I Cant clear the RTC2 after a Compare Match. First Compare is Triggered. After that no more Interrupt is generated. Code:
static const nrf_drv_rtc_t rtc = NRF_DRV_RTC_INSTANCE(2);
static void rtc_handler(nrf_drv_rtc_int_type_t int_type)
{
if (int_type == NRF_DRV_RTC_INT_COMPARE0)
{
//nrf_gpio_pin_toggle(COMPARE_EVENT_OUTPUT);
NRF_LOG_INFO("Compare\r\n");
}
else if (int_type == NRF_DRV_RTC_INT_TICK)
{
//nrf_gpio_pin_toggle(TICK_EVENT_OUTPUT);
//NRF_LOG_INFO("Tick\r\n");
}
}
ret_code_t err_code;
nrf_drv_rtc_config_t rtc_config = NRF_DRV_RTC_DEFAULT_CONFIG;
// PPI Initialisieren:
err_code = nrf_drv_ppi_init();
APP_ERROR_CHECK(err_code);
// Clock für RTC an:
err_code = nrf_drv_clock_init();
APP_ERROR_CHECK(err_code);
nrf_drv_clock_lfclk_request(NULL);
// RTC für Zeitgeber. RTC1 hier verwendet. Clock: 10000Hz. 10: 1000 Ticks pro Sekunde:
rtc_config.prescaler = (uint16_t)4095;
err_code = nrf_drv_rtc_init(&rtc, &rtc_config, rtc_handler);
APP_ERROR_CHECK(err_code);
// Tick Event anschalten:
nrf_drv_rtc_tick_enable(&rtc, false);
// Kein Interrupt
err_code = nrf_drv_rtc_cc_set(&rtc, 0, (uint32_t)TLC_SPIPufferOutMS, true);
APP_ERROR_CHECK(err_code);
// PPI Clear bei Compare:
err_code = nrf_drv_ppi_channel_alloc(&ppi_rtc_comp_clear);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_ppi_channel_assign(ppi_rtc_comp_clear,
nrf_rtc_event_address_get(NRF_RTC2, NRF_RTC_EVENT_COMPARE_0),
nrf_rtc_task_address_get(NRF_RTC2, NRF_RTC_TASK_CLEAR));
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_ppi_channel_enable(ppi_rtc_comp_clear);
APP_ERROR_CHECK(err_code);
err_code = nrf_drv_spi_xfer(&tlc_spi, &xfer, flags);
APP_ERROR_CHECK(err_code);
if(err_code == NRF_SUCCESS)
{
NRF_LOG_INFO("SPI Senden okay\r\n");
// Verbinde Latch-Pin mit PPI:
// Starte den Timer und die Übertragung:
nrf_drv_rtc_enable(&rtc);
//==========================================================
#ifndef RTC_ENABLED
#define RTC_ENABLED 1
#endif
#if RTC_ENABLED
// <o> RTC_DEFAULT_CONFIG_FREQUENCY - Frequency <16-32768>
#ifndef RTC_DEFAULT_CONFIG_FREQUENCY
#define RTC_DEFAULT_CONFIG_FREQUENCY 32768
#endif
// <q> RTC_DEFAULT_CONFIG_RELIABLE - Ensures safe compare event triggering
#ifndef RTC_DEFAULT_CONFIG_RELIABLE
#define RTC_DEFAULT_CONFIG_RELIABLE 0
#endif
// <o> RTC_DEFAULT_CONFIG_IRQ_PRIORITY - Interrupt priority
// <i> Priorities 0,2 (nRF51) and 0,1,4,5 (nRF52) are reserved for SoftDevice
// <0=> 0 (highest)
// <1=> 1
// <2=> 2
// <3=> 3
// <4=> 4
// <5=> 5
// <6=> 6
// <7=> 7
#ifndef RTC_DEFAULT_CONFIG_IRQ_PRIORITY
#define RTC_DEFAULT_CONFIG_IRQ_PRIORITY 7
#endif
// <q> RTC0_ENABLED - Enable RTC0 instance
#ifndef RTC0_ENABLED
#define RTC0_ENABLED 0
#endif
// <q> RTC1_ENABLED - Enable RTC1 instance
#ifndef RTC1_ENABLED
#define RTC1_ENABLED 0
#endif
// <q> RTC2_ENABLED - Enable RTC2 instance
#ifndef RTC2_ENABLED
#define RTC2_ENABLED 1
#endif
// <o> NRF_MAXIMUM_LATENCY_US - Maximum possible time[us] in highest priority interrupt
#ifndef NRF_MAXIMUM_LATENCY_US
#define NRF_MAXIMUM_LATENCY_US 2000
#endif
