谢谢！我看了，这个程序只在主机里有。

if ( ( pMsg->method == ATT_READ_RSP ) ||
( ( pMsg->method == ATT_ERROR_RSP ) &&
( pMsg->msg.errorRsp.reqOpcode == ATT_READ_REQ ) ) )
{
if ( pMsg->method == ATT_ERROR_RSP )
{
uint8 status = pMsg->msg.errorRsp.errCode;

LCD_WRITE_STRING_VALUE( "Read Error", status, 10, HAL_LCD_LINE_1 );
}
else
{
// After a successful read, display the read value
uint8 valueRead = pMsg->msg.readRsp.value[0];

LCD_WRITE_STRING_VALUE( "Read rsp:", valueRead, 10, HAL_LCD_LINE_1 );
NPI_PrintValue("Read rsp:",valueRead, 10);

}

simpleBLEProcedureInProgress = FALSE;
}

这一段是用来读的。

我要读从机的数据，从机发送用什么函数呢？请多指教。

else if ( ( pMsg->method == ATT_WRITE_RSP ) ||
( ( pMsg->method == ATT_ERROR_RSP ) &&
( pMsg->msg.errorRsp.reqOpcode == ATT_WRITE_REQ ) ) )
{

if ( pMsg->method == ATT_ERROR_RSP == ATT_ERROR_RSP )
{
uint8 status = pMsg->msg.errorRsp.errCode;

LCD_WRITE_STRING_VALUE( "Write Error", status, 10, HAL_LCD_LINE_1 );
}
else
{
// After a succesful write, display the value that was written and increment value
LCD_WRITE_STRING_VALUE( "Write sent:", simpleBLECharVal++, 10, HAL_LCD_LINE_1 );
}

simpleBLEProcedureInProgress = FALSE;

}

这个里面也没有写操作，只显示了一下。

這個是收到Write attribute response去做顯示，有什麼問題嗎？