uart_func.h

本人最近编写的dsp2407采用ds18b20测温程序

ioport unsigned port8018;
#define DAC0 port8018
ioport unsigned port8019;
#define DAC1 port8019
ioport unsigned port801A;
#define DAC2 port801A
ioport unsigned port801B;
#define DAC3 port801B
ioport unsigned port8020;
#define DAC_RESET port8020


#ifndef _UART_REGISTERS
#define _UART_REGISTERS

ioport unsigned port0008;
#define INT1_RD	port0008

ioport unsigned port8008;
#define UARTA_RHR	port8008
ioport unsigned port8008;
#define UARTA_THR	port8008
ioport unsigned port8009;
#define UARTA_IER	port8009
ioport unsigned port800A;
#define UARTA_FCR	port800A
ioport unsigned port800A;
#define UARTA_IIR	port800A
ioport unsigned port800B;
#define UARTA_LCR	port800B
ioport unsigned port800C;
#define UARTA_MCR	port800C
ioport unsigned port800D;
#define UARTA_LSR	port800D
ioport unsigned port800E;
#define UARTA_MSR	port800E
ioport unsigned port800F;
#define UARTA_SPR	port800F


ioport unsigned port8008;
#define UARTA_DLL	port8008
ioport unsigned port8009;
#define UARTA_DLH	port8009
ioport unsigned port8008;
#define UARTA_EFR	port800A
ioport unsigned port800F;
#define UARTA_FIFORDY	port800F

ioport unsigned port800F;
#define UARTA_XON1	port8008
ioport unsigned port800F;
#define UARTA_XON2	port8009


ioport unsigned port8008;
#define UARTB_RHR	port8010
ioport unsigned port8008;
#define UARTB_THR	port8010
ioport unsigned port8009;
#define UARTB_IER	port8011
ioport unsigned port800A;
#define UARTB_FCR	port8012
ioport unsigned port800A;
#define UARTB_IIR	port8012
ioport unsigned port800B;
#define UARTB_LCR	port8013
ioport unsigned port800C;
#define UARTB_MCR	port8014
ioport unsigned port800D;
#define UARTB_LSR	port8015
ioport unsigned port800E;
#define UARTB_MSR	port8016
ioport unsigned port800F;
#define UARTB_SPR	port8017


ioport unsigned port8008;
#define UARTB_DLL	port8010
ioport unsigned port8009;
#define UARTB_DLH	port8011
ioport unsigned port8008;
#define UARTB_EFR	port8012
ioport unsigned port800F;
#define UARTB_FIFORDY	port8017

ioport unsigned port800F;
#define UARTB_XON1	port8010
ioport unsigned port800F;
#define UARTB_XON2	port8011

#endif

/*	波特率设置	*/

#define buad_1k2_l	0xE2
#define buad_1k2_h	0x04
#define buad_2k4_l	0x71
#define buad_2k4_h	0x02
#define buad_4k8_l	0x38
#define buad_4k8_h	0x01
#define buad_9k6_l	0x9C
#define buad_9k6_h	0x00
#define buad_19k2_l	0x4E
#define buad_19k2_h	0x00
#define buad_38k4_l	0x27
#define buad_38k4_h	0x00

/*	UART控制字设置	*/

#define data_w5     0x0000 /*数据长度为5*/
#define data_w6     0x0001 /*数据长度为6*/
#define data_w7     0x0002 /*数据长度为7*/
#define data_w8     0x0003 /*数据长度为8*/

#define data_s1     0x0000 /*数据停止位为1*/
#define data_s2     0x0004 /*数据停止位为1个半（数据长度为5）或2个*/

#define data_p      0x0008 /*设置较验位*/
#define data_po     0x0000 /*设置奇较验*/
#define data_pe     0x0010 /*设置偶较验*/
#define data_parity 0x0020 /*设置较验位*/
#define data_break  0x0040 /*设置当发送终止时，输出为低*/
#define uart_parity data_p + data_pe 
#define LC_1_DLAB   0x0080
#define LC_0_DLAB   0x0000

/*FIFO设置*/
#define fifo_disable 0x0000 /*禁止fifo*/
#define fifo_enable  0x0001 /*使能fifo*/
#define fifo_rreset  0x0002 /*复位接收fifo*/
#define fifo_xreset  0x0004 /*复位发送fifo*/
#define fifo_reset   0x0007
#define fifo_dma     0x0008 /*设置DMA方式*/
#define fifo_txdip8    0x0000 /*fifo深度为8个*/
#define fifo_txdip16   0x0010 /*fifo深度为16个*/
#define fifo_txdip32   0x0020 /*fifo深度为32个*/
#define fifo_txdip56   0x0030 /*fifo深度为56个*/
#define fifo_rxdip8    0x0000 /*fifo深度为8个*/
#define fifo_rxdip16   0x0040 /*fifo深度为16个*/
#define fifo_rxdip32   0x0080 /*fifo深度为56个*/
#define fifo_rxdip56   0x00b0 /*fifo深度为60个*/

#define UartLoop       0x000b /*设置自闭环方式*/

/*UART中断设置*/
#define  uartint_rhr   0x0001 /*设置接收中断*/
#define  uartint_thr   0x0002 /*设置发送中断*/
#define  uartint_rls   0x0004 /*设置接收状态中断*/
#define  uartint_msr   0x0008 /*设置MODEM状态中断*/
#define  uart_sleep    0x0010 /*设置接收中断*/
#define  uartint_xoff  0x0020 /*设置xoff中断*/
#define  uartint_rts   0x0040 /*设置rts中断*/
#define  uartint_cts   0x0080 /*设置cts中断*/

#define  uart_enable   0x0008 /*使能UART中断*/