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/freertos_demo.c | |
| parent | 990090a4cc9070837d31e66b58d40f0c3d038741 (diff) | |
Add more board models
Diffstat (limited to 'boards/dk-tm4c129x/freertos_demo/freertos_demo.c')
| -rw-r--r-- | boards/dk-tm4c129x/freertos_demo/freertos_demo.c | 275 |
1 files changed, 275 insertions, 0 deletions
diff --git a/boards/dk-tm4c129x/freertos_demo/freertos_demo.c b/boards/dk-tm4c129x/freertos_demo/freertos_demo.c new file mode 100644 index 0000000..f54ebcf --- /dev/null +++ b/boards/dk-tm4c129x/freertos_demo/freertos_demo.c @@ -0,0 +1,275 @@ +//*****************************************************************************
+//
+// freertos_demo.c - Simple FreeRTOS example.
+//
+// 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_nvic.h"
+#include "inc/hw_types.h"
+#include "driverlib/rom.h"
+#include "driverlib/rom_map.h"
+#include "driverlib/sysctl.h"
+#include "grlib/grlib.h"
+#include "drivers/frame.h"
+#include "drivers/kentec320x240x16_ssd2119.h"
+#include "drivers/pinout.h"
+#include "drivers/touch.h"
+#include "display_task.h"
+#include "idle_task.h"
+#include "led_task.h"
+#include "lwip_task.h"
+#include "spider_task.h"
+
+#include "FreeRTOS.h"
+#include "task.h"
+#include "queue.h"
+#include "semphr.h"
+
+//*****************************************************************************
+//
+//! \addtogroup example_list
+//! <h1>FreeRTOS Example (freertos_demo)</h1>
+//!
+//! This application utilizes FreeRTOS to perform a variety of tasks in a
+//! concurrent fashion. The following tasks are created:
+//!
+//! * An lwIP task, which serves up web pages via the Ethernet interface. This
+//! is actually two tasks, one which runs the lwIP stack and one which
+//! manages the Ethernet interface (sending and receiving raw packets).
+//!
+//! * An LED task, which simply blinks the on-board LED at a user-controllable
+//! rate (changed via the web interface).
+//!
+//! * A set of spider tasks, each of which controls a spider that crawls around
+//! the LCD. The speed at which the spiders move is controllable via the web
+//! interface. Up to thirty-two spider tasks can be run concurrently (an
+//! application-imposed limit).
+//!
+//! * A spider control task, which manages presses on the touch screen and
+//! determines if a spider task should be terminated (if the spider is
+//! ``squished'') or if a new spider task should be created (if no spider is
+//! ``squished'').
+//!
+//! * There is an automatically created idle task, which monitors changes in
+//! the board's IP address and sends those changes to the user via a UART
+//! message.
+//!
+//! Across the bottom of the LCD, several status items are displayed: the
+//! amount of time the application has been running, the number of tasks that
+//! are running, the IP address of the board, the number of Ethernet packets
+//! that have been transmitted, and the number of Ethernet packets that have
+//! been received.
+//!
+//! The finder application (in tools/finder) can also be used to discover the
+//! IP address of the board. The finder application will search the network
+//! for all boards that respond to its requests and display information about
+//! them.
+//!
+//! The web site served by lwIP includes the ability to adjust the toggle rate
+//! of the LED task and the update speed of the spiders (all spiders move at
+//! the same speed).
+//!
+//! For additional details on FreeRTOS, refer to the FreeRTOS web page at:
+//! http://www.freertos.org/
+//!
+//! For additional details on lwIP, refer to the lwIP web page at:
+//! http://savannah.nongnu.org/projects/lwip/
+//
+//*****************************************************************************
+
+//*****************************************************************************
+//
+// System clock rate in Hz.
+//
+//*****************************************************************************
+uint32_t g_ui32SysClock;
+
+//*****************************************************************************
+//
+// The error routine that is called if the driver library encounters an error.
+//
+//*****************************************************************************
+#ifdef DEBUG
+void
+__error__(char *pcFilename, uint32_t ui32Line)
+{
+}
+#endif
+
+//*****************************************************************************
+//
+// This hook is called by FreeRTOS when an stack overflow error is detected.
+//
+//*****************************************************************************
+void
+vApplicationStackOverflowHook(xTaskHandle *pxTask, signed char *pcTaskName)
+{
+ tContext sContext;
+
+ //
+ // A fatal FreeRTOS error was detected, so display an error message.
