1 files changed, 109 insertions, 0 deletions
diff --git a/examples/imx7d_sdb_m4/demo_apps/blinking_imx_demo/main.c b/examples/imx7d_sdb_m4/demo_apps/blinking_imx_demo/main.c
new file mode 100644
index 0000000..6547ada
--- /dev/null
+++ b/examples/imx7d_sdb_m4/demo_apps/blinking_imx_demo/main.c
@@ -0,0 +1,109 @@
+/*
+ * Copyright (c) 2015, Freescale Semiconductor, Inc.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * o Redistributions of source code must retain the above copyright notice, this list
+ *   of conditions and the following disclaimer.
+ *
+ * o Redistributions in binary form must reproduce the above copyright notice, this
+ *   list of conditions and the following disclaimer in the documentation and/or
+ *   other materials provided with the distribution.
+ *
+ * o Neither the name of Freescale Semiconductor, Inc. nor the names of its
+ *   contributors may be used to endorse or promote products derived from this
+ *   software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "FreeRTOS.h"
+#include "task.h"
+#include "board.h"
+#include "debug_console_imx.h"
+#include "gpio_ctrl.h"
+#include "gpt_timer.h"
+
+#define BLINKING_FREQ_MIN    (100)
+
+static volatile uint32_t blinkingInterval = BLINKING_FREQ_MIN;
+
+/******************************************************************************
+*
+* Function Name: ToggleTask
+* Comments: this task is used to turn toggle on/off LED.
+*
+******************************************************************************/
+void ToggleTask(void *pvParameters)
+{
+    while (true)
+    {
+        GPIO_Ctrl_ToggleLed();
+        /* Use GPT timer to get accurate delay */
+        GPT_Timer_Delay(blinkingInterval);
+    }
+}
+
+/******************************************************************************
+*
+* Function Name: SwitchTask
+* Comments: this task is used to change blinking frequency.
+*
+******************************************************************************/
+void SwitchTask(void *pvParameters)
+{
+    while (true)
+    {
+        PRINTF("\n\r====== Blinking interval %dms ======\n\r", blinkingInterval);
+        GPIO_Ctrl_WaitKeyPressed();
+        blinkingInterval += 100;
+        if (blinkingInterval > 1000)
+            blinkingInterval = BLINKING_FREQ_MIN;
+        /* Delay for 1 second to avoid glitch */
+        vTaskDelay(configTICK_RATE_HZ);
+    }
+}
+
+/******************************************************************************
+*
+* Function Name: main
+* Comments: main function, toggle LED and switch the blinking frequency by key.
+*
+******************************************************************************/
+int main(void)
+{
+    /* Initialize board specified hardware. */
+    hardware_init();
+
+    GPT_Timer_Init();
+    GPIO_Ctrl_Init();
+
+    PRINTF("\n\r================= Blinking Demo ==================\n\r");
+
+    /* Create a the APP main task. */
+    xTaskCreate(ToggleTask, "Toggle Task", configMINIMAL_STACK_SIZE,
+                NULL, tskIDLE_PRIORITY+1, NULL);
+    xTaskCreate(SwitchTask, "Switch Task", configMINIMAL_STACK_SIZE,
+                NULL, tskIDLE_PRIORITY+2, NULL);
+
+    /* Start FreeRTOS scheduler. */
+    vTaskStartScheduler();
+
+    /* should never reach this point. */
+    while (true);
+}
+
+/*******************************************************************************
+ * EOF
+ ******************************************************************************/