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Merge branch 'bufgix/esp_timer_set_alarm' into 'master'

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esp_timer: Fix set_alarm. Case when timestamp < now_time

Closes WIFI-1511

See merge request espressif/esp-idf!6960
This commit is contained in:
Angus Gratton
2019-12-16 13:39:44 +08:00
parent 1f6bb6ef4f c6b681827d
commit f7b51c164d
3 changed files with 22 additions and 3 deletions
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19
components/esp32/test/test_esp_timer.c
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@@ -4,6 +4,7 @@
#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));
}