AT91C_BASE_PIOA->PIO_OER = GPIO_SSC_DOUT;
AT91C_BASE_PIOA->PIO_ODR = GPIO_SSC_CLK;
-#define SHORT_COIL() LOW(GPIO_SSC_DOUT)
-#define OPEN_COIL() HIGH(GPIO_SSC_DOUT)
+ #define SHORT_COIL() LOW(GPIO_SSC_DOUT)
+ #define OPEN_COIL() HIGH(GPIO_SSC_DOUT)
i = 0;
for(;;) {
if (ledcontrol)
LED_D_OFF();
-
+ //wait for next sample time
while(AT91C_BASE_PIOA->PIO_PDSR & GPIO_SSC_CLK) {
if(BUTTON_PRESS()) {
DbpString("Stopped");
{
}
-// compose fc/8 fc/10 waveform
-static void fc(int c, int *n) {
+// compose fc/8 fc/10 waveform (FSK2)
+static void fc(int c, int *n)
+{
uint8_t *dest = BigBuf_get_addr();
int idx;
if(c==0) {
dest[((*n)++)]=1;
dest[((*n)++)]=1;
- dest[((*n)++)]=0;
- dest[((*n)++)]=0;
+ dest[((*n)++)]=1;
+ dest[((*n)++)]=1;
dest[((*n)++)]=0;
dest[((*n)++)]=0;
dest[((*n)++)]=0;
dest[((*n)++)]=0;
}
+
// an fc/8 encoded bit is a bit pattern of 11000000 x6 = 48 samples
if(c==8) {
for (idx=0; idx<6; idx++) {
dest[((*n)++)]=1;
dest[((*n)++)]=1;
- dest[((*n)++)]=0;
- dest[((*n)++)]=0;
+ dest[((*n)++)]=1;
+ dest[((*n)++)]=1;
dest[((*n)++)]=0;
dest[((*n)++)]=0;
dest[((*n)++)]=0;
// an fc/10 encoded bit is a bit pattern of 1110000000 x5 = 50 samples
if(c==10) {
for (idx=0; idx<5; idx++) {
+ dest[((*n)++)]=1;
+ dest[((*n)++)]=1;
dest[((*n)++)]=1;
dest[((*n)++)]=1;
dest[((*n)++)]=1;
dest[((*n)++)]=0;
dest[((*n)++)]=0;
dest[((*n)++)]=0;
- dest[((*n)++)]=0;
- dest[((*n)++)]=0;
+ }
+ }
+}
+// compose fc/X fc/Y waveform (FSKx)
+static void fcAll(uint8_t c, int *n, uint8_t clock)
+{
+ uint8_t *dest = BigBuf_get_addr();
+ uint8_t idx;
+ uint8_t fcCnt;
+ // c = count of field clock for this bit
+
+ int mod = clock % c;
+ // loop through clock - step field clock
+ for (idx=0; idx < (uint8_t) clock/c; idx++){
+ // loop through field clock length - put 1/2 FC length 1's and 1/2 0's per field clock wave (to create the wave)
+ for (fcCnt=0; fcCnt < c; fcCnt++){
+ if (fcCnt < c/2){
+ dest[((*n)++)]=1;
+ } else {
+ dest[((*n)++)]=0;
+ }
+ }
+ }
+ Dbprintf("mod: %d",mod);
+ if (mod>0){ //for FC counts that don't add up to a full clock cycle padd with extra wave
+ for (idx=0; idx < mod; idx++){
+ if (idx < mod/2) {
+ dest[((*n)++)]=1;
+ } else {
+ dest[((*n)++)]=0;
+ }
}
}
}
LED_A_OFF();
}
+// prepare a waveform pattern in the buffer based on the ID given then
+// simulate a FSK tag until the button is pressed
+// arg1 contains fcHigh and fcLow, arg2 contains invert and clock
+void CmdFSKsimTAG(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream)
+{
+ int ledcontrol=1;
+ int n=0, i=0;
+ uint8_t fcHigh = arg1 >> 8;
+ uint8_t fcLow = arg1 & 0xFF;
+ //spacer bit
+ uint8_t clk = arg2 & 0xFF;
+ uint8_t invert = (arg2 >> 8) & 1;
+ //fcAll(0, &n, clk);
+
+ WDT_HIT();
+ for (i=0; i<size; i++){
+ //if ((i%4==3) fcAll(0,&n));
+ if (BitStream[i] == invert){
+ fcAll(fcLow, &n, clk);
+ } else {
+ fcAll(fcHigh, &n, clk);
+ }
+ }
+ Dbprintf("Simulating with fcHigh: %d, fcLow: %d, clk: %d, invert: %d, n: %d",fcHigh, fcLow, clk, invert, n);
+ //Dbprintf("First 64:");
+ //uint8_t *dest = BigBuf_get_addr();
+ //i=0;
+ //Dbprintf("%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d", dest[i],dest[i+1],dest[i+2],dest[i+3],dest[i+4],dest[i+5],dest[i+6],dest[i+7],dest[i+8],dest[i+9],dest[i+10],dest[i+11],dest[i+12],dest[i+13],dest[i+14],dest[i+15]);
+ //i+=16;
+ //Dbprintf("%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d", dest[i],dest[i+1],dest[i+2],dest[i+3],dest[i+4],dest[i+5],dest[i+6],dest[i+7],dest[i+8],dest[i+9],dest[i+10],dest[i+11],dest[i+12],dest[i+13],dest[i+14],dest[i+15]);
