int rtc_test(void)
{
uart_putchars("RTC Test\r\n", 10);
DDRB = 0;
// AVR-PIN Signal RTC-PIN
// PB0 CS Chipselect 3
// PB3 MOSI Master Output 9
// PB4 MISO Master Input 5
// PB5 SCK Serial Clock 4
Set_bits(DDRB, (1 << PB0) | (1 << PB3) | (1 << PB5) | (1 << PB2));
CS_OFF();
SPCR = (1<<SPE) | (1 << MSTR) | (0 << SPI2X) | (0 << SPR1) | (0 << SPR0);
// RTC Software Reset
CS_ON();
spi_transfer(RTC_CTRL_RESET | RTC_WRITE);
spi_transfer(RTC_RESET);
CS_OFF();
//debug_rtc();
_delay_ms(100);
// RTC Status
CS_ON();
uint8_t ctrl_Status = spi_transfer(RTC_CTRL_STATUS);
CS_OFF();
if(ctrl_Status & RTC_PON) {
//clear POWER-ON bit
ctrl_Status &= ~RTC_PON;
CS_ON();
spi_transfer(RTC_CTRL_STATUS | RTC_WRITE);
spi_transfer(ctrl_Status);
CS_OFF();
}
if(ctrl_Status & RTC_SR) {
//clear SELF-RECOVERY bit
ctrl_Status &= ~RTC_SR;
CS_ON();
spi_transfer(RTC_CTRL_STATUS | RTC_WRITE);
spi_transfer(ctrl_Status);
CS_OFF();
}
CS_ON();
spi_transfer(RTC_CTRL_INT_FLAG | RTC_WRITE);
spi_transfer(0);
CS_OFF();
CS_ON();
spi_transfer(RTC_CTRL_INT | RTC_WRITE);
spi_transfer(1);
CS_OFF();
CS_ON();
spi_transfer(RTC_EPROM_CTRL | RTC_WRITE);
spi_transfer(RTC_THE);
CS_OFF();
// set datetime
now.year = 16;
now.month = 5;
now.day = 12;
now.hour = 12;
now.minute = 00;
now.second = 00;
rtc_set_datetime(&now);
// set alarm
TDateTime alarm = { 0 };
alarm.second = 5 | RTC_AE_S;
//alarm.minute = 0 | RTC_AE_S;
rtc_set_alarm(&alarm);
rtc_debug();
uint8_t s = 0;
for (;;)
{
rtc_get_datetime(&now);
int temperature = rtc_get_temperature();
if(now.second != s) {
s = now.second;
char buf[50] = { 0 };
sprintf(buf, "%d.%d.%d - %d:%d:%d Temp:%d\r\n", now.day, now.month, now.year, now.hour, now.minute, now.second, temperature);
uart_putchars(buf, 50);
if(s == (alarm.second + 1))
{
rtc_clear_alarm_int();
}
}
}
}
/** Event handler for the library USB Control Request reception event. */
void EVENT_USB_Device_ControlRequest(void)
{
static uint8_t success = 1;
uint8_t bmRequestType = USB_ControlRequest.bmRequestType;
uint8_t bRequest = USB_ControlRequest.bRequest;
//uint8_t wValue = USB_ControlRequest.wValue;
char data[51];
HID_Device_ProcessControlRequest(&Keyboard_HID_Interface);
if (bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_VENDOR | REQREC_DEVICE))
{
char lock;
uint16_t wLength = USB_ControlRequest.wLength;
char pw[32];
success = 1; /* default */
eeprom_read(ADDR_LOCK, &lock, 1);
if(lock == 0 || lock == 255)
lock = 0;
else
{
if(bRequest != OPENKUBUS_GET_NONCE && bRequest != OPENKUBUS_SET_TIMESTAMP && bRequest != OPENKUBUS_RESET)
{
success = 0;
return;
}
}
// read data
if(wLength)
{
Endpoint_ClearSETUP();
Endpoint_Read_Control_Stream_LE(data, MIN(sizeof(data), wLength));
Endpoint_ClearIN();
}
switch(bRequest)
{
case OPENKUBUS_SET_LOCK:
lock = 1;
eeprom_write(ADDR_LOCK, &lock, 1);
break;
case OPENKUBUS_SET_OWNER:
