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hf_aveul: Extend comments

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Ave 2020-09-03 17:43:47 +03:00
commit 51360c4d1a
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1 changed files with 8 additions and 4 deletions
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12
armsrc/Standalone/hf_aveul.c
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@ -10,6 +10,10 @@
/* Several parts of this code is based on code by Craig Young from HF_YOUNG */ /* Several parts of this code is based on code by Craig Young from HF_YOUNG */
/* This code does not account for:
- Cards with block counts other than 16
- Cards with authentication (MFU EV1 etc) */
#include "standalone.h" // standalone definitions #include "standalone.h" // standalone definitions
#include "proxmark3_arm.h" #include "proxmark3_arm.h"
#include "appmain.h" #include "appmain.h"
@ -34,7 +38,7 @@ void ModInfo(void) {
void RunMod(void) { void RunMod(void) {
StandAloneMode(); StandAloneMode();
Dbprintf("[=] AveUL (MF Ultralight read/emul) started"); Dbprintf("AveUL (MF Ultralight read/emul) started");
FpgaDownloadAndGo(FPGA_BITSTREAM_HF); FpgaDownloadAndGo(FPGA_BITSTREAM_HF);
// the main loop for your standalone mode // the main loop for your standalone mode
@ -88,8 +92,8 @@ void RunMod(void) {
read_successful = false; read_successful = false;
break; break;
} }
// TODO: I'm not 100% on why I need to do + 14. The bin->eml results have 14 blocks of almost all 0 at start. // We're skipping 14 blocks (56 bytes) here, as that "[...] has version/signature/counter data here" according to comments on dumptoemul-mfu
// and the bins just don't, so I'll admit that I am a little confused, but it works, so I won't question it much. // When converting a bin, it's almost all 0 other than one 0x0F byte, and functionality seems to be unaffected if that byte is set to 0x00.
emlSetMem_xt(dataout, 14 + i, 1, 4); emlSetMem_xt(dataout, 14 + i, 1, 4);
Dbhexdump(4, dataout, 0); Dbhexdump(4, dataout, 0);
} }
@ -114,6 +118,6 @@ void RunMod(void) {
} }
} }
DbpString("[=] exiting"); DbpString("exiting");
LEDsoff(); LEDsoff();
} }