struct mpu6050_t* mpu6050_alloc(struct avr_t * avr, uint8_t addr, struct sc18is600_t* sc18)
{
struct mpu6050_t* mpu;
// allocate and reset the object
mpu = malloc(sizeof(mpu6050_t));
memset(mpu, 0, sizeof(mpu6050_t));
mpu->avr = avr;
mpu->self_addr = addr;
// create the irqs
mpu->irq = avr_alloc_irq(&avr->irq_pool, MPU_IRQ_IN, MPU_IRQ_COUNT, mpu_irq_names);
avr_irq_register_notify(mpu->irq + MPU_IRQ_IN, mpu6050_i2c_in_hook, mpu);
if (sc18) {
// connect to the TWI/i2c master of the SC18IS600
avr_irq_t * sc18_irq = sc18is600_i2c_irq_get(sc18);
avr_connect_irq(sc18_irq + SC18_I2C_IRQ_OUT, mpu->irq + MPU_IRQ_IN);
avr_connect_irq(mpu->irq + MPU_IRQ_OUT, sc18_irq + SC18_I2C_IRQ_IN);
}
else {
// "connect" the IRQs of the MPU to the TWI/i2c master of the AVR
uint32_t i2c_irq_base = AVR_IOCTL_TWI_GETIRQ(0);
avr_connect_irq(mpu->irq + MPU_IRQ_OUT, avr_io_getirq(avr, i2c_irq_base, TWI_IRQ_INPUT));
avr_connect_irq(avr_io_getirq(avr, i2c_irq_base, TWI_IRQ_OUTPUT), mpu->irq + MPU_IRQ_IN);
}
return mpu;
}
void
thermistor_init (struct avr_t *avr,
thermistor_p p,
int adc_mux_number,
short *table, int table_entries, int oversampling, float start_temp)
{
p->avr = avr;
p->irq = avr_alloc_irq (&avr->irq_pool, 0, IRQ_TERM_COUNT, irq_names);
avr_irq_register_notify (p->irq + IRQ_TERM_ADC_TRIGGER_IN, thermistor_in_hook, p);
avr_irq_register_notify (p->irq + IRQ_TERM_TEMP_VALUE_IN, thermistor_value_in_hook, p);
p->oversampling = oversampling;
p->table = table;
p->table_entries = table_entries;
p->adc_mux_number = adc_mux_number;
p->current = start_temp;
avr_irq_t *src = avr_io_getirq (p->avr, AVR_IOCTL_ADC_GETIRQ, ADC_IRQ_OUT_TRIGGER);
avr_irq_t *dst = avr_io_getirq (p->avr, AVR_IOCTL_ADC_GETIRQ, adc_mux_number);
if (src && dst)
{
avr_connect_irq (src, p->irq + IRQ_TERM_ADC_TRIGGER_IN);
avr_connect_irq (p->irq + IRQ_TERM_ADC_VALUE_OUT, dst);
}
printf ("%s on ADC %d start %.2f\n", __func__, adc_mux_number, p->current);
}
void LcdLogic::wireHook(avr_t *avr)
{
this->avr = avr;
hd44780_init(avr, &hd44780, WIDTH, HEIGHT, this, LcdLogic::displayChanged);
/* Connect data lines to Port C, 4-7 (bidirectional). */
for (int i = 0; i < 4; i++) {
avr_irq_t * iavr = avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('C'), 4 + i);
avr_irq_t * ilcd = hd44780.irq + IRQ_HD44780_D4 + i;
// AVR -> LCD
avr_connect_irq(iavr, ilcd);
// LCD -> AVR
avr_connect_irq(ilcd, iavr);
}
avr_connect_irq(avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('C'), 2),
hd44780.irq + IRQ_HD44780_RS);
avr_connect_irq(avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('C'), 3),
hd44780.irq + IRQ_HD44780_E);
/* RW is set to GND. */
avr_vcd_init(avr, "lcd.vcd", &vcdFile, 100000);
avr_vcd_add_signal(&vcdFile,
avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('C'), IOPORT_IRQ_PIN_ALL),
4 /* bits */, "D4-D7");
avr_vcd_add_signal(&vcdFile,
avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('C'), 2),
1 /* bits */, "RS");
avr_vcd_add_signal(&vcdFile,
avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('C'), 3),
1 /* bits */, "E");
}
static void
_avr_io_command_write (struct avr_t *avr, avr_io_addr_t addr, uint8_t v, void *param)
{
AVR_LOG (avr, LOG_TRACE, "%s %02x\n", __FUNCTION__, v);
switch (v)
{
case SIMAVR_CMD_VCD_START_TRACE:
if (avr->vcd)
avr_vcd_start (avr->vcd);
break;
case SIMAVR_CMD_VCD_STOP_TRACE:
if (avr->vcd)
avr_vcd_stop (avr->vcd);
break;
case SIMAVR_CMD_UART_LOOPBACK:
{
avr_irq_t *src = avr_io_getirq (avr, AVR_IOCTL_UART_GETIRQ ('0'), UART_IRQ_OUTPUT);
avr_irq_t *dst = avr_io_getirq (avr, AVR_IOCTL_UART_GETIRQ ('0'), UART_IRQ_INPUT);
if (src && dst)
{
AVR_LOG (avr, LOG_TRACE, "%s activating uart local echo IRQ src %p dst %p\n",
__FUNCTION__, src, dst);
avr_connect_irq (src, dst);
}
}
break;
}
}
void uart_udp_connect(uart_udp_t * p, char uart)
{
// disable the stdio dump, as we are sending binary there
uint32_t f = 0;
avr_ioctl(p->avr, AVR_IOCTL_UART_GET_FLAGS(uart), &f);
f &= ~AVR_UART_FLAG_STDIO;
avr_ioctl(p->avr, AVR_IOCTL_UART_SET_FLAGS(uart), &f);
avr_irq_t * src = avr_io_getirq(p->avr, AVR_IOCTL_UART_GETIRQ(uart), UART_IRQ_OUTPUT);
avr_irq_t * dst = avr_io_getirq(p->avr, AVR_IOCTL_UART_GETIRQ(uart), UART_IRQ_INPUT);
avr_irq_t * xon = avr_io_getirq(p->avr, AVR_IOCTL_UART_GETIRQ(uart), UART_IRQ_OUT_XON);
avr_irq_t * xoff = avr_io_getirq(p->avr, AVR_IOCTL_UART_GETIRQ(uart), UART_IRQ_OUT_XOFF);
if (src && dst) {
avr_connect_irq(src, p->irq + IRQ_UART_UDP_BYTE_IN);
avr_connect_irq(p->irq + IRQ_UART_UDP_BYTE_OUT, dst);
}
if (xon)
avr_irq_register_notify(xon, uart_udp_xon_hook, p);
if (xoff)
avr_irq_register_notify(xoff, uart_udp_xoff_hook, p);
}
void LedButtonsLogic::wireHook(avr_t *avr)
{
this->avr = avr;
/* Every port has 8 pins. */
const int count = strlen(ports) * 8;
/* Construct the port names. */
int nameLength = sizeof("PORTA0");
const char *names[count];
char _names[count * nameLength];
char *s = _names;
for (int i = 0; i < count; i++) {
int port = i / 8;
int pin = i % 8;
snprintf(s, nameLength, "PORT%c%d", ports[port], pin);
names[i] = s;
s += nameLength;
}
irq = avr_alloc_irq(&avr->irq_pool, 0, count, names);
for (int i = 0; i < count; i++) {
int port = i / 8;
int pin = i % 8;
avr_connect_irq(irq + i, avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ(ports[port]), pin));
/* We need this helper struct to keep track of 1) which port the IRQ came from,
* and 2) which class instance to notify. */
CallbackData *d = new CallbackData;
d->instance = this;
d->port = 'A' + port;
callbackData.append(d);
avr_irq_register_notify(avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ(ports[port]), pin),
LedButtonsLogic::pinChanged, d);
}
avr_vcd_init(avr, "ledbuttons.vcd", &vcdFile, 100000);
for (int i = 0; i < 8; i++) {
char name[6];
snprintf(name, 6, "PORT%c", ports[i]);
avr_vcd_add_signal(&vcdFile,
avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ(ports[i]), IOPORT_IRQ_PIN_ALL),
8 /* bits */, name);
}
}
static void avr_extint_reset(avr_io_t * port)
