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initial commit to be in sync the-soon-defunct repo pm3rdv40.

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This commit is contained in:
Chris 2018-08-12 21:54:31 +02:00
commit 5f77121694
34 changed files with 709 additions and 508 deletions
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13
armsrc/lfsampling.c
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@ -399,8 +399,9 @@ uint32_t doCotagAcquisitionManchester() {
uint8_t sample = 0, firsthigh = 0, firstlow = 0;
uint16_t sample_counter = 0, period = 0;
uint8_t curr = 0, prev = 0;
uint16_t noise_counter = 0;
while (!BUTTON_PRESS() && !usb_poll_validate_length() && (sample_counter < bufsize) ) {
while (!BUTTON_PRESS() && !usb_poll_validate_length() && (sample_counter < bufsize) && (noise_counter < (COTAG_T1 << 1)) ) {
WDT_HIT();
if (AT91C_BASE_SSC->SSC_SR & AT91C_SSC_TXRDY) {
AT91C_BASE_SSC->SSC_THR = 0x43;
@ -413,14 +414,20 @@ uint32_t doCotagAcquisitionManchester() {
// find first peak
if ( !firsthigh ) {
if (sample < COTAG_ONE_THRESHOLD)
if (sample < COTAG_ONE_THRESHOLD) {
noise_counter++;
continue;
}
noise_counter = 0;
firsthigh = 1;
}
if ( !firstlow ){
if (sample > COTAG_ZERO_THRESHOLD )
if (sample > COTAG_ZERO_THRESHOLD ) {
noise_counter++;
continue;
}
noise_counter = 0;
firstlow = 1;
}