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esp_timer/esp32: Fix case when alarm_reg > counter_reg but FRC_TIMER_INT_STATUS is not set

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Closes: WIFI-1576
Closes: https://github.com/espressif/esp-idf/issues/2954
This commit is contained in:
KonstantinKondrashov
2020-01-13 14:36:38 +08:00
committed by maojianxin
parent 1fb82085b9
commit ca51072461
2 changed files with 58 additions and 3 deletions
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28
components/esp32/test/test_esp_timer.c
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@@ -779,3 +779,31 @@ 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));
}
TEST_CASE("Test esp_timer_impl_set_alarm when the counter is near an overflow value", "[esp_timer]")
{
for (int i = 0; i < 1024; ++i) {
uint32_t count_reg = 0xeffffe00 + i;
REG_WRITE(FRC_TIMER_LOAD_REG(1), count_reg);
printf("%d) count_reg = 0x%x\n", i, count_reg);
esp_timer_impl_set_alarm(1); // timestamp is expired
}
}