{
avr_extint_t * p = (avr_extint_t *)port;
for (int i = 0; i < EXTINT_COUNT; i++) {
avr_irq_register_notify(p->io.irq + i, avr_extint_irq_notify, p);
if (p->eint[i].port_ioctl) {
avr_irq_t * irq = avr_io_getirq(p->io.avr,
p->eint[i].port_ioctl, p->eint[i].port_pin);
avr_connect_irq(irq, p->io.irq + i);
}
}
}
int main(int argc, char *argv[])
{
elf_firmware_t f;
const char *fname="../src/binw2.elf";
const char *mmcu="attiny13";
elf_read_firmware(fname, &f);
snprintf(f.mmcu, sizeof(f.mmcu) - 1, "%s", mmcu);
f.frequency = 4800000;
printf("firmware %s f=%d mmcu=%s\n", fname, (int)f.frequency, f.mmcu);
avr = avr_make_mcu_by_name(f.mmcu);
if (!avr) {
fprintf(stderr, "%s: AVR '%s' not known\n", argv[0], f.mmcu);
exit(1);
}
avr_init(avr);
avr_load_firmware(avr, &f);
// initialize our 'peripheral'
button_init(avr, &button, "button");
// "connect" the output irq of the button to the port pin of the AVR
avr_connect_irq(
button.irq + IRQ_BUTTON_OUT,
avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('B'), IOPORT_IRQ_PIN4));
avr_irq_register_notify(
avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('B'), IOPORT_IRQ_DIRECTION_ALL),
ddr_hook,
NULL);
avr_irq_register_notify(
avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('B'), IOPORT_IRQ_PIN_ALL),
pin_changed_hook,
"portb");
// even if not setup at startup, activate gdb if crashing
avr->gdb_port = 1234;
//if (0) {
// //avr->state = cpu_Stopped;
// avr_gdb_init(avr);
//}
/*
* VCD file initialization
*
* This will allow you to create a "wave" file and display it in gtkwave
* Pressing "r" and "s" during the demo will start and stop recording
* the pin changes
*/
avr_vcd_init(avr, "gtkwave_output.vcd", &vcd_file, 100000 /* usec */);
avr_vcd_add_signal(&vcd_file,
avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('B'), IOPORT_IRQ_PIN_ALL), 8 /* bits */ ,
"portb" );
avr_vcd_add_signal(&vcd_file,
button.irq + IRQ_BUTTON_OUT, 1 /* bits */ ,
"button" );
// 'raise' it, it's a "pullup"
avr_raise_irq(button.irq + IRQ_BUTTON_OUT, 0);
printf( "Launching binw2 simulation\n"
" Press 'space' to press virtual button attached to pin %d\n"
" Press 'q' to quit\n"
" Press 'r' to start recording a 'wave' file\n"
" Press 's' to stop recording\n",
IOPORT_IRQ_PIN4);
/*
* OpenGL init, can be ignored
*/
glutInit(&argc, argv); /* initialize GLUT system */
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
glutInitWindowSize(5 * SZ_PIXSIZE, 7 * SZ_PIXSIZE);
window = glutCreateWindow("Glut"); /* create window */
// Set up projection matrix
glMatrixMode(GL_PROJECTION); // Select projection matrix
glLoadIdentity(); // Start with an identity matrix
glOrtho(0, 5 * SZ_PIXSIZE, 0, 7 * SZ_PIXSIZE, 0, 10);
//glScalef(1, -1, 1);
//glTranslatef(0, -7 * SZ_PIXSIZE, 0);
glutDisplayFunc(displayCB); /* set window's display callback */
glutKeyboardFunc(keyCB); /* set window's key callback */
glutTimerFunc(1000 / 24, timerCB, 0);
// the AVR run on it's own thread. it even allows for debugging!
