ESP32 Forum

Code: Select all

{1 high, 0 low}
{1 high, 0 low}
{1 high, 0 low}
{0 high, 1 low}
{1 high, 0 low}
{0 high, 1 low}
{0 high, 1 low}

Code: Select all

   // I set rx resolution to make rmt_symbols[i].duration = signal_level_duration * number_of_sent_bits by resolution_hz at rmt_rx_channel_config 
   // In my case I receive 1 bit per 2µs so resolution_hz is 500 000 Hz

    uint32_t pos = 24; // We receiving 24 bit word
    uint32_t result = 0b00000000111111111111111111111111; // Set all bits to 1
    
    // Loop over all symbols except last because it never reach low level, closed by timeout and has wrong durations
    for (size_t i = 0; i < symbol_num - 1; i++) {
    	// Shift insert position by whole symbol length
        pos -= rmt_symbols[i].duration0 + rmt_symbols[i].duration1;
        // Set number of bits equal to length of low level duration to zero at position
        result ^= ((1U << rmt_symbols[i].duration1) - 1) << pos;
    }