After above failure, tried to re-lunch the app, will fail. I have to power off my device to make nfcDemoApp work again.
root@qrb5165-rb5:/# nfcDemoApp poll
#########################################################################################
## NFC demo ##
#########################################################################################
## Poll mode activated ##
#########################################################################################
... press enter to quit ...
2024:04:23-02:30:36.985 find found NXPLOG_TML_LOGLEVEL=(0x0)
2024:04:23-02:30:36.985 GetNxpNumValue: NXP Config Parameter : NXPLOG_TML_LOGLEVEL=(0x0)
2024:04:23-02:30:36.986 find found NXPLOG_FWDNLD_LOGLEVEL=(0x3)
2024:04:23-02:30:36.986 GetNxpNumValue: NXP Config Parameter : NXPLOG_FWDNLD_LOGLEVEL=(0x3)
2024:04:23-02:30:36.986 find found NXPLOG_NCIX_LOGLEVEL=(0x3)
2024:04:23-02:30:36.986 GetNxpNumValue: NXP Config Parameter : NXPLOG_NCIX_LOGLEVEL=(0x3)
2024:04:23-02:30:36.986 find found NXPLOG_NCIR_LOGLEVEL=(0x3)
2024:04:23-02:30:36.987 GetNxpNumValue: NXP Config Parameter : NXPLOG_NCIR_LOGLEVEL=(0x3)
2024:04:23-02:30:36.988 initializeGlobalDebugEnabledFlag: level=1
2024:04:23-02:30:36.988 initializeGlobalDebugEnabledFlag: level=1
2024:04:23-02:30:36.988 readConfig Opened base config /usr/local/etc/libnfc-nci.conf
2024:04:23-02:30:36.989 NfcAdaptation::Initialize: Overriding NFA_EE_MAX_EE_SUPPORTED to use 1
2024:04:23-02:30:36.989 verify_stack_non_volatile_store
2024:04:23-02:30:36.989 crcChecksumVerifyIntegrity: filename=/nfaStorage.bin1
2024:04:23-02:30:36.990 crcChecksumVerifyIntegrity: filename=/nfaStorage.bin4
2024:04:23-02:30:36.990 crcChecksumVerifyIntegrity: filename=/nfaStorage.bin2
2024:04:23-02:30:36.990 crcChecksumVerifyIntegrity: filename=/nfaStorage.bin3
2024:04:23-02:30:36.990 crcChecksumVerifyIntegrity: filename=/nfaStorage.bin5
2024:04:23-02:30:36.990 Initialize: preserve stack NV store
2024:04:23-02:30:36.991 GKI_create_task func=0x0x7f9b688140 id=4 name=NFCA_TASK stack=0x(nil) stackSize=0
2024:04:23-02:30:36.991 GKI creating task 4, pCond/pMutex=(nil)/(nil)
2024:04:23-02:30:36.991 Leaving GKI_create_task 0x7f9b688140 4 7f9a91e1c0 NFCA_TASK (nil) 0
2024:04:23-02:30:36.991 GKI_create_task func=0x0x7f9b689740 id=0 name=NFCA_THREAD stack=0x(nil) stackSize=0
2024:04:23-02:30:36.991 GKI creating task 0, pCond/pMutex=(nil)/(nil)
2024:04:23-02:30:36.992 gki_task_entry task_id=4, thread_id=7f9a91e1c0/7f9a91e1c0, pCond/pMutex=(nil)/(nil)
2024:04:23-02:30:36.992 NfcAdaptation::NFCA_TASK: enter
2024:04:23-02:30:36.992 GKI_run enter
2024:04:23-02:30:36.992 Start/Stop GKI_timer_update_registered!
