X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/f38a152863a5eb289acb169c5a38b4b77e87956e..5ee53a0e75c48de359108f5d21d4b829ed504467:/armsrc/util.c

diff --git a/armsrc/util.c b/armsrc/util.c
index f20e4b42..3d536f39 100644
--- a/armsrc/util.c
+++ b/armsrc/util.c
@@ -8,10 +8,11 @@
 // Utility functions used in many places, not specific to any piece of code.
 //-----------------------------------------------------------------------------
 
-#include "../include/proxmark3.h"
+#include "proxmark3.h"
 #include "util.h"
 #include "string.h"
 #include "apps.h"
+#include "BigBuf.h"
 
 
 
@@ -20,7 +21,7 @@ void print_result(char *name, uint8_t *buf, size_t len) {
 
    if ( len % 16 == 0 ) {
 	   for(; p-buf < len; p += 16)
-       Dbprintf("[%s:%02x/%02x] %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
+       Dbprintf("[%s:%d/%d] %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
 				name,
 				p-buf,
 				len,
@@ -29,12 +30,12 @@ void print_result(char *name, uint8_t *buf, size_t len) {
    }
    else {
    for(; p-buf < len; p += 8)
-       Dbprintf("[%s:%02x/%02x] %02x %02x %02x %02x %02x %02x %02x %02x", name, p-buf, len, p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
+       Dbprintf("[%s:%d/%d] %02x %02x %02x %02x %02x %02x %02x %02x", name, p-buf, len, p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7]);
    }
 }
 
 size_t nbytes(size_t nbits) {
-	return (nbits/8)+((nbits%8)>0);
+	return (nbits >> 3)+((nbits % 8) > 0);
 }
 
 uint32_t SwapBits(uint32_t value, int nrbits) {
@@ -265,17 +266,17 @@ void FormatVersionInformation(char *dst, int len, const char *prefix, void *vers
 {
 	struct version_information *v = (struct version_information*)version_information;
 	dst[0] = 0;
-	strncat(dst, prefix, len);
+	strncat(dst, prefix, len-1);
 	if(v->magic != VERSION_INFORMATION_MAGIC) {
-		strncat(dst, "Missing/Invalid version information", len - strlen(dst) - 1);
+		strncat(dst, "Missing/Invalid version information\n", len - strlen(dst) - 1);
 		return;
 	}
 	if(v->versionversion != 1) {
-		strncat(dst, "Version information not understood", len - strlen(dst) - 1);
+		strncat(dst, "Version information not understood\n", len - strlen(dst) - 1);
 		return;
 	}
 	if(!v->present) {
-		strncat(dst, "Version information not available", len - strlen(dst) - 1);
+		strncat(dst, "Version information not available\n", len - strlen(dst) - 1);
 		return;
 	}
 
@@ -288,6 +289,7 @@ void FormatVersionInformation(char *dst, int len, const char *prefix, void *vers
 
 	strncat(dst, " ", len - strlen(dst) - 1);
 	strncat(dst, v->buildtime, len - strlen(dst) - 1);
+	strncat(dst, "\n", len - strlen(dst) - 1);
 }
 
 //  -------------------------------------------------------------------------
@@ -302,11 +304,12 @@ void FormatVersionInformation(char *dst, int len, const char *prefix, void *vers
 
 void StartTickCount()
 {
-//  must be 0x40, but on my cpu - included divider is optimal
-//  0x20 - 1 ms / bit 
-//  0x40 - 2 ms / bit
-
-	AT91C_BASE_RTTC->RTTC_RTMR = AT91C_RTTC_RTTRST + 0x001D; // was 0x003B
+	// This timer is based on the slow clock. The slow clock frequency is between 22kHz and 40kHz.
+	// We can determine the actual slow clock frequency by looking at the Main Clock Frequency Register.
+    uint16_t mainf = AT91C_BASE_PMC->PMC_MCFR & 0xffff;		// = 16 * main clock frequency (16MHz) / slow clock frequency
+	// set RealTimeCounter divider to count at 1kHz:
+	AT91C_BASE_RTTC->RTTC_RTMR = AT91C_RTTC_RTTRST | ((256000 + (mainf/2)) / mainf);
+	// note: worst case precision is approx 2.5%
 }
 
 /*
@@ -342,7 +345,9 @@ void StartCountUS()
 	}
 
 uint32_t RAMFUNC GetCountUS(){
-	return (AT91C_BASE_TC1->TC_CV * 0x8000) + ((AT91C_BASE_TC0->TC_CV / 15) * 10);
+	//return (AT91C_BASE_TC1->TC_CV * 0x8000) + ((AT91C_BASE_TC0->TC_CV / 15) * 10);
+	//  By suggestion from PwPiwi, http://www.proxmark.org/forum/viewtopic.php?pid=17548#p17548
+	return (AT91C_BASE_TC1->TC_CV * 0x8000) + ((AT91C_BASE_TC0->TC_CV * 2) / 3); 
 }
 
 static uint32_t GlobalUsCounter = 0;
@@ -428,4 +433,3 @@ uint32_t RAMFUNC GetCountSspClk(){
 	}
 }
 
-