Update main.c

Author: Jason2866

examples/espidf-ulp-lp/ulp/main.c

@@ -5,60 +5,16 @@
  */
 #include <stdint.h>
 #include <stdbool.h>
-#include "sdkconfig.h"
 #include "ulp_lp_core.h"
 #include "ulp_lp_core_utils.h"
 #include "ulp_lp_core_gpio.h"
-#include "ulp_lp_core_interrupts.h"
-#include "ulp_lp_core_print.h"
-#include "riscv/csr.h"
-
-#define DEBOUNCE_INTERVAL_CYCLES 10 // 10 cycles is about 0.625 us at 16 MHz
-
-#define SIMULATED_PULSE_FREQUENCY_HZ 2
-#define SIMULATED_PULSE_DELAY_US (1000000 / SIMULATED_PULSE_FREQUENCY_HZ) / 2
-
-uint32_t pulse_count;
-static uint32_t last_trigger_time_cycles;
-
-void LP_CORE_ISR_ATTR ulp_lp_core_lp_io_intr_handler(void)
-{
-    ulp_lp_core_gpio_clear_intr_status();
-    uint32_t trigger_time_cycles = RV_READ_CSR(mcycle);
-    /* Do some simple debouncing, do not count spurious pulses */
-    if (trigger_time_cycles - last_trigger_time_cycles > DEBOUNCE_INTERVAL_CYCLES) {
-        pulse_count++;
-        last_trigger_time_cycles = trigger_time_cycles;
-    }
-
-    if (pulse_count % CONFIG_EXAMPLE_PULSE_COUNT_WAKEUP_LIMIT == 0) {
-        lp_core_printf("Pulse count: %d, wake-up main CPU\n", pulse_count);
-        ulp_lp_core_wakeup_main_processor();
-    }
-
-}
-
 
 
 int main (void)
 {
-    lp_core_printf("LP Core pulse counter started\n");
-    ulp_lp_core_intr_enable();
-    ulp_lp_core_gpio_intr_enable(CONFIG_EXAMPLE_PULSE_COUNT_PIN, LP_IO_INTR_POSEDGE);
-
-    while(1) {
+    ulp_lp_core_wakeup_main_processor();
 
-#if CONFIG_EXAMPLE_PULSE_COUNT_SIMULATE
-        /* No external device connected to generate pulses, we simulate them ourselves instead */
-        ulp_lp_core_delay_us(SIMULATED_PULSE_DELAY_US);
-        ulp_lp_core_gpio_set_level(CONFIG_EXAMPLE_PULSE_COUNT_PIN, 1);
-        ulp_lp_core_delay_us(SIMULATED_PULSE_DELAY_US);
-        ulp_lp_core_gpio_set_level(CONFIG_EXAMPLE_PULSE_COUNT_PIN, 0);
-#else
-        /* Put CPU into a wait state to reduce power consumption while waiting for pulses */
-        ulp_lp_core_wait_for_intr();
-#endif //CONFIG_EXAMPLE_PULSE_COUNT_SIMULATE
-    }
+    ulp_lp_core_gpio_clear_intr_status();
 
     return 0;
 }