Add more board models

1 files changed, 368 insertions, 0 deletions

diff --git a/boards/ek-lm4f232/softuart_echo/softuart_echo.c b/boards/ek-lm4f232/softuart_echo/softuart_echo.c
new file mode 100644
index 0000000..25192a7
--- /dev/null
+++ b/boards/ek-lm4f232/softuart_echo/softuart_echo.c
@@ -0,0 +1,368 @@
+//*****************************************************************************

+//

+// softuart_echo.c - Example for reading data from and writing data to the

+//                   SoftUART.

+//

+// Copyright (c) 2012-2014 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-LM4F232 Firmware Package.

+//

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

+

+#include <stdint.h>

+#include <stdbool.h>

+#include "inc/hw_ints.h"

+#include "inc/hw_memmap.h"

+#include "driverlib/debug.h"

+#include "driverlib/gpio.h"

+#include "driverlib/interrupt.h"

+#include "driverlib/rom.h"

+#include "driverlib/sysctl.h"

+#include "driverlib/timer.h"

+#include "grlib/grlib.h"

+#include "drivers/cfal96x64x16.h"

+#include "utils/softuart.h"

+

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

+//

+//! \addtogroup example_list

+//! <h1>SoftUART Echo (softuart_echo)</h1>

+//!

+//! This example application utilizes the SoftUART to echo text.  The SoftUART

+//! is configured to use the same pins as the first UART (connected to the FTDI

+//! virtual serial port on the evaluation board), at 115,200 baud, 8-n-1 mode.

+//! All characters received on the SoftUART are transmitted back to the

+//! SoftUART.

+//

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

+

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

+//

+// The instance data for the SoftUART module.

+//

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

+static tSoftUART g_sUART;

+

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

+//

+// The buffer to be used for the SoftUART transmit buffer.

+//

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

+static uint8_t g_pui8TxBuffer[64];

+

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

+//

+// The buffer to be used for the SoftUART receive buffer.

+//

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

+static uint16_t g_pui16RxBuffer[64];

+

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

+//

+// The number of processor clocks in the time period of a single bit on the

+// SoftUART interface.

+//

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

+static uint32_t g_ui32BitTime;

+

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

+//

+// A flag that is set in the SoftUART "interrupt" handler when there are

+// characters in the receive buffer that need to be read.

+//

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

+static volatile uint32_t g_ui32Flag = 0;

+

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

+//

+// The error routine that is called if the driver library encounters an error.

+//

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

+#ifdef DEBUG

+void

+__error__(char *pcFilename, uint32_t ui32Line)

+{

+}

+#endif

+

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

+//

+// The interrupt handler for the SoftUART transmit timer interrupt.

+//

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

+void

+Timer0AIntHandler(void)

+{

+    //

+    // Clear the timer interrupt.

+    //

+    ROM_TimerIntClear(TIMER0_BASE, TIMER_TIMA_TIMEOUT);

+

+    //

+    // Call the SoftUART transmit timer tick function.

+    //

+    SoftUARTTxTimerTick(&g_sUART);

+}

+

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

+//

+// The interrupt handler for the SoftUART receive timer interrupt.

+//

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

+void

+Timer0BIntHandler(void)

+{

+    //

+    // Clear the timer interrupt.

+    //

+    ROM_TimerIntClear(TIMER0_BASE, TIMER_TIMB_TIMEOUT);

+

+    //

+    // Call the SoftUART receive timer tick function, and see if the timer

+    // should be disabled.

+    //

+    if(SoftUARTRxTick(&g_sUART, false) == SOFTUART_RXTIMER_END)

+    {

+        //

+        // Disable the timer interrupt since the SoftUART doesn't need it any

+        // longer.

+        //

+        ROM_TimerDisable(TIMER0_BASE, TIMER_B);

+    }

+}

+

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

+//

+// The interrupt handler for the SoftUART GPIO edge interrupt.

+//

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

+void

+GPIOAIntHandler(void)

+{

+    //

+    // Configure the SoftUART receive timer so that it will sample at the

+    // mid-bit time of this character.

+    //

+    ROM_TimerDisable(TIMER0_BASE, TIMER_B);

+    ROM_TimerLoadSet(TIMER0_BASE, TIMER_B, g_ui32BitTime);

+    ROM_TimerIntClear(TIMER0_BASE, TIMER_TIMB_TIMEOUT);

+    ROM_TimerEnable(TIMER0_BASE, TIMER_B);

+

+    //

+    // Call the SoftUART receive timer tick function.

+    //

+    SoftUARTRxTick(&g_sUART, true);

+}

+

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

+//

+// The SoftUART "interrupt" handler.

+//

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

+void

+SoftUARTIntHandler(void)

+{

+    uint32_t ui32Status;

+

+    //

+    // Get the interrrupt status.

+    //

+    ui32Status = SoftUARTIntStatus(&g_sUART, true);

+

+    //

+    // Clear the asserted interrupts.

+    //

+    SoftUARTIntClear(&g_sUART, ui32Status);

+

+    //

+    // Set the flag indicating that there are characters to be read from the

+    // receive buffer.  This is done instead of reading the characters here in

+    // order to minimize the amount of time spent in the "interrupt" handler

+    // (which is important at higher baud rates).

+    //

+    g_ui32Flag = 1;

+}

+

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

+//

+// Send a string to the UART.

+//

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

+void

+UARTSend(const uint8_t *pui8Buffer, uint32_t ui32Count)

+{

+    //

+    // Loop while there are more characters to send.

+    //

+    while(ui32Count--)

+    {

+        //

+        // Write the next character to the UART.

+        //

+        SoftUARTCharPut(&g_sUART, *pui8Buffer++);

+    }

+}

+

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

+//

+// This example demonstrates how to send a string of data to the UART.

