WebSVN - shark - Rev 1197 - /demos/trunk/oscilloscopio/osc.c

/*****************************************************************************
* Filename: osc.c *
* Author: Ghiro Andrea,Franchino Gianluca *
* Date: 09/2003 *
* Description: Oscilloscope and function generator for PCI6025E *
*----------------------------------------------------------------------------*
* Notes: Connect DAC output pin (21) to ADC input pins (3-18) and *
* watch the waveforms. *
*****************************************************************************/

/* This file is part of the S.Ha.R.K. Project - http://shark.sssup.it
*
* Copyright (C) 2003 Ghiro Andrea,Franchino Gianluca
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/

#include <drivers/glib.h>
#include <drivers/keyb.h>
#include <math.h>
#include <drivers/pci6025e/dac.h>
#include <modules/hartport.h>
#include <modules/srp.h>
#include "adc.h"

#define MAX_VAL 500
#define NUM_POINT 20
#define GRAPH_PERIOD 50000
#define GRAPH_WCET 2000
#define WAVE_WCET 200
#define OSC_WCET 200
#define TASK_GROUP 1
#define CHFREQ_PERIOD 5000
#define CHFREQ_WCET 200

void drawInterface(void);
void endfun(KEY_EVT *);
void close_event(void *);
void createWaves(void);
void change_disp(KEY_EVT *);
void change_mode(KEY_EVT *);
void change_wave(KEY_EVT *);
void change_passo(KEY_EVT *);
void change_channel(KEY_EVT *);
void inc(KEY_EVT *);
void dec(KEY_EVT *);

TASK video_body(int);
TASK wave_body(int);
TASK osc_body(int);
TASK chfreq_body(int);

HARD_TASK_MODEL wave0;
HARD_TASK_MODEL chfreq;
HARD_TASK_MODEL osc;
SRP_RES_MODEL r;
SRP_mutexattr_t a;

PID wave0_pid;
PID chfreq_pid;
PID osc_pid;

mutex_t m1 ;

int black = rgb16(0,0,0),
white = rgb16(255, 255, 255);

int wave = 3,
varfun = 0,
varosc = 0,
flagch = 0,
channel = 0;

float vfun = 0,
vosc = 2.5,
ffun = 1,
tbase = 75,
yr[MAX_VAL],
yrdac[NUM_POINT],
ys[MAX_VAL],
ysdac[NUM_POINT],
yq[MAX_VAL],
yqdac[NUM_POINT];

BYTE disp = 0,
modefun= 0,
modeosc= 0,
lib = 0,
sys = 0;

short yoscold[MAX_VAL];

unsigned int period= 1e6/NUM_POINT;
unsigned int oscperiod = 1500;

int main(int argc, char **argv)
{
KEY_EVT k;

HARD_TASK_MODEL video;
PID video_pid;

int modenum;

k.flag = CNTR_BIT;
k.scan = KEY_X;
k.ascii = 'x';
keyb_hook(k, endfun);

k.flag = CNTL_BIT;
keyb_hook(k, endfun);

k.flag = 0;
k.scan = KEY_A;
k.ascii = 'a';
keyb_hook(k, change_disp);

k.flag = 0;
k.scan = KEY_S;
k.ascii = 's';
keyb_hook(k, change_mode);

k.flag = 0;
k.scan = KEY_F;
k.ascii = 'f';
keyb_hook(k, change_wave);

k.flag = 0;
k.scan = KEY_G;
k.ascii = 'g';
keyb_hook(k, change_wave);

k.flag = 0;
k.scan = KEY_H;
k.ascii = 'H';
keyb_hook(k, change_wave);

k.flag = 0;
k.scan = KEY_D;
k.ascii = 'd';
keyb_hook(k, change_passo);

k.flag = 0;
k.scan = KEY_J;
k.ascii = 'j';
keyb_hook(k, change_channel);

k.flag = 0;
k.scan = 78;
k.ascii = 43;
keyb_hook(k, inc);

k.flag = 0;
k.scan = 74;
k.ascii = 45;
keyb_hook(k, dec);

sys_atrunlevel(close_event, NULL, RUNLEVEL_BEFORE_EXIT);

