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mirror of git://projects.qi-hardware.com/antorcha.git synced 2024-11-01 11:28:26 +02:00

Merge branch 'detached'

Had a detached head for several hours :-(

Conflicts:
	doc/PROTOCOL
	fw/sample.c
This commit is contained in:
Werner Almesberger 2012-06-21 21:20:05 -03:00
commit 420370ee9c
9 changed files with 299 additions and 24 deletions

View File

@ -70,4 +70,4 @@ Where each sample is
4 2 Absolute time of Y sample, lower 16 bits 4 2 Absolute time of Y sample, lower 16 bits
6 2 Y sample (0-1023) 6 2 Y sample (0-1023)
Byte order TBD. (Defined by avr-gcc) Byte order is little-endian.

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@ -38,11 +38,15 @@ static inline void admux(bool x)
static inline void adcsra(bool start) static inline void adcsra(bool start)
{ {
/*
* The ADC needs to run at clkADC <= 200 kHz for full resolution.
* At clkADC = 125 kHz, a conversion takes about 110 us.
*/
ADCSRA = ADCSRA =
1 << ADEN | /* enable ADC */ 1 << ADEN | /* enable ADC */
(start ? 1 << ADSC : 0) | (start ? 1 << ADSC : 0) |
1 << ADIE | /* enable ADC interrupts */ 1 << ADIE | /* enable ADC interrupts */
7; /* clkADC = clk/128 -> 62.5 kHz */ 6; /* clkADC = clk/64 -> 126 kHz */
} }
@ -54,8 +58,18 @@ ISR(ADC_vect)
if (sample) if (sample)
sample(chan_x, v); sample(chan_x, v);
chan_x = !chan_x; if (chan_x) {
admux(chan_x); chan_x = 0;
admux(0);
adcsra(1);
}
}
ISR(TIMER0_OVF_vect)
{
chan_x = 1;
admux(1);
adcsra(1); adcsra(1);
} }
@ -63,6 +77,15 @@ ISR(ADC_vect)
void accel_start(void) void accel_start(void)
{ {
adcsra(0); adcsra(0);
admux(1);
chan_x = 1; TCNT0 = 0;
OCR0A = 125; /* 8 MHz/64/125 = 1 kHz */
TCCR0A =
1 << WGM01 | /* WG Mode 7 (Fast PWM to OCR0A) */
1 << WGM00;
TCCR0B =
1 << WGM02 | /* WG Mode 7, continued */
1 << CS01 | /* clkIO/64 */
1 << CS00;
TIMSK0 = 1 << TOIE0; /* interrupt on overflow */
} }

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@ -23,31 +23,37 @@
#include "proto.h" #include "proto.h"
#include "dispatch.h" #include "dispatch.h"
#include "io.h"
#define MAX_PACKET 120 /* <- MAX_PSDU -3 (hdr) -2 (CRC) */ /* @@@ keep it small for now - we're running out of RAM :-( */
//#define MAX_PACKET 120 /* <- MAX_PSDU -3 (hdr) -2 (CRC) */
#define MAX_PACKET 50 /* <- MAX_PSDU -3 (hdr) -2 (CRC) */
static uint8_t buf[MAX_PACKET+3] = { SAMPLES, 0, 0 }; static uint8_t buf[MAX_PACKET+3] = { SAMPLES, 0, 0 };
static uint16_t *p; static uint16_t *p;
static bool expect_x;
static void handler(bool x, uint16_t v) static void handler(bool x, uint16_t v)
{ {
bool first;
uint32_t t; uint32_t t;
first = p == (uint16_t *) (buf+3); if (x != expect_x)
if (first && !x)
return; return;
t = uptime(); t = uptime_irq();
if (first) if (p == (uint16_t *) (buf+3))
*p++ = t >> 16; *p++ = t >> 16;
*p++ = t; *p++ = t;
*p++ = v; *p++ = v;
expect_x = !expect_x;
if (x) if (x)
return; return;
if ((uint8_t *) (p+4) <= buf+MAX_PACKET) if ((uint8_t *) (p+4) <= buf+MAX_PACKET)
return; return;
rf_send(buf, (uint8_t *) p-buf); rf_send(buf, (uint8_t *) p-buf);
buf[1]++;
p = (uint16_t *) (buf+3); p = (uint16_t *) (buf+3);
} }
@ -59,6 +65,7 @@ static bool sample_first(uint8_t limit, const uint8_t *payload)
cli(); cli();
sample = handler; sample = handler;
p = (uint16_t *) (buf+3); p = (uint16_t *) (buf+3);
expect_x = 1;
sei(); sei();
} else { } else {
cli(); cli();

