ARM9教程DSP教程FPGA教程CPLD教程12A软硬件设计0229(14)

ARM9教程DSP教程FPGA教程CPLD教程12A软硬件设计0229

1.7 llpi_wb_srl0.c

/*****************************************************************************\ |*

|* COPYRIGHT: Copyright (c) 2004, PurPer |*

|* DESCRIPTION: SRL0 device driver |*

\*****************************************************************************/

#include "llpi_util_timing.h" #include "llpi_wb_srl0.h" #include "llpi_common.h"

/* UART hardware definitions */

#define UART_BASE(x) ((volatile unsigned char *) x)

#define UART_PCON(x) UART_BASE(x)[0] #define UART_SCON(x) UART_BASE(x)[1] #define UART_SBUF(x) UART_BASE(x)[2] #define UART_SRELL(x) UART_BASE(x)[3] #define UART_SRELH(x) UART_BASE(x)[4] #define UART_TCON(x) UART_BASE(x)[5] #define UART_TL(x) UART_BASE(x)[6] #define UART_TH(x) UART_BASE(x)[7] #define UART_ADCON(x) UART_BASE(x)[8]

#define GET_UART_TI(x) (UART_SCON(x)&2)

#define SET_UART_TI(x, b) (UART_SCON(x)=(UART_SCON(x) & 0xFD) | (b << 1))

#define GET_UART_RI(x) (UART_SCON(x)&1)

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