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fix: 'hw detectreader' - adapted to PM3 RDV40 for HF measures.

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This commit is contained in:
iceman1001 2018-03-15 09:20:21 +01:00
commit 62814fd352
1 changed files with 17 additions and 9 deletions
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24
armsrc/appmain.c
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@ -194,6 +194,7 @@ uint16_t AvgAdc(int ch) {
for(uint8_t i = 0; i < 32; i++) for(uint8_t i = 0; i < 32; i++)
a += ReadAdc(ch); a += ReadAdc(ch);
//division by 32
return (a + 15) >> 5; return (a + 15) >> 5;
} }
@ -469,11 +470,12 @@ void ListenReaderField(int limit) {
#define HF_ONLY 2 #define HF_ONLY 2
#define REPORT_CHANGE 10 // report new values only if they have changed at least by REPORT_CHANGE #define REPORT_CHANGE 10 // report new values only if they have changed at least by REPORT_CHANGE
int lf_av, lf_av_new, lf_baseline= 0, lf_max; uint16_t lf_av, lf_av_new, lf_baseline = 0, lf_max;
int hf_av, hf_av_new, hf_baseline= 0, hf_max; uint16_t hf_av, hf_av_new, hf_baseline = 0, hf_max;
int mode=1, display_val, display_max, i; uint16_t mode = 1, display_val, display_max, i;
// switch off FPGA - we don't want to measure our own signal // switch off FPGA - we don't want to measure our own signal
// 20180315 - iceman, why load this before and then turn off?
FpgaDownloadAndGo(FPGA_BITSTREAM_HF); FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
@ -481,12 +483,16 @@ void ListenReaderField(int limit) {
lf_av = lf_max = AvgAdc(ADC_CHAN_LF); lf_av = lf_max = AvgAdc(ADC_CHAN_LF);
if(limit != HF_ONLY) { if (limit != HF_ONLY) {
Dbprintf("LF 125/134kHz Baseline: %dmV", (MAX_ADC_LF_VOLTAGE * lf_av) >> 10); Dbprintf("LF 125/134kHz Baseline: %dmV", (MAX_ADC_LF_VOLTAGE * lf_av) >> 10);
lf_baseline = lf_av; lf_baseline = lf_av;
} }
hf_av = hf_max = AvgAdc(ADC_CHAN_HF); hf_av = hf_max = AvgAdc(ADC_CHAN_HF);
bool use_high = ( hf_max > MAX_ADC_HF_VOLTAGE-300 );
if ( use_high ) {
hf_av = hf_max = AvgAdc(ADC_CHAN_HF_RDV40);
}
if (limit != LF_ONLY) { if (limit != LF_ONLY) {
Dbprintf("HF 13.56MHz Baseline: %dmV", (MAX_ADC_HF_VOLTAGE * hf_av) >> 10); Dbprintf("HF 13.56MHz Baseline: %dmV", (MAX_ADC_HF_VOLTAGE * hf_av) >> 10);
@ -494,11 +500,12 @@ void ListenReaderField(int limit) {
} }
for(;;) { for(;;) {
// Switch modes with button
if (BUTTON_PRESS()) { if (BUTTON_PRESS()) {
SpinDelay(500); SpinDelay(500);
switch (mode) { switch (mode) {
case 1: case 1:
mode=2; mode = 2;
DbpString("Signal Strength Mode"); DbpString("Signal Strength Mode");
break; break;
case 2: case 2:
@ -521,7 +528,7 @@ void ListenReaderField(int limit) {
lf_av_new = AvgAdc(ADC_CHAN_LF); lf_av_new = AvgAdc(ADC_CHAN_LF);
// see if there's a significant change // see if there's a significant change
if(ABS(lf_av - lf_av_new) > REPORT_CHANGE) { if (ABS(lf_av - lf_av_new) > REPORT_CHANGE) {
Dbprintf("LF 125/134kHz Field Change: %5dmV", (MAX_ADC_LF_VOLTAGE * lf_av_new) >> 10); Dbprintf("LF 125/134kHz Field Change: %5dmV", (MAX_ADC_LF_VOLTAGE * lf_av_new) >> 10);
lf_av = lf_av_new; lf_av = lf_av_new;
if (lf_av > lf_max) if (lf_av > lf_max)
@ -537,7 +544,8 @@ void ListenReaderField(int limit) {
LED_B_OFF(); LED_B_OFF();
} }
hf_av_new = AvgAdc(ADC_CHAN_HF); hf_av_new = (use_high) ? AvgAdc(ADC_CHAN_HF_RDV40) : AvgAdc(ADC_CHAN_HF);
// see if there's a significant change // see if there's a significant change
if(ABS(hf_av - hf_av_new) > REPORT_CHANGE) { if(ABS(hf_av - hf_av_new) > REPORT_CHANGE) {
Dbprintf("HF 13.56MHz Field Change: %5dmV", (MAX_ADC_HF_VOLTAGE * hf_av_new) >> 10); Dbprintf("HF 13.56MHz Field Change: %5dmV", (MAX_ADC_HF_VOLTAGE * hf_av_new) >> 10);
@ -547,7 +555,7 @@ void ListenReaderField(int limit) {
} }
} }
if(mode == 2) { if (mode == 2) {
if (limit == LF_ONLY) { if (limit == LF_ONLY) {
display_val = lf_av; display_val = lf_av;
display_max = lf_max; display_max = lf_max;