+ //
+ GrContextInit(&sContext, &g_sKentec320x240x16_SSD2119);
+ GrContextForegroundSet(&sContext, ClrRed);
+ GrContextBackgroundSet(&sContext, ClrBlack);
+ GrContextFontSet(&sContext, g_psFontCm20);
+ GrStringDrawCentered(&sContext, "Fatal FreeRTOS error!", -1,
+ GrContextDpyWidthGet(&sContext) / 2,
+ (((GrContextDpyHeightGet(&sContext) - 24) / 2) +
+ 24), 1);
+
+ //
+ // This function can not return, so loop forever. Interrupts are disabled
+ // on entry to this function, so no processor interrupts will interrupt
+ // this loop.
+ //
+ while(1)
+ {
+ }
+}
+
+//*****************************************************************************
+//
+// Initialize FreeRTOS and start the initial set of tasks.
+//
+//*****************************************************************************
+int
+main(void)
+{
+ tContext sContext;
+
+ //
+ // Run from the PLL at 120 MHz.
+ //
+ g_ui32SysClock = MAP_SysCtlClockFreqSet((SYSCTL_XTAL_25MHZ |
+ SYSCTL_OSC_MAIN |
+ SYSCTL_USE_PLL |
+ SYSCTL_CFG_VCO_480),
+ configCPU_CLOCK_HZ);
+
+ //
+ // Initialize the device pinout appropriately for this board.
+ //
+ PinoutSet();
+
+ //
+ // Initialize the display driver.
+ //
+ Kentec320x240x16_SSD2119Init(g_ui32SysClock);
+
+ //
+ // Initialize the graphics context.
+ //
+ GrContextInit(&sContext, &g_sKentec320x240x16_SSD2119);
+
+ //
+ // Draw the application frame.
+ //
+ FrameDraw(&sContext, "freertos-demo");
+
+ //
+ // Make sure the main oscillator is enabled because this is required by
+ // the PHY. The system must have a 25MHz crystal attached to the OSC
+ // pins. The SYSCTL_MOSC_HIGHFREQ parameter is used when the crystal
+ // frequency is 10MHz or higher.
+ //
+ SysCtlMOSCConfigSet(SYSCTL_MOSC_HIGHFREQ);
+
+ //
+ // Create the display task.
+ //
+ if(DisplayTaskInit() != 0)
+ {
+ GrContextForegroundSet(&sContext, ClrRed);
+ GrStringDrawCentered(&sContext, "Failed to create display task!", -1,
+ GrContextDpyWidthGet(&sContext) / 2,
+ (((GrContextDpyHeightGet(&sContext) - 24) / 2) +
+ 24), 0);
+ while(1)
+ {
+ }
+ }
+
+ //
+ // Create the spider task.
+ //
+ if(SpiderTaskInit() != 0)
+ {
+ GrContextForegroundSet(&sContext, ClrRed);
+ GrStringDrawCentered(&sContext, "Failed to create spider task!", -1,
+ GrContextDpyWidthGet(&sContext) / 2,
+ (((GrContextDpyHeightGet(&sContext) - 24) / 2) +
+ 24), 0);
+ while(1)
+ {
+ }
+ }
+
+ //
+ // Create the LED task.
+ //
+ if(LEDTaskInit() != 0)
+ {
+ GrContextForegroundSet(&sContext, ClrRed);
+ GrStringDrawCentered(&sContext, "Failed to create LED task!", -1,
+ GrContextDpyWidthGet(&sContext) / 2,
+ (((GrContextDpyHeightGet(&sContext) - 24) / 2) +
+ 24), 0);
+ while(1)
+ {
+ }
+ }
+
+ //
+ // Create the lwIP tasks.
+ //
+ if(lwIPTaskInit() != 0)
+ {
+ GrContextForegroundSet(&sContext, ClrRed);
+ GrStringDrawCentered(&sContext, "Failed to create lwIP tasks!", -1,
+ GrContextDpyWidthGet(&sContext) / 2,
+ (((GrContextDpyHeightGet(&sContext) - 24) / 2) +
+ 24), 0);
+ while(1)
+ {
+ }
+ }
+
+ //
+ // Start the scheduler. This should not return.
+ //
+ vTaskStartScheduler();
+
+ //
+ // In case the scheduler returns for some reason, print an error and loop
+ // forever.
+ //
+ GrContextForegroundSet(&sContext, ClrRed);
+ GrStringDrawCentered(&sContext, "Failed to start scheduler!", -1,
+ GrContextDpyWidthGet(&sContext) / 2,
+ (((GrContextDpyHeightGet(&sContext) - 24) / 2) + 24),
+ 0);
+ while(1)
+ {
+ }
+}
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