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Added hitune command for continuously measuring HF antenna tuning

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This commit is contained in:
daniel.boteanu 2010-01-09 14:59:42 +00:00
parent 8b576d2d31
commit 1eb7596aad
4 changed files with 36 additions and 2 deletions
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25
armsrc/appmain.c
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@ -202,6 +202,27 @@ void MeasureAntennaTuning(void)
UsbSendPacket((BYTE *)&c, sizeof(c));
}
void MeasureAntennaTuningHf(void)
{
int vHf = 0; // in mV
DbpString("Measuring HF antenna characteristics, press button to exit");
for (;;) {
// Let the FPGA drive the high-frequency antenna around 13.56 MHz.
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_READER_RX_XCORR);
SpinDelay(20);
// Vref = 3300mV, and an 10:1 voltage divider on the input
// can measure voltages up to 33000 mV
vHf = (33000 * AvgAdc(ADC_CHAN_HF)) >> 10;
Dbprintf("%d mV",vHf);
if (BUTTON_PRESS()) break;
}
DbpString("cancelled");
}
void SimulateTagHfListen(void)
{
BYTE *dest = (BYTE *)BigBuf;
@ -643,6 +664,10 @@ void UsbPacketReceived(BYTE *packet, int len)
MeasureAntennaTuning();
break;
case CMD_MEASURE_ANTENNA_TUNING_HF:
MeasureAntennaTuningHf();
break;
case CMD_LISTEN_READER_FIELD:
ListenReaderField(c->arg[0]);
break;

7
client/command.c
View file

@ -93,6 +93,12 @@ static void CmdTune(char *str)
SendCommand(&c);
}
static void CmdHiTune(char *str)
{
UsbCommand c={CMD_MEASURE_ANTENNA_TUNING_HF};
SendCommand(&c);
}
static void CmdHi15read(char *str)
{
UsbCommand c={CMD_ACQUIRE_RAW_ADC_SAMPLES_ISO_15693};
@ -2825,6 +2831,7 @@ static struct {
/* low-level hardware control */
{"fpgaoff", CmdFPGAOff, 0, "Set FPGA off"},
{"tune", CmdTune, 0, "Measure antenna tuning"},
{"hitune", CmdHiTune, 0, "Continuously measure HF antenna tuning"},
{"readmem", CmdReadmem, 0, "[address] -- Read memory at decimal address from flash"},
{"reset", CmdReset, 0, "Reset the Proxmark3"},
{"setlfdivisor", CmdSetDivisor, 0, "<19 - 255> -- Drive LF antenna at 12Mhz/(divisor+1)"},

1
client/prox.h
View file

@ -44,6 +44,7 @@ int GetClock(char *str, int peak);
static void CmdHIDdemodFSK(char *str);
static void Cmdmanchestermod(char *str);
static void CmdTune(char *str);
static void CmdHiTune(char *str);
static void CmdHi15read(char *str);
static void CmdHi14read(char *str);
static void CmdSri512read(char *str);

5
include/usb_cmd.h
View file

@ -84,8 +84,9 @@ typedef struct {
// For measurements of the antenna tuning
#define CMD_MEASURE_ANTENNA_TUNING 0x0400
#define CMD_MEASURED_ANTENNA_TUNING 0x0401
#define CMD_LISTEN_READER_FIELD 0x0402
#define CMD_MEASURE_ANTENNA_TUNING_HF 0x0401
#define CMD_MEASURED_ANTENNA_TUNING 0x0410
#define CMD_LISTEN_READER_FIELD 0x0420
// For direct FPGA control
#define CMD_FPGA_MAJOR_MODE_OFF 0x0500