write-page
xod-dev/pn532-nfc/write-page
Writes data to the specified page of a Mifare Ultralight NFC tag.
To write data to a tag it should be paired first (use `pair-tag`)
Possible errors:
— Can't write the value
write-page
@/write-page
Writes data to the specified page of a Mifare Ultralight NFC tag.
To write data to a tag it should be paired first (use `pair-tag`)
Possible errors:
— Can't write the value
DEV@/pn532-device
PAGEnumber
A page number to write data to in range [0, 16]. Notice that first pages contains UID
IN1byte
IN2byte
IN3byte
IN4byte
UPDpulse
Trigger writing to an NFC tag
OKpulse
Fires on successful writing
C++ implementation
#pragma XOD evaluate_on_pin disable
#pragma XOD evaluate_on_pin enable input_UPD
#pragma XOD error_raise enable
node {
void evaluate(Context ctx) {
if (!isInputDirty<input_UPD>(ctx))
return;
auto nfc = getValue<input_DEV>(ctx);
uint8_t page = (uint8_t)getValue<input_PAGE>(ctx);
uint8_t data[4] = {
getValue<input_IN1>(ctx),
getValue<input_IN2>(ctx),
getValue<input_IN3>(ctx),
getValue<input_IN4>(ctx)
};
uint8_t success = nfc->mifareultralight_WritePage(page, data);
if (success) {
emitValue<output_OK>(ctx, 1);
} else {
raiseError(ctx);
}
}
}