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EK-TM4C123GH6PM-UART3/UART4/UART5/UART7小练

UART3小练
//***************************************************************************** // // bitband.c - Bit-band manipulation example. // // Copyright (c) 2012-2017 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 2.1.4.178 of the EK-TM4C123GXL Firmware Package. // //***************************************************************************** #include <stdint.h> #include <stdbool.h> #include "inc/hw_memmap.h" #include "inc/hw_types.h" #include "driverlib/debug.h" #include "driverlib/gpio.h" #include "driverlib/fpu.h" #include "driverlib/pin_map.h" #include "driverlib/sysctl.h" #include "driverlib/systick.h" #include "driverlib/rom.h" #include "driverlib/uart.h" #include "utils/uartstdio.h" //***************************************************************************** // //! \addtogroup example_list //! <h1>Bit-Banding (bitband)</h1> //! //! This example application demonstrates the use of the bit-banding //! capabilities of the Cortex-M4F microprocessor. All of SRAM and all of the //! peripherals reside within bit-band regions, meaning that bit-banding //! operations can be applied to any of them. In this example, a variable in //! SRAM is set to a particular value one bit at a time using bit-banding //! operations (it would be more efficient to do a single non-bit-banded write; //! this simply demonstrates the operation of bit-banding). // //***************************************************************************** //***************************************************************************** // // The value that is to be modified via bit-banding. // //***************************************************************************** static volatile uint32_t g_ui32Value; //***************************************************************************** // // The error routine that is called if the driver library encounters an error. // //***************************************************************************** #ifdef DEBUG void __error__(char *pcFilename, uint32_t ui32Line) {while(1){//// Hang on runtime error.//} } #endif //***************************************************************************** // // Configure the UART and its pins. This must be called before UARTprintf(). // //***************************************************************************** void ConfigureUART(void) {// Enable GPIOCROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOC)));//// Enable UART1//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART3);while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_UART3)));//// Configure GPIO Pins for UART mode.//ROM_GPIOPinConfigure(GPIO_PC6_U3RX);ROM_GPIOPinConfigure(GPIO_PC7_U3TX);ROM_GPIOPinTypeUART(GPIO_PORTC_BASE, GPIO_PIN_6 | GPIO_PIN_7);//// Use the internal 16MHz oscillator as the UART clock source.//UARTClockSourceSet(UART3_BASE, UART_CLOCK_PIOSC);UARTConfigSetExpClk(UART3_BASE,16000000,115200,UART_CONFIG_PAR_NONE|UART_CONFIG_STOP_ONE|UART_CONFIG_WLEN_8);UARTEnable(UART3_BASE); } //***************************************************************************** // // This example demonstrates the use of bit-banding to set individual bits // within a word of SRAM. // //***************************************************************************** int main(void) {//// Set the clocking to run directly from the crystal.//ROM_SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN |SYSCTL_XTAL_16MHZ);//// Initialize the UART interface.//ConfigureUART();//// Loop forever.//while(1){UARTCharPut(UART3_BASE,0xAA);} }

xyz549040622:

