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25 lines
531 B
C
25 lines
531 B
C
#include "lm4f120h5qr.h"
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int main() {
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SYSCTL_RCGCGPIO_R = 0x20U; /* enable clock for GPIOF */
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GPIO_PORTF_DIR_R = 0x0EU; // set pins 1,2, and 3 as outputs
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GPIO_PORTF_DEN_R = 0x0EU;
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while (1) {
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GPIO_PORTF_DATA_R = 0x02U;
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int volatile counter = 0;
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while (counter < 1000000) { // delay loop
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++counter;
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}
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GPIO_PORTF_DATA_R = 0x00U;
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counter = 0;
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while (counter < 1000000) { // delay loop
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++counter;
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}
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}
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//return 0;
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}
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