void ICACHE_FLASH_ATTR twi_init(uint8_t pin_sda, uint8_t pin_scl)
{
twi_sda = pin_sda;
twi_scl = pin_scl;
pinMode(twi_sda, INPUT_PULLUP);
pinMode(twi_scl, INPUT_PULLUP);
twi_setClock(100000);
twi_setClockStretchLimit(230); // default value is 230 uS
}
void twi_init(unsigned char sda, unsigned char scl)
{
// set timer function
ets_timer_setfn(&timer, onTimer, NULL);
// create event task
ets_task(eventTask, EVENTTASK_QUEUE_PRIO, eventTaskQueue, EVENTTASK_QUEUE_SIZE);
twi_sda = sda;
twi_scl = scl;
pinMode(twi_sda, INPUT_PULLUP);
pinMode(twi_scl, INPUT_PULLUP);
twi_setClock(preferred_si2c_clock);
twi_setClockStretchLimit(230); // default value is 230 uS
if (twi_addr != 0)
{
attachInterrupt(scl, onSclChange, CHANGE);
attachInterrupt(sda, onSdaChange, CHANGE);
}
}
void ICACHE_FLASH_ATTR wire_setClock(uint32_t clk)
{
twi_setClock(clk);
}
void TwoWire::setClock(uint32_t frequency){
twi_setClock(frequency);
}