Add ek-tm4c1294xl example projects

1 files changed, 280 insertions, 0 deletions

diff --git a/boards/ek-tm4c1294xl/enet_io/io.c b/boards/ek-tm4c1294xl/enet_io/io.c
new file mode 100644
index 0000000..23f1ece
--- /dev/null
+++ b/boards/ek-tm4c1294xl/enet_io/io.c
@@ -0,0 +1,280 @@
+//*****************************************************************************

+//

+// io.c - I/O routines for the enet_io example application.

+//

+// Copyright (c) 2013-2014 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 EK-TM4C1294XL Firmware Package.

+//

+//*****************************************************************************

+#include <stdbool.h>

+#include <stdint.h>

+#include "inc/hw_ints.h"

+#include "inc/hw_memmap.h"

+#include "inc/hw_pwm.h"

+#include "inc/hw_types.h"

+#include "driverlib/gpio.h"

+#include "driverlib/pwm.h"

+#include "driverlib/sysctl.h"

+#include "driverlib/timer.h"

+#include "driverlib/interrupt.h"

+#include "driverlib/rom.h"

+#include "utils/ustdlib.h"

+#include "io.h"

+

+//*****************************************************************************

+//

+// Hardware connection for the user LED.

+//

+//*****************************************************************************

+#define LED_PORT_BASE GPIO_PORTN_BASE

+#define LED_PIN GPIO_PIN_0

+

+//*****************************************************************************

+//

+// Hardware connection for the animation LED.

+//

+//*****************************************************************************

+#define LED_ANIM_PORT_BASE GPIO_PORTN_BASE

+#define LED_ANIM_PIN GPIO_PIN_1

+

+//*****************************************************************************

+//

+// The system clock speed.

+//

+//*****************************************************************************

+extern uint32_t g_ui32SysClock;

+

+//*****************************************************************************

+//

+// The current speed of the on-screen animation expressed as a percentage.

+//

+//*****************************************************************************

+volatile unsigned long g_ulAnimSpeed = 10;

+

+//*****************************************************************************

+//

+// Set the timer used to pace the animation.  We scale the timer timeout such

+// that a speed of 100% causes the timer to tick once every 20 mS (50Hz).

+//

+//*****************************************************************************

+static void

+io_set_timer(unsigned long ulSpeedPercent)

+{

+    unsigned long ulTimeout;

+

+    //

+    // Turn the timer off while we are mucking with it.

+    //

+    ROM_TimerDisable(TIMER2_BASE, TIMER_A);

+

+    //

+    // If the speed is non-zero, we reset the timeout.  If it is zero, we

+    // just leave the timer disabled.

+    //

+    if(ulSpeedPercent)

+    {

+        //

+        // Set Timeout

+        //

+        ulTimeout = g_ui32SysClock / 50;

+        ulTimeout = (ulTimeout * 100 ) / ulSpeedPercent;

+

+        ROM_TimerLoadSet(TIMER2_BASE, TIMER_A, ulTimeout);

+        ROM_TimerEnable(TIMER2_BASE, TIMER_A);

+    }

+}

+

+//*****************************************************************************

+//

+// Initialize the IO used in this demo

+//

+//*****************************************************************************

+void

+io_init(void)

+{

+    //

+    // Configure Port N0 for as an output for the status LED.

+    //

+    ROM_GPIOPinTypeGPIOOutput(LED_PORT_BASE, LED_PIN);

+

+    //

+    // Configure Port N0 for as an output for the animation LED.

+    //

+    ROM_GPIOPinTypeGPIOOutput(LED_ANIM_PORT_BASE, LED_ANIM_PIN);

+

+    //

+    // Initialize LED to OFF (0)

+    //

+    ROM_GPIOPinWrite(LED_PORT_BASE, LED_PIN, 0);

+

+    //

+    // Initialize animation LED to OFF (0)

+    //

+    ROM_GPIOPinWrite(LED_ANIM_PORT_BASE, LED_ANIM_PIN, 0);

+

+    //

+    // Enable the peripherals used by this example.

