From 7fa6fe176c90b1f8167a60c9f40ea2ca09dab31d Mon Sep 17 00:00:00 2001
From: Wolfgang Hottgenroth <w.hottgenroth@krohne.com>
Date: Tue, 9 Mar 2021 18:38:56 +0100
Subject: [PATCH] timer

---
 src/main/CMakeLists.txt |  1 +
 src/main/app_main.c     |  2 ++
 src/main/timer.c        | 38 ++++++++++++++++++++++++++++++++++++++
 src/main/timer.h        |  8 ++++++++
 4 files changed, 49 insertions(+)
 create mode 100644 src/main/timer.c
 create mode 100644 src/main/timer.h

diff --git a/src/main/CMakeLists.txt b/src/main/CMakeLists.txt
index e21c32e..84f3e82 100644
--- a/src/main/CMakeLists.txt
+++ b/src/main/CMakeLists.txt
@@ -1,4 +1,5 @@
 idf_component_register(SRCS "app_main.c"
                             "network_mngr.c"
                             "gpio.c"
+                            "timer.c"
                     INCLUDE_DIRS ".")
diff --git a/src/main/app_main.c b/src/main/app_main.c
index 3bd5e5b..064b4cd 100644
--- a/src/main/app_main.c
+++ b/src/main/app_main.c
@@ -14,6 +14,7 @@
 #include <nvs_flash.h>
 
 #include "gpio.h"
+#include "timer.h"
 
 
 
@@ -38,6 +39,7 @@ void app_main(void)
     gpioInit();
     networkInit(isGpioForceProv());
 
+    timerInit();
 
     /* Start main application now */
     while (1) {
diff --git a/src/main/timer.c b/src/main/timer.c
new file mode 100644
index 0000000..b22fe61
--- /dev/null
+++ b/src/main/timer.c
@@ -0,0 +1,38 @@
+#include <stdint.h>
+
+#include "timer.h"
+
+#include <driver/timer.h>
+#include <esp_log.h>
+#include <esp_types.h>
+#include <freertos/FreeRTOS.h>
+#include <freertos/task.h>
+#include <freertos/queue.h>
+
+static const char *TAG = "tm";
+
+
+
+static void timer_task(void *arg) {
+    while (1) {
+        uint64_t counterValue;
+        timer_get_counter_value(TIMER_GROUP_0, 0, &counterValue);
+        ESP_LOGI(TAG, "timer value: %08x %08x", (uint32_t)(counterValue >> 32), (uint32_t)(counterValue));
+        vTaskDelay(1000 / portTICK_PERIOD_MS);
+    }
+}
+
+void timerInit() {
+    timer_config_t config = {
+        .divider = 80,
+        .counter_dir = TIMER_COUNT_UP,
+        .counter_en = TIMER_PAUSE,
+        .alarm_en = TIMER_ALARM_DIS,
+        .auto_reload = TIMER_AUTORELOAD_EN
+    };
+    timer_init(TIMER_GROUP_0, 0, &config);
+    timer_set_counter_value(TIMER_GROUP_0, 0, 0);
+    timer_start(TIMER_GROUP_0, 0);
+
+    xTaskCreate(timer_task, "timer_task", 2048, NULL, 5, NULL);
+}
diff --git a/src/main/timer.h b/src/main/timer.h
new file mode 100644
index 0000000..ecc23e8
--- /dev/null
+++ b/src/main/timer.h
@@ -0,0 +1,8 @@
+#ifndef _PCNT_H_
+#define _PCNT_H_
+
+void timerInit();
+
+
+
+#endif // _PCNT_H_
\ No newline at end of file