diff options
| author | Yuval Adam <yuv.adm@gmail.com> | 2014-06-29 12:34:32 +0300 |
|---|---|---|
| committer | Yuval Adam <yuv.adm@gmail.com> | 2014-06-29 12:34:32 +0300 |
| commit | c3e4c9a25c2910d2d66d52215b3406b13d5b23d5 (patch) | |
| tree | added370d1e356901f8579f076e3263fb0464db7 /boards/dk-tm4c129x/freertos_demo/led_task.c | |
| parent | 990090a4cc9070837d31e66b58d40f0c3d038741 (diff) | |
Add more board models
Diffstat (limited to 'boards/dk-tm4c129x/freertos_demo/led_task.c')
| -rw-r--r-- | boards/dk-tm4c129x/freertos_demo/led_task.c | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/boards/dk-tm4c129x/freertos_demo/led_task.c b/boards/dk-tm4c129x/freertos_demo/led_task.c new file mode 100644 index 0000000..6929dd5 --- /dev/null +++ b/boards/dk-tm4c129x/freertos_demo/led_task.c @@ -0,0 +1,120 @@ +//*****************************************************************************
+//
+// led_task.c - A simple flashing LED task.
+//
+// Copyright (c) 2009-2014 Texas Instruments Incorporated. All rights reserved.
+// Software License Agreement
+//
+// Texas Instruments (TI) is supplying this software for use solely and
+// exclusively on TI's microcontroller products. The software is owned by
+// TI and/or its suppliers, and is protected under applicable copyright
+// laws. You may not combine this software with "viral" open-source
+// software in order to form a larger program.
+//
+// THIS SOFTWARE IS PROVIDED "AS IS" AND WITH ALL FAULTS.
+// NO WARRANTIES, WHETHER EXPRESS, IMPLIED OR STATUTORY, INCLUDING, BUT
+// NOT LIMITED TO, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+// A PARTICULAR PURPOSE APPLY TO THIS SOFTWARE. TI SHALL NOT, UNDER ANY
+// CIRCUMSTANCES, BE LIABLE FOR SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
+// DAMAGES, FOR ANY REASON WHATSOEVER.
+//
+// This is part of revision 2.1.0.12573 of the DK-TM4C129X Firmware Package.
+//
+//*****************************************************************************
+
+#include <stdint.h>
+#include <stdbool.h>
+#include "inc/hw_memmap.h"
+#include "inc/hw_types.h"
+#include "driverlib/gpio.h"
+#include "driverlib/rom.h"
+#include "idle_task.h"
+#include "led_task.h"
+#include "priorities.h"
+#include "FreeRTOS.h"
+#include "task.h"
+#include "queue.h"
+#include "semphr.h"
+//*****************************************************************************
+//
+// The stack size for the LED toggle task.
+//
+//*****************************************************************************
+#define STACKSIZE_LEDTASK 128
+
+//*****************************************************************************
+//
+// The amount of time to delay between toggles of the LED.
+//
+//*****************************************************************************
+uint32_t g_ui32LEDDelay = 500;
+
+//*****************************************************************************
+//
+// This task simply toggles the user LED at a 1 Hz rate.
+//
+//*****************************************************************************
+static void
+LEDTask(void *pvParameters)
+{
+ portTickType ui32LastTime;
+
+ //
+ // Get the current tick count.
+ //
+ ui32LastTime = xTaskGetTickCount();
+
+ //
+ // Loop forever.
+ //
+ while(1)
+ {
+ //
+ // Turn on the user LED.
+ //
+ ROM_GPIOPinWrite(GPIO_PORTQ_BASE, GPIO_PIN_7, GPIO_PIN_7);
+
+ //
+ // Wait for the required amount of time.
+ //
+ vTaskDelayUntil(&ui32LastTime, g_ui32LEDDelay / portTICK_RATE_MS);
+
+ //
+ // Turn off the user LED.
+ //
+ ROM_GPIOPinWrite(GPIO_PORTQ_BASE, GPIO_PIN_7, 0);
+
+ //
+ // Wait for the required amount of time.
+ //
+ vTaskDelayUntil(&ui32LastTime, g_ui32LEDDelay / portTICK_RATE_MS);
+ }
+}
+
+//*****************************************************************************
+//
+// Initializes the LED task.
+//
+//*****************************************************************************
+uint32_t
+LEDTaskInit(void)
+{
+ //
+ // Initialize the GPIO used to drive the user LED.
+ //
+ ROM_GPIOPinTypeGPIOOutput(GPIO_PORTQ_BASE, GPIO_PIN_7);
+
+ //
+ // Create the LED task.
+ //
+ if(xTaskCreate(LEDTask, (signed portCHAR *)"LED", STACKSIZE_LEDTASK, NULL,
+ tskIDLE_PRIORITY + PRIORITY_LED_TASK, NULL) != pdTRUE)
+ {
+ return(1);
+ }
+
+ //
+ // Success.
+ //
+ return(0);
+}
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