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Inc/RtcArtery.h

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+//
+// Created by cfif on 17.11.22.
+//
+
+#ifndef RTC_ARTERY_H
+#define RTC_ARTERY_H
+
+#include "Rtc.h"
+#include "cmsis_os2.h"
+
+typedef struct {
+
+#ifdef ACCESS_RTC
+    osMutexId_t access;
+#endif
+
+} tRtcArtery;
+
+void RtcArtery_Init(tRtcArtery *env);
+
+tRtcIO RtcArtery_GetIo(tRtcArtery *env);
+
+///deprecated
+tRtcArtery vRtcInit();
+
+///deprecated
+#define vRtcGetIo RtcArtery_GetIo
+
+#endif //RTC_ARTERY_H

Src/RtcArtery.c

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+//
+// Created by cfif on 17.11.22.
+//
+#include "RtcArtery.h"
+#include <SystemDelayInterface.h>
+#include <time.h>
+#include <string.h>
+#include "at32f435_437.h"
+
+///deprecated
+tRtcArtery vRtcInit() {
+    tRtcArtery rtcArtery;
+    RtcArtery_Init(&rtcArtery);
+    return rtcArtery;
+}
+
+void RtcArtery_Init(tRtcArtery *env) {
+
+    // enable the pwc clock
+    crm_periph_clock_enable(CRM_PWC_PERIPH_CLOCK, TRUE);
+
+    // allow access to ertc
+    pwc_battery_powered_domain_access(TRUE);
+
+    // reset ertc bpr domain
+    crm_battery_powered_domain_reset(TRUE);
+    crm_battery_powered_domain_reset(FALSE);
+
+    // enable the lext osc
+    crm_clock_source_enable(CRM_CLOCK_SOURCE_LEXT, TRUE);
+
+    // wait till lext is ready
+    while (crm_flag_get(CRM_LEXT_STABLE_FLAG) == RESET) {
+    }
+
+    // select the ertc clock source
+    crm_ertc_clock_select(CRM_ERTC_CLOCK_LEXT);
+
+    // enable the ertc clock
+    crm_ertc_clock_enable(TRUE);
+
+    // deinitializes the ertc registers
+    ertc_reset();
+
+    // wait for ertc apb registers update
+    ertc_wait_update();
+
+    // configure the ertc divider
+    // ertc second(1hz) = ertc_clk / (div_a + 1) * (div_b + 1
+    ertc_divider_set(127, 255);
+
+    // configure the ertc hour mode
+    ertc_hour_mode_set(ERTC_HOUR_MODE_24);
+
+    // set date
+    ertc_date_set(123, 6, 3, 6);
+    // set time
+    ertc_time_set(0, 0, 1, ERTC_AM);
+
+
+#ifdef ACCESS_RTC
+
+    *env = (tRtcArtery) {
+            .access = osMutexNew(NULL)
+    };
+
+#else
+    *env = (tRtcArtery) {
+
+    };
+#endif
+
+
+}
+
+static uint16_t vRtcSet(tRtcArtery *env, time_t *timestamp) {
+    struct tm dateTime;
+
+#ifdef ACCESS_RTC
+    if (osMutexAcquire(env->access, 1000) == osOK) {
+        localtime_r(timestamp, &dateTime);
+
+        // set date
+        ertc_date_set(dateTime.tm_year, dateTime.tm_mon + 1, dateTime.tm_mday, dateTime.tm_wday);
+        // set time
+        ertc_time_set(dateTime.tm_hour, dateTime.tm_min, dateTime.tm_sec, ERTC_AM);
+
+        osMutexRelease(env->access);
+    } else {
+        localtime_r(timestamp, &dateTime);
+
+        // set date
+        ertc_date_set(dateTime.tm_year, dateTime.tm_mon + 1, dateTime.tm_mday, dateTime.tm_wday);
+        // set time
+        ertc_time_set(dateTime.tm_hour, dateTime.tm_min, dateTime.tm_sec, ERTC_AM);
+    }
+#else
+    localtime_r(timestamp, &dateTime);
+
+    // set date
+    ertc_date_set(dateTime.tm_year, dateTime.tm_mon + 1, dateTime.tm_mday, dateTime.tm_wday);
+    // set time
+    ertc_time_set(dateTime.tm_hour, dateTime.tm_min, dateTime.tm_sec, ERTC_AM);