/*initialize the srp mutex*/
SRP_mutexattr_default(a);
mutex_init(&m1,&a);

hard_task_default_model(wave0);
hard_task_def_wcet(wave0, WAVE_WCET);
hard_task_def_mit(wave0, period);
hard_task_def_group(wave0, TASK_GROUP);
if( (wave0_pid = task_create("Wave 0", wave_body, &wave0, NULL)) == NIL )
{
sys = 10;
sys_end();
}

hard_task_default_model(video);
hard_task_def_wcet(video, GRAPH_WCET);
hard_task_def_mit(video, GRAPH_PERIOD);
hard_task_def_group(video, TASK_GROUP);
SRP_res_default_model(r,2);
if( (video_pid = task_createn("Video task", video_body, &video, &r,
SRP_usemutex(&m1), NULL))== NIL )
{
sys = 12;
sys_end();
}

hard_task_default_model(osc);
hard_task_def_wcet(osc, OSC_WCET);
hard_task_def_mit(osc, oscperiod);
hard_task_def_group(osc, TASK_GROUP);
SRP_res_default_model(r,1);
if((osc_pid = task_createn("osc task", osc_body, &osc, &r,
SRP_usemutex(&m1), NULL))== NIL )
{
sys = 11;
sys_end();
}

hard_task_default_model(chfreq);
hard_task_def_wcet(chfreq, CHFREQ_WCET);
hard_task_def_mit(chfreq, CHFREQ_PERIOD);
hard_task_def_group(chfreq, TASK_GROUP);
if( (chfreq_pid = task_create("chfreq", chfreq_body, &chfreq, NULL)) == NIL )
{
sys = 13;
sys_end();
}

if(grx_init() == -1)
{
sys = 30;
sys_end();
}

if((modenum = grx_getmode(800, 600, 16)) == -1)
{
sys = 31;
sys_end();
}

if(pci_init() == -1)
{
sys = 20;
sys_end();
}

if(!reMap())
{
sys = 21;
sys_end();
}

grx_setmode(modenum);

createWaves();
drawInterface();

DAC_Init(); //Program the DAQ-STC AOTM
Configure_Board(channel); //Configure the board with the channel settings.
ADC_Init(); //Program the DAQ-STC AITM

group_activate(TASK_GROUP);

return 0;
}

void endfun(KEY_EVT *k)
{
sys_end();
}

void close_event(void *arg)
{
grx_close();
switch(sys)
{
case 0: cprintf("Regular End!\n"); break;
case 10: cprintf("Cannot create <wave 0> task!\n"); break;
case 11: cprintf("Cannot create <osc> task!\n"); break;
case 12: cprintf("Cannot create <video> task!\n"); break;
case 13: cprintf("Cannot create <chfreq> task!\n"); break;
case 14: cprintf("Cannot kill <wave 0> task!\n"); break;
case 15: cprintf("Cannot kill <osc> task\n");break;
case 20: cprintf("No PCI bus found!\n"); break;
case 21: cprintf("No NATIONAL PCI E-Series board found on PCI bus!\n");break;
case 30: cprintf("Cannot start graphic envirorment!\n"); break;
case 31: cprintf("800x600x16 video mode not supported!\n");break;
default: cprintf("Unknown exit event!\n"); break;
}
}

/*
* kill wave0 or osc when frequency change
*/

TASK chfreq_body(int w)
{
PORT p;
char msg[1];
p = port_create("activation",1,1,STREAM,WRITE);

while(1)
{
if(flagch == 1)
{
if(task_kill(wave0_pid)!=0)
{
sys=14;
sys_end();
}
hard_task_def_mit(wave0, period);
if( (wave0_pid = task_create("wave 0", wave_body, &wave0, NULL))== NIL )
{
sys = 10;
sys_end();
}
flagch = 0;
task_activate(wave0_pid);
}

if(flagch == 2)
{
if(task_kill(osc_pid)!=0)
{
sys=15;
sys_end();
}
hard_task_def_mit(osc, oscperiod);
if( (osc_pid = task_createn("osc", osc_body, &osc, &r,
SRP_usemutex(&m1), NULL))== NIL )
{
sys = 11;
sys_end();
}
flagch = 0;
msg[0]=1;
port_send(p,msg,NON_BLOCK);
}
task_endcycle();
}
}

