一、描述你遇到的问题
我想开发nfc模块，给21外接一个nfc天线（用的是gipo9和10接口），烧录nfc——tag之后用app识别nfc卡发现读取不到，请问是什么原因
二、你具体做的所有步骤结果截图
我给代码添加了一些额外的输出，方便查看问题所在之处
三、当前开发板状态全景照片
四、开发板串口所有日志
Flashboot Init! id = 0x0
Power On
Reboot cause:0xF0F0
Reboot count:0x0
Reboot count:0x0
Flash Init ret = 0x0
No need to upgrade
Jump to addr = 0x9010B300
Debug uart init succ! flash length:0x80000, version: bs21 1.0.15
APP|System Power On
APP|System Reboot cause:0xf0f0, total reboot count:0, exception reboot count:0
at cmd init.
Sys PM: BUCK
cpu 0 entering scheduler
LOS_QueueCreate queueId 0
LOS_QueueCreate queueId 1
NFC Tag emulation started successfully!
NFC ID set successfully!
NDEF message encoded successfully!
NDEF message set to NFC Tag successfully!
NDEF message started successfully!