Proxmark/proxmark3
1
1
Fork 0
mirror of https://github.com/Proxmark/proxmark3.git synced 2025-02-24 07:34:40 +08:00
Code Issues Projects Releases Packages Wiki Activity

Update hfsnoop.c

Browse source 
chg:  enabled snooping function to break on receiving a usbpackage.
This commit is contained in:
Iceman 2017-06-25 19:39:45 +02:00 committed by GitHub
parent e7fd9f5ff4
commit 06ed826c01
1 changed files with 8 additions and 12 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
armsrc/hfsnoop.c
View file

@ -19,7 +19,7 @@ static void RAMFUNC optimizedSnoop(void)
if(AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY) if(AT91C_BASE_SSC->SSC_SR & AT91C_SSC_RXRDY)
{ {
*dest = (uint16_t)(AT91C_BASE_SSC->SSC_RHR); *dest = (uint16_t)(AT91C_BASE_SSC->SSC_RHR);
dest = dest + 1; dest++;
} }
} }
//Resetting Frame mode (First set in fpgaloader.c) //Resetting Frame mode (First set in fpgaloader.c)
@ -28,7 +28,9 @@ static void RAMFUNC optimizedSnoop(void)
void HfSnoop(int samplesToSkip, int triggersToSkip) void HfSnoop(int samplesToSkip, int triggersToSkip)
{ {
Dbprintf("Skipping first %d sample pairs, Skipping %d triggers.", samplesToSkip, triggersToSkip); BigBuf_free(); BigBuf_Clear();
Dbprintf("Skipping first %d sample pairs, Skipping %d triggers.\n", samplesToSkip, triggersToSkip);
int trigger_cnt; int trigger_cnt;
LED_D_ON(); LED_D_ON();
// Select correct configs // Select correct configs
@ -40,23 +42,18 @@ void HfSnoop(int samplesToSkip, int triggersToSkip)
FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SNOOP); FpgaWriteConfWord(FPGA_MAJOR_MODE_HF_SNOOP);
SpinDelay(100); SpinDelay(100);
BigBuf_free();
BigBuf_Clear();
AT91C_BASE_SSC->SSC_RFMR = SSC_FRAME_MODE_BITS_IN_WORD(16); // Setting Frame Mode For better performance on high speed data transfer. AT91C_BASE_SSC->SSC_RFMR = SSC_FRAME_MODE_BITS_IN_WORD(16); // Setting Frame Mode For better performance on high speed data transfer.
trigger_cnt = 0; trigger_cnt = 0;
uint16_t r = 0; uint16_t r = 0;
while(!BUTTON_PRESS()) { while(!BUTTON_PRESS() && !usb_poll_validate_length()) {
WDT_HIT(); WDT_HIT();
if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) {
r = (uint16_t)AT91C_BASE_SSC->SSC_RHR; r = (uint16_t)AT91C_BASE_SSC->SSC_RHR;
r = MAX(r & 0xff, r >> 8); r = MAX(r & 0xff, r >> 8);
if (r >= 240) if (r >= 240) {
{ if (++trigger_cnt > triggersToSkip)
if (++trigger_cnt > triggersToSkip) {
break; break;
}
} }
} }
} }
@ -64,9 +61,8 @@ void HfSnoop(int samplesToSkip, int triggersToSkip)
if(!BUTTON_PRESS()) { if(!BUTTON_PRESS()) {
int waitcount = samplesToSkip; // lets wait 40000 ticks of pck0 int waitcount = samplesToSkip; // lets wait 40000 ticks of pck0
while(waitcount != 0) { while(waitcount != 0) {
if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY)) { if(AT91C_BASE_SSC->SSC_SR & (AT91C_SSC_RXRDY))
waitcount--; waitcount--;
}
} }
optimizedSnoop(); optimizedSnoop();
Dbprintf("Trigger kicked! Value: %d, Dumping Samples Hispeed now.", r); Dbprintf("Trigger kicked! Value: %d, Dumping Samples Hispeed now.", r);