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Rollback LF Emulate.

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This commit is contained in:
dxl
2024-01-17 18:26:13 +08:00
parent fefcde542b
commit f597e18ab3
1 changed files with 13 additions and 27 deletions
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firmware/application/src/rfid/nfctag/lf/lf_tag_em.c
+13 -27
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@@ -207,7 +207,6 @@ bool lf_is_field_exists(void) {
}
void timer_ce_handler(nrf_timer_event_t event_type, void *p_context) {
bool mod;
switch (event_type) {
// Because we are configured using the CC channel 2, the event recovers
// Detect nrf_timer_event_compare0 event in the function
@@ -216,30 +215,30 @@ void timer_ce_handler(nrf_timer_event_t event_type, void *p_context) {
if (GETBIT(m_id_bit_data, m_bit_send_position)) {
// The first edge of the send 1
ANT_TO_MOD();
mod = true;
} else {
// The first edge of the send 0
ANT_NO_MOD();
mod = false;
}
m_is_send_first_edge = false; //The second edge is sent next time
} else {
if (GETBIT(m_id_bit_data, m_bit_send_position)) {
// Send the second edge of 1
ANT_NO_MOD();
mod = false;
} else {
//The second edge of the send 0
ANT_TO_MOD();
mod = true;
}
m_is_send_first_edge = true; //The first edge of the next sends next time
if (++m_bit_send_position >= LF_125KHZ_EM410X_BIT_SIZE) {
m_bit_send_position = 0;
++m_send_id_count;
}
}
// measure field only during no-mod half of last bit of last broadcast
if ((! mod) &&
(m_bit_send_position + 1 >= LF_125KHZ_EM410X_BIT_SIZE) &&
(m_send_id_count + 1 >= LF_125KHZ_BROADCAST_MAX)) {
if (m_send_id_count >= LF_125KHZ_BROADCAST_MAX) {
m_send_id_count = 0;
ANT_NO_MOD();
nrfx_timer_disable(&m_timer_send_id); // Close the timer of the broadcast venue
// We don't need any events, but only need to detect the state of the field
NRF_LPCOMP->INTENCLR = LPCOMP_INTENCLR_CROSS_Msk | LPCOMP_INTENCLR_UP_Msk | LPCOMP_INTENCLR_DOWN_Msk | LPCOMP_INTENCLR_READY_Msk;
@@ -257,15 +256,7 @@ void timer_ce_handler(nrf_timer_event_t event_type, void *p_context) {
NRF_LOG_INFO("LF FIELD LOST");
}
}
if (m_is_send_first_edge == true) { // The first edge of the next sends next time
if (++m_bit_send_position >= LF_125KHZ_EM410X_BIT_SIZE) {
m_bit_send_position = 0; // The broadcast is successful once, and the BIT position is zero
if (++m_send_id_count >= LF_125KHZ_BROADCAST_MAX) {
m_send_id_count = 0; //The number of broadcasts reaches the upper limit, re -identifies the status of the field and re -statistically count the number of broadcast times
}
}
}
break;
}
default: {
@@ -302,12 +293,11 @@ static void lpcomp_event_handler(nrf_lpcomp_event_t event) {
set_slot_light_color(RGB_BLUE);
TAG_FIELD_LED_ON()
//In any case, every time the state finds changes, you need to reset the BIT location of the sending
// In any case, every time the state finds changes, you need to reset the BIT location of the sending
m_send_id_count = 0;
m_bit_send_position = 0;
m_is_send_first_edge = true;
// openThePreciseHardwareTimerToTheBroadcastCardNumber
nrfx_timer_enable(&m_timer_send_id);
NRF_LOG_INFO("LF FIELD DETECTED");
@@ -338,9 +328,9 @@ static void lf_sense_enable(void) {
}
static void lf_sense_disable(void) {
nrfx_timer_uninit(&m_timer_send_id); //counterInitializationTimer
nrfx_lpcomp_uninit(); //antiInitializationComparator
m_is_lf_emulating = false; //setAsNonSimulatedState
nrfx_timer_uninit(&m_timer_send_id);
nrfx_lpcomp_uninit();
m_is_lf_emulating = false;
}
static enum {
@@ -353,18 +343,14 @@ static enum {
* @brief switchLfFieldInductionToEnableTheState
*/
void lf_tag_125khz_sense_switch(bool enable) {
// initializationModulationFootIsOutput
nrf_gpio_cfg_output(LF_MOD);
//theDefaultIsNotShortCircuitAntenna (shortCircuitWillCauseRssiToBeUnableToJudge)
ANT_NO_MOD();
//forTheFirstTimeOrDisabled,OnlyInitializationIsAllowed
if (m_lf_sense_state == LF_SENSE_STATE_NONE || m_lf_sense_state == LF_SENSE_STATE_DISABLE) {
if (enable) {
m_lf_sense_state = LF_SENSE_STATE_ENABLE;
lf_sense_enable();
}
} else { // inOtherCases,OnlyAntiInitializationIsAllowed
} else {
if (!enable) {
m_lf_sense_state = LF_SENSE_STATE_DISABLE;
lf_sense_disable();