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@ -84,6 +84,17 @@ ISR(TIMER1_OVF_vect)
} }
uint32_t uptime_irq(void)
{
uint32_t t;
t = t_up+TCNT1;
if (TIFR1 & TOV1)
t += ICR1;
return t;
}
uint32_t uptime(void) uint32_t uptime(void)
{ {
uint32_t a, b; uint32_t a, b;
@ -92,7 +103,8 @@ uint32_t uptime(void)
do { do {
cli(); cli();
a = t_up; a = t_up;
d = ICR1; d = TCNT1;
cli();
b = t_up; b = t_up;
sei(); sei();
} }

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@ -29,7 +29,9 @@ struct sweep {
extern volatile bool sweeping; extern volatile bool sweeping;
uint32_t uptime_irq(void);
uint32_t uptime(void); uint32_t uptime(void);
void sweep_image(const struct sweep *sweep); void sweep_image(const struct sweep *sweep);
void sweep_init(void); void sweep_init(void);

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@ -15,12 +15,14 @@ MAIN = antorcha
CFLAGS = -g -I../fw -I../../ben-wpan/tools/include \ CFLAGS = -g -I../fw -I../../ben-wpan/tools/include \
-I../../ben-wpan/atusb/fw/include \ -I../../ben-wpan/atusb/fw/include \
-Wall -Wall \
LDLIBS = -L../../ben-wpan/tools/lib -latrf -lusb $(shell sdl-config --cflags)
LDLIBS = -L../../ben-wpan/tools/lib -latrf -lusb \
$(shell sdl-config --libs) -lSDL_gfx
OBJS = antorcha.o hash.o OBJS = antorcha.o hash.o plot.o
.PHONY: all update ping .PHONY: all update ping off
all: $(MAIN) all: $(MAIN)
@ -32,3 +34,6 @@ update:
ping: ping:
./antorcha -P ./antorcha -P
off:
./antorcha /dev/null

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@ -22,9 +22,11 @@
#include <atrf.h> #include <atrf.h>
#include <misctxrx.h> #include <misctxrx.h>
#include <hash.h>
#include <proto.h> #include <proto.h>
#include "hash.h"
#include "plot.h"
static int verbose = 1; static int verbose = 1;
static int debug = 0; static int debug = 0;
@ -275,6 +277,74 @@ static void image(struct atrf_dsc *dsc, const char *name)
} }
/* ----- Samples ----------------------------------------------------------- */
static void samples(struct atrf_dsc *dsc)
{
uint8_t buf[MAX_PSDU] = { 0, };
int got;
uint8_t *s;
uint16_t t_high, t_low, last;
int x, y;
buf[0] = 1;
packet(dsc, SAMPLE, 0, 0, buf, PAYLOAD);
plot_init();
while (1) {
got = rf_recv(dsc, buf, sizeof(buf));
if (got <= 3)
continue;
if (buf[0] != SAMPLES)
continue;
if (debug > 1) {
int i;
for (i = 0; i != got; i++)
fprintf(stderr, " %02x", buf[i]);
fprintf(stderr, "\n");
}
if (debug)
fprintf(stderr, "%d:", got);
s = buf+3;
t_high = *s++;
t_high |= *s++ << 8;
last = 0;
while (s < buf+got-2) {
t_low = *s++;
t_low |= *s++ << 8;
if (t_low < last)
t_high++;
last = t_low;
x = *s++;
x |= *s++ << 8;
if (debug)
fprintf(stderr, "\t%11.6f %d",
(t_high << 16 | t_low)/1000000.0, x);
t_low = *s++;
t_low |= *s++ << 8;
if (t_low < last)
t_high++;
last = t_low;
y = *s++;
y |= *s++ << 8;
if (debug)
fprintf(stderr, "\t%11.6f %d\n",
(t_high << 16 | t_low)/1000000.0, y);
if (!plot(x, y))
goto quit;
}
}
quit:
buf[0] = 0;
packet(dsc, SAMPLE, 0, 0, buf, PAYLOAD);
}
/* ----- Command-line processing ------------------------------------------- */ /* ----- Command-line processing ------------------------------------------- */
@ -284,7 +354,8 @@ static void usage(const char *name)
"usage: %s [-d] image_file\n" "usage: %s [-d] image_file\n"
"%6s %s [-d] -F firmware_file\n" "%6s %s [-d] -F firmware_file\n"
"%6s %s [-d] -P\n" "%6s %s [-d] -P\n"
, name, "", name, "", name); "%6s %s [-d] -S\n"
, name, "", name, "", name, "", name);
exit(1); exit(1);
} }
@ -292,14 +363,14 @@ static void usage(const char *name)
int main(int argc, char **argv) int main(int argc, char **argv)
{ {
const char *fw = NULL; const char *fw = NULL;
int do_ping = 0; int do_ping = 0, do_sample = 0;
struct atrf_dsc *dsc; struct atrf_dsc *dsc;
int c; int c;
while ((c = getopt(argc, argv, "dF:P")) != EOF) while ((c = getopt(argc, argv, "dF:PS")) != EOF)
switch (c) { switch (c) {
case 'd': case 'd':
debug = 1; debug++;
break; break;
case 'F': case 'F':
fw = optarg; fw = optarg;
@ -307,13 +378,16 @@ int main(int argc, char **argv)
case 'P': case 'P':
do_ping = 1; do_ping = 1;
break; break;
case 'S':
do_sample = 1;
break;
default: default:
usage(*argv); usage(*argv);
} }
if (do_ping && fw) if (do_ping+do_sample+!!fw > 1)
usage(*argv); usage(*argv);
if (do_ping || fw) { if (do_ping || do_sample || fw) {
if (argc != optind) if (argc != optind)
usage(*argv); usage(*argv);
} else { } else {
@ -328,6 +402,8 @@ int main(int argc, char **argv)
rf_init(dsc, 8, 15); rf_init(dsc, 8, 15);
if (do_ping) if (do_ping)
ping(dsc); ping(dsc);
else if (do_sample)
samples(dsc);
else if (fw) else if (fw)
firmware(dsc, fw); firmware(dsc, fw);
else else

