readme.txt

TI 5402 dsp芯片读写cf卡的源程序

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* This is an example of how to access a Compact Flash Memory Card
* based on the application note titled, "Compact Flash Memory Card 
* Interface for the TMS320VC54x", TI Literature number SPRA803. 
**********************************************************************
* Files:    
*			.\src\cf_main.c
*			.\src\cf_routines.asm
*			.\inc\cf_io_space.inc
*			.\inc\cf_write_buffer.dat
*			cf_linker.cmd
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* The functions in the file cf_routines.asm, are written in 'C54x 
* assemble, but they are intended to be called from C code. The file
* cf_main.c shows how these functions can be used from C.
*
* The functions can also be used directly from assembly code as 
* long as the calling code follows the calling conventions. The 
* first (left most) must be placed in accumulator A, and the remaning
* arguments must be placed on the stack in reverse order. If a value 
* is returned, it is placed in in accumulator A. Here's an example 
* of calling one of these functions from assembly:
*	LD #0, A			;Put 1st arg in A
*	PSHM BL				;Push next arg on stack
*	LD #1, B			;Get next arg 
*	NOP
*	PSHM BL				;Push next arg on stack
*	CALL _CF_IssueCommand		;Call the function
*	POPM BL				;Pop arguments off stack
*	POPM BL				;Pop arguments off stack
* Refer to Chapter 6 of, "TMS320C54x Optimizing C/C++ Compiler
* User's Guide", TI Literature number SPRU103 for more information
* on this.
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