pthread_t run;
pthread_create(&run, NULL, avr_run_thread, NULL);
glutMainLoop();
}
static void avr_timer_reset(avr_io_t * port)
{
avr_timer_t * p = (avr_timer_t *)port;
avr_cycle_timer_cancel(p->io.avr, avr_timer_tov, p);
avr_cycle_timer_cancel(p->io.avr, avr_timer_compa, p);
avr_cycle_timer_cancel(p->io.avr, avr_timer_compb, p);
avr_cycle_timer_cancel(p->io.avr, avr_timer_compc, p);
// check to see if the comparators have a pin output. If they do,
// (try) to get the ioport corresponding IRQ and connect them
// they will automagically be triggered when the comparator raises
// it's own IRQ
for (int compi = 0; compi < AVR_TIMER_COMP_COUNT; compi++) {
p->comp[compi].comp_cycles = 0;
avr_ioport_getirq_t req = {
.bit = p->comp[compi].com_pin
};
if (avr_ioctl(port->avr, AVR_IOCTL_IOPORT_GETIRQ_REGBIT, &req) > 0) {
// cool, got an IRQ
// printf("%s-%c COMP%c Connecting PIN IRQ %d\n", __FUNCTION__, p->name, 'A'+compi, req.irq[0]->irq);
avr_connect_irq(&port->irq[TIMER_IRQ_OUT_COMP + compi], req.irq[0]);
}
}
avr_ioport_getirq_t req = {
.bit = p->icp
};
if (avr_ioctl(port->avr, AVR_IOCTL_IOPORT_GETIRQ_REGBIT, &req) > 0) {
// cool, got an IRQ for the input capture pin
// printf("%s-%c ICP Connecting PIN IRQ %d\n", __FUNCTION__, p->name, req.irq[0]->irq);
avr_irq_register_notify(req.irq[0], avr_timer_irq_icp, p);
}
}
static const char * irq_names[TIMER_IRQ_COUNT] = {
[TIMER_IRQ_OUT_PWM0] = "8>pwm0",
[TIMER_IRQ_OUT_PWM1] = "8>pwm1",
[TIMER_IRQ_OUT_COMP + 0] = ">compa",
[TIMER_IRQ_OUT_COMP + 1] = ">compb",
[TIMER_IRQ_OUT_COMP + 2] = ">compc",
};
static avr_io_t _io = {
.kind = "timer",
.reset = avr_timer_reset,
.irq_names = irq_names,
};
void avr_timer_init(avr_t * avr, avr_timer_t * p)
{
p->io = _io;
avr_register_io(avr, &p->io);
avr_register_vector(avr, &p->overflow);
avr_register_vector(avr, &p->icr);
// allocate this module's IRQ
avr_io_setirqs(&p->io, AVR_IOCTL_TIMER_GETIRQ(p->name), TIMER_IRQ_COUNT, NULL);
// marking IRQs as "filtered" means they don't propagate if the
// new value raised is the same as the last one.. in the case of the
// pwm value it makes sense not to bother.
p->io.irq[TIMER_IRQ_OUT_PWM0].flags |= IRQ_FLAG_FILTERED;
p->io.irq[TIMER_IRQ_OUT_PWM1].flags |= IRQ_FLAG_FILTERED;
if (p->wgm[0].reg) // these are not present on older AVRs
avr_register_io_write(avr, p->wgm[0].reg, avr_timer_write, p);
avr_register_io_write(avr, p->cs[0].reg, avr_timer_write, p);
// this assumes all the "pending" interrupt bits are in the same
// register. Might not be true on all devices ?
avr_register_io_write(avr, p->overflow.raised.reg, avr_timer_write_pending, p);
/*
* Even if the timer is 16 bits, we don't care to have watches on the
* high bytes because the datasheet says that the low address is always
* the trigger.