/*
* acquisition of input samples
*/

TASK osc_body(int wv)
{
int i = 0 ;
short y = 0;
WORD Status = 0;

while(1)
{
mutex_lock(&m1);
if(lib)
{
mutex_unlock(&m1);
AI_Start_The_Acquisition();
do {
Status = DAQ_STC_Windowed_Mode_Read(AI_STATUS_1);
if (!( (Status & 0x1000) == 0x1000 ) )
y = Immediate_Readw(ADC_DATA_READ);
} while(((Status & 0x1000) == 0x1000));
y = (2.5/vosc)*(y-40)/20;
if(abs(y)<=100)
{
grx_plot(19+i,483-y,rgb16(255,255,0));
}
yoscold[i]=y;
i=(i+1)%500;
if(i==0)
{
mutex_lock(&m1);
lib=0;
mutex_unlock(&m1);
task_testcancel();
}
}
else mutex_unlock(&m1);
task_endcycle();
}
}

/*
* Sends out waves' samples
*/

TASK wave_body(int wv)
{
int i = 0;
int y = 0;
while(1)
{
if(wave==0)
{
y=vfun*(yrdac[i]*20);
y=(y & 0x0FFF);
}
if(wave==1)
{
y=vfun*(ysdac[i]*20);
y=(y & 0x0FFF);
}
if(wave==2)
{
y=vfun*(yqdac[i]*20);
y=(y & 0x0FFF);
}
DAC_output(DAC1,y);
i = (i + 1) % NUM_POINT;
task_testcancel();
task_endcycle();
}
}

/*
* Shows setting,wave,grid and clear display
*/

TASK video_body(int dummy)
{
BYTE dispold = 1,
modefunold = 1,
modeoscold = 1,
new = 0;

int waveold = 3,
varfunold = 2,
i = 0,
y = 0,
channelold = 16,
yold[MAX_VAL];

float vfunold = 1,
voscold = 1,
ffunold = 0,
tbaseold = 1;

char st[20];

PORT p;
char msg[1];
p=port_connect("activation",1,STREAM,READ);

while(1)
{
mutex_lock(&m1);
if(!lib)
{
mutex_unlock(&m1);
for(i=0;i<MAX_VAL;i++)
{
if(abs(yoscold[i])<=100)
{
grx_plot(19+i,483-yoscold[i],rgb16(0,0,0));
}
}
//OSCILLOSCOPE GRID
grx_line(19, 385, 519, 385, rgb16(150,150,150));
grx_line(19, 410, 519, 410, rgb16(150,150,150));
grx_line(19, 435, 519, 435, rgb16(150,150,150));
grx_line(19, 460, 519, 460, rgb16(150,150,150));
grx_line(19, 485, 519, 485, rgb16(150,150,150));
grx_line(19, 510, 519, 510, rgb16(150,150,150));
grx_line(19, 535, 519, 535, rgb16(150,150,150));
grx_line(19, 560, 519, 560, rgb16(150,150,150));
grx_line(19, 585, 519, 585, rgb16(150,150,150));
grx_line(19, 385, 19, 585, rgb16(150,150,150));
grx_line(69, 385, 69, 585, rgb16(150,150,150));
grx_line(119, 385, 119, 585, rgb16(150,150,150));
grx_line(169, 385, 169, 585, rgb16(150,150,150));
grx_line(219, 385, 219, 585, rgb16(150,150,150));
grx_line(269, 385, 269, 585, rgb16(150,150,150));
grx_line(319, 385, 319, 585, rgb16(150,150,150));
grx_line(369, 385, 369, 585, rgb16(150,150,150));
grx_line(419, 385, 419, 585, rgb16(150,150,150));
grx_line(469, 385, 469, 585, rgb16(150,150,150));
grx_line(519, 385, 519, 585, rgb16(150,150,150));
mutex_lock(&m1);
lib=1;
mutex_unlock(&m1);
port_receive(p,msg,NON_BLOCK);
if(msg[0]==1)
{
task_activate(osc_pid);
}
}
else mutex_unlock(&m1);
if(disp != dispold)
{
dispold = disp;
grx_disc(780,120,10,rgb16(255*(1-disp),0,0));
grx_disc(780,390,10,rgb16(0,255*disp,0));
}

