/* on_off_display(on_off)
* Turns on the display if on_off is true and turns it off if on_off = 0
*/
void on_off_display(unsigned char on_off)
{
if(on_off)
I2C_write_byte(HT16K33_SLA, HT16K33_DISPLAY_SETUP | HT16K33_DISPLAY_ON);
else
I2C_write_byte(HT16K33_SLA, HT16K33_DISPLAY_SETUP | HT16K33_DISPLAY_OFF);
}
void hts_init() {
uint8_t callib_regs[HTS_CALLIB_REGS_NUM];
/* Set PD bits (set device active) and BDU bits (data registers
actualization only after previous were read) */
I2C_write_byte(SLA_HTS_WR, HTS_CTRL_REG1, HTS_PD | HTS_BDU);
// Measurement precision possibly the best
I2C_write_byte(SLA_HTS_WR, HTS_AV_CONF,
HTS_SET_HUM_OVRSMPL(HTS_OVRSMPL_H512) | HTS_SET_TEMP_OVRSMPL(HTS_OVRSMPL_T256));
// Callibration registers reading.
I2C_read_bytes(SLA_HTS_WR, HTS_CALLIB_REGS | HTS_AUTOINCREMENT,
HTS_CALLIB_REGS_NUM, callib_regs);
// Mapping callibration registers on variables.
H0_rH_x2 = callib_regs[0];
H1_rH_x2 = callib_regs[1];
T0_degC_x8 = callib_regs[2] | ((((uint16_t)callib_regs[5]) & 0x03) << 8);
T1_degC_x8 = callib_regs[3] | ((((uint16_t)callib_regs[5]) & 0x0C) << 6);
H0_T0_out = callib_regs[6] | (((uint16_t)callib_regs[7]) << 8);
H1_T0_out = callib_regs[10] | (((uint16_t)callib_regs[11]) << 8);
T0_out = callib_regs[12] | (((uint16_t)callib_regs[13]) << 8);
T1_out = callib_regs[14] | (((uint16_t)callib_regs[15]) << 8);
}
/* LED_init()
*
*/
void LED_init(void)
{
// Turn on internal oscillator
I2C_write_byte(HT16K33_SLA, HT16K33_OSCILLATOR_ON);
// Turn on display
I2C_write_byte(HT16K33_SLA, HT16K33_DISPLAY_SETUP | HT16K33_DISPLAY_ON);
// Brightness maximum
I2C_write_byte(HT16K33_SLA, HT16K33_DIMMING_SET(15));
}
/* blink_display(blink)
* Sets the blinking frequency according to the parameter "blink"
* 0 -> No blinking
* 1 -> 2Hz blinking (2 blinks per second)
* 2 -> 1Hz blinking (1 blink per second)
* 3 -> .5Hz blinking (1 blink every two seconds)
*/
void blink_display(unsigned char blink)
{
if(blink > 3)
blink = 3;
I2C_write_byte(HT16K33_SLA, HT16K33_DISPLAY_SETUP | HT16K33_DISPLAY_BLINK(blink) | HT16K33_DISPLAY_ON);
}
/* dim_display(dimming)
* Takes a value (dimming) from 0 to 15 and sets the corresponding brightness
* with 0 being the dimmest and 15 the brightest
*/
void dim_display(unsigned char dimming)
{
if(dimming > 15)
dimming = 15;
I2C_write_byte(HT16K33_SLA, HT16K33_DIMMING_SET(dimming));
}
void t_hts_dep_meas() {
I2C_write_byte(SLA_HTS_WR, HTS_CTRL_REG2, HTS_ONE_SHOT);
}