130
tools/plot.c Normal file
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@ -0,0 +1,130 @@
/*
* tools/plot.c - Sample plot
*
* Written 2012 by Werner Almesberger
* Copyright 2012 Werner Almesberger
*
* 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.
*/
#include <stdlib.h>
#include "SDL.h"
#include "SDL_gfxPrimitives.h"
#include "plot.h"
#define XRES 1024
#define YRES 1024
#define RADIUS 3
#define OLD_RGBA 0xffffff20
#define NEW_RGBA 0xffffffff
static SDL_Surface *surf;
static int first = 1;
static int last_x, last_y;
static SDL_Surface *back;
static SDL_Rect back_rect = {
.x = 0,
.y = 0,
.w = 2*RADIUS+1,
.h = 2*RADIUS+1,
};
static SDL_Rect front_rect = {
.w = 2*RADIUS+1,
.h = 2*RADIUS+1,
};
int plot(int x, int y)
{
SDL_Event event;
if (!first) {
SDL_BlitSurface(back, &back_rect, surf, &front_rect);
SDL_LockSurface(surf);
filledCircleColor(surf, last_x, last_y, RADIUS, OLD_RGBA);
SDL_UnlockSurface(surf);
}
front_rect.x = x;
front_rect.y = y;
x += RADIUS;
y += RADIUS;
SDL_BlitSurface(surf, &front_rect, back, &back_rect);
SDL_LockSurface(surf);
filledCircleColor(surf, x, y, RADIUS, NEW_RGBA);
SDL_UnlockSurface(surf);
if (!first)
SDL_UpdateRect(surf,
last_x-RADIUS, last_y-RADIUS, 2*RADIUS+1, 2*RADIUS+1);
SDL_UpdateRect(surf, x-RADIUS, y-RADIUS, 2*RADIUS+1, 2*RADIUS+1);
first = 0;
last_x = x;
last_y = y;
while (SDL_PollEvent(&event))
switch (event.type) {
case SDL_KEYDOWN:
switch (event.key.keysym.sym) {
case SDLK_c:
SDL_LockSurface(surf);
SDL_FillRect(surf, NULL,
SDL_MapRGB(surf->format, 0, 0, 0));
SDL_UpdateRect(surf, 0, 0, 0, 0);
SDL_UnlockSurface(surf);
break;
case SDLK_q:
return 0;
default:
break;
}
break;
case SDL_QUIT:
return 0;
default:
break;
}
return 1;
}
void plot_init(void)
{
const SDL_PixelFormat *f;
if (SDL_Init(SDL_INIT_VIDEO) < 0) {
fprintf(stderr, "SDL_init: %s\n", SDL_GetError());
exit(1);
}
atexit(SDL_Quit);
surf = SDL_SetVideoMode(XRES+2*RADIUS+1, YRES+2*RADIUS+1, 0,
SDL_SWSURFACE);
if (!surf) {
fprintf(stderr, "SDL_SetVideoMode: %s\n", SDL_GetError());
exit(1);
}
f = surf->format;
back = SDL_CreateRGBSurface(SDL_SWSURFACE, 2*RADIUS+1, 2*RADIUS+1,
f->BitsPerPixel, f->Rmask, f->Gmask, f->Bmask, f->Amask);
if (!back) {
fprintf(stderr, "SDL_SetVideoMode: %s\n", SDL_GetError());
exit(1);
}
}

20
tools/plot.h Normal file
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@ -0,0 +1,20 @@
/*
* tools/plot.h - Sample plot
*
* Written 2012 by Werner Almesberger
* Copyright 2012 Werner Almesberger
*
* 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.
*/
#ifndef PLOT_H
#define PLOT_H
int plot(int x, int y);
void plot_init(void);
#endif /* !PLOT_H */