/*
* LED Blink
*
*/
#include
#include
int main() {
volatile uint32_t *rcgcgpio = (uint32_t *)(0x400FE000 + 0x608);
volatile uint32_t *gpiodir = (uint32_t *)(0x40025000 + 0x400);
volatile uint32_t *gpioden = (uint32_t *)(0x40025000 + 0x51C);
volatile uint32_t *gpiodata = (uint32_t *)(0x40025000);
while (true)
continue;
}
/******************************************************************************
*
* hello.ld – Linker configuration file for hello.
*
* 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.
*
*****************************************************************************/
MEMORY
{
FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 0x00040000
SRAM (rwx) : ORIGIN = 0x20000000, LENGTH = 0x00008000
}
SECTIONS
{
.text :
{
_text = .;
KEEP(*(.isr_vector))
*(.text*)
*(.rodata*)
_etext = .;
} > FLASH
.data : AT(ADDR(.text) + SIZEOF(.text))
{
_data = .;
_ldata = LOADADDR (.data);
*(vtable)
*(.data*)
_edata = .;
} > SRAM
.bss :
{
_bss = .;
*(.bss*)
*(COMMON)
_ebss = .;
} > SRAM
}
//*****************************************************************************
//
// startup.c – Startup code for use with GNU tools.
//
// 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
/* #include “inc/hw_nvic.h” */
#define NVIC_CPAC 0xE000ED88 // Coprocessor Access Control
#define NVIC_CPAC_CP11_M 0x00C00000 // CP11 Coprocessor Access
// Privilege
#define NVIC_CPAC_CP11_FULL 0x00C00000 // Full Access
#define NVIC_CPAC_CP10_M 0x00300000 // CP10 Coprocessor Access
// Privilege
#define NVIC_CPAC_CP10_FULL 0x00300000 // Full Access
/* #include “inc/hw_types.h” */
#define HWREG(x) \
(*((volatile uint32_t *)(x)))
//*****************************************************************************
//
// Forward declaration of the default fault handlers.
//
//*****************************************************************************
void ResetISR(void);
static void NmiSR(void);
static void FaultISR(void);
static void IntDefaultHandler(void);
//*****************************************************************************
//
// The entry point for the application.
//
//*****************************************************************************
extern int main(void);
//*****************************************************************************
//
// Reserve space for the system stack.
//
//*****************************************************************************
static uint32_t pui32Stack[128];
//*****************************************************************************
//
// The vector table. Note that the proper constructs must be placed on this to
// ensure that it ends up at physical address 0x0000.0000.
//
//*****************************************************************************
__attribute__ ((section(“.isr_vector”)))
void (* const g_pfnVectors[])(void) =
{
(void (*)(void))((uint32_t)pui32Stack + sizeof(pui32Stack)),
// The initial stack pointer
ResetISR, // The reset handler
NmiSR, // The NMI handler
FaultISR, // The hard fault handler
IntDefaultHandler, // The MPU fault handler
IntDefaultHandler, // The bus fault handler
IntDefaultHandler, // The usage fault handler
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
IntDefaultHandler, // SVCall handler
IntDefaultHandler, // Debug monitor handler
0, // Reserved
IntDefaultHandler, // The PendSV handler
IntDefaultHandler, // The SysTick handler
IntDefaultHandler, // GPIO Port A
IntDefaultHandler, // GPIO Port B
IntDefaultHandler, // GPIO Port C
IntDefaultHandler, // GPIO Port D
IntDefaultHandler, // GPIO Port E
IntDefaultHandler, // UART0 Rx and Tx
IntDefaultHandler, // UART1 Rx and Tx
IntDefaultHandler, // SSI0 Rx and Tx
IntDefaultHandler, // I2C0 Master and Slave
IntDefaultHandler, // PWM Fault
IntDefaultHandler, // PWM Generator 0
IntDefaultHandler, // PWM Generator 1
IntDefaultHandler, // PWM Generator 2
IntDefaultHandler, // Quadrature Encoder 0
IntDefaultHandler, // ADC Sequence 0
IntDefaultHandler, // ADC Sequence 1
IntDefaultHandler, // ADC Sequence 2
IntDefaultHandler, // ADC Sequence 3
IntDefaultHandler, // Watchdog timer
IntDefaultHandler, // Timer 0 subtimer A
IntDefaultHandler, // Timer 0 subtimer B
IntDefaultHandler, // Timer 1 subtimer A
IntDefaultHandler, // Timer 1 subtimer B
IntDefaultHandler, // Timer 2 subtimer A
IntDefaultHandler, // Timer 2 subtimer B
IntDefaultHandler, // Analog Comparator 0