*/
for (int compi = 0; compi < AVR_TIMER_COMP_COUNT; compi++) {
avr_register_vector(avr, &p->comp[compi].interrupt);
if (p->comp[compi].r_ocr) // not all timers have all comparators
avr_register_io_write(avr, p->comp[compi].r_ocr, avr_timer_write_ocr, p);
}
avr_register_io_write(avr, p->r_tcnt, avr_timer_tcnt_write, p);
avr_register_io_read(avr, p->r_tcnt, avr_timer_tcnt_read, p);
}
int main(int argc, char *argv[])
{
elf_firmware_t f;
//const char * fname = "atmega48_ledramp.axf";
const char * fname = argv[1];
char path[256];
// sprintf(path, "%s/%s", dirname(argv[0]), fname);
// printf("Firmware pathname is %s\n", path);
elf_read_firmware(fname, &f);
printf("firmware %s f=%d mmcu=%s\n", fname, (int)f.frequency, f.mmcu);
avr = avr_make_mcu_by_name(f.mmcu);
if (!avr) {
fprintf(stderr, "%s: AVR '%s' now known\n", argv[0], f.mmcu);
exit(1);
}
avr_init(avr);
avr_load_firmware(avr, &f);
// initialize our 'peripheral'
button_init(avr, &button, "button");
// "connect" the output irw of the button to the port pin of the AVR
avr_connect_irq(
button.irq + IRQ_BUTTON_OUT,
avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('C'), 0));
// connect all the pins on port B to our callback
for (int i = 0; i < 8; i++)
avr_irq_register_notify(
avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('B'), i),
pin_changed_hook,
NULL);
// even if not setup at startup, activate gdb if crashing
avr->gdb_port = 1234;
if (0) {
//avr->state = cpu_Stopped;
avr_gdb_init(avr);
}
/*
* VCD file initialization
*
* This will allow you to create a "wave" file and display it in gtkwave
* Pressing "r" and "s" during the demo will start and stop recording
* the pin changes
*/
avr_vcd_init(avr, "gtkwave_output.vcd", &vcd_file, 100000 /* usec */);
avr_vcd_add_signal(&vcd_file,
avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('B'), IOPORT_IRQ_PIN_ALL), 8 /* bits */ ,
"portb" );
avr_vcd_add_signal(&vcd_file, avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('C'), IOPORT_IRQ_PIN0), 1, "portc");
avr_vcd_add_signal(&vcd_file,
button.irq + IRQ_BUTTON_OUT, 1 /* bits */ ,
"button" );
// 'raise' it, it's a "pullup"
avr_raise_irq(button.irq + IRQ_BUTTON_OUT, 1);
printf( "Demo launching: 'LED' bar is PORTB, updated every 1/64s by the AVR\n"
" firmware using a timer. If you press 'space' this presses a virtual\n"
" 'button' that is hooked to the virtual PORTC pin 0 and will\n"
" trigger a 'pin change interrupt' in the AVR core, and will 'invert'\n"
" the display.\n"
" Press 'q' to quit\n\n"
" Press 'r' to start recording a 'wave' file\n"
" Press 's' to stop recording\n"
);
/*
* OpenGL init, can be ignored
*/
glutInit(&argc, argv); /* initialize GLUT system */
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
glutInitWindowSize(8 * pixsize, 1 * pixsize); /* width=400pixels height=500pixels */
window = glutCreateWindow("Glut"); /* create window */
// Set up projection matrix
glMatrixMode(GL_PROJECTION); // Select projection matrix
glLoadIdentity(); // Start with an identity matrix
glOrtho(0, 8 * pixsize, 0, 1 * pixsize, 0, 10);
glScalef(1,-1,1);
glTranslatef(0, -1 * pixsize, 0);
glutDisplayFunc(displayCB); /* set window's display callback */
glutKeyboardFunc(keyCB); /* set window's key callback */
glutTimerFunc(1000 / 24, timerCB, 0);
// the AVR run on it's own thread. it even allows for debugging!
