一、描述你遇到的问题
使用3863进行键盘开发，使用移位寄存器法识别按键，发送数据时发生报错。
二、你具体做的所有步骤结果截图
相关部分代码如图，初始化检测号案件后发送
三、当前开发板状态全景照片
一切正常
四、开发板串口所有日志
请在此处粘贴串口日志
Attempting to send 7 bytes of data to UART...
UART Write Error: -2147479488
UART Write Error: -2147479488
Attempting to send 7 bytes of data to UART...
UART Write Error: -2147479488
UART Write Error: -2147479488
Attempting to send 7 bytes of data to UART...
UART Write Error: -2147479488
UART Write Error: -2147479488
Attempting to send 7 bytes of data to UART...
UART Write Error: -2147479488
UART Write Error: -2147479488
Attempting to send 7 bytes of data to UART...
UART Write Error: -2147479488
UART Write Error: -2147479488
Attempting to send 7 bytes of data to UART...
UART Write Error: -2147479488
UART Write Error: -2147479488
Attempting to send 7 bytes of data to UART...
UART Write Error: -2147479488
UART Write Error: -2147479488
Attempting to send 7 bytes of data to UART...
UART Write Error: -2147479488
UART Write Error: -2147479488
Attempting to send 7 bytes of data to UART...
UART Write Error: -2147479488
UART Write Error: -2147479488
Attempting to send 7 bytes of data to UART...
UART Write Error: -2147479488
UART Write Error: -2147479488
Attempting to send 7 bytes of data to UART...
UART Write Error: -2147479488
UART Write Error: -2147479488
Attempting to send 7 bytes of data to UART...
UART Write Error: -2147479488
UART Write Error: -2147479488
Attempting to send 7 bytes of data to UART...
UART Write Error: -2147479488
UART Write Error: -2147479488
Attempting to send 7 bytes of data to UART...
UART Write Error: -2147479488
