void eeprom_write(const void* sram_src, uint16_t eeaddr, uint16_t size)
{
uint8_t _t;
uint8_t *src = (uint8_t*)sram_src;
do
{
_t=_SAVE_INTERRUPT();
_DISABLE_INTERRUPT();
__EEPUT(eeaddr, *src);
_RESTORE_INTERRUPT(_t);
wdt_reset_timer();
eeaddr++;
src++;
}while(--size);
EEAR=0x000; //this will help to prevent corruption of EEPROM
}
void eeprom_write_P(void _PGM *pgm_src, uint16_t eeaddr, uint16_t size)
{
uint8_t _t;
uint8_t _PGM *src = (uint8_t _PGM*)pgm_src;
do
{
uint8_t byte = PGM_GET_BYTE(src);
_t=_SAVE_INTERRUPT();
_DISABLE_INTERRUPT();
__EEPUT(eeaddr, byte);
_RESTORE_INTERRUPT(_t);
wdt_reset_timer();
eeaddr++;
src++;
}while(--size);
EEAR=0x000; //this will help to prevent corruption of EEPROM
}
/*****************************************************************************
*
* Function name : RS232
*
* Returns : char ST_state (to the state-machine)
*
* Parameters : char input (from joystick)
*
* Purpose : Store data from the UART to EEPROM
*
*****************************************************************************/
char RS232(char input)
{
static char enter = 1;
char c;
static char buffer[STRLENGHT];
static char temp_index;
if (enter)
{
__disable_interrupt();
// boost IntRC to 2Mhz to achieve 19200 baudrate
CLKPR = (1<<CLKPCE); // set Clock Prescaler Change Enable
// set prescaler = 4, Inter RC 8Mhz / 4 = 2Mhz
CLKPR = (1<<CLKPS1);
__enable_interrupt();
LCD_puts_f(TEXT_WAIT, 0);
enter = 0;
temp_index = 0;
c = UDR0; // Dummy read to clear receive buffer
gUART = TRUE;
}
if (UCSR0A & (1<<RXC0))
{
c = UDR0;
if (c != '\r')
{
if (temp_index < STRLENGHT)
buffer[temp_index++] = c;
}
else // UART transmission completed
{
__disable_interrupt();
CLKPR = (1<<CLKPCE); // set Clock Prescaler Change Enable
// set prescaler = 8, Inter RC 8Mhz / 8 = 1Mhz
CLKPR = (1<<CLKPS1) | (1<<CLKPS0);
__enable_interrupt();
if(temp_index)
{
buffer[temp_index] = '\0';
for (temp_index = 0; buffer[temp_index]; temp_index++)
Name[temp_index] = buffer[temp_index];
Name[temp_index] = '\0';
enter = 1;
__EEPUT(EEPROM_START, temp_index); //store the length of name in EEPROM
StoreEEPROM(Name, temp_index, EEPROM_START + 1); //store the Name in EEPROM
index = temp_index;
gUART = FALSE;
return ST_VCARD_FUNC;
}
else // if no characters received
{
enter = 1;
return ST_VCARD_DOWNLOAD_NAME;
}
}
}
if (input != KEY_NULL)
{
enter = 1;
__disable_interrupt();
CLKPR = (1<<CLKPCE); // set Clock Prescaler Change Enable
// set prescaler = 8, Inter RC 8Mhz / 8 = 1Mhz
CLKPR = (1<<CLKPS1) | (1<<CLKPS0);
__enable_interrupt();
gUART = FALSE;
return ST_VCARD_DOWNLOAD_NAME;
}
return ST_VCARD_DOWNLOAD_NAME_FUNC;
}
/*****************************************************************************
*
* Function name : EnterName
*
* Returns : char ST_state (to the state-machine)
*
* Parameters : char input (from joystick)
*
* Purpose : Lets the user enter a name using the joystick. Pressing the
* joystick UP/DOWN will browse the alphabet and NEXT/PREV
* will shift between the characters in the name.
*
*****************************************************************************/
char EnterName(char input)
{
static char enter = 1;
static char temp_index = 0;
static char temp_name[6];
char i;
if (enter)
{
LoadEEPROM(Name, index, EEPROM_START + 1); // Load name from EEPROM
if(index)
index -= 1; //make the last character in name blink
enter = 0;
}
else
{
temp_index = index;
for(i = 5; (i != 255); i--, temp_index--)
{
if ((Name[temp_index] >= ' ') && (Name[temp_index] <= 'z') && (temp_index != 255)) //check if it's legal character
temp_name[i] = Name[temp_index];
else
temp_name[i] = ' '; // if not, put in a space
}
LCD_putc(0, temp_name[0]);
LCD_putc(1, temp_name[1]);
LCD_putc(2, temp_name[2]);
LCD_putc(3, temp_name[3]);
LCD_putc(4, temp_name[4]);
LCD_putc(5, temp_name[5] | 0x80); //Make this digit blink
LCD_putc(6, '\0');
if (input != KEY_NULL)
LCD_FlashReset();
LCD_UpdateRequired(TRUE, 0);
}
if (input != KEY_NULL)
LCD_FlashReset();
if (input == KEY_PLUS)
{
Name[index]--;
if( (('!' <= Name[index]) && (Name[index] <= '/')) && (Name[index] != ' '))
Name[index] = ' ';
else if( (':' <= Name[index]) && (Name[index] <= '@'))
Name[index] = '9';
else if(Name[index] >= '[')
Name[index] = 'Z';
else if(Name[index] < ' ')
Name[index] = 'Z';
}
else if (input == KEY_MINUS)
{
Name[index]++;
if( (('!' <= Name[index]) && (Name[index] <= '/')) && (Name[index] != ' '))
Name[index] = '0';
else if( (':' <= Name[index]) && (Name[index] <= '@'))
Name[index] = 'A';
else if(Name[index] >= '[')
Name[index] = ' ';
else if(Name[index] < ' ')
Name[index] = ' ';
}
else if (input == KEY_PREV)
{
if(index)
{
index--;
}
}
else if (input == KEY_NEXT)
{
if(index < STRLENGHT)
{
index++;
Name[index] = 'A';
}
}
else if (input == KEY_ENTER)
{
index++;
Name[index] = '\0';
__EEPUT(EEPROM_START, index); //store the length of name in EEPROM
StoreEEPROM(Name, index, EEPROM_START + 1); //store the Name in EEPROM
enter = 1;
return ST_VCARD_FUNC;
}
return ST_VCARD_ENTER_NAME_FUNC;
}
void eeprom_putchar(int addr, char data)
{
__EEPUT(addr,data);
}