2024:04:23-02:30:36.992 GKI_run, run_cond(0x7f9b75d888)=1
2024:04:23-02:30:36.992 Leaving GKI_create_task 0x7f9b689740 0 7f9a11d1c0 NFCA_THREAD (nil) 0
2024:04:23-02:30:36.992 gki_task_entry task_id=0, thread_id=7f9a11d1c0/7f9a11d1c0, pCond/pMutex=(nil)/(nil)
2024:04:23-02:30:36.993 NfcAdaptation::Thread: enter
2024:04:23-02:30:36.993 GKI_create_task func=0x0x7f9b646198 id=3 name=NFC_TASK stack=0x(nil) stackSize=0
2024:04:23-02:30:36.993 GKI creating task 3, pCond/pMutex=0x7f9a11c8c8/0x7f9a11c898
2024:04:23-02:30:36.993 Leaving GKI_create_task 0x7f9b646198 3 7f9991c1c0 NFC_TASK (nil) 0
2024:04:23-02:30:36.993 gki_task_entry task_id=3, thread_id=7f9991c1c0/7f9991c1c0, pCond/pMutex=0x7f9a11c8c8/0x7f9a11c898
2024:04:23-02:30:36.993 NFC_TASK started.
2024:04:23-02:30:36.993 GKI_wait task=3, pCond/pMutex = 0x7f9a11c8c8/0x7f9a11c898
2024:04:23-02:30:36.993 GKI_exit_task 0 done
2024:04:23-02:30:36.993 NfcAdaptation::Thread: exit
2024:04:23-02:30:36.993 gki_task task_id=0 terminating
2024:04:23-02:30:36.993 NfcAdaptation::Initialize: exit
2024:04:23-02:30:36.993 NFA_Init
2024:04:23-02:30:36.994 nfa_dm_init
2024:04:23-02:30:36.994 id=1, enable_cplt_mask=0x0
2024:04:23-02:30:36.994 nfa_p2p_init
2024:04:23-02:30:36.994 id=3, enable_cplt_mask=0x8
2024:04:23-02:30:36.994 Nfc: nfa_snep_init (): is_dta_mode=0
2024:04:23-02:30:36.994 Nfc: nfa_snep_default_init ()
2024:04:23-02:30:36.994 id=4, enable_cplt_mask=0x18
2024:04:23-02:30:36.994 nfa_rw_init
2024:04:23-02:30:36.994 id=5, enable_cplt_mask=0x38
2024:04:23-02:30:36.994 nfa_ce_init
2024:04:23-02:30:36.994 id=6, enable_cplt_mask=0x78
2024:04:23-02:30:36.994 nfa_ee_init
2024:04:23-02:30:36.994 id=2, enable_cplt_mask=0x7c
2024:04:23-02:30:36.994 nfa_t4tnfcee_init
2024:04:23-02:30:36.994 find found NXP_T4T_NFCEE_ENABLE=(0x1)
2024:04:23-02:30:36.994 GetNxpNumValue: NXP Config Parameter : NXP_T4T_NFCEE_ENABLE=(0x1)
2024:04:23-02:30:36.994 id=9, enable_cplt_mask=0x27c
2024:04:23-02:30:36.994 llcp_init
2024:04:23-02:30:36.995 num_rx_buff = 9, rx_congest_start = 6, rx_congest_end = 4, max_num_ll_rx_buff = 2
2024:04:23-02:30:36.995 max_num_tx_buff = 21, max_num_ll_tx_buff = 6
2024:04:23-02:30:36.995 SAP:0x1, link_type:0x2, ServiceName:<urn:nfc:sn:sdp>
2024:04:23-02:30:36.995 Registered SAP = 0x01
2024:04:23-02:30:36.995 NFA_Enable
2024:04:23-02:30:36.995 NFA got event 0x0100
2024:04:23-02:30:36.995 event: NFA_DM_API_ENABLE_EVT (0x00)
2024:04:23-02:30:36.995 nfa_dm_enable
2024:04:23-02:30:36.995 NFC_Enable
2024:04:23-02:30:36.995 nfc_set_state 0 (NONE)->1 (W4_HAL_OPEN)
2024:04:23-02:30:36.995 NfcAdaptation::HalOpen
2024:04:23-02:30:36.995 phNxpNci_MinOpen(): enter