if(modefun != modefunold)
{
modefunold = modefun;
grx_disc(780,237,5,rgb16(255*(1-modefun),0,0));
grx_disc(780,267,5,rgb16(255*(modefun),0,0));
}

if(modeosc != modeoscold)
{
modeoscold = modeosc;
grx_disc(780,502,5,rgb16(0,255*(1-modeosc),0));
grx_disc(780,532,5,rgb16(0,255*(modeosc),0));
}

if(wave != waveold)
{
waveold = wave;
grx_disc(730,127,3,rgb16(127*(1-wave)*(2-wave),0,0));
grx_disc(730,142,3,rgb16(254*wave*(2-wave),0,0));
grx_disc(730,157,3,rgb16(254*wave*(wave-1),0,0));
new=1;
}

if(varfun != varfunold)
{
varfunold = varfun;
grx_disc(675,292,3,rgb16(42*(1-varfun)*(2-varfun)*(3-varfun),0,0));
grx_disc(775,292,3,rgb16(126*varfun*(2-varfun)*(3-varfun),0,0));
grx_disc(675,307,3,rgb16(252*varfun*(varfun-1)*(3-varfun),0,0));
grx_disc(775,307,3,rgb16(42*varfun*(varfun-1)*(varfun-2),0,0));
}

if(channel != channelold)
{
sprintf(st,"%2d",channel);
grx_text(" ",660,470,black,white);
grx_text(st,660,470,black,white);
}

if(ffun != ffunold)
{
ffunold = ffun;
sprintf(st,"%10f",ffun);
grx_text(" ",660,265,black,white);
grx_text(st,660,265,black,white);
}

if(tbase != tbaseold)
{
tbaseold = tbase;
sprintf(st,"%10f",tbase);
grx_text(" ",660,530,black,white);
grx_text(st,660,530,black,white);
}

if(vfun != vfunold)
{
vfunold = vfun;
sprintf(st,"%3.1f",vfun);
grx_text(" ",660,235,black,white);
grx_text(st,660,235,black,white);
new=1;
}

if(vosc != voscold)
{
voscold = vosc;
sprintf(st,"%3.1f",vosc);
grx_text(" ",660,500,black,white);
grx_text(st,660,500,black,white);
}

if(new)
{
for(i=0; i<MAX_VAL; i++)
{
grx_plot(19+i, 215-yold[i],rgb16(0, 0, 0));
}

//FUNCTION GENERATOR GRID
grx_line(22, 115, 525, 115, rgb16(150,150,150));
grx_line(22, 165, 525, 165, rgb16(150,150,150));
grx_line(22, 265, 525, 265, rgb16(150,150,150));
grx_line(22, 315, 525, 315, rgb16(150,150,150));
grx_line(19, 110, 19, 320, rgb16(150,150,150));
grx_line(14, 215, 525, 215, rgb16(150,150,150));

if(wave==0)
{
for(i=0;i<MAX_VAL;i++)
{
y=(vfun)*yr[i];
grx_plot(19+i,215-y,rgb16(255,255,0));
yold[i]=y;
}
}

if(wave==1)
{
for(i=0;i<MAX_VAL;i++)
{
y=(vfun)*ys[i];
grx_plot(19+i,215-y,rgb16(255,255,0));
yold[i]=y;
}
}

if(wave==2)
{
for(i=0;i<MAX_VAL;i++)
{
y=(vfun)*yq[i];
grx_plot(19+i,215-y,rgb16(255,255,0));
yold[i]=y;
}
}

new=0;
}
task_endcycle();
}
}

/*
* create wave triangular,sinusoidal and square
*/

void createWaves(void)
{
float u=0,
qdac= 2*PI/NUM_POINT,
q = 2*PI/(MAX_VAL/2);

register int i;

