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34 lines
921 B
C
34 lines
921 B
C
5 years ago
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#include "TM4C123GH6PM.h"
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#include "bsp.h"
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#include <intrinsics.h>
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int main() {
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SYSCTL->RCGCGPIO |= (1U << 5); /* enable Run mode for GPIOF */
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SYSCTL->GPIOHBCTL |= (1U << 5); /* enable AHB for GPIOF */
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4 years ago
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/* make sure the Run Mode and AHB-enable take effects
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* before accessing the peripherals
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*/
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__ISB(); /* Instruction Synchronization Barrier */
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__DSB(); /* Data Memory Barrier */
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5 years ago
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GPIOF_AHB->DIR |= (LED_RED | LED_BLUE | LED_GREEN);
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GPIOF_AHB->DEN |= (LED_RED | LED_BLUE | LED_GREEN);
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4 years ago
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/* turn all LEDs off */
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GPIOF_AHB->DATA_Bits[LED_RED | LED_BLUE | LED_GREEN] = 0U;
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5 years ago
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SysTick->LOAD = SYS_CLOCK_HZ/2U - 1U;
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SysTick->VAL = 0U;
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SysTick->CTRL = (1U << 2) | (1U << 1) | 1U;
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SysTick_Handler();
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__enable_interrupt();
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while (1) {
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GPIOF_AHB->DATA_Bits[LED_GREEN] = LED_GREEN;
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GPIOF_AHB->DATA_Bits[LED_GREEN] = 0U;
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}
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//return 0;
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}
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