int32_t main ( void )
{
System_Init();
_ADC_START_CONVERT(); // Start ADC convert
while ( 1 )
{
P01 = 0;
P00 = 0;
maintask();
UartFramePro ( &UartRcvFrame );
I2cFramePro();
}
}
//
//-----------------------------------------------------------------------------------------
// Setup Ports, timers, start the works and never return, unless reset
// by the watchdog timer
// then - do everything, all over again
//-----------------------------------------------------------------------------------------
//
int main(void)
{
MCUSR &= ~(1 << WDRF); // Disable watchdog if enabled by bootloader/fuses
wdt_disable();
clock_prescale_set(clock_div_1); // with 16MHz crystal this means CLK=16000000
//------------------------------------------
// 16-bit Timer1 Initialization
TCCR1A = 0; //start the timer
TCCR1B = (1 << CS12); // prescale Timer1 by CLK/256
// 16000000 Hz / 256 = 62500 ticks per second
// 16-bit = 2^16 = 65536 maximum ticks for Timer1
// 65536 / 62500 = ~1.05 seconds
// so Timer1 will overflow back to 0 about every 1 seconds
// Timer1val = TCNT1; // get current Timer1 value
//------------------------------------------
// Init and set output for LEDS
LED_DDR = LED;
LED_PORT = 0;
EXTLED_DDR = EXT_G_LED | EXT_R_LED; // Init Green and Red LEDs
EXTLED_PORT = 0;
//------------------------------------------
// Init Pushbutton input
ENC_PUSHB_DDR = ENC_PUSHB_DDR & ~ENC_PUSHB_PIN; // Set pin for input
ENC_PUSHB_PORT= ENC_PUSHB_PORT | ENC_PUSHB_PIN; // Set pull up
//------------------------------------------
// Set run time parameters to Factory default under certain conditions
//
// Enforce "Factory default settings" when firmware is run for the very first time after
// a fresh firmware installation with a new "serial number" in the COLDSTART_REF #define
// This may be necessary if there is garbage in the EEPROM, preventing startup
// To activate, roll "COLDSTART_REF" Serial Number in the PM.h file
if (eeprom_read_byte(&E.EEPROM_init_check) != R.EEPROM_init_check)
{
eeprom_write_block(&R, &E, sizeof(E)); // Initialize eeprom to "factory defaults".
}
else
{
eeprom_read_block(&R, &E, sizeof(E)); // Load the persistent data from eeprom
}
uint8_t i2c_status = I2C_Init(); // Initialize I2C comms
lcd_Init(); // Init the LCD
// Initialize the LCD bargraph, load the bargraph custom characters
lcd_bargraph_Init();
//------------------------------------------
// LCD Print Version and I2C information (6 seconds in total during startup)
lcdClear();
lcdGotoXY(0,0);
lcdPrintData(STARTUPDISPLAY1,strlen(STARTUPDISPLAY1));
lcdGotoXY(0,1);
lcdPrintData(STARTUPDISPLAY2,strlen(STARTUPDISPLAY2));
_delay_ms(300);
lcdGotoXY(20-strlen(STARTUPDISPLAY3),1);
lcdPrintData(STARTUPDISPLAY3,strlen(STARTUPDISPLAY3));
_delay_ms(200);
lcdGotoXY(20-strlen(STARTUPDISPLAY4),2);
lcdPrintData(STARTUPDISPLAY4,strlen(STARTUPDISPLAY4));
_delay_ms(2500);
lcdGotoXY(0,3);
lcdPrintData(STARTUPDISPLAY5,strlen(STARTUPDISPLAY5));
sprintf(lcd_buf,"V%s", VERSION);
lcdGotoXY(20-strlen(lcd_buf),3);
lcdPrintData(lcd_buf, strlen(lcd_buf));
_delay_ms(2000);
lcdGotoXY(0,3);
if (i2c_status==1) lcdPrintData("AD7991-0 detected ",20);
else if (i2c_status==2) lcdPrintData("AD7991-1 detected ",20);
else lcdPrintData("Using built-in A/D ",20); // No I2C device detected,
// we will be using the builtin 10 bit ADs
if (R.USB_data) // Enumerate USB serial port, if USB Serial Data enabled
{
usb_init(); // Initialize USB communications
Status&=~USB_AVAILABLE; // Disable USB communications until checked if actually available
}
_delay_ms(1000);
//wdt_enable(WDTO_1S); // Start the Watchdog Timer, 1 second
encoder_Init(); // Init Rotary encoder
Menu_Mode = DEFAULT_MODE; // Power Meter Mode is normal default
Status |= MODE_CHANGE | MODE_DISPLAY; // Force a Display of Mode Intro when starting up
// Start the works, we're in business
while (1)
{
maintask(); // Do useful stuff
if (R.USB_data) // Do the below if USB Port has been enabled
{
// If USB port is available and not busy, then use it - otherwise mark it as blocked.
if (usb_configured() && (usb_serial_get_control() & USB_SERIAL_DTR))
{
Status |= USB_AVAILABLE; // Enable USB communications
EXTLED_PORT |= EXT_G_LED; // Turn Green LED On
usb_read_serial();
}
else
{
Status&=~USB_AVAILABLE; // Clear USB Available Flag to disable USB communications
EXTLED_PORT &= ~EXT_G_LED; // Turn Green LED off, if previously on
}
}
}
}