+#endif
+
+
+    return 0;
+}
+
+static uint16_t vRtcSetTM(tRtcArtery *env, struct tm *timestampTM) {
+
+#ifdef ACCESS_RTC
+    if (osMutexAcquire(env->access, 1000) == osOK) {
+        // set date
+        ertc_date_set(timestampTM->tm_year, timestampTM->tm_mon + 1, timestampTM->tm_mday, timestampTM->tm_wday);
+        // set time
+        ertc_time_set(timestampTM->tm_hour, timestampTM->tm_min, timestampTM->tm_sec, ERTC_AM);
+
+        osMutexRelease(env->access);
+    } else {
+        // set date
+        ertc_date_set(timestampTM->tm_year, timestampTM->tm_mon + 1, timestampTM->tm_mday, timestampTM->tm_wday);
+        // set time
+        ertc_time_set(timestampTM->tm_hour, timestampTM->tm_min, timestampTM->tm_sec, ERTC_AM);
+    }
+#else
+    // set date
+    ertc_date_set(timestampTM->tm_year, timestampTM->tm_mon + 1, timestampTM->tm_mday, timestampTM->tm_wday);
+    // set time
+    ertc_time_set(timestampTM->tm_hour, timestampTM->tm_min, timestampTM->tm_sec, ERTC_AM);
+#endif
+
+    return 0;
+}
+
+static void v_RtcGet(time_t *timestamp) {
+    ertc_time_type time;
+
+    ertc_calendar_get(&time);
+
+    struct tm dateTime;
+
+    memset(&dateTime, 0, sizeof(dateTime));
+
+    dateTime.tm_year = time.year;
+    dateTime.tm_mon = time.month - 1;
+    dateTime.tm_mday = time.day;
+    dateTime.tm_hour = time.hour;
+    dateTime.tm_min = time.min;
+    dateTime.tm_sec = time.sec;
+
+    *timestamp = mktime(&dateTime);
+    *timestamp &= 0xFFFFFFFF;
+
+}
+
+static uint16_t vRtcGet(tRtcArtery *env, time_t *timestamp) {
+
+
+#ifdef ACCESS_RTC
+    if (osMutexAcquire(env->access, 1000) == osOK) {
+        memset(timestamp, 0, sizeof(time_t));
+        v_RtcGet(timestamp);
+        osMutexRelease(env->access);
+    } else {
+        v_RtcGet(timestamp);
+    }
+#else
+
+    v_RtcGet(timestamp);
+
+#endif
+
+
+    return 0;
+}
+
+static void v_RtcGetTM(struct tm *timestampTM) {
+    ertc_time_type time;
+
+    ertc_calendar_get(&time);
+
+    memset(timestampTM, 0, sizeof(struct tm));
+
+    timestampTM->tm_year = time.year;
+    timestampTM->tm_mon = time.month - 1;
+    timestampTM->tm_mday = time.day;
+    timestampTM->tm_hour = time.hour;
+    timestampTM->tm_min = time.min;
+    timestampTM->tm_sec = time.sec;
+
+}
+
+static uint16_t vRtcGetTM(tRtcArtery *env, struct tm *timestampTM) {
+
+#ifdef ACCESS_RTC
+    if (osMutexAcquire(env->access, 1000) == osOK) {
+
+        v_RtcGetTM(timestampTM);
+
+        osMutexRelease(env->access);
+    } else {
+        v_RtcGetTM(timestampTM);
+    }
+#else
+
+    v_RtcGetTM(timestampTM);
+
+#endif
+
+    return 0;
+}
+
+tRtcIO RtcArtery_GetIo(tRtcArtery *env) {
+    tRtcIO io = {
+            .env = env,
+            .get = (RtcIOTransaction) vRtcGet,
+            .set = (RtcIOTransaction) vRtcSet,
+            .getTM = (RtcIOTransactionTM) vRtcGetTM,
+            .setTM = (RtcIOTransactionTM) vRtcSetTM
+    };
+    return io;
+}

modular.json

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+{
+  "dep": [
+    {
+      "type": "git",
+      "provider": "HVAC_DEV",
+      "repo": "Rtc"
+    }
+  ],
+  "cmake": {
+    "inc_dirs": [
+      "Inc"
+    ],
+    "srcs": [
+      "Src/**.c"
+    ]
+  }
+}