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armsrc: clarify static vars vs global vars

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This commit is contained in:
Philippe Teuwen 2020-05-19 17:05:43 +02:00
commit 3e7512a5d5
20 changed files with 101 additions and 102 deletions
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19
armsrc/lfadc.c
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@ -25,13 +25,18 @@
// T0 = timer/carrier = 1500kHz/125kHz = 1500000/125000 = 6
//#define HITAG_T0 3
//////////////////////////////////////////////////////////////////////////////
// Exported global variables
//////////////////////////////////////////////////////////////////////////////
bool g_logging = true;
//////////////////////////////////////////////////////////////////////////////
// Global variables
//////////////////////////////////////////////////////////////////////////////
bool rising_edge = false;
bool logging = true;
bool reader_mode = false;
static bool rising_edge = false;
static bool reader_mode = false;
//////////////////////////////////////////////////////////////////////////////
// Auxiliary functions
@ -90,7 +95,7 @@ static size_t lf_count_edge_periods_ex(size_t max, bool wait, bool detect_gap) {
adc_val = AT91C_BASE_SSC->SSC_RHR;
periods++;
if (logging) logSampleSimple(adc_val);
if (g_logging) logSampleSimple(adc_val);
// Only test field changes if state of adc values matter
if (wait == false) {
@ -120,7 +125,7 @@ static size_t lf_count_edge_periods_ex(size_t max, bool wait, bool detect_gap) {
if (periods >= max) return 0;
}
}
if (logging) logSampleSimple(0xFF);
if (g_logging) logSampleSimple(0xFF);
return 0;
}
@ -223,7 +228,7 @@ void lf_init(bool reader, bool simulate) {
uint32_t bufsize = 10000;
// use malloc
if (logging) initSampleBufferEx(&bufsize, true);
if (g_logging) initSampleBufferEx(&bufsize, true);
lf_sample_mean();
}
@ -269,7 +274,7 @@ size_t lf_detect_field_drop(size_t max) {
periods++;
volatile uint8_t adc_val = AT91C_BASE_SSC->SSC_RHR;
if (logging) logSampleSimple(adc_val);
if (g_logging) logSampleSimple(adc_val);
if (adc_val == 0) {
rising_edge = false;