How do I write strings with NFCTAG_WriteData

[Schuyler]

I'm using FP-SNS-SMARTAG1, but I can't write strings correctly with code, and I can't write anything, what should I do?

 while (1)
 {
 /* Wake Up due to RTC timer */
 if(WakeUpTimerInterrupt) {
 WakeUpTimerInterrupt =0;
 WakeUpTimerCallBack();
 }
 
 /* There are a RF activity */
 if(RFActivity) {
 RFActivity = 0;
 DetectRFActivity();
 }
 SmarTag_LED_GREEN_On();

 /* Init SmarTag sensor */
 //InitSmarTagSensor();
 //MEMS_Sensors_ReadData(); 
 char str[] = "Hello, NFC!"; // String variable instead of string literal
 const uint16_t address = 0x00;
 const uint16_t size = strlen(str) + 1; // Include null terminator

 // Call the NFC07A1_NFCTAG_WriteData function
 SMARTAG1_NFCTAG_WriteData(SMARTAG1_NFCTAG_INSTANCE, (uint8_t *)str, address, size);


 if(!WakeUpTimerIsSet) {
 /* task executed, now can set next wakeup timer */
 if(HAL_RTCEx_SetWakeUpTimer_IT(&hrtc, 0, RTC_WAKEUPCLOCK_CK_SPRE_16BITS)!= HAL_OK) {
 Error_Handler();
 }
 
 WakeUpTimerIsSet= 1;
 }
 
#ifndef SMARTAG_ENABLE_DEBUG
 /* -> Stop mode */
 HAL_PWR_EnterSTOPMode(PWR_LOWPOWERREGULATOR_ON, PWR_STOPENTRY_WFI);
#else /* SMARTAG_ENABLE_DEBUG */
 /* Wait Next event */
 __WFI();
#endif /* SMARTAG_ENABLE_DEBUG */
 /* USER CODE END WHILE */

 /* USER CODE BEGIN 3 */
 }