Revision 399f7d1b scout_avr/src/bom.cpp

View differences:

scout_avr/src/bom.cpp
152 152
  if (is_rising) {
153 153
    // TODO check 320us? or have 320us timeout on rising edge?
154 154
  } else {
155
    // uses timer 5, assuming prescale 1/8
155
    // uses timer 5, assuming prescale 1/64
156 156
    // timer 5 is set up by range_init()
157
    // this should be in units of microseconds
158
    int now = TCNT5 / (F_CPU / 8 / 1000000);
157
    int now = TCNT5;
158
    int min_low = TIME_MICROS(MIN_LOW_PW, 64);
159
    int max_low = TIME_MICROS(MAX_LOW_PW, 64);
160
    int min_high = TIME_MICROS(MIN_HIGH_PW, 64);
161
    int max_high = TIME_MICROS(MAX_HIGH_PW, 64);
159 162
    
160 163
    if (rx->count) {
161
      int diff = now - rx->last_time;
164
      int diff = (now - rx->last_time);
162 165
      rx->bits <<= 1;
163
      if (MIN_LOW_PW < diff && diff < MAX_LOW_PW) {
166
      if (min_low < diff && diff < max_low) {
164 167
        // 0 already in bits
165
      } else if (MIN_HIGH_PW < diff && diff < MAX_HIGH_PW) {
168
      } else if (min_high < diff && diff < max_high) {
166 169
        // add 1 to bits
167 170
        rx->bits |= 1;
168 171
      } else {

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