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add - continuously measure LF antenna

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This commit is contained in:
iceman1001 2019-09-24 13:06:43 +02:00
commit b2c24c8010
3 changed files with 94 additions and 1 deletions
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38
armsrc/appmain.c
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@ -206,8 +206,9 @@ void MeasureAntennaTuning(void) {
LEDsoff();
}
// Measure HF in miliVolt
uint16_t MeasureAntennaTuningHfData(void) {
uint16_t volt = 0; // in mV
uint16_t volt = 0;
uint16_t avg = AvgAdc(ADC_CHAN_HF);
volt = (MAX_ADC_HF_VOLTAGE * avg) >> 10;
bool use_high = (volt > MAX_ADC_HF_VOLTAGE - 300);
@ -219,6 +220,11 @@ uint16_t MeasureAntennaTuningHfData(void) {
return volt;
}
// Measure LF in miliVolt
uint32_t MeasureAntennaTuningLfData(void) {
return (MAX_ADC_LF_VOLTAGE * AvgAdc(ADC_CHAN_LF)) >> 10;
}
void ReadMem(int addr) {
const uint8_t *data = ((uint8_t *)addr);
@ -1415,6 +1421,7 @@ static void PacketReceived(PacketCommandNG *packet) {
case CMD_MEASURE_ANTENNA_TUNING_HF: {
if (packet->length != 1)
reply_ng(CMD_MEASURE_ANTENNA_TUNING_HF, PM3_EINVARG, NULL, 0);
switch (packet->data.asBytes[0]) {
case 1: // MEASURE_ANTENNA_TUNING_HF_START
// Let the FPGA drive the high-frequency antenna around 13.56 MHz.
@ -1438,6 +1445,35 @@ static void PacketReceived(PacketCommandNG *packet) {
}
break;
}
case CMD_MEASURE_ANTENNA_TUNING_LF: {
if (packet->length != 1)
reply_ng(CMD_MEASURE_ANTENNA_TUNING_LF, PM3_EINVARG, NULL, 0);
switch (packet->data.asBytes[0]) {
case 1: // MEASURE_ANTENNA_TUNING_LF_START
// Let the FPGA drive the low-frequency antenna around 125Khz
FpgaDownloadAndGo(FPGA_BITSTREAM_LF);
FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
FpgaSendCommand(FPGA_CMD_SET_DIVISOR, 95);
reply_ng(CMD_MEASURE_ANTENNA_TUNING_LF, PM3_SUCCESS, NULL, 0);
break;
case 2:
if (button_status == BUTTON_SINGLE_CLICK)
reply_ng(CMD_MEASURE_ANTENNA_TUNING_LF, PM3_EOPABORTED, NULL, 0);
uint32_t volt = MeasureAntennaTuningLfData();
reply_ng(CMD_MEASURE_ANTENNA_TUNING_LF, PM3_SUCCESS, (uint8_t *)&volt, sizeof(volt));
break;
case 3:
FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
reply_ng(CMD_MEASURE_ANTENNA_TUNING_LF, PM3_SUCCESS, NULL, 0);
break;
default:
reply_ng(CMD_MEASURE_ANTENNA_TUNING_LF, PM3_EINVARG, NULL, 0);
break;
}
break;
}
case CMD_LISTEN_READER_FIELD: {
if (packet->length != sizeof(uint8_t))
break;