static uint16_t sht_readw(void)
{
uint8_t i;
uint16_t r = 0;
sda_input();
for(i = 0; i < 8; i++) {
scl_high();
r |= sda_get()?(1<<i):0;
scl_low();
}
sda_output();
sda_set(0);
scl_high();
scl_low();
sda_input();
for(i = 8; i < 16; i++) {
scl_high();
r |= sda_get()?(1<<i):0;
scl_low();
}
return r;
}
static void sht_sendb(uint8_t cmd)
{
uint8_t i;
sda_output();
for(i = 0; i < 8; i++) {
scl_low();
sda_set((cmd>>i)&1);
scl_high();
}
scl_low();
sda_input();
printf("foo!\n");
while(sda_get());
scl_high();
scl_low();
printf("bar!\n");
while(!sda_get());
printf("bla!\n");
i = 0;
while(sda_get()) {
i++;
if(i == 255) break;
usleep(10*1000);
}
}
//------------------------------------------------------------------------
static unsigned int i2c_write_byte ( unsigned int b )
{
unsigned int ra;
for(ra=0x80;ra;ra>>=1)
{
i2c_delay();
if(ra&b) sda_high();
else sda_low();
i2c_delay();
scl_high();
i2c_delay();
scl_low();
i2c_delay();
sda_low();
i2c_delay();
}
i2c_delay();
sda_input();
i2c_delay();
scl_high();
i2c_delay();
ra=sda_read();
i2c_delay();
scl_low();
i2c_delay();
sda_output();
i2c_delay();
return(ra);
}
void sht_start(void)
{
sda_output();
sda_set(0);
scl_low();
scl_high();
sda_set(1);
scl_low();
}
