X-Git-Url: https://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/9bd1640803a4318ed589dbddb19aada36b2a02c0..d5bded10e28299e4a2b49aaae7d93457736c1263:/armsrc/ticks.c?ds=sidebyside diff --git a/armsrc/ticks.c b/armsrc/ticks.c index 4aaa9c98..d183c707 100644 --- a/armsrc/ticks.c +++ b/armsrc/ticks.c @@ -48,7 +48,7 @@ void SpinDelay(int ms) { // SpinDelay(1000); // ti = GetTickCount() - ti; // Dbprintf("timer(1s): %d t=%d", ti, GetTickCount()); -void StartTickCount() { +void StartTickCount(void) { // 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 @@ -60,14 +60,14 @@ void StartTickCount() { /* * Get the current count. */ -uint32_t RAMFUNC GetTickCount(){ +uint32_t RAMFUNC GetTickCount(void){ return AT91C_BASE_RTTC->RTTC_RTVR;// was * 2; } // ------------------------------------------------------------------------- // microseconds timer // ------------------------------------------------------------------------- -void StartCountUS() { +void StartCountUS(void) { AT91C_BASE_PMC->PMC_PCER |= (1 << 12) | (1 << 13) | (1 << 14); AT91C_BASE_TCB->TCB_BMR = AT91C_TCB_TC0XC0S_NONE | AT91C_TCB_TC1XC1S_TIOA0 | AT91C_TCB_TC2XC2S_NONE; @@ -87,25 +87,20 @@ void StartCountUS() { AT91C_BASE_TC1->TC_CCR = AT91C_TC_CLKEN | AT91C_TC_SWTRG; AT91C_BASE_TCB->TCB_BCR = 1; - while (AT91C_BASE_TC1->TC_CV > 1); + while (AT91C_BASE_TC1->TC_CV >= 1); } -uint32_t RAMFUNC GetCountUS(){ +uint32_t RAMFUNC GetCountUS(void){ //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); } -void ResetUSClock(void) { - //enable clock of timer and software trigger - AT91C_BASE_TC0->TC_CCR = AT91C_TC_CLKEN | AT91C_TC_SWTRG; - AT91C_BASE_TC1->TC_CCR = AT91C_TC_CLKEN | AT91C_TC_SWTRG; - while (AT91C_BASE_TC1->TC_CV > 1); -} + // ------------------------------------------------------------------------- // Timer for iso14443 commands. Uses ssp_clk from FPGA // ------------------------------------------------------------------------- -void StartCountSspClk() { +void StartCountSspClk(void) { AT91C_BASE_PMC->PMC_PCER = (1 << AT91C_ID_TC0) | (1 << AT91C_ID_TC1) | (1 << AT91C_ID_TC2); // Enable Clock to all timers AT91C_BASE_TCB->TCB_BMR = AT91C_TCB_TC0XC0S_TIOA1 // XC0 Clock = TIOA1 | AT91C_TCB_TC1XC1S_NONE // XC1 Clock = none @@ -160,17 +155,17 @@ void StartCountSspClk() { // The high word of the counter (TC2) will not reset until the low word (TC0) overflows. // Therefore need to wait quite some time before we can use the counter. - while (AT91C_BASE_TC2->TC_CV > 1); + while (AT91C_BASE_TC2->TC_CV >= 1); } void ResetSspClk(void) { //enable clock of timer and software trigger AT91C_BASE_TC0->TC_CCR = AT91C_TC_CLKEN | AT91C_TC_SWTRG; AT91C_BASE_TC1->TC_CCR = AT91C_TC_CLKEN | AT91C_TC_SWTRG; AT91C_BASE_TC2->TC_CCR = AT91C_TC_CLKEN | AT91C_TC_SWTRG; + while (AT91C_BASE_TC2->TC_CV >= 1); } -uint32_t RAMFUNC GetCountSspClk(){ - +uint32_t RAMFUNC GetCountSspClk(void) { uint32_t tmp_count = (AT91C_BASE_TC2->TC_CV << 16) | AT91C_BASE_TC0->TC_CV; if ((tmp_count & 0x0000ffff) == 0) //small chance that we may have missed an increment in TC2 return (AT91C_BASE_TC2->TC_CV << 16); @@ -216,5 +211,5 @@ void ResetTicks(){ } void ResetTimer(AT91PS_TC timer){ timer->TC_CCR = AT91C_TC_CLKEN | AT91C_TC_SWTRG; - while(timer->TC_CV > 1) ; + while(timer->TC_CV >= 1) ; }