user_infer.h

在C54X DSP下写的串口收发程序

//filename:user_infer.h
//定义MCBSP寄存器的地址及子地址
#define		SPSA_ADDR(port)		(port?0x48:0x38)
#define		SPSD_ADDR(port)		(port?0x49:0x39)

#define		DRR2_ADDR(port)		(port?0x40:0x20)
#define		DRR1_ADDR(port)		(port?0x41:0x21)
#define		DXR2_ADDR(port)		(port?0x42:0x22)
#define		DXR1_ADDR(port)		(port?0x43:0x23)

#define		MCBSP_ACCSUB_ADDR(port)		(port?0x49:0x39)

#define		SPCR1_SUBADDR			0x00
#define		SPCR2_SUBADDR			0x01
#define		RCR1_SUBADDR			0x02
#define		RCR2_SUBADDR			0x03
#define		XCR1_SUBADDR			0x04
#define		XCR2_SUBADDR			0x05
#define		SRGR1_SUBADDR			0x06
#define		SRGR2_SUBADDR			0x07
#define		MCR1_SUBADDR			0x08
#define		MCR2_SUBADDR			0x09
#define		RCERA_SUBADDR			0x0A
#define		RCERB_SUBADDR			0x0B
#define		XCERA_SUBADDR			0x0C
#define		XCERB_SUBADDR			0x0D
#define		PCR_SUBADDR				0x0E


//定义MCBSP1各寄存器的初始值,即定义一见名知意的字符串,用来代替一16进制数,方便后锰初始化给寄存器赋值
#define		bsp_SPCR11				0x0021
#define		bsp_SPCR21				0x0201
#define		bsp_PCR1				0x000C
#define		bsp_RCR11				0x0040
#define		bsp_RCR21				0x0000
#define		bsp_XCR11				0x0040
#define		bsp_XCR21				0x0000
#define		bsp_SRGR11				0x0000
#define		bsp_SRGR21				0x0000
#define		bsp_MCR11				0x0000
#define		bsp_MCR21				0x0000



//定义CPU寄存器地址
#define		reg_ST1					0X0007
#define		ST0						*(volatile	unsigned int *)0x06
#define		ST0_ADDR				0x06

#define		PMST					0x001D
#define		SWWSR					0x0028
#define		SWCR					0x002B
#define		BSCR					0x0029
#define		CLKMD					0x0058

//定义CPU寄存器的初始值,用于后面程序对CPU寄存器赋值初始化
#define		PMST_VAL				0x00A0
#define		SWWSR_VAL				0x8FFF
#define		SWCR_VAL				0x0001
#define		BSCR_VAL				0x8802
#define		CLKMD_VAL				0x9FF7