BYTE direction=0;
/*create the vectors for the video task*/
for(i=0;i<MAX_VAL/2;i++)
{
yr[i]=yr[i+MAX_VAL/2]=u/10;
if(!direction) u += 1.613;
else u -= 1.613;
if(u >= 100) direction = 1;
if(u <= -101) direction = 0;

ys[i]=ys[i+MAX_VAL/2] = (sin(i*q)*10);

if((i>=(MAX_VAL/4) && i< (MAX_VAL/2))) yq[i]=yq[i+MAX_VAL/2]=0;
else yq[i]=yq[i+MAX_VAL/2]=10;
}
/*create the vectors for the wave_body task*/
direction=0;
u = 0;
for(i=0;i<NUM_POINT;i++)
{
yrdac[i]=u/10;
if(!direction) u += (400/NUM_POINT);
else u -= (400/NUM_POINT);
if(u >= 100) direction = 1;
if(u <= -100) direction = 0;

ysdac[i]=(sin(i*qdac)*10);

if((i>=(NUM_POINT/2) && i<NUM_POINT)) yqdac[i]=0;
else yqdac[i]=10;
}
}

/*
* select device (0 function generator,1 oscilloscope)
*/

void change_disp(KEY_EVT *k)
{
if(disp) disp = 0;
else disp = 1;
}

/*
* select volt or frequency
*/

void change_mode(KEY_EVT *k)
{
if(disp && modeosc) modeosc = 0;
else
if(disp && !modeosc) modeosc = 1;
else
if(!disp && modefun) modefun = 0;
else
if(!disp && !modefun) modefun =1;
}

/*
* select wave (0 triangular,1 sinusoindal,2 square
*/

void change_wave(KEY_EVT *k)
{
if(!disp && k->ascii =='f')
{
wave=0;
}
else
if(!disp && k->ascii =='g')
{
wave=1;
}
else
if(!disp && k->ascii =='h')
{
wave=2;
}
}

/*
* select increase or decrease step
*/

void change_passo(KEY_EVT *k)
{
if(!disp && modefun)
{
varfun=(varfun+1)%2;
}
}

/*
* select input channel
*/

void change_channel(KEY_EVT *k)
{
if(disp)
{
channel=(channel+1)%16;
Configure_Board(channel);
}
}

/*
* increase selected variable
*/

void inc(KEY_EVT *k)
{
if(disp && modeosc && tbase<300)
{
flagch=2;
switch(varosc)
{
case(0): tbase = tbase*2;
oscperiod=(tbase/50)*1000;
break;
}
}
else
if(disp && !modeosc && vosc<10) vosc += 0.1;
else
if(!disp && modefun && ffun<(1e6/(1020*NUM_POINT))-1)
{
flagch=1;
switch(varfun)
{
case(0): ffun += 1;
period = 1e6/(NUM_POINT*ffun);
break;
case(1): ffun += 10;
period = 1e6/(NUM_POINT*ffun);
break;
}
}
else
if(!disp && !modefun && vfun<10) vfun += 0.1;
}

/*
* decrease selected variable
*/

void dec(KEY_EVT *k)
{
if(disp && modeosc && tbase> 75)
{
flagch=2;
switch(varosc)
{
case(0): tbase = tbase/2;
oscperiod=(tbase/50)*1000;
break;
}
}
else
if(disp && !modeosc && vosc> 0.2) vosc -= 0.1;
else
if(!disp && modefun && ffun> 0)
{
flagch = 1;
switch(varfun)
{
case(0): ffun -= 1;
if(ffun == 0) period =1e6;
else
period = 1e6/(NUM_POINT*ffun);
break;
case(1): ffun -= 10;
if(ffun == 0) period =1e6;
else
period = 1e6/(NUM_POINT*ffun);
break;
}
}
else
if(!disp && !modefun && vfun> -10) vfun -= 0.1;
}