pthread_t run;
pthread_create(&run, NULL, avr_run_thread, NULL);
glutMainLoop();
}
int main(int argc, char* argv[]) {
int r = 0;
char* elf_file = NULL;
int gdb_port = 0;
for (char** arg = &argv[1]; *arg != NULL; ++arg) {
if (strcmp("-d", *arg) == 0)
gdb_port = atoi(*(++arg));
else
elf_file = *arg;
}
if (elf_file == NULL) {
fprintf(stderr, "Give me a .elf file to load\n");
return 1;
}
elf_firmware_t f;
elf_read_firmware(elf_file, &f);
avr_t* avr = avr_make_mcu_by_name("atmega328p");
if (!avr) {
fprintf(stderr, "Unsupported cpu atmega328p\n");
return 1;
}
avr_init(avr);
if (gdb_port != 0) {
avr->gdb_port = gdb_port;
avr_gdb_init(avr);
}
avr->frequency = 16000000;
avr_load_firmware(avr, &f);
pcd8544_init(avr, &lcd);
avr_connect_irq(avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('C'), 2),
lcd.irq + IRQ_PCD8544_DC);
avr_connect_irq(avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('C'), 1),
lcd.irq + IRQ_PCD8544_CS);
avr_connect_irq(avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('C'), 0),
lcd.irq + IRQ_PCD8544_RST);
avr_connect_irq(avr_io_getirq(avr, AVR_IOCTL_SPI_GETIRQ(0), SPI_IRQ_OUTPUT),
lcd.irq + IRQ_PCD8544_SPI_IN);
gb_keypad_init(avr, &keypad);
for (int i = 0; i < keydefs_length; i++) {
const keydef_t *k = keydefs + i;
avr_connect_irq(keypad.irq + k->keypad_key,
avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ(k->port), k->pin));
// Start with the pin high
avr_ioport_t* port = (avr_ioport_t*) avr->io[k->avr_port].w.param;
key_io[i].pin_mask = (1<<k->pin);
key_io[i].pull_value = &port->external.pull_value;
port->external.pull_mask |= key_io[i].pin_mask;
port->external.pull_value |= key_io[i].pin_mask;
gb_keypad_press(&keypad, k->keypad_key, 1);
}
if (display_init()) {
lcd_ram_mutex = SDL_CreateMutex();
SDL_Thread* avr_thread = SDL_CreateThread(avr_run_thread, "avr-thread", avr);
main_loop();
SDL_LockMutex(lcd_ram_mutex);
quit_flag = 1;
SDL_UnlockMutex(lcd_ram_mutex);
int avr_thread_return;
SDL_WaitThread(avr_thread, &avr_thread_return);
SDL_DestroyMutex(lcd_ram_mutex);
} else {
r = 1;
fprintf(stderr, "%s\n", display_error_message());
}
display_destroy();
return r;
}
int main(int argc, char *argv[])
{
elf_firmware_t f;
const char * fname = "atmega168_timer_64led.axf";
//char path[256];
// sprintf(path, "%s/%s", dirname(argv[0]), fname);
//printf("Firmware pathname is %s\n", path);
elf_read_firmware(fname, &f);
printf("firmware %s f=%d mmcu=%s\n", fname, (int)f.frequency, f.mmcu);
avr = avr_make_mcu_by_name(f.mmcu);
if (!avr) {
fprintf(stderr, "%s: AVR '%s' now known\n", argv[0], f.mmcu);
exit(1);
}
avr_init(avr);
avr_load_firmware(avr, &f);
//
// initialize our 'peripherals'
//
hc595_init(avr, &shifter);
button_init(avr, &button[B_START], "button.start");
avr_connect_irq(
button[B_START].irq + IRQ_BUTTON_OUT,
avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('C'), 0));
button_init(avr, &button[B_STOP], "button.stop");
avr_connect_irq(
button[B_STOP].irq + IRQ_BUTTON_OUT,
avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('B'), 1));
button_init(avr, &button[B_RESET], "button.reset");
avr_connect_irq(
button[B_RESET].irq + IRQ_BUTTON_OUT,
avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('B'), 0));
// connects the fake 74HC595 array to the pins
avr_irq_t * i_mosi = avr_io_getirq(avr, AVR_IOCTL_SPI_GETIRQ(0), SPI_IRQ_OUTPUT),
