PN7160 无响应

[chenyuansen]

在使用PN7160调试过程中，已确定I2C调通，但是读卡无响应，以下为相关log：

12-05 15:45:56.600 1221 4662 E libnfc_nci: [ERROR:nci_hrcv.cc(305)] unknown opcode:0x23
12-05 15:45:56.600 280 4656 D NxpTml : PN54X - Invoking I2C Read.....
12-05 15:45:57.093 280 4656 E NxpTml : Read _>>>>> Empty packet recieved !!
12-05 15:45:57.093 280 4656 D NxpTml : PN54X - I2C Read successful.....
12-05 15:45:57.093 280 4656 D NxpNciR : len = 3 > 612100
12-05 15:45:57.094 280 4656 D NxpTml : PN54X - Posting read message.....
12-05 15:45:57.094 280 4659 D NxpHal : read successful status = 0x0
12-05 15:45:57.094 280 4659 D NfccPowerTracker: NfccPowerTracker::ProcessNtf: Enter
12-05 15:45:57.095 1221 4662 I libnfc_nci: [INFO:nfc_ncif.cc(501)] NFC received ntf gid:1
12-05 15:45:57.095 280 4656 D NxpTml : PN54X - Read requested.....
12-05 15:45:57.095 280 4656 D NxpTml : PN54X - Invoking I2C Read.....
12-05 15:45:57.095 1221 4662 E libnfc_nci: [ERROR:nci_hrcv.cc(305)] unknown opcode:0x21
12-05 15:45:57.096 280 4656 E NxpTml : Read _>>>>> Empty packet recieved !!
12-05 15:45:57.096 280 4656 D NxpTml : PN54X - I2C Read successful.....
12-05 15:45:57.096 280 4656 D NxpNciR : len = 3 > 612300
12-05 15:45:57.096 280 4656 D NxpTml : PN54X - Posting read message.....
12-05 15:45:57.097 280 4659 D NxpHal : read successful status = 0x0
12-05 15:45:57.097 280 4659 D NfccPowerTracker: NfccPowerTracker::ProcessNtf: Enter
12-05 15:45:57.098 1221 4662 I libnfc_nci: [INFO:nfc_ncif.cc(501)] NFC received ntf gid:1
12-05 15:45:57.098 280 4656 D NxpTml : PN54X - Read requested.....
12-05 15:45:57.098 280 4656 D NxpTml : PN54X - Invoking I2C Read.....
12-05 15:45:57.098 1221 4662 E libnfc_nci: [ERROR:nci_hrcv.cc(305)] unknown opcode:0x23

是否可以协助分析下是相关流程存在问题还是其他原因呢？

[zengmin]

你好 我在Android12上也是类似问题。使用的外部晶振，配置如截图，示波器测量晶振可以输出27.12的波形。

[全林林]

请教下，我也遇到类似问题，这个问题解决了吗？

[Tomas_Parizek]

Hello chenyuansen, 

What power supply are you using for VUP? 

Can you check the following AN -> https://www.nxp.com/docs/en/application-note/AN13892.pdf  , please? 

Especially page 19 -> TXLDO check

BR

Tomas 

[danielchen]

是按照AN13189， PN7160 Android Porting Guider来移植的吗？ i2c驱动是  https://github.com/NXPNFCLinux/nxpnfc 吗？

[全林林]

你好，我也遇到类似问题，安卓13使用pn7160，有部分机器会出现这种情况，请教一下如何排查。

[全林林]

03-12 16:48:06.856 1248 1453 I libnfc_nci: [INFO:nfc_ncif.cc(815)] NFC received ntf gid:1
03-12 16:48:06.857 1248 1453 E libnfc_nci: [ERROR:nci_hrcv.cc(336)] unknown opcode:0x23
03-12 16:48:06.857 326 1455 D NxpTml : PN54X - Read requested.....
03-12 16:48:06.858 326 1455 D NxpTml : PN54X - Invoking I2C Read.....
01-18 08:00:48.215 1455 1455 W pn544_dev_read: reading 3 bytes.
01-18 08:00:48.215 1455 1455 W pn544_dev_read: block in reading.
03-12 16:48:07.138 485 516 W libprocessgroup: Failed to open /dev/stune/background/cgroup.procs: No such file or directory
01-18 08:00:48.709 0 0 W : [ C0] pn544 irq enter ----
01-18 08:00:48.709 1455 1455 W pn544_dev_read: Wakeup form irq.
01-18 08:00:48.709 1455 1455 W pn544_dev_read: start i2c transfer.
03-12 16:48:07.353 326 1455 E NxpTml : _>>>>> Empty packet recieved !!
03-12 16:48:07.353 326 1455 D NxpTml : PN54X - I2C Read successful.....len = 3
03-12 16:48:07.353 326 1455 D NxpTml : PN54X - Posting read message.....
03-12 16:48:07.353 326 1455 D NxpNciR : len = 3 <= 612300
03-12 16:48:07.353 326 1458 D NxpHal : read successful status = 0x0
03-12 16:48:07.355 326 1455 D NxpTml : PN54X - Read requested.....
03-12 16:48:07.355 326 1455 D NxpTml : PN54X - Invoking I2C Read.....
01-18 08:00:48.710 1455 1455 W IFD->PC :
01-18 08:00:48.710 1455 1455 W : 61
01-18 08:00:48.710 1455 1455 W : 23
01-18 08:00:48.710 1455 1455 W : 00
01-18 08:00:48.712 1455 1455 W pn544_dev_read: reading 3 bytes.
03-12 16:48:07.355 1248 1453 I libnfc_nci: [INFO:nfc_ncif.cc(815)] NFC received ntf gid:1
01-18 08:00:48.712 1455 1455 W pn544_dev_read: block in reading.
03-12 16:48:07.357 1248 1453 E libnfc_nci: [ERROR:nci_hrcv.cc(336)] unknown opcode:0x23

[Tomas_Parizek]

Hello @全林林 , 

Please check the following document -> https://www.nxp.com/docs/en/application-note/AN13892.pdf 

Especially chapter 9 ->TXLDO check 

BR

Tomas 

[全林林]

已经解决感谢支持

[zengmin]

能具体说明一下 解决方法吗？

[Tomas_Parizek]

Ok, Perfect ! 

Let us know if you need further assistance! 

BR

Tomas 

[chenyuansen]

是的，客户是按照这份文档跟驱动进行移植的，目前从log看一直会有以下提示信息，是否是正常现象呢，又或者是协议栈部分还存在问题？

[danielchen]

协议栈不会有问题， 很多客户都在使用。 可能是I2C的问题，  接收的包PN7160 无法识别

[chenyuansen]

但是从log看i2c已经下载固件成功了，且读写正常

[danielchen]

please also attach the configuration file here.

[chenyuansen]

配置文件如附加所示

[danielchen]

Hi @chenyuansen 

From your log,  RF_PLL_UNLOCKED_NTF,  it implies the clock source configuration not right.  please double check the clock configuration.

Regards

Daniel 

[chenyuansen]

目前配置的是PLL的，27.12M 的晶体输入，请问需要配置成多少呢？

[danielchen · Accepted solution]

which system clock source you are using?  PLL or XTAL?   This configuration is in file libnfc-nxp.conf