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This commit is contained in:
Niel Nielsen
2026-05-01 20:14:24 +02:00
committed by GitHub
parent f7feda5dc9
commit bba432c579
1 changed files with 2 additions and 2 deletions
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firmware/application/src/rfid/nfctag/lf/lf_tag_em.c
+2 -2
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@@ -110,8 +110,8 @@ static void lpcomp_init(void) {
static void pwm_handler(nrfx_pwm_evt_type_t event_type) {
if (event_type == NRFX_PWM_EVT_END_SEQ0) {
// Fired at end of each loop iteration — check field without stopping PWM.
// Disable LPCOMP interrupts briefly while we sample to avoid re-entrancy.
NRF_LPCOMP->INTENCLR = LPCOMP_INTENCLR_UP_Msk | LPCOMP_INTENCLR_DOWN_Msk | LPCOMP_INTENCLR_CROSS_Msk;
// Mask UP interrupt while sampling to prevent re-entrancy.
NRF_LPCOMP->INTENCLR = LPCOMP_INTENCLR_UP_Msk;
if (!is_lf_field_exists()) {
// Field gone — stop the loop; pwm_handler will get EVT_STOPPED next.
nrfx_pwm_stop(&m_broadcast, false);