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doubled signal length for half-wave TAP format at 2Mhz timer

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Peter Edwards
2015-04-18 16:30:37 +02:00
parent 55b3fa491c
commit d29a350a2d
1 changed files with 5 additions and 1 deletions
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tapuino.c
+5 -1
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@@ -188,7 +188,9 @@ ISR(TIMER1_COMPA_vect) {
if (g_tap_info.version != 2) {
g_pulse_length_save = g_pulse_length; // save this for the 2nd half of the wave
} else {
// read second half-wave for C16 / Plus4 format
// format 2 is half-wave and timer is running at 2Mhz so double
g_pulse_length <<= 1;
// now read second half-wave for C16 / Plus4 format
tap_data = (unsigned long) g_fat_buffer[g_read_index++];
g_tap_file_pos++;
if (tap_data != 0) {
@@ -199,6 +201,8 @@ ISR(TIMER1_COMPA_vect) {
g_pulse_length_save |= ((unsigned long) g_fat_buffer[g_read_index++]) << 16;
g_pulse_length_save *= CYCLE_MULT_RAW;
g_tap_file_pos += 3;
// format 2 is half-wave and timer is running at 2Mhz so double
g_pulse_length_save <<= 1;
}
}