UART4小练

//*****************************************************************************
//
// bitband.c - Bit-band manipulation example.
//
// Copyright (c) 2012-2017 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 2.1.4.178 of the EK-TM4C123GXL Firmware Package.
//
//*****************************************************************************#include <stdint.h>
#include <stdbool.h>
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "driverlib/debug.h"
#include "driverlib/gpio.h"
#include "driverlib/fpu.h"
#include "driverlib/pin_map.h"
#include "driverlib/sysctl.h"
#include "driverlib/systick.h"
#include "driverlib/rom.h"
#include "driverlib/uart.h"
#include "utils/uartstdio.h"//*****************************************************************************
//
//! \addtogroup example_list
//! <h1>Bit-Banding (bitband)</h1>
//!
//! This example application demonstrates the use of the bit-banding
//! capabilities of the Cortex-M4F microprocessor.All of SRAM and all of the
//! peripherals reside within bit-band regions, meaning that bit-banding
//! operations can be applied to any of them.In this example, a variable in
//! SRAM is set to a particular value one bit at a time using bit-banding
//! operations (it would be more efficient to do a single non-bit-banded write;
//! this simply demonstrates the operation of bit-banding).
//
//*****************************************************************************//*****************************************************************************
//
// The value that is to be modified via bit-banding.
//
//*****************************************************************************
static volatile uint32_t g_ui32Value;//*****************************************************************************
//
// The error routine that is called if the driver library encounters an error.
//
//*****************************************************************************
#ifdef DEBUG
void
__error__(char *pcFilename, uint32_t ui32Line)
{while(1){//// Hang on runtime error.//}
}
#endif//*****************************************************************************
//
// Configure the UART and its pins.This must be called before UARTprintf().
//
//*****************************************************************************
//void
//ConfigureUART3(void)
//{
//// Enable GPIOC
//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
//while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOC)));
////
//// Enable UART1
////
//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART3);
//while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_UART3)));
//
//
////
//// Configure GPIO Pins for UART mode.
////
//ROM_GPIOPinConfigure(GPIO_PC6_U3RX);
//ROM_GPIOPinConfigure(GPIO_PC7_U3TX);
//ROM_GPIOPinTypeUART(GPIO_PORTC_BASE, GPIO_PIN_6 | GPIO_PIN_7);
//
//
//
//
////
//// Use the internal 16MHz oscillator as the UART clock source.
////
//UARTClockSourceSet(UART3_BASE, UART_CLOCK_PIOSC);
//UARTConfigSetExpClk(UART3_BASE,16000000,115200,UART_CONFIG_PAR_NONE|UART_CONFIG_STOP_ONE|UART_CONFIG_WLEN_8);
//UARTEnable(UART3_BASE);
//}void
ConfigureUART4(void)
{// Enable GPIOCROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOC)));//// Enable UART1//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART4);while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_UART4)));//// Configure GPIO Pins for UART mode.//ROM_GPIOPinConfigure(GPIO_PC4_U4RX);ROM_GPIOPinConfigure(GPIO_PC5_U4TX);ROM_GPIOPinTypeUART(GPIO_PORTC_BASE, GPIO_PIN_4 | GPIO_PIN_5);//// Use the internal 16MHz oscillator as the UART clock source.//UARTClockSourceSet(UART4_BASE, UART_CLOCK_PIOSC);UARTConfigSetExpClk(UART4_BASE,16000000,115200,UART_CONFIG_PAR_NONE|UART_CONFIG_STOP_ONE|UART_CONFIG_WLEN_8);UARTEnable(UART4_BASE);
}//*****************************************************************************
//
// This example demonstrates the use of bit-banding to set individual bits
// within a word of SRAM.
//
//*****************************************************************************
int
main(void)
{//// Set the clocking to run directly from the crystal.//ROM_SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN |SYSCTL_XTAL_16MHZ);//// Initialize the UART interface.//ConfigureUART4();//// Loop forever.//while(1){UARTCharPut(UART4_BASE,0xAA);}
}

xyz549040622:

