uartasm.h54

TMS320C54系列在CCS3.1 下实验教程

;********************************************************
TL16C550_BASE_ADDRESS       .set  0x4000
;********************************************************

;********************************************************
;the following is registers for read
ADDR_RBR                    .set TL16C550_BASE_ADDRESS+0
ADDR_IIR                    .set TL16C550_BASE_ADDRESS+2
ADDR_LSR                    .set TL16C550_BASE_ADDRESS+5
ADDR_MSR                    .set TL16C550_BASE_ADDRESS+6		
;********************************************************

;********************************************************
;the following is registers for write
ADDR_THR                    .set TL16C550_BASE_ADDRESS+0
ADDR_IER                    .set TL16C550_BASE_ADDRESS+1
ADDR_FCR                    .set TL16C550_BASE_ADDRESS+2
ADDR_LCR                    .set TL16C550_BASE_ADDRESS+3
ADDR_MCR                    .set TL16C550_BASE_ADDRESS+4
;********************************************************

;*********************************************************
;when LCR(7)=1 (set DLAB)  set LSB and MSB
ADDR_DIV_LSB                .set TL16C550_BASE_ADDRESS+0
ADDR_DIV_MSB                .set TL16C550_BASE_ADDRESS+1
;********************************************************

;********************************************************
ADDR_SCR                  .set TL16C550_BASE_ADDRESS+7
;********************************************************

;********************************************************
;Constants
STACK_ADDR		.set	0x0e00

ADDR_CNTL1  	.set 	0x0000
ADDR_STAT		.set	0x0001
ADDR_DMCNTL		.set	0x0002
ADDR_DBIO		.set	0x0003
ADDR_CNTL2		.set	0x0004
ADDR_SEMO		.set	0x0005
ADDR_SEMI		.set	0x0006
;********************************************************

;********************************************************
;Functions
	.global DSP_Init
	.global UART_Init
	.global main
;********************************************************

;end of UART.h54