官方TRM中提到NUC230/240的UART0有提供到64 Bytes的接收缓冲区，UART1及UART2只提供了16Bytes的接收缓冲区，但uart.h文件中RFITL设定仅供到14 Bytes
想问如果想使用64 Bytes FIFO该如何设定，谢谢
/*---------------------------------------------------------------------------------------------------------*/
/* UART FIFO size constants defini
tions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART0_FIFO_SIZE 64 /*!< UART0 supports separated receive/transmit 64/64 bytes entry FIFO */
#define UART1_FIFO_SIZE 16 /*!< UART1 supports separated receive/transmit 16/16 bytes entry FIFO */
#define UART2_FIFO_SIZE 16 /*!< UART2 supports separated receive/transmit 16/16 bytes entry FIFO */
/*---------------------------------------------------------------------------------------------------------*/
/* UA_FCR constants definitions */
/*---------------------------------------------------------------------------------------------------------*/
#define UART_FCR_RFITL_1BYTE (0x0 << UART_FCR_RFITL_Pos) /*!< UA_FCR setting to set RX FIFO Trigger Level to 1 bit */
#define UART_FCR_RFITL_4BYTES (0x1 << UART_FCR_RFITL_Pos) /*!< UA_FCR setting to set RX FIFO Trigger Level to 4 bits */
#define UART_FCR_RFITL_8BYTES (0x2 << UART_FCR_RFITL_Pos) /*!< UA_FCR setting to set RX FIFO Trigger Level to 8 bits */
#define UART_FCR_RFITL_14BYTES (0x3 << UART_FCR_RFITL_Pos) /*!< UA_FCR setting to set RX FIFO Trigger Level to 14 bits */
#define UART_FCR_RTS_TRI_LEV_1BYTE (0x0 << UART_FCR_RTS_TRI_LEV_Pos) /*!< UA_FCR setting to set RTS Trigger Level to 1 bit */
#define UART_FCR_RTS_TRI_LEV_4BYTES (0x1 << UART_FCR_RTS_TRI_LEV_Pos) /*!< UA_FCR setting to set RTS Trigger Level to 4 bits */
#define UART_FCR_RTS_TRI_LEV_8BYTES (0x2 << UART_FCR_RTS_TRI_LEV_Pos) /*!< UA_FCR setting to set RTS Trigger Level to 8 bits */
#define UART_FCR_RTS_TRI_LEV_14BYTES (0x3 << UART_FCR_RTS_TRI_LEV_Pos) /*!< UA_FCR setting to set RTS Trigger Level to 14 bits */
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