UART5小练

//*****************************************************************************
//
// bitband.c - Bit-band manipulation example.
//
// Copyright (c) 2012-2017 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 2.1.4.178 of the EK-TM4C123GXL Firmware Package.
//
//*****************************************************************************#include <stdint.h>
#include <stdbool.h>
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "driverlib/debug.h"
#include "driverlib/gpio.h"
#include "driverlib/fpu.h"
#include "driverlib/pin_map.h"
#include "driverlib/sysctl.h"
#include "driverlib/systick.h"
#include "driverlib/rom.h"
#include "driverlib/uart.h"
#include "utils/uartstdio.h"//*****************************************************************************
//
//! \addtogroup example_list
//! <h1>Bit-Banding (bitband)</h1>
//!
//! This example application demonstrates the use of the bit-banding
//! capabilities of the Cortex-M4F microprocessor.All of SRAM and all of the
//! peripherals reside within bit-band regions, meaning that bit-banding
//! operations can be applied to any of them.In this example, a variable in
//! SRAM is set to a particular value one bit at a time using bit-banding
//! operations (it would be more efficient to do a single non-bit-banded write;
//! this simply demonstrates the operation of bit-banding).
//
//*****************************************************************************//*****************************************************************************
//
// The value that is to be modified via bit-banding.
//
//*****************************************************************************
static volatile uint32_t g_ui32Value;//*****************************************************************************
//
// The error routine that is called if the driver library encounters an error.
//
//*****************************************************************************
#ifdef DEBUG
void
__error__(char *pcFilename, uint32_t ui32Line)
{while(1){//// Hang on runtime error.//}
}
#endif//*****************************************************************************
//
// Configure the UART and its pins.This must be called before UARTprintf().
//
//*****************************************************************************
//void
//ConfigureUART3(void)
//{
//// Enable GPIOC
//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
//while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOC)));
////
//// Enable UART1
////
//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART3);
//while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_UART3)));
//
//
////
//// Configure GPIO Pins for UART mode.
////
//ROM_GPIOPinConfigure(GPIO_PC6_U3RX);
//ROM_GPIOPinConfigure(GPIO_PC7_U3TX);
//ROM_GPIOPinTypeUART(GPIO_PORTC_BASE, GPIO_PIN_6 | GPIO_PIN_7);
//
//
//
//
////
//// Use the internal 16MHz oscillator as the UART clock source.
////
//UARTClockSourceSet(UART3_BASE, UART_CLOCK_PIOSC);
//UARTConfigSetExpClk(UART3_BASE,16000000,115200,UART_CONFIG_PAR_NONE|UART_CONFIG_STOP_ONE|UART_CONFIG_WLEN_8);
//UARTEnable(UART3_BASE);
//}//void
//ConfigureUART4(void)
//{
//// Enable GPIOC
//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
//while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOC)));
////
//// Enable UART1
////
//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART4);
//while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_UART4)));
//
//
////
//// Configure GPIO Pins for UART mode.
////
//ROM_GPIOPinConfigure(GPIO_PC4_U4RX);
//ROM_GPIOPinConfigure(GPIO_PC5_U4TX);
//ROM_GPIOPinTypeUART(GPIO_PORTC_BASE, GPIO_PIN_4 | GPIO_PIN_5);
//
//
//
//
////
//// Use the internal 16MHz oscillator as the UART clock source.
////
//UARTClockSourceSet(UART4_BASE, UART_CLOCK_PIOSC);
//UARTConfigSetExpClk(UART4_BASE,16000000,115200,UART_CONFIG_PAR_NONE|UART_CONFIG_STOP_ONE|UART_CONFIG_WLEN_8);
//UARTEnable(UART4_BASE);
//}void
ConfigureUART5(void)
{// Enable GPIOCROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOE)));//// Enable UART1//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART5);while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_UART5)));//// Configure GPIO Pins for UART mode.//ROM_GPIOPinConfigure(GPIO_PE4_U5RX);ROM_GPIOPinConfigure(GPIO_PE5_U5TX);ROM_GPIOPinTypeUART(GPIO_PORTE_BASE, GPIO_PIN_4 | GPIO_PIN_5);//// Use the internal 16MHz oscillator as the UART clock source.//UARTClockSourceSet(UART5_BASE, UART_CLOCK_PIOSC);UARTConfigSetExpClk(UART5_BASE,16000000,115200,UART_CONFIG_PAR_NONE|UART_CONFIG_STOP_ONE|UART_CONFIG_WLEN_8);UARTEnable(UART5_BASE);
}
//*****************************************************************************
//
// This example demonstrates the use of bit-banding to set individual bits
// within a word of SRAM.
//
//*****************************************************************************
int
main(void)
{//// Set the clocking to run directly from the crystal.//ROM_SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN |SYSCTL_XTAL_16MHZ);//// Initialize the UART interface.//ConfigureUART5();//// Loop forever.//while(1){UARTCharPut(UART5_BASE,0xAA);}
}

xyz549040622:

