From 1eddc40ed46cb74192e792ba2326e9ac174aa157 Mon Sep 17 00:00:00 2001 From: Yuri D'Elia Date: Wed, 5 Feb 2020 22:05:04 +0100 Subject: [PATCH] Comment existing code --- Firmware/fsensor.cpp | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Firmware/fsensor.cpp b/Firmware/fsensor.cpp index ea171906f..2cf336a6e 100755 --- a/Firmware/fsensor.cpp +++ b/Firmware/fsensor.cpp @@ -460,12 +460,17 @@ ISR(FSENSOR_INT_PIN_VECT) if (mmu_enabled || ir_sensor_detected) return; if (!((fsensor_int_pin_old ^ FSENSOR_INT_PIN_PIN_REG) & FSENSOR_INT_PIN_MASK)) return; fsensor_int_pin_old = FSENSOR_INT_PIN_PIN_REG; + + // prevent isr re-entry static bool _lock = false; if (_lock) return; _lock = true; + + // fetch fsensor_st_cnt atomically int st_cnt = fsensor_st_cnt; fsensor_st_cnt = 0; sei(); + uint8_t old_err_cnt = fsensor_err_cnt; uint8_t pat9125_res = fsensor_oq_meassure?pat9125_update():pat9125_update_y(); if (!pat9125_res)