IntDefaultHandler, // Analog Comparator 1
IntDefaultHandler, // Analog Comparator 2
IntDefaultHandler, // System Control (PLL, OSC, BO)
IntDefaultHandler, // FLASH Control
IntDefaultHandler, // GPIO Port F
IntDefaultHandler, // GPIO Port G
IntDefaultHandler, // GPIO Port H
IntDefaultHandler, // UART2 Rx and Tx
IntDefaultHandler, // SSI1 Rx and Tx
IntDefaultHandler, // Timer 3 subtimer A
IntDefaultHandler, // Timer 3 subtimer B
IntDefaultHandler, // I2C1 Master and Slave
IntDefaultHandler, // Quadrature Encoder 1
IntDefaultHandler, // CAN0
IntDefaultHandler, // CAN1
0, // Reserved
0, // Reserved
IntDefaultHandler, // Hibernate
IntDefaultHandler, // USB0
IntDefaultHandler, // PWM Generator 3
IntDefaultHandler, // uDMA Software Transfer
IntDefaultHandler, // uDMA Error
IntDefaultHandler, // ADC1 Sequence 0
IntDefaultHandler, // ADC1 Sequence 1
IntDefaultHandler, // ADC1 Sequence 2
IntDefaultHandler, // ADC1 Sequence 3
0, // Reserved
0, // Reserved
IntDefaultHandler, // GPIO Port J
IntDefaultHandler, // GPIO Port K
IntDefaultHandler, // GPIO Port L
IntDefaultHandler, // SSI2 Rx and Tx
IntDefaultHandler, // SSI3 Rx and Tx
IntDefaultHandler, // UART3 Rx and Tx
IntDefaultHandler, // UART4 Rx and Tx
IntDefaultHandler, // UART5 Rx and Tx
IntDefaultHandler, // UART6 Rx and Tx
IntDefaultHandler, // UART7 Rx and Tx
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
IntDefaultHandler, // I2C2 Master and Slave
IntDefaultHandler, // I2C3 Master and Slave
IntDefaultHandler, // Timer 4 subtimer A
IntDefaultHandler, // Timer 4 subtimer B
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
0, // Reserved
IntDefaultHandler, // Timer 5 subtimer A
IntDefaultHandler, // Timer 5 subtimer B
IntDefaultHandler, // Wide Timer 0 subtimer A
IntDefaultHandler, // Wide Timer 0 subtimer B
IntDefaultHandler, // Wide Timer 1 subtimer A
IntDefaultHandler, // Wide Timer 1 subtimer B
IntDefaultHandler, // Wide Timer 2 subtimer A
IntDefaultHandler, // Wide Timer 2 subtimer B
IntDefaultHandler, // Wide Timer 3 subtimer A
IntDefaultHandler, // Wide Timer 3 subtimer B
IntDefaultHandler, // Wide Timer 4 subtimer A
IntDefaultHandler, // Wide Timer 4 subtimer B
IntDefaultHandler, // Wide Timer 5 subtimer A
IntDefaultHandler, // Wide Timer 5 subtimer B
IntDefaultHandler, // FPU
0, // Reserved
0, // Reserved
IntDefaultHandler, // I2C4 Master and Slave
IntDefaultHandler, // I2C5 Master and Slave
IntDefaultHandler, // GPIO Port M
IntDefaultHandler, // GPIO Port N
IntDefaultHandler, // Quadrature Encoder 2
0, // Reserved
0, // Reserved
IntDefaultHandler, // GPIO Port P (Summary or P0)
IntDefaultHandler, // GPIO Port P1
IntDefaultHandler, // GPIO Port P2
IntDefaultHandler, // GPIO Port P3
IntDefaultHandler, // GPIO Port P4
IntDefaultHandler, // GPIO Port P5
IntDefaultHandler, // GPIO Port P6
IntDefaultHandler, // GPIO Port P7
IntDefaultHandler, // GPIO Port Q (Summary or Q0)
IntDefaultHandler, // GPIO Port Q1
IntDefaultHandler, // GPIO Port Q2
IntDefaultHandler, // GPIO Port Q3
IntDefaultHandler, // GPIO Port Q4
IntDefaultHandler, // GPIO Port Q5
IntDefaultHandler, // GPIO Port Q6
IntDefaultHandler, // GPIO Port Q7
IntDefaultHandler, // GPIO Port R
IntDefaultHandler, // GPIO Port S
IntDefaultHandler, // PWM 1 Generator 0
IntDefaultHandler, // PWM 1 Generator 1
IntDefaultHandler, // PWM 1 Generator 2
IntDefaultHandler, // PWM 1 Generator 3
IntDefaultHandler // PWM 1 Fault
};
//*****************************************************************************
//
// The following are constructs created by the linker, indicating where the
// the “data” and “bss” segments reside in memory. The initializers for the
// for the “data” segment resides immediately following the “text” segment.
//
//*****************************************************************************
extern uint32_t _ldata;
extern uint32_t _data;
extern uint32_t _edata;
extern uint32_t _bss;
extern uint32_t _ebss;
//*****************************************************************************
//
// This is the code that gets called when the processor first starts execution
// following a reset event. Only the absolutely necessary set is performed,
// after which the application supplied entry() routine is called. Any fancy
// actions (such as making decisions based on the reset cause register, and
// resetting the bits in that register) are left solely in the hands of the
// application.