/*
* draw interface
*/

void drawInterface(void)
{
//TITLE
grx_rect(1, 1, 799, 69, rgb16(105, 0, 105));
grx_rect(2, 2, 798, 68, rgb16(155, 0, 155));
grx_rect(3, 3, 797, 67, rgb16(205, 0, 205));
grx_rect(4, 4, 796, 66, rgb16(255, 0, 255));
grx_text("Oscilloscope and function generator for PCI6025E",7, 10, rgb16(50, 255, 50), black);
grx_text("Pin ADC 3-18, DAC 21",7, 25, rgb16(0, 255, 255), black);
grx_text("A for select Oscilloscope or Function generator",7, 40, rgb16(0, 255, 255), black);
grx_text("CTRL-X for Exit", 7, 55, rgb16(200, 200, 0), black);

//FUNCTION GENERATOR
grx_text("FUNCTION GENERATOR", 100, 92, rgb16(200, 200, 0), black);
grx_rect(1, 100, 549, 325, rgb16(0, 105, 0));
grx_rect(2, 101, 548, 324, rgb16(0, 155, 0));
grx_rect(3, 102, 547, 323, rgb16(0, 205, 0));
grx_rect(4, 103, 546, 322, rgb16(0, 255, 0));
grx_rect(579, 100, 799, 325, rgb16(0, 105, 0));
grx_rect(580, 101, 798, 324, rgb16(0, 155, 0));
grx_rect(581, 102, 797, 323, rgb16(0, 205, 0));
grx_rect(582, 103, 796, 322, rgb16(0, 255, 0));
grx_text("Wave selection",589,110,rgb16(0, 255, 0), black);
grx_text("f -->triangular",589,125,rgb16(200, 200, 0), black);
grx_text("g -->sin",589,140,rgb16(200, 200, 0), black);
grx_text("h -->square",589,155,rgb16(200, 200, 0), black);
grx_text("s -->select volt/freq",589,180,rgb16(200, 200, 0), black);
grx_text("+/- -->set volt/freq",589,195,rgb16(200, 200, 0), black);
grx_text("d -->frequency increase",589,210,rgb16(200, 200, 0),black);
grx_text("Vpicco V",589,235,rgb16(0, 255, 0),black);
grx_text("Freq Hz",589,265,rgb16(0, 255, 0),black);
grx_text("+/- 1 Hz",589,290,rgb16(0, 255, 0),black);
grx_text("+/- 10 HZ",689,290,rgb16(0, 255, 0),black);

//OSCILLOSCOPE
grx_text("OSCILLOSCOPE", 100, 362, rgb16(200, 200, 0), black);
grx_rect(1, 370, 549, 595, rgb16(105, 0, 0));
grx_rect(2, 371, 548, 594, rgb16(155, 0, 0));
grx_rect(3, 372, 547, 593, rgb16(205, 0, 0));
grx_rect(4, 373, 546, 592, rgb16(255, 0, 0));
grx_rect(579, 370, 799, 595, rgb16(105, 0, 0));
grx_rect(580, 371, 798, 594, rgb16(155, 0, 0));
grx_rect(581, 372, 797, 593, rgb16(205, 0, 0));
grx_rect(582, 373, 796, 592, rgb16(255, 0, 0));
grx_text("Scale selection",589,380,rgb16(255, 0, 0), black);
grx_text("s -->select volt/freq",589,400,rgb16(200, 200, 0), black);
grx_text("+/- -->set volt/freq",589,415,rgb16(200, 200, 0), black);
grx_text("j -->change channel",589,430,rgb16(200, 200, 0),black);
grx_text("Channel",589,470,rgb16(255, 0, 0),black);
grx_text("Volt/div V",589,500,rgb16(255, 0, 0),black);
grx_text("Time/div ms",589,530,rgb16(255, 0, 0),black);

//LABEL
grx_text("0 V", 555, 211, rgb16(0, 255, 0), black);
grx_text("+10", 555, 111, rgb16(0, 255, 0), black);
grx_text("+5", 555, 161, rgb16(0, 255, 0), black);
grx_text("-5", 555, 261, rgb16(0, 255, 0), black);
grx_text("-10", 555, 311, rgb16(0, 255 , 0), black);
grx_text("0 V", 555, 481, rgb16(255, 0, 0), black);
}

Subversion Repositories shark

(root)/demos/trunk/oscilloscopio/osc.c @ 1247 - Rev 1197