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/*
* Copyright (c) 2018, Shawn D'silva <shawn@shawndsilva.com>
* All rights reserved.
*
* This file is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This file is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* File: startup.c
* Author: Shawn D'silva <https://www.shawndsilva.com>.
* Version: 1.0.0.
* Description: startup file for the TM4C Launchpad board,defines the vector table,
and most importantly the Reset_Handler enabling the TM4C to execute the main program when the <RESET>
button is pressed on board
*/
#include "startup.h"
// +-----------------------------------------------------------------------------------+
// + Vector Table +
// +-----------------------------------------------------------------------------------+
__attribute__((section(".vector_table"))) //marks this vector table as a part of the section "".vector_table"
//in the linker script
const vector_table_t vectors[] = {
{.stack_top = &_stack_ptr}, // 0 Pointer to top of Stack
{.isr = Reset_Handler}, // 1 Reset handler is called when the <RESET> button is pressed
{.isr = NMI_Handler}, // 2 Non-Maskable Interrupt handler
{.isr = HardFault_Handler}, // 3 Hard Fault Handler
{.isr = MemManageFault_Handler}, // 4 Memory management fault Handler
{.isr = BusFault_Handler}, // 5 Bus Fault Handler
{.isr = UsageFault_Handler}, // 6 Usage Fault Handler
{.isr = 0}, // 7 Reserved
{.isr = 0}, // 8 Reserved
{.isr = 0}, // 9 Reserved
{.isr = 0}, // 10 Reserved
{.isr = SVC_Handler}, // 11 SuperVisor Call Handler
{.isr = DebugMonitor_Handler}, // 12 Debug Monitor Handler
{.isr = 0}, // 13 Reserved
{.isr = PendSV_Handler}, // 14 Pendeable interrupt driven request
{.isr = SysTick_Handler}, // 15 SysTick Timer handler
{.isr = GPIOPortA_ISR}, // 16 GPIO Port A Interrupt Service Routine
{.isr = GPIOPortB_ISR}, // 17 GPIO Port B Interrupt Service Routine
{.isr = GPIOPortC_ISR}, // 18 GPIO Port C Interrupt Service Routine
{.isr = GPIOPortD_ISR}, // 19 GPIO Port D Interrupt Service Routine
{.isr = GPIOPortE_ISR}, // 20 GPIO Port C Interrupt Service Routine
{.isr = UART0_ISR}, // 21 UART 0
{.isr = UART1_ISR}, // 22 UART 1
{.isr = SPI0_ISR}, // 23 SPI 0
{.isr = I2C0_ISR},
{.isr = PWM0Fault_ISR},
{.isr = PWM0Generator0_ISR},
{.isr = PWM0Generator1_ISR},
{.isr = PWM0Generator2_ISR},
{.isr = QEI0_ISR},
{.isr = ADC0Sequence0_ISR},
{.isr = ADC0Sequence1_ISR},
{.isr = ADC0Sequence2_ISR},
{.isr = ADC0Sequence3_ISR},
{.isr = WatchDogTimer_ISR},
{.isr = Timer0A_ISR},
{.isr = Timer0B_ISR},
{.isr = Timer1A_ISR},
{.isr = Timer1B_ISR},
{.isr = Timer2A_ISR},
{.isr = Timer2B_ISR},
{.isr = AnalogComparator0_ISR},
{.isr = AnalogComparator1_ISR},
{.isr = 0},
{.isr = SystemCtrl_ISR},
{.isr = FlashCtrl_ISR},
{.isr = GPIOPortF_ISR},
{.isr = 0},
{.isr = 0},
{.isr = UART2_ISR},
{.isr = SPI1_ISR},
{.isr = Timer3A_ISR},
{.isr = Timer3B_ISR},
{.isr = I2C1_ISR},
{.isr = QEI1_ISR},
{.isr = CAN0_ISR},
{.isr = CAN1_ISR},
{.isr = 0},
{.isr = 0},
{.isr = Hibernation_ISR},
{.isr = USB0_ISR},
{.isr = PWM0Generator3_ISR},
{.isr = UDMASoftware_ISR},
{.isr = UDMAError_ISR},
{.isr = ADC1Sequence0_ISR},
{.isr = ADC1Sequence1_ISR},
{.isr = ADC1Sequence2_ISR},
{.isr = ADC1Sequence3_ISR},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = SPI2_ISR},
{.isr = SPI3_ISR},
{.isr = UART3_ISR},
{.isr = UART4_ISR},
{.isr = UART5_ISR},
{.isr = UART6_ISR},
{.isr = UART7_ISR},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = I2C2_ISR},
{.isr = I2C3_ISR},
{.isr = Timer4A_ISR},
{.isr = Timer4B_ISR},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0}, // 95 Reserved
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = Timer5A_ISR},
{.isr = Timer5B_ISR},
{.isr = WideTimer0A_ISR},
{.isr = WideTimer0B_ISR},
{.isr = WideTimer1A_ISR},
{.isr = WideTimer1B_ISR},
{.isr = WideTimer2A_ISR},
{.isr = WideTimer2B_ISR},
{.isr = WideTimer3A_ISR},
{.isr = WideTimer3B_ISR},
{.isr = WideTimer4A_ISR},
{.isr = WideTimer4B_ISR},
{.isr = WideTimer5A_ISR},
{.isr = WideTimer5B_ISR},
{.isr = SystemException_ISR},
{.isr = 0}, //123 Reserved
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = 0},
{.isr = PWM1Generator0_ISR},
{.isr = PWM1Generator1_ISR},
{.isr = PWM1Generator2_ISR},
{.isr = PWM1Generator3_ISR},
{.isr = PWM1Fault_ISR},
};
// +-----------------------------------------------------------------------------------+
// + Implementations of Interrupt Service Routines +
// +-----------------------------------------------------------------------------------+
void Reset_Handler(void)
{
int *src, *dest;
/* copying of the .data values into RAM */
src = &_etext;
for (dest = &_data; dest < &_edata;)
{
*dest++ = *src++;
}
/* initializing .bss values to zero*/
for (dest = &_bss; dest < &_ebss;)
{
*dest++ = 0;
}
/* your program's main() called */
main();
}
void Default_Handler(void)
{
while (1)
{
//does literally nothing except infinitely loop
}
}
/*****************************************END OF FILE*********************************************/
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