//
//*****************************************************************************
void
ResetISR(void)
{
uint32_t *pui32Src, *pui32Dest;
//
// Copy the data segment initializers from flash to SRAM.
//
pui32Src = &_ldata;
for(pui32Dest = &_data; pui32Dest < &_edata; )
{
*pui32Dest++ = *pui32Src++;
}
//
// Zero fill the bss segment.
//
__asm(" ldr r0, =_bss\n"
" ldr r1, =_ebss\n"
" mov r2, #0\n"
" .thumb_func\n"
"zero_loop:\n"
" cmp r0, r1\n"
" it lt\n"
" strlt r2, [r0], #4\n"
" blt zero_loop");
//
// Enable the floating-point unit. This must be done here to handle the
// case where main() uses floating-point and the function prologue saves
// floating-point registers (which will fault if floating-point is not
// enabled). Any configuration of the floating-point unit using DriverLib
// APIs must be done here prior to the floating-point unit being enabled.
//
// Note that this does not use DriverLib since it might not be included in
// this project.
//
HWREG(NVIC_CPAC) = ((HWREG(NVIC_CPAC) &
~(NVIC_CPAC_CP10_M | NVIC_CPAC_CP11_M)) |
NVIC_CPAC_CP10_FULL | NVIC_CPAC_CP11_FULL);
//
// Call the application's entry point.
//
main();
}
//*****************************************************************************
//
// This is the code that gets called when the processor receives a NMI. This
// simply enters an infinite loop, preserving the system state for examination
// by a debugger.
//
//*****************************************************************************
static void
NmiSR(void)
{
//
// Enter an infinite loop.
//
while(1)
{
}
}
//*****************************************************************************
//
// This is the code that gets called when the processor receives a fault
// interrupt. This simply enters an infinite loop, preserving the system state
// for examination by a debugger.
//
//*****************************************************************************
static void
FaultISR(void)
{
//
// Enter an infinite loop.
//
while(1)
{
}
}
//*****************************************************************************
//
// This is the code that gets called when the processor receives an unexpected
// interrupt. This simply enters an infinite loop, preserving the system state
// for examination by a debugger.
//
//*****************************************************************************
static void
IntDefaultHandler(void)
{
//
// Go into an infinite loop.
//
while(1)
{
}
}
{
// See https://go.microsoft.com/fwlink/?LinkId=733558
// for the documentation about the tasks.json format
“version”: “2.0.0”,
“tasks”: [
{
“label”: “make”,
“command”: “make”,
“problemMatcher”: {
“owner”: “cpp”,
“fileLocation”: [
“relative”,
“${workspaceFolder}”
],
“pattern”: {
“regexp”: “^(.*):(\\d+):(\\d+):\\s+(warning|error):\\s+(.*)$”,
“file”: 1,
“line”: 2,
“column”: 3,
“severity”: 4,
“message”: 5
}
},
“group”: {
“kind”: “build”,
“isDefault”: true
}
},
{
“label”: “make clean”,
“command”: “make”,
“args”: [“clean”],
“problemMatcher”: {
“owner”: “cpp”,
“fileLocation”: [
“relative”,
“${workspaceFolder}”
],
“pattern”: {
“regexp”: “^(.*):(\\d+):(\\d+):\\s+(warning|error):\\s+(.*)$”,
“file”: 1,
“line”: 2,
“column”: 3,
“severity”: 4,
“message”: 5
}
},
}
]
}
{
// Use IntelliSense to learn about possible attributes.
// Hover to view descriptions of existing attributes.
// For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
// monitor reset halt
“version”: “0.2.0”,
“configurations”: [
{
“name”: “(gdb) Launch”,
“type”: “cppdbg”,
“request”: “launch”,
“program”: “${workspaceFolder}/led.axf”,
“externalConsole”: false,
“args”: [],
“cwd”: “${workspaceFolder}”,
“environment”: [],
“preLaunchTask”:”${defaultBuildTask}”,
“miDebuggerServerAddress”: “localhost:3333”,
“debugServerPath”: “openocd.exe”,
“debugServerArgs”: “-f board/ek-tm4c123gxl.cfg”,
“serverStarted”: “Info : ICDI Firmware version”,
“filterStderr”: true,
“filterStdout”: false,
“MIMode”: “gdb”,
“miDebuggerPath”: “arm-none-eabi-gdb.exe”,
“miDebuggerArgs”: “${workspaceFolder}/led.axf”,
“stopAtEntry”: true,
“logging”: {
//”engineLogging”: true,
//”trace”: true,
//”traceResponse”: true
},
“targetArchitecture”: “arm”,
“setupCommands”: [
],
“customLaunchSetupCommands”: [
{“text”: “target remote localhost:3333”, “description”: “”, “ignoreFailures”: false},
{“text”: “monitor reset halt”, “description”: “”, “ignoreFailures”: false},
{“text”: “load”, “description”: “”, “ignoreFailures”: false}
{“text”: “tbreak main”, “description”: “”, “ignoreFailures”: false}
],
“launchCompleteCommand”: “exec-continue”,
}
]
}