X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/b97311b1bde85d0aa388085e9a5747ac4da680d5..82e8eee62d2f3b3ca90ef155ed2c1e90c9093799:/armsrc/lfops.c?ds=sidebyside

diff --git a/armsrc/lfops.c b/armsrc/lfops.c
index 35cf90ca..566ba1d4 100644
--- a/armsrc/lfops.c
+++ b/armsrc/lfops.c
@@ -72,7 +72,7 @@ void ModThenAcquireRawAdcSamples125k(uint32_t delay_off, uint32_t period_0, uint
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_LF_ADC | FPGA_LF_ADC_READER_FIELD);
 
 	// now do the read
-	DoAcquisition_config(false);
+	DoAcquisition_config(false, 0);
 }
 
 /* blank r/w tag data stream
@@ -769,6 +769,7 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
 	size_t size; 
 	uint32_t hi2=0, hi=0, lo=0;
 	int idx=0;
+	int dummyIdx = 0;
 	// Configure to go in 125Khz listen mode
 	LFSetupFPGAForADC(95, true);
 
@@ -784,7 +785,7 @@ void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
 		// FSK demodulator
 		//size = sizeOfBigBuff;  //variable size will change after demod so re initialize it before use
 		size = 50*128*2; //big enough to catch 2 sequences of largest format
-		idx = HIDdemodFSK(dest, &size, &hi2, &hi, &lo);
+		idx = HIDdemodFSK(dest, &size, &hi2, &hi, &lo, &dummyIdx);
 		
 		if (idx>0 && lo>0 && (size==96 || size==192)){
 			// go over previously decoded manchester data and decode into usable tag ID
@@ -861,7 +862,7 @@ void CmdAWIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
 {
 	uint8_t *dest = BigBuf_get_addr();
 	size_t size; 
-	int idx=0;
+	int idx=0, dummyIdx=0;
 	//clear read buffer
 	BigBuf_Clear_keep_EM();
 	// Configure to go in 125Khz listen mode
@@ -875,7 +876,7 @@ void CmdAWIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
 		DoAcquisition_default(-1,true);
 		// FSK demodulator
 		size = 50*128*2; //big enough to catch 2 sequences of largest format
-		idx = AWIDdemodFSK(dest, &size);
+		idx = AWIDdemodFSK(dest, &size, &dummyIdx);
 		
 		if (idx<=0 || size!=96) continue;
 		// Index map
@@ -1017,6 +1018,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
 	uint8_t version=0;
 	uint8_t facilitycode=0;
 	uint16_t number=0;
+	int dummyIdx=0;
 	//clear read buffer
 	BigBuf_Clear_keep_EM();
 	// Configure to go in 125Khz listen mode
@@ -1028,7 +1030,7 @@ void CmdIOdemodFSK(int findone, int *high, int *low, int ledcontrol)
 		DoAcquisition_default(-1,true);
 		//fskdemod and get start index
 		WDT_HIT();
-		idx = IOdemodFSK(dest, BigBuf_max_traceLen());
+		idx = IOdemodFSK(dest, BigBuf_max_traceLen(), &dummyIdx);
 		if (idx<0) continue;
 		//valid tag found
 
@@ -1132,7 +1134,7 @@ void T55xxResetRead(void) {
 	TurnReadLFOn(READ_GAP);
 
 	// Acquisition
-	doT55x7Acquisition(BigBuf_max_traceLen());
+	DoPartialAcquisition(0, true, BigBuf_max_traceLen());
 
 	// Turn the field off
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
@@ -1161,7 +1163,8 @@ void T55xxWriteBlockExt(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg
 	// Std Opcode 10
 	T55xxWriteBit(testMode ? 0 : 1);
 	T55xxWriteBit(testMode ? 1 : Page); //Page 0
-	if (PwdMode){
+
+	if (PwdMode) {
 		// Send Pwd
 		for (i = 0x80000000; i != 0; i >>= 1)
 			T55xxWriteBit(Pwd & i);
@@ -1181,22 +1184,19 @@ void T55xxWriteBlockExt(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg
 	// so wait a little more)
 
 	// "there is a clock delay before programming" 
-	//  - programming takes ~5.6ms for t5577 ~18ms for E5550
+	//  - programming takes ~5.6ms for t5577 ~18ms for E5550 or t5567
 	//  so we should wait 1 clock + 5.6ms then read response? 
-	//  but we need to know we are dealing with t55x7 vs e5550 (or q5) marshmellow...
+	//  but we need to know we are dealing with t5577 vs t5567 vs e5550 (or q5) marshmellow...
 	if (testMode) {
-		// Turn field on to read the response
-		TurnReadLFOn(READ_GAP);
-
-		// Acquisition
-		// Now do the acquisition
-		// Now do the acquisition
-		DoPartialAcquisition(20, true, 12000);
+		//TESTMODE TIMING TESTS: 
+		// <566us does nothing 
+		// 566-568 switches between wiping to 0s and doing nothing
+		// 5184 wipes and allows 1 block to be programmed.
+		// indefinite power on wipes and then programs all blocks with bitshifted data sent.
+		TurnReadLFOn(5184); 
 
-		//doT55x7Acquisition(12000);
 	} else {
 		TurnReadLFOn(20 * 1000);
-	}
 		//could attempt to do a read to confirm write took
 		// as the tag should repeat back the new block 
 		// until it is reset, but to confirm it we would 
@@ -1205,6 +1205,9 @@ void T55xxWriteBlockExt(uint32_t Data, uint32_t Block, uint32_t Pwd, uint8_t arg
 		// response should be (for t55x7) a 0 bit then (ST if on) 
 		// block data written in on repeat until reset. 
 
+		//DoPartialAcquisition(20, true, 12000);
+	}
+
 	// turn field off
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF);
 	LED_A_OFF();
@@ -1222,7 +1225,7 @@ void T55xxReadBlock(uint16_t arg0, uint8_t Block, uint32_t Pwd) {
 	bool PwdMode = arg0 & 0x1;
 	uint8_t Page = (arg0 & 0x2) >> 1;
 	uint32_t i = 0;
-	bool RegReadMode = (Block == 0xFF);
+	bool RegReadMode = (Block == 0xFF);//regular read mode
 
 	//clear buffer now so it does not interfere with timing later
 	BigBuf_Clear_ext(false);
@@ -1257,14 +1260,14 @@ void T55xxReadBlock(uint16_t arg0, uint8_t Block, uint32_t Pwd) {
 			T55xxWriteBit(Block & i);		
 
 	// Turn field on to read the response
-	TurnReadLFOn(135*8);
+	// 137*8 seems to get to the start of data pretty well... 
+	//  but we want to go past the start and let the repeating data settle in...
+	TurnReadLFOn(210*8); 
 
 	// Acquisition
 	// Now do the acquisition
 	DoPartialAcquisition(0, true, 12000);
 
-	//	doT55x7Acquisition(12000);
-
 	// Turn the field off
 	FpgaWriteConfWord(FPGA_MAJOR_MODE_OFF); // field off
 	cmd_send(CMD_ACK,0,0,0,0,0);    
@@ -1752,7 +1755,7 @@ void Cotag(uint32_t arg0) {
 	switch(rawsignal) {
 		case 0: doCotagAcquisition(50000); break;
 		case 1: doCotagAcquisitionManchester(); break;
-		case 2: DoAcquisition_config(TRUE); break;
+		case 2: DoAcquisition_config(true, 0); break;
 	}
 
 	// Turn the field off