2024:04:23-02:30:36.996 find found NXPLOG_NCIHAL_LOGLEVEL=(0x3)
2024:04:23-02:30:36.996 GetNxpNumValue: NXP Config Parameter : NXPLOG_NCIHAL_LOGLEVEL=(0x3)
2024:04:23-02:30:36.997 find found NXPLOG_EXTNS_LOGLEVEL=(0x3)
2024:04:23-02:30:36.997 GetNxpNumValue: NXP Config Parameter : NXPLOG_EXTNS_LOGLEVEL=(0x3)
2024:04:23-02:30:36.997 find found NXPLOG_TML_LOGLEVEL=(0x0)
2024:04:23-02:30:36.997 GetNxpNumValue: NXP Config Parameter : NXPLOG_TML_LOGLEVEL=(0x0)
2024:04:23-02:30:36.997 find found NXPLOG_FWDNLD_LOGLEVEL=(0x3)
2024:04:23-02:30:36.997 GetNxpNumValue: NXP Config Parameter : NXPLOG_FWDNLD_LOGLEVEL=(0x3)
2024:04:23-02:30:36.997 find found NXPLOG_NCIX_LOGLEVEL=(0x3)
2024:04:23-02:30:36.997 GetNxpNumValue: NXP Config Parameter : NXPLOG_NCIX_LOGLEVEL=(0x3)
2024:04:23-02:30:36.997 find found NXPLOG_NCIR_LOGLEVEL=(0x3)
2024:04:23-02:30:36.997 GetNxpNumValue: NXP Config Parameter : NXPLOG_NCIR_LOGLEVEL=(0x3)
2024:04:23-02:30:36.997 phNxpLog_InitializeLogLevel: global =3, Fwdnld =3, extns =3, hal =3, tml =0, ncir =3, ncix =3
2024:04:23-02:30:36.997 find found MIFARE_READER_ENABLE=(0x1)
2024:04:23-02:30:36.997 GetNxpNumValue: NXP Config Parameter : MIFARE_READER_ENABLE=(0x1)
2024:04:23-02:30:36.997 Entering phNxpNciHal_init_monitor
2024:04:23-02:30:36.997 Returning with SUCCESS
2024:04:23-02:30:36.997 find found NXP_NFC_DEV_NODE
2024:04:23-02:30:36.997 GetNxpStrValue: NXP Config Parameter : NXP_NFC_DEV_NODE
2024:04:23-02:30:36.998 phTmlNfc_Init Entry......
2024:04:23-02:30:36.998 find found NXP_TRANSPORT=(0x0)
2024:04:23-02:30:36.998 GetNxpNumValue: NXP Config Parameter : NXP_TRANSPORT=(0x0)
2024:04:23-02:30:36.998 getTransport Requested transportType: 0
2024:04:23-02:30:36.998 OpenAndConfigure Opening port=/dev/nxpnfc
2024:04:23-02:30:37.008 NfccReset, VEN eType 0
2024:04:23-02:30:37.039 NfccReset, VEN eType 1
2024:04:23-02:30:37.060 PN54X - Tml Reader Thread Started................
2024:04:23-02:30:37.060 phTmlNfc_Init exit wInitStatus=0
2024:04:23-02:30:37.060 PN54X - Tml Writer Thread Started................
2024:04:23-02:30:37.061 PN54X - Tml Writer Thread Running................
2024:04:23-02:30:37.061 thread started
2024:04:23-02:30:37.061 PN54X - Read requested.....
2024:04:23-02:30:37.062 PN54X - Invoking I2C Read.....
2024:04:23-02:30:37.062 PN54X - Write requested.....
2024:04:23-02:30:37.062 PN54X - Invoking I2C Write.....
2024:04:23-02:30:37.080 Write errno : 6b
2024:04:23-02:30:37.080 PN54X - Error in I2C Write.....
2024:04:23-02:30:37.081 PN54X - Posting Fresh Write message.....
2024:04:23-02:30:37.081 PN54X - Tml Writer Thread Running................
2024:04:23-02:30:37.081 write error status = 0x1ff