void DS1302_write(int address, uint8_t data)
{
// clear lowest bit (read bit) in address
bitClear(address, DS1302_READBIT);
_DS1302_start();
_DS1302_togglewrite(address, false);
_DS1302_togglewrite(data, false);
_DS1302_stop();
}
uint8_t DS1302_read(int address)
{
uint8_t data;
bitSet(address, DS1302_READBIT);
_DS1302_start();
_DS1302_togglewrite(address, true);
data = _DS1302_toggleread();
_DS1302_stop();
return (data);
}
void DS1302_clock_burst_read(uint8_t *p)
{
int i;
_DS1302_start();
_DS1302_togglewrite(DS1302_CLOCK_BURST_READ, true);
for (i = 0; i<8; i++)
{
*p++ = _DS1302_toggleread();
}
_DS1302_stop();
}
void DS1302_clock_burst_write(uint8_t *p)
{
int i;
_DS1302_start();
_DS1302_togglewrite(DS1302_CLOCK_BURST_WRITE, false);
for (i = 0; i<8; i++)
{
_DS1302_togglewrite(*p++, false);
}
_DS1302_stop();
}
// --------------------------------------------------------
// DS1302_read
//
// This function reads a byte from the DS1302
// (clock or ram).
//
// The address could be like "0x80" or "0x81",
// the lowest bit is set anyway.
//
// This function may be called as the first function,
// also the pinMode is set.
//
uint8_t DS1302_read(int address)
{
uint8_t data;
// set lowest bit (read bit) in address
bitSet( address, DS1302_READBIT);
_DS1302_start();
// the I/O-line is released for the data
_DS1302_togglewrite( address, true);
data = _DS1302_toggleread();
_DS1302_stop();
return (data);
}
// --------------------------------------------------------
// DS1302_clock_burst_read
//
// This function reads 8 bytes clock data in burst mode
// from the DS1302.
//
// This function may be called as the first function,
// also the pinMode is set.
//
void DS1302_clock_burst_read( uint8_t *p)
{
int i;
_DS1302_start();
// Instead of the address,
// the CLOCK_BURST_READ command is issued
// the I/O-line is released for the data
_DS1302_togglewrite( DS1302_CLOCK_BURST_READ, true);
for( i=0; i<8; i++)
{
*p++ = _DS1302_toggleread();
}
_DS1302_stop();
}
// --------------------------------------------------------
// DS1302_clock_burst_write
//
// This function writes 8 bytes clock data in burst mode
// to the DS1302.
//
// This function may be called as the first function,
// also the pinMode is set.
//
void DS1302_clock_burst_write( uint8_t *p)
{
int i;
_DS1302_start();
// Instead of the address,
// the CLOCK_BURST_WRITE command is issued.
// the I/O-line is not released
_DS1302_togglewrite( DS1302_CLOCK_BURST_WRITE, false);
for( i=0; i<8; i++)
{
// the I/O-line is not released
_DS1302_togglewrite( *p++, false);
}
_DS1302_stop();
}