+    //

+    ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER2);

+

+    //

+    // Configure the timer used to pace the animation.

+    //

+    ROM_TimerConfigure(TIMER2_BASE, TIMER_CFG_PERIODIC);

+

+    //

+    // Setup the interrupts for the timer timeouts.

+    //

+    ROM_IntEnable(INT_TIMER2A);

+    ROM_TimerIntEnable(TIMER2_BASE, TIMER_TIMA_TIMEOUT);

+

+    //

+    // Set the timer for the current animation speed.  This enables the

+    // timer as a side effect.

+    //

+    io_set_timer(g_ulAnimSpeed);

+}

+

+//*****************************************************************************

+//

+// Set the status LED on or off.

+//

+//*****************************************************************************

+void

+io_set_led(bool bOn)

+{

+    //

+    // Turn the LED on or off as requested.

+    //

+    ROM_GPIOPinWrite(LED_PORT_BASE, LED_PIN, bOn ? LED_PIN : 0);

+}

+

+//*****************************************************************************

+//

+// Return LED state

+//

+//*****************************************************************************

+void

+io_get_ledstate(char * pcBuf, int iBufLen)

+{

+    //

+    // Get the state of the LED

+    //

+    if(ROM_GPIOPinRead(LED_PORT_BASE, LED_PIN))

+    {

+        usnprintf(pcBuf, iBufLen, "ON");

+    }

+    else

+    {

+        usnprintf(pcBuf, iBufLen, "OFF");

+    }

+

+}

+

+//*****************************************************************************

+//

+// Return LED state as an integer, 1 on, 0 off.

+//

+//*****************************************************************************

+int

+io_is_led_on(void)

+{

+    //

+    // Get the state of the LED

+    //

+    if(ROM_GPIOPinRead(LED_PORT_BASE, LED_PIN))

+    {

+        return(true);

+    }

+    else

+    {

+        return(0);

+    }

+}

+

+//*****************************************************************************

+//

+// Set the speed of the animation shown on the display.  In this version, the

+// speed is described as a decimal number encoded as an ASCII string.

+//

+//*****************************************************************************

+void

+io_set_animation_speed_string(char *pcBuf)

+{

+    unsigned long ulSpeed;

+

+    //

+    // Parse the passed parameter as a decimal number.

+    //

+    ulSpeed = 0;

+    while((*pcBuf >= '0') && (*pcBuf <= '9'))

+    {

+        ulSpeed *= 10;

+        ulSpeed += (*pcBuf - '0');

+        pcBuf++;

+    }

+

+    //

+    // If the number is valid, set the new speed.

+    //

+    if(ulSpeed <= 100)

+    {

+        g_ulAnimSpeed = ulSpeed;

+        io_set_timer(g_ulAnimSpeed);

+    }

+}

+

+//*****************************************************************************

+//

+// Set the speed of the animation shown on the display.

+//

+//*****************************************************************************

+void

+io_set_animation_speed(unsigned long ulSpeed)

+{

+    //

+    // If the number is valid, set the new speed.

+    //

+    if(ulSpeed <= 100)

+    {

+        g_ulAnimSpeed = ulSpeed;

+        io_set_timer(g_ulAnimSpeed);

+    }

+}

+

+//*****************************************************************************

+//

+// Get the current animation speed as an ASCII string.

+//

+//*****************************************************************************

+void

+io_get_animation_speed_string(char *pcBuf, int iBufLen)

+{

+    usnprintf(pcBuf, iBufLen, "%d%%", g_ulAnimSpeed);

+}

+

+//*****************************************************************************

+//

+// Get the current animation speed as a number.

+//

+//*****************************************************************************

+unsigned long

+io_get_animation_speed(void)

+{

+    return(g_ulAnimSpeed);

+}