Difference between revisions of "NFC:WriteAppData"
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| Line 59: | Line 59: | ||
=Description= | =Description= | ||
| − | This is used to write to the [[Amiibo]] app-data stored in memory, when the app-data was already [[NFC:InitializeWriteAppData|setup]] for the user application. | + | This is used to write to the [[Amiibo]] app-data stored in memory, when the app-data was already [[NFC:InitializeWriteAppData|setup]] for the user application. When the size is <0xD8-bytes, the remaining app-data in memory has data from a "PRNG" written to it. |
Besides the usual NFC module state checks, this command can only be used when a certain state u8 field is non-zero, otherwise an error is returned. | Besides the usual NFC module state checks, this command can only be used when a certain state u8 field is non-zero, otherwise an error is returned. | ||
Latest revision as of 05:31, 17 April 2015
Request[edit]
| Index Word | Description |
|---|---|
| 0 | Header code [Starting with 9.3.0-X: 0x00160242] |
| 1 | Size |
| 2-9 | See below input struct. |
| 10 | (Size<<14) | 2 |
| 11 | Pointer to input appdata buf |
Response[edit]
| Index Word | Description |
|---|---|
| 0 | Header code |
| 1 | Result code |
Input struct[edit]
| Offset | Size | Description |
|---|---|---|
| 0x0 | 0x7 | NFC tag 7-byte UID, must match the current tag UID stored in NFC module state. |
| 0x8 | 0x2 | Unused |
| 0xA | 0x1 | Size of the above UID, must match a NFC module state field(value 0x7). |
| 0xB | 0x15 | Unused |
Description[edit]
This is used to write to the Amiibo app-data stored in memory, when the app-data was already setup for the user application. When the size is <0xD8-bytes, the remaining app-data in memory has data from a "PRNG" written to it.
Besides the usual NFC module state checks, this command can only be used when a certain state u8 field is non-zero, otherwise an error is returned.