+//

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

+int

+main(void)

+{

+    tRectangle sRect;

+    tContext sContext;

+

+    //

+    // Set the clocking to run at 50 MHz from the PLL.

+    //

+    ROM_SysCtlClockSet(SYSCTL_SYSDIV_4 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN |

+                       SYSCTL_XTAL_16MHZ);

+    

+    //

+    // Initialize the display driver.

+    //

+    CFAL96x64x16Init();

+

+    //

+    // Initialize the graphics context.

+    //

+    GrContextInit(&sContext, &g_sCFAL96x64x16);

+

+    //

+    // Fill the top part of the screen with blue to create the banner.

+    //

+    sRect.i16XMin = 0;

+    sRect.i16YMin = 0;

+    sRect.i16XMax = GrContextDpyWidthGet(&sContext) - 1;

+    sRect.i16YMax = 9;

+    GrContextForegroundSet(&sContext, ClrDarkBlue);

+    GrRectFill(&sContext, &sRect);

+

+    //

+    // Change foreground for white text.

+    //

+    GrContextForegroundSet(&sContext, ClrWhite);

+

+    //

+    // Put the application name in the middle of the banner.

+    //

+    GrContextFontSet(&sContext, g_psFontFixed6x8);

+    GrStringDrawCentered(&sContext, "softuart-echo", -1,

+                         GrContextDpyWidthGet(&sContext) / 2, 4, 0);

+    

+    //

+    // Initialize the display and write some instructions.

+    //

+    GrStringDrawCentered(&sContext, "Connect a", -1,

+                         GrContextDpyWidthGet(&sContext) / 2, 20, false);

+    GrStringDrawCentered(&sContext, "terminal", -1,

+                         GrContextDpyWidthGet(&sContext) / 2, 30, false);

+    GrStringDrawCentered(&sContext, "to UART0.", -1,

+                         GrContextDpyWidthGet(&sContext) / 2, 40, false);

+    GrStringDrawCentered(&sContext, "115000,N,8,1", -1,

+                         GrContextDpyWidthGet(&sContext) / 2, 50, false);

+

+    //

+    // Enable the peripherals used by this example.

+    //

+    ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA);

+    ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER0);

+

+    //

+    // Compute the bit time for 115,200 baud.

+    //

+    g_ui32BitTime = (ROM_SysCtlClockGet() / 115200) - 1;

+

+    //

+    // Configure the SoftUART for 8-N-1 operation.

+    //

+    SoftUARTInit(&g_sUART);

+    SoftUARTRxGPIOSet(&g_sUART, GPIO_PORTA_BASE, GPIO_PIN_0);

+    SoftUARTTxGPIOSet(&g_sUART, GPIO_PORTA_BASE, GPIO_PIN_1);

+    SoftUARTRxBufferSet(&g_sUART, g_pui16RxBuffer,

+                        sizeof(g_pui16RxBuffer) / sizeof(g_pui16RxBuffer[0]));

+    SoftUARTTxBufferSet(&g_sUART, g_pui8TxBuffer, sizeof(g_pui8TxBuffer));

+    SoftUARTCallbackSet(&g_sUART, SoftUARTIntHandler);

+    SoftUARTConfigSet(&g_sUART,

+                      (SOFTUART_CONFIG_WLEN_8 | SOFTUART_CONFIG_STOP_ONE |

+                       SOFTUART_CONFIG_PAR_NONE));

+

+    //

+    // Configure the timer for the SoftUART transmitter.

+    //

+    ROM_TimerConfigure(TIMER0_BASE,

+                       (TIMER_CFG_SPLIT_PAIR | TIMER_CFG_A_PERIODIC |

+                        TIMER_CFG_B_PERIODIC));

+    ROM_TimerLoadSet(TIMER0_BASE, TIMER_A, g_ui32BitTime);

+    ROM_TimerIntEnable(TIMER0_BASE, TIMER_TIMA_TIMEOUT | TIMER_TIMB_TIMEOUT);

+    ROM_TimerEnable(TIMER0_BASE, TIMER_A);

+

+    //

+    // Set the priorities of the interrupts associated with the SoftUART.  The

+    // receiver is higher priority than the transmitter, and the receiver edge

+    // interrupt is higher priority than the receiver timer interrupt.

+    //

+    ROM_IntPrioritySet(INT_GPIOA, 0x00);

+    ROM_IntPrioritySet(INT_TIMER0B, 0x40);

+    ROM_IntPrioritySet(INT_TIMER0A, 0x80);

+

+    //

+    // Enable the interrupts associated with the SoftUART.

+    //

+    ROM_IntEnable(INT_TIMER0A);

+    ROM_IntEnable(INT_TIMER0B);

+    ROM_IntEnable(INT_GPIOA);

+

+    //

+    // Prompt for text to be entered.

+    //

+    UARTSend((uint8_t *)"\033[2JEnter text: ", 16);

+

+    //

+    // Enable the SoftUART interrupt.

+    //

+    SoftUARTIntEnable(&g_sUART, SOFTUART_INT_RX | SOFTUART_INT_RT);

+

+    //

+    // Loop forever echoing data through the UART.

+    //

+    while(1)

+    {

+        //

+        // Wait until there are characters available in the receive buffer.

+        //

+        while(g_ui32Flag == 0)

+        {

+        }

+        g_ui32Flag = 0;

+

+        //

+        // Loop while there are characters in the receive buffer.

+        //

+        while(SoftUARTCharsAvail(&g_sUART))

+        {

+            //

+            // Read the next character from the UART and write it back to the

+            // UART.

+            //

+            SoftUARTCharPutNonBlocking(&g_sUART,

+                                       SoftUARTCharGetNonBlocking(&g_sUART));

+        }

+    }

+}