int main (void)
{
uint8_t menu_status;
struct keyboard_event input;
static usart_rs232_options_t SERIAL_OPTIONS = {
.baudrate = 57600,
.charlength = USART_CHSIZE_8BIT_gc,
.paritytype = USART_PMODE_DISABLED_gc,
.stopbits = false
};
sysclk_init();
board_init();
solenoid_init();
gfx_mono_init();
usart_init_rs232(USART_SERIAL, &SERIAL_OPTIONS);
gpio_toggle_pin(NHD_C12832A1Z_BACKLIGHT);
while(true)
{
gfx_mono_menu_init(&main_menu);
do {
do {
keyboard_get_key_state(&input);
} while (input.type != KEYBOARD_RELEASE);
menu_status = gfx_mono_menu_process_key(&main_menu, input.keycode);
} while (menu_status == GFX_MONO_MENU_EVENT_IDLE);
//Determine what song to play based on
//the input from the user controlling the A3BU
switch(menu_status) {
case 0:
song_menu(0);
play_song_with_input(SAMPLE_SONG, SAMPLE_SONG_LENGTH);
break;
case 1:
song_menu(1);
play_song_with_input(STAIRWAY, 6);
break;
case 2:
song_menu(2);
play_song_with_input(MISERLOU, 1);
break;
case 3:
song_menu(3);
play_serial();
break;
}
}
}
/**
* \brief Show a menu presenting the date and time applications
*/
void date_time_application(void)
{
uint8_t menu_status;
struct keyboard_event input;
while(true) {
gfx_mono_menu_init(&datetime_menu);
do {
do {
keyboard_get_key_state(&input);
// Wait for key release
} while (input.type != KEYBOARD_RELEASE);
// Send key to menu system
menu_status = gfx_mono_menu_process_key(&datetime_menu,
input.keycode);
// Wait for something useful to happen in the menu system
} while (menu_status == GFX_MONO_MENU_EVENT_IDLE);
switch(menu_status) {
case 0:
display_date_time_application();
break;
case 1:
set_date_application();
break;
case 2:
set_time_application();
break;
case 3:
timezone_select_application();
break;
default:
// Return to the main menu on unknown element or back key
return;
}
}
}
/**
* \brief Main function.
*
* Initializes the board and reads out the production date stored in EEPROM and
* set timezone from EEPROM if it is set. If it is not set it will open the
* timezone selector to select the local timezone. It then runs the menu system
* in an infinite while loop.
*/
int main(void)
{
uint8_t menu_status;
struct keyboard_event input;
uint32_t rtc_timestamp;
sysclk_init();
board_init();
pmic_init();
gfx_mono_init();
touch_init();
adc_sensors_init();
// Enable display backlight
gpio_set_pin_high(NHD_C12832A1Z_BACKLIGHT);
// Workaround for known issue: Enable RTC32 sysclk
sysclk_enable_module(SYSCLK_PORT_GEN, SYSCLK_RTC);
while (RTC32.SYNCCTRL & RTC32_SYNCBUSY_bm) {
// Wait for RTC32 sysclk to become stable
}
// If we have battery power and RTC is running, don't initialize RTC32
if (rtc_vbat_system_check(false) != VBAT_STATUS_OK) {
rtc_init();
// Set current time to after production date
rtc_timestamp = production_date_get_timestamp() + 1;
rtc_set_time(rtc_timestamp);
}
// Get current time
rtc_timestamp = rtc_get_time();
// Make sure RTC has not been set to a too early date .
if (rtc_timestamp < FIRST_POSSIBLE_TIMESTAMP) {
// Set time to 01.01.2011 00:00:00
rtc_set_time(FIRST_POSSIBLE_TIMESTAMP);
}
// Initialize USB CDC class
cdc_start();
cpu_irq_enable();
// Display a splash screen showing button functions
button_splash();
// Set timezone from EEPROM or to a default value
timezone_init();
/* Main loop. Read keyboard status and pass input to menu system.
* When an element has been selected in the menu, it will return the
* index of the element that should be run. This can be an application
* or another menu.
*/
while (true) {
// (re)initialize menu system
gfx_mono_menu_init(&main_menu);
do {
do {
keyboard_get_key_state(&input);
// Wait for key release
} while (input.type != KEYBOARD_RELEASE);
// Send key to menu system
menu_status = gfx_mono_menu_process_key(&main_menu, input.keycode);
// Wait for something useful to happen in the menu system
} while (menu_status == GFX_MONO_MENU_EVENT_IDLE);
switch (menu_status) {
case 0:
ntc_sensor_application();
break;
case 1:
lightsensor_application();
break;
case 2:
production_date_application();
break;
case 3:
date_time_application();
break;
case 4:
// Toggle LCD Backlight
gpio_toggle_pin(NHD_C12832A1Z_BACKLIGHT);
break;
case GFX_MONO_MENU_EVENT_EXIT:
// Fall trough to default and show button splash
default:
button_splash();
break;
};
}
}
/**
* \brief Show menu for error insertion and handle user's selection.
