DM642 Study Notes (program notes)

Early November 2010 DM642 study notes

 

the use of Rite-Hite Innovative Experimental Box (ICETEK-DM642-IDK-M), mainly in the video processing part of the program notes and study questions ideas and some immature ideas ~ ~

experimental 5.6-5.19 video driver application

notes for the DM642 video driver:

/*

* Copyright 2003 by Texas Instruments Incorporated.

* All rights reserved. property of Texas Instruments Incorporated.

* Restricted rights to use, duplicate or disclose this code is

* Granted through contract.

*

*/

/* "@ (#) DDK 1.10.00.23 07-02-03 (DDK-B12)" */

#include <std.h>//If you use C language, this file must be used as the first header file

#include <tsk.h>

#include <sem.h>

#include <gio.h>

#include <csl_dat.h>

#include <csl_cache.h>//use the CSL Library, to use some of the header files, you can refer to the CSL

#include <fvid.h>//video driver header file

#include <edc.h>

#include <vport.h>

#include <vportcap.h>

#include <vportdis.h>

#include <saa7105.h>

#include <saa7115.h>

#include <evmdm642.h>//chip header file

#include "colorbar.h"//If the color scroll bar is displayed, this header file is required;

#include "Evmdm642_vcapparams.h"

#include "Evmdm642_vdisparams.h"

/* heap IDs defined in the BIOS configuration file */

extern Int externalheap;//?? Dsp/bios????? ¨??

/*

* ======== Main ========

*/

Main ()

{

/******************************************************/

/* Open CSL DAT module for fast copy */

/******************************************************/

Csl_init (); To call a function in any CSL library, you must first call the function here

Cache_clean (cache_l2all, 0, 0); Clean cache mode

Cache_setl2mode (Cache_256kcache); Setting the cache mode

Cache_enablecaching (cache_emifa_ce00); Enable Emifa CE0 Space

Cache_enablecaching (CACHE_EMIFA_CE01); Enable Emifa CE1 Space

Dat_open (Dat_chaany, Dat_pri_low, dat_open_2d); Open Data transfer

}

/*

* ======== Tskvideoloopback ========

* Video loopback function.

*/

void Tskvideoloopback ()

{

Int i;

int m_nwork;

INT status;

Fvid_handle Dischan; Set device handle

Int frames = 0;

Fvid_frame *disframebuf;

Int Numlinesdis = evmdm642_vdisparamschan.imgvsizefld1;

Sets the number of lines displayed, VGA is 480,pal to 576

Int numlinescap =EVMDM642_VCAPPARAMSCHAN.FLDYSTOP1-//Set number of acquisition rows

evmdm642_vcapparamschan.fldystrt1+1;

/* Determine whether the display area is large, or the collection area is large, take its small person */

Int numlines = (Numlinesdis > Numlinescap)? Numlinescap:numlinesdis;

#ifdef _loopback

Fvid_handle Capchan;

/* Set the number of pixels to display per line, pal to 720*/

Int numpixels = Evmdm642_vcapparamschan.fldxstop1-

evmdm642_vcapparamschan.fldxstrt1+1;

Fvid_frame *capframebuf;

/* Set the total pixels of the captured image line */

Int Caplinepitch = Evmdm642_vcapparamschan.fldxstop1-

evmdm642_vcapparamschan.fldxstrt1+1;

/* Set the total pixels to display the image line */

Int dislinepitch = evmdm642_vdisparamschan.imghsizefld1;

#ifdef _PIP

Vportcap_params evmdm642_vcapparamschan2 = Evmdm642_vcapparamschan;

Fvid_handle capChan2;

Fvid_frame *capframebuf2;