esp_timer: Add Test case when set_alarm needs set timer < now_time
#include <sys/time.h>
#include <sys/param.h>
#include "unity.h"
+#include "soc/frc_timer_reg.h"
#include "esp_timer.h"
#include "esp_heap_caps.h"
#include "freertos/FreeRTOS.h"
@@ -817,3 +818,21 @@ TEST_CASE("esp_timer_impl_set_alarm and using start_once do not lead that the Sy
}
#endif // !defined(CONFIG_FREERTOS_UNICORE) && defined(CONFIG_ESP32_DPORT_WORKAROUND)
+
+TEST_CASE("Test case when esp_timer_impl_set_alarm needs set timer < now_time", "[esp_timer]")
+{
+ REG_WRITE(FRC_TIMER_LOAD_REG(1), 0);
+ esp_timer_impl_advance(50331648); // 0xefffffff/80 = 50331647
+
+ ets_delay_us(2);
+
+ portDISABLE_INTERRUPTS();
+ esp_timer_impl_set_alarm(50331647);
+ uint32_t alarm_reg = REG_READ(FRC_TIMER_ALARM_REG(1));
+ uint32_t count_reg = REG_READ(FRC_TIMER_COUNT_REG(1));
+ portENABLE_INTERRUPTS();
+
+ const uint32_t offset = 80 * 2; // s_timer_ticks_per_us
+ printf("alarm_reg = 0x%x, count_reg 0x%x\n", alarm_reg, count_reg);
+ TEST_ASSERT(alarm_reg <= (count_reg + offset));
+}