+ //i+=16;
+ //Dbprintf("%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d", dest[i],dest[i+1],dest[i+2],dest[i+3],dest[i+4],dest[i+5],dest[i+6],dest[i+7],dest[i+8],dest[i+9],dest[i+10],dest[i+11],dest[i+12],dest[i+13],dest[i+14],dest[i+15]);
+ //i+=16;
+ //Dbprintf("%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d", dest[i],dest[i+1],dest[i+2],dest[i+3],dest[i+4],dest[i+5],dest[i+6],dest[i+7],dest[i+8],dest[i+9],dest[i+10],dest[i+11],dest[i+12],dest[i+13],dest[i+14],dest[i+15]);
+
+ if (ledcontrol)
+ LED_A_ON();
+ SimulateTagLowFrequency(n, 0, ledcontrol);
+
+ if (ledcontrol)
+ LED_A_OFF();
+}
+
+// compose ask waveform for one bit(ASK)
+static void askSimBit(uint8_t c, int *n, uint8_t clock, uint8_t manchester)
+{
+ uint8_t *dest = BigBuf_get_addr();
+ uint8_t idx;
+ // c = current bit 1 or 0
+ int i = 0;
+ // for when we want a separator
+ if (c==2) { //separator
+ for (i=0; i<clock/2; i++){
+ dest[((*n)++)]=0;
+ }
+ } else {
+ if (manchester){
+ for (idx=0; idx < (uint8_t) clock/2; idx++){
+ dest[((*n)++)]=c;
+ }
+ for (idx=0; idx < (uint8_t) clock/2; idx++){
+ dest[((*n)++)]=c^1;
+ }
+ } else {
+ for (idx=0; idx < (uint8_t) clock; idx++){
+ dest[((*n)++)]=c;
+ }
+ }
+ }
+}
+
+// args clock, ask/man or askraw, invert, transmission separator
+void CmdASKsimTag(uint16_t arg1, uint16_t arg2, size_t size, uint8_t *BitStream)
+{
+ int ledcontrol = 1;
+ int n=0, i=0;
+ uint8_t clk = (arg1 >> 8) & 0xFF;
+ uint8_t manchester = arg1 & 1;
+ uint8_t separator = arg2 & 1;
+ uint8_t invert = (arg2 >> 8) & 1;
+ WDT_HIT();
+ for (i=0; i<size; i++){
+ askSimBit(BitStream[i]^invert, &n, clk, manchester);
+ }
+ if (separator==1) Dbprintf("sorry but separator option not yet available"); //askSimBit(2, &n, clk, manchester);
+
+ Dbprintf("Simulating with clk: %d, invert: %d, manchester: %d, separator: %d, n: %d",clk, invert, manchester, separator, n);
+ //DEBUG
+ //Dbprintf("First 64:");
+ //uint8_t *dest = BigBuf_get_addr();
+ //i=0;
+ //Dbprintf("%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d", dest[i],dest[i+1],dest[i+2],dest[i+3],dest[i+4],dest[i+5],dest[i+6],dest[i+7],dest[i+8],dest[i+9],dest[i+10],dest[i+11],dest[i+12],dest[i+13],dest[i+14],dest[i+15]);
+ //i+=16;
+ //Dbprintf("%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d", dest[i],dest[i+1],dest[i+2],dest[i+3],dest[i+4],dest[i+5],dest[i+6],dest[i+7],dest[i+8],dest[i+9],dest[i+10],dest[i+11],dest[i+12],dest[i+13],dest[i+14],dest[i+15]);
+ //i+=16;
+ //Dbprintf("%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d", dest[i],dest[i+1],dest[i+2],dest[i+3],dest[i+4],dest[i+5],dest[i+6],dest[i+7],dest[i+8],dest[i+9],dest[i+10],dest[i+11],dest[i+12],dest[i+13],dest[i+14],dest[i+15]);
+ //i+=16;
+ //Dbprintf("%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d%d", dest[i],dest[i+1],dest[i+2],dest[i+3],dest[i+4],dest[i+5],dest[i+6],dest[i+7],dest[i+8],dest[i+9],dest[i+10],dest[i+11],dest[i+12],dest[i+13],dest[i+14],dest[i+15]);
+
+
+ if (ledcontrol)
+ LED_A_ON();
+ SimulateTagLowFrequency(n, 0, ledcontrol);
+
+ if (ledcontrol)
+ LED_A_OFF();
+}
+
// loop to get raw HID waveform then FSK demodulate the TAG ID from it
void CmdHIDdemodFSK(int findone, int *high, int *low, int ledcontrol)
{
tries++;
if (BUTTON_PRESS()) return;
} while (num_blocks != max_blocks);
-end:
+ end:
Dbprintf("-----------------------------------------");
Dbprintf("Memory content:");
Dbprintf("-----------------------------------------");
projects / proxmark3-svn / blobdiff