if(wLength)
eeprom_write(ADDR_OWNER, data, wLength);
else
success = 0;
break;
case OPENKUBUS_SET_COMPANY:
if(wLength)
eeprom_write(ADDR_COMPANY, data, wLength);
else
success = 0;
break;
case OPENKUBUS_SET_DESCRIPTION:
if(wLength)
eeprom_write(ADDR_DESCRIPTION, data, wLength);
else
success = 0;
break;
case OPENKUBUS_SET_ID:
if(wLength == 4)
eeprom_write(ADDR_ID, data, wLength);
else
success = 0;
break;
case OPENKUBUS_SET_TIMESTAMP:
if(wLength == 16)
{
aes256_ctx_t ctx;
memset(&ctx, 0, sizeof(aes256_ctx_t));
eeprom_read(ADDR_SEED, pw, sizeof(pw));
aes256_init(pw, &ctx);
aes256_dec(data, &ctx);
if(strncmp(nonce, data, sizeof(nonce)) == 0)
{
set_timestamp(array2int((uint8_t *)&data[12]));
update_nonce();
}
else
success = 0;
}
else
success = 0;
break;
case OPENKUBUS_RESET:
if(wLength == 16)
{
aes256_ctx_t ctx;
memset(&ctx, 0, sizeof(aes256_ctx_t));
memcpy_P(pw, MASTER_PASSWORD, sizeof(pw));
aes256_init(pw, &ctx);
aes256_dec(data, &ctx);
if(strncmp(nonce, data, sizeof(nonce)) == 0)
{
clear_eeprom();
wdt_enable(WDTO_15MS);
while(1);
}
else
success = 0;
}
else
success = 0;
break;
case OPENKUBUS_SET_SEED:
if(wLength == LEN_SEED)
eeprom_write(ADDR_SEED, data, LEN_SEED);
else
success = 0;
break;
case OPENKUBUS_SET_COUNTER:
if(wLength == LEN_COUNTER)
eeprom_write(ADDR_COUNTER, data, LEN_COUNTER);
else
success = 0;
break;
default:
success = 0;
break;
}
}
else if (bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_VENDOR | REQREC_DEVICE))
{
uint8_t length = 0;
uint8_t i;
uint32_t temp32 = 0;
char c;
switch(bRequest)
{
case OPENKUBUS_GET_SUCCESS:
data[length++] = success;
break;
case OPENKUBUS_GET_NONCE:
for(i = 0; i < sizeof(nonce); i++)
data[length++] = nonce[i];
break;
case OPENKUBUS_GET_TEMPERATURE:
#ifdef RTC
data[length++] = rtc_get_temperature();
#else
data[length++] = 0xFF;
#endif
break;
case OPENKUBUS_GET_ID:
for(i = 0; i < LEN_ID; i++)
{
eeprom_read(ADDR_ID+i, &c, 1);
data[length++] = c;
}
break;
case OPENKUBUS_GET_TIME:
temp32 = get_timestamp();
data[length++] = temp32 >> 24;
data[length++] = temp32 >> 16;
data[length++] = temp32 >> 8;
data[length++] = temp32;
break;
case OPENKUBUS_GET_SERIAL:
for(i = 0x0e; i <= 0x18; i++)
data[length++] = boot_signature_byte_get(i);
break;
case OPENKUBUS_GET_DESCRIPTION:
for(i = 0; i < LEN_DESCRIPTION; i++)
{
eeprom_read(ADDR_DESCRIPTION+i, &c, 1);
data[length++] = c;
if(c == 0)
break;
}
break;
case OPENKUBUS_GET_COMPANY:
for(i = 0; i < LEN_COMPANY; i++)
{
eeprom_read(ADDR_COMPANY+i, &c, 1);
data[length++] = c;
if(c == 0)
break;
}
break;
case OPENKUBUS_GET_OWNER:
for(i = 0; i < LEN_OWNER; i++)
{
eeprom_read(ADDR_OWNER+i, &c, 1);
data[length++] = c;
if(c == 0)
break;
}
break;
default:
data[length++] = 0;
}
// send data
Endpoint_ClearSETUP();
Endpoint_Write_Control_Stream_LE(data, length);
Endpoint_ClearOUT();
}