* i_reset = avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('D'), 4),
* i_latch = avr_io_getirq(avr, AVR_IOCTL_IOPORT_GETIRQ('D'), 7);
avr_connect_irq(i_mosi, shifter.irq + IRQ_HC595_SPI_BYTE_IN);
avr_connect_irq(i_reset, shifter.irq + IRQ_HC595_IN_RESET);
avr_connect_irq(i_latch, shifter.irq + IRQ_HC595_IN_LATCH);
avr_irq_t * i_pwm = avr_io_getirq(avr, AVR_IOCTL_TIMER_GETIRQ('0'), TIMER_IRQ_OUT_PWM0);
avr_irq_register_notify(
i_pwm,
pwm_changed_hook,
NULL);
avr_irq_register_notify(
shifter.irq + IRQ_HC595_OUT,
hc595_changed_hook,
NULL);
// even if not setup at startup, activate gdb if crashing
avr->gdb_port = 1234;
if (0) {
//avr->state = cpu_Stopped;
avr_gdb_init(avr);
}
/*
* VCD file initialization
*
* This will allow you to create a "wave" file and display it in gtkwave
* Pressing "r" and "s" during the demo will start and stop recording
* the pin changes
*/
avr_vcd_init(avr, "gtkwave_output.vcd", &vcd_file, 10000 /* usec */);
avr_vcd_add_signal(&vcd_file,
avr_get_interrupt_irq(avr, 7), 1 /* bit */ ,
"TIMER2_COMPA" );
avr_vcd_add_signal(&vcd_file,
avr_get_interrupt_irq(avr, 17), 1 /* bit */ ,
"SPI_INT" );
avr_vcd_add_signal(&vcd_file,
i_mosi, 8 /* bits */ ,
"MOSI" );
avr_vcd_add_signal(&vcd_file,
i_reset, 1 /* bit */ ,
"595_RESET" );
avr_vcd_add_signal(&vcd_file,
i_latch, 1 /* bit */ ,
"595_LATCH" );
avr_vcd_add_signal(&vcd_file,
button[B_START].irq + IRQ_BUTTON_OUT, 1 /* bits */ ,
"start" );
avr_vcd_add_signal(&vcd_file,
button[B_STOP].irq + IRQ_BUTTON_OUT, 1 /* bits */ ,
"stop" );
avr_vcd_add_signal(&vcd_file,
button[B_RESET].irq + IRQ_BUTTON_OUT, 1 /* bits */ ,
"reset" );
avr_vcd_add_signal(&vcd_file,
shifter.irq + IRQ_HC595_OUT, 32 /* bits */ ,
"HC595" );
avr_vcd_add_signal(&vcd_file,
i_pwm, 8 /* bits */ ,
"PWM" );
// 'raise' it, it's a "pullup"
avr_raise_irq(button[B_START].irq + IRQ_BUTTON_OUT, 1);
avr_raise_irq(button[B_STOP].irq + IRQ_BUTTON_OUT, 1);
avr_raise_irq(button[B_RESET].irq + IRQ_BUTTON_OUT, 1);
printf( "Demo : This is a real world firmware, a 'stopwatch'\n"
" timer that can count up to 99 days. It features a PWM control of the\n"
" brightness, blinks the dots, displays the number of days spent and so on.\n\n"
" Press '0' to press the 'start' button\n"
" Press '1' to press the 'stop' button\n"
" Press '2' to press the 'reset' button\n"
" Press 'q' to quit\n\n"
" Press 'r' to start recording a 'wave' file - with a LOT of data\n"
" Press 's' to stop recording\n"
" + Make sure to watch the brightness dim once you stop the timer\n\n"
);
/*
* OpenGL init, can be ignored
*/
glutInit(&argc, argv); /* initialize GLUT system */
int w = 22, h = 8;
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
glutInitWindowSize(w * pixsize, h * pixsize); /* width=400pixels height=500pixels */
window = glutCreateWindow("Press 0, 1, 2 or q"); /* create window */
// Set up projection matrix
glMatrixMode(GL_PROJECTION); // Select projection matrix
glLoadIdentity(); // Start with an identity matrix
glOrtho(0, w * pixsize, 0, h * pixsize, 0, 10);
glScalef(1,-1,1);
glTranslatef(0, -1 * h * pixsize, 0);
glutDisplayFunc(displayCB); /* set window's display callback */
glutKeyboardFunc(keyCB); /* set window's key callback */
glutTimerFunc(1000 / 24, timerCB, 0);
// the AVR run on it's own thread. it even allows for debugging!
pthread_t run;
pthread_create(&run, NULL, avr_run_thread, NULL);
glutMainLoop();
}