UART7小练

//*****************************************************************************
//
// bitband.c - Bit-band manipulation example.
//
// Copyright (c) 2012-2017 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 2.1.4.178 of the EK-TM4C123GXL Firmware Package.
//
//*****************************************************************************#include <stdint.h>
#include <stdbool.h>
#include "inc/hw_memmap.h"
#include "inc/hw_types.h"
#include "driverlib/debug.h"
#include "driverlib/gpio.h"
#include "driverlib/fpu.h"
#include "driverlib/pin_map.h"
#include "driverlib/sysctl.h"
#include "driverlib/systick.h"
#include "driverlib/rom.h"
#include "driverlib/uart.h"
#include "utils/uartstdio.h"//*****************************************************************************
//
//! \addtogroup example_list
//! <h1>Bit-Banding (bitband)</h1>
//!
//! This example application demonstrates the use of the bit-banding
//! capabilities of the Cortex-M4F microprocessor.All of SRAM and all of the
//! peripherals reside within bit-band regions, meaning that bit-banding
//! operations can be applied to any of them.In this example, a variable in
//! SRAM is set to a particular value one bit at a time using bit-banding
//! operations (it would be more efficient to do a single non-bit-banded write;
//! this simply demonstrates the operation of bit-banding).
//
//*****************************************************************************//*****************************************************************************
//
// The value that is to be modified via bit-banding.
//
//*****************************************************************************
static volatile uint32_t g_ui32Value;//*****************************************************************************
//
// The error routine that is called if the driver library encounters an error.
//
//*****************************************************************************
#ifdef DEBUG
void
__error__(char *pcFilename, uint32_t ui32Line)
{while(1){//// Hang on runtime error.//}
}
#endif//*****************************************************************************
//
// Configure the UART and its pins.This must be called before UARTprintf().
//
//*****************************************************************************
//void
//ConfigureUART3(void)
//{
//// Enable GPIOC
//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
//while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOC)));
////
//// Enable UART1
////
//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART3);
//while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_UART3)));
//
//
////
//// Configure GPIO Pins for UART mode.
////
//ROM_GPIOPinConfigure(GPIO_PC6_U3RX);
//ROM_GPIOPinConfigure(GPIO_PC7_U3TX);
//ROM_GPIOPinTypeUART(GPIO_PORTC_BASE, GPIO_PIN_6 | GPIO_PIN_7);
//
//
//
//
////
//// Use the internal 16MHz oscillator as the UART clock source.
////
//UARTClockSourceSet(UART3_BASE, UART_CLOCK_PIOSC);
//UARTConfigSetExpClk(UART3_BASE,16000000,115200,UART_CONFIG_PAR_NONE|UART_CONFIG_STOP_ONE|UART_CONFIG_WLEN_8);
//UARTEnable(UART3_BASE);
//}//void
//ConfigureUART4(void)
//{
//// Enable GPIOC
//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOC);
//while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOC)));
////
//// Enable UART1
////
//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART4);
//while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_UART4)));
//
//
////
//// Configure GPIO Pins for UART mode.
////
//ROM_GPIOPinConfigure(GPIO_PC4_U4RX);
//ROM_GPIOPinConfigure(GPIO_PC5_U4TX);
//ROM_GPIOPinTypeUART(GPIO_PORTC_BASE, GPIO_PIN_4 | GPIO_PIN_5);
//
//
//
//
////
//// Use the internal 16MHz oscillator as the UART clock source.
////
//UARTClockSourceSet(UART4_BASE, UART_CLOCK_PIOSC);
//UARTConfigSetExpClk(UART4_BASE,16000000,115200,UART_CONFIG_PAR_NONE|UART_CONFIG_STOP_ONE|UART_CONFIG_WLEN_8);
//UARTEnable(UART4_BASE);
//}//void
//ConfigureUART5(void)
//{
//// Enable GPIOC
//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);
//while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOE)));
////
//// Enable UART1
////
//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART5);
//while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_UART5)));
//
//
////
//// Configure GPIO Pins for UART mode.
////
//ROM_GPIOPinConfigure(GPIO_PE4_U5RX);
//ROM_GPIOPinConfigure(GPIO_PE5_U5TX);
//ROM_GPIOPinTypeUART(GPIO_PORTE_BASE, GPIO_PIN_4 | GPIO_PIN_5);
//
//
//
//
////
//// Use the internal 16MHz oscillator as the UART clock source.
////
//UARTClockSourceSet(UART5_BASE, UART_CLOCK_PIOSC);
//UARTConfigSetExpClk(UART5_BASE,16000000,115200,UART_CONFIG_PAR_NONE|UART_CONFIG_STOP_ONE|UART_CONFIG_WLEN_8);
//UARTEnable(UART5_BASE);
//}void
ConfigureUART7(void)
{// Enable GPIOCROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOE);while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_GPIOE)));//// Enable UART1//ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_UART7);while(!(SysCtlPeripheralReady(SYSCTL_PERIPH_UART7)));//// Configure GPIO Pins for UART mode.//ROM_GPIOPinConfigure(GPIO_PE0_U7RX);ROM_GPIOPinConfigure(GPIO_PE1_U7TX);ROM_GPIOPinTypeUART(GPIO_PORTE_BASE, GPIO_PIN_0 | GPIO_PIN_1);//// Use the internal 16MHz oscillator as the UART clock source.//UARTClockSourceSet(UART7_BASE, UART_CLOCK_PIOSC);UARTConfigSetExpClk(UART7_BASE,16000000,115200,UART_CONFIG_PAR_NONE|UART_CONFIG_STOP_ONE|UART_CONFIG_WLEN_8);UARTEnable(UART7_BASE);
}
//*****************************************************************************
//
// This example demonstrates the use of bit-banding to set individual bits
// within a word of SRAM.
//
//*****************************************************************************
int
main(void)
{//// Set the clocking to run directly from the crystal.//ROM_SysCtlClockSet(SYSCTL_SYSDIV_1 | SYSCTL_USE_OSC | SYSCTL_OSC_MAIN |SYSCTL_XTAL_16MHZ);//// Initialize the UART interface.//ConfigureUART7();//// Loop forever.//while(1){UARTCharPut(UART7_BASE,0xAA);}
}

Susan Yang:

回复 xyz549040622:

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