuration is changed.
3. The memory system of claim 1 , wherein a state in which the first host device is configured not to write data into the memory area is cancelled by an instruction of the second host device to the controller for re-starting.
4. The memory system of claim 1 , wherein a state in which the first host device is configured not to write data into the memory area is cancelled by issuing a cancel command of the second host device to the controller.
5. A memory system, comprising:
a nonvolatile memory area comprising a first area configured to allow a write-in action and a read-out action to be performed on data by a first host device and a second host device, and a second area configured to retain a first wireless communication configuration to connect to the second host device via wireless communication and configured to prohibit a write-in action and a read-out action to be performed on data by the first host device and the second host device;
a first interface configured to connect to the first host device;
a second interface configured to connect to the second host device via wireless communication; and
a controller configured to connect to the second host device using the first wireless communication configuration in a case that the controller determines a second wireless communication configuration to connect to the second host device is not retained in the first area, wherein
when the controller changes the first wireless communication configuration via the second host device, the controller copies the first wireless communication configuration into the first area, generates the second wireless communication configuration by changing the first wireless communication configuration copied in the first area, and connects to the second host device using the second wireless communication configuration.
6. The memory system of claim 5 , wherein when the controller changes the first wireless communication configuration via the second host device, the controller controls the first interface in a state that the first host device is configured not to write data into the memory area.
7. The memory system of claim 6 , wherein when the controller changes the first wireless communication configuration via the second host device, the controller controls the first interface on a basis of a command provided from the second host device.
8. The memory system of claim 6 , wherein the first interface notifies an error to the first host device when the first host device performs the write-in action to the memory area, in a case that the first interface is controlled so that the first host device is configured not to write data into the memory area.
9. The memory system of claim 5 , wherein in a case that the controller changes the first wireless communication configuration via the second host device, the first interface automatically acts so that the first host device is configured not to write data into the memory area when the controller receives a notice in which the first wireless communication configuration is changed, from the second host device.
10. The memory system of claim 5 , wherein a state in which the first host device is configured not to write data into the memory area is cancelled by an instruction of the second host device to the controller for re-starting.
11. The memory system of claim 5 , wherein a state in which the first host device is configured not to write data into the memory area is cancelled by issuing a cancel command of the second host device to the controller.
12. A wireless communication method by a memory system, the memory system comprising a first interface, a second interface, a controller and a nonvolatile memory area, the nonvolatile memory area comprising a first area configured to allow a write-in action and a read-out action to be performed on data by the first host device and the second host device, and a second area configured to retain a first wireless communication configuration to connect to the second host device via wireless communication and configured to prohibit a write-in action and a read-out action to be performed on data by the first host device and the second host device, the method comprising:
setting the memory system in the first host device;
controlling the second interface using the first wireless communication configuration by the controller to perform wireless communication between the controller and the second host device via wireless LAN in a case that the controller determines a second wireless communication configuration to connect to the second host device is configured not to be retained in the first area;
issuing a command in which the memory system is configured not to write data into the nonvolatile memory area from the first host device, to the first interface by the second host device;
controlling the first interface on a basis of the command provided from the second host device so that the first host device is configured not to write data into the memory area;
copying the first wireless communication configuration into the first area;
generating the second wireless communication configuration by changing the first wireless communication configuration copied in the first area;
connecting the controller to the second host device using the second wireless communication configuration; and
transmitting data from the second host device to the first area.
13. The wireless communication method of claim 12 , further comprising:
notifying an error from the first interface to the first host device when the first host device performs a write-in action of data to the memory area, after connecting the controller to the second device.
14. The wireless communication method of claim 12 , further comprising:
transmitting data in the first area by the first interface to the second area when the first host device performs a write-in action of data to the memory area, after connecting the controller to the second device.
15. The wireless communication method of claim 12 , wherein
a state, in which the first host device is configured not to write data into the memory area, is cancelled by an instruction of the second host device to the controller for re-starting.
16. The wireless communication method of claim 12 , wherein
a state, in which the first host device is configured not to write data into the memory area, is cancelled by issuing a cancel command of the second host device to the controller.