Texas Instruments TMS320F20x/F24x DSP Preliminary, Assembly Source Listings and Program Examples

PRELIMINARY

Using the Algorithms With C Code to Erase and Reprogram the 'F240

/************************Command Line Options**************************/

±cr	/*Use Ram init model.	*/
±heap 0x0	/*No heap needed for this example.	*/
±stack 0x96	/*150 word stack is enough for this example.	*/
±x	/*Force re±reading of libraries.	*/

±l c:\dsptools\fix\rts2xx.lib ±o sample24.out

±m sample24.map

/*****************************Input Files******************************/

sample24.obj	/*User C±code with calls to erase() and program() */
c240init.obj	/*C±callabe asm function to init '240 regs	*/
wdtoff.obj	/*C±callable asm function to disable the wdt	*/
flash.obj	/*C±callable interface to standard algorithms.	*/
algos\spgm20.obj	/*Standard Programming algorithms.	*/
algos\sclr20.obj	/*Standard Clear algorithm.	*/
algos\sera20.obj	/*Standard Erase algorithm.	*/
algos\sflw20.obj	/*Standard Flash±write algorithm.	*/
algos\sutils20.obj	/*Subroutines used by standard algorithms.	*/

/*****************************Memory Map*******************************/

MEMORY

{

PAGE 0: /* PM ± Program memory */

FLASH0: origin = 0x0000, length = 0x4000

EXTRAM: origin = 0x8000, length = 0x400 /*Use 1K of EXT SRAM for PROGRAM*/

B0: origin = 0xfe00, length = 0x100

PAGE 1: /* DM ± Data memory */
BLK_B2:		origin = 0x60, length = 0x20			/*BLOCK B2		*/
DSRAM:		origin = 0x8000, length = 0x4000			/*External data RAM */
B0DAT:		origin = 0x200, length = 0x100			/*B0 RAM		*/
					/*(Used for pgm data buffer)*/
B1:		origin = 0x300, length = 0x100			/* B1 RAM (Used for algo vars )*/
}
/*************************Section Allocation***************************/
SECTIONS
{
.text	:{} > EXTRAM PAGE 0			/* sample.c */
/*All these sections are for flash programming.*/
PRG_text		: {} > EXTRAM PAGE 0		/**erase() and program()*****/
				/*****from flash.asm file****/
fl_prg : {} > EXTRAM			PAGE 0	/**Programming Algorithm*****/
fl_clr : {} > EXTRAM			PAGE 0	/******Clear Algorithm*******/
fl_ers : {} > EXTRAM			PAGE 0	/******Erase Algorithm*******/
fl_wrt : {} > EXTRAM			PAGE 0	/****Flash±write Algorithm***/
DLY	: {} > EXTRAM		PAGE 0	/******Delay Subroutine******/
REG	: {} > EXTRAM		PAGE 0	/*******Regs Subroutine******/
ARY	: {} > EXTRAM		PAGE 0	/******Array Subroutine******/
PRG_data		: {} > B1	PAGE 1	/*Reserved in flash.asm for**/
				/***flash algo variables.****/
PRG_parm		: {} > B1	PAGE 1	/*Reserved in flash.asm for**/
				/*parameter passing to algos*/
/*End of sections for flash programming.						*/

PRELIMINARY Assembly Source Listings and Program Examples A-49