*
* This function changes device configurations and does some hacks to make
* the device behave incorrectly.
*
* The menu entries are
* - Change clock frequency: Changes the peripheral clock divider, simulating
* that the clock system has malfunctioned. This should be detected by the
* Class B frequency consistency test.
*
* - Mess with test timer: Changes how often periodic tests are performed,
* simulating an error with an interrupt timer. This should be detected by
* the Class B interrupt monitor.
*
* - Change a Flash section: Changes the string for the menu title stored in
* program memory to "Out of cheese", simulating Flash memory corruption.
* This can be changed back by selecting the menu item again. This should be
* detected by the Class B Flash CRC test.
*
* - Scramble SRAM section: Starts a continuous DMA transfer in the background
* to a memory location, simulating transient SRAM corruption. This should
* be detected by the periodic and power-on Class B SRAM test.
*
* - Enter infinite loop: Simulates a runaway program counter by looping
* forever. This should be detected by the watchdog timer system which is
* tested on device power-up.
*
* - Change ADC reference: Enables a callback function for the ADC, which will
* change the voltage reference after the next completed conversion. This
* will cause the analog IO test to fail when user turns up the power to the
* plate.
*/
void oven_classb_error_insertion(void)
{
uint8_t menu_status;
struct keyboard_event input;
struct adc_channel_config adcch_conf;
/* Initialize menu system */
gfx_mono_menu_init(&error_menu);
/* Wait for user to select something in the menu system */
do {
do {
keyboard_get_key_state(&input);
oven_wdt_periodic_reset();
/* Wait for key release */
} while (input.type != KEYBOARD_RELEASE);
/* Send key to menu system */
menu_status = gfx_mono_menu_process_key(&error_menu,
input.keycode);
oven_wdt_periodic_reset();
} while (menu_status == GFX_MONO_MENU_EVENT_IDLE);
/* Handle the user's selection */
switch (menu_status) {
case 0:
/* Change cpu frequency by modifying the prescalers */
sysclk_set_prescalers(CLK_PSADIV_4_gc, CLK_PSBCDIV_1_1_gc);
break;
case 1:
/* Change timing of the periodic temperature tests */
OVEN_PERIODIC_TEMPTEST_TC.CTRLA = TC_CLKSEL_DIV256_gc;
break;
case 2:
/* Change flash section. */
oven_classb_flash_corrupter();
break;
case 3:
/* Disrupt SRAM by setting up the DMA to write to a location on
* the heap, triggered by the class B frequency monitor timer
*/
PR.PRGEN &= ~PR_DMA_bm;
DMA.CTRL |= DMA_ENABLE_bm;
DMA.CH0.TRIGSRC = DMA_CH_TRIGSRC_TCD1_CCA_gc;
/* Address of Timer D1 CNT base is 0x0960. */
DMA.CH0.SRCADDR0 = 0x60;
DMA.CH0.SRCADDR1 = 0x09;
DMA.CH0.SRCADDR2 = 0x00;
DMA.CH0.DESTADDR0 = ((uint16_t)&variable_for_sram_error) & 0xFF;
DMA.CH0.DESTADDR1 = (((uint16_t)&variable_for_sram_error) >> 8)
& 0xFF;
DMA.CH0.DESTADDR2 = 0x00;
DMA.CH0.CTRLA = DMA_CH_BURSTLEN_2BYTE_gc | DMA_CH_REPEAT_bm
| DMA_CH_ENABLE_bm;
break;
case 4:
/* Enter infinite loop */
while (1) {
}
break;
case 5:
/* Set up ADC channel interrupt */
adc_set_callback(&ADCA, adc_foul_callback);
adcch_read_configuration(&ADCA, ADC_CH0, &adcch_conf);
adcch_enable_interrupt(&adcch_conf);
adcch_write_configuration(&ADCA, ADC_CH0, &adcch_conf);
adcch_read_configuration(&ADCA, ADC_CH2, &adcch_conf);
adcch_enable_interrupt(&adcch_conf);
adcch_write_configuration(&ADCA, ADC_CH2, &adcch_conf);
break;
case 6:
/* Back */
break;
case GFX_MONO_MENU_EVENT_EXIT:
/* Fall through to default */
default:
/* Nothing, go back. */
break;
}
}