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94 lines
1.5 KiB
C
94 lines
1.5 KiB
C
#include <stdint.h>
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#include "tm4c_cmsis.h"
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#include "delay.h"
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#define LED_RED (1U << 1)
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#define LED_BLUE (1U << 2)
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#define LED_GREEN (1U << 3)
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typedef struct {
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uint8_t y;
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uint16_t x;
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} Point;
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Point p1 = {
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0x12U,
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0xABCDU
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};
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Point p2/*[] = {
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{ 0x10U, 0xA010U},
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{ 0x11U, 0xA111U}
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}*/;
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typedef struct {
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Point top_left;
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Point bottom_right;
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} Window;
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typedef struct {
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Point corners[3];
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} Triangle;
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Window w, w2;
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Triangle const t = {
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{
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{ 1, 2},
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{ 1, 3},
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{ 1, 4}
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}
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};
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int main() {
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Point *pp;
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Window *wp;
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volatile uint32_t x = ~0U;
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volatile uint32_t y = CLZ6(x);
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p1.x = sizeof(Point);
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p1.y = sizeof(p1.x);
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w.top_left.x = 1U;
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w.bottom_right.y = 2U;
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//t.corners[0].x = 1U;
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//t.corners[2].y = 2U;
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p2 = t.corners[0];
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w2 = w;
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//pp = (Point *)0x10000000;
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pp = &p1;
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wp = &w2;
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(*pp).x = 1U;
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(*wp).top_left = *pp;
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pp->x = 1U;
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wp->top_left = *pp;
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SYSCTL->RCGC2 |= (1U << 5); /* enable clock for GPIOF */
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SYSCTL->GPIOHSCTL |= (1U << 5); /* enable AHB for GPIOF */
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GPIOF_HS->DIR |= (LED_RED | LED_BLUE | LED_GREEN);
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GPIOF_HS->DEN |= (LED_RED | LED_BLUE | LED_GREEN);
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GPIOF_HS->DATA_Bits[LED_BLUE] = LED_BLUE;
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while (1) {
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GPIOF_HS->DATA_Bits[LED_RED] = LED_RED;
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delay(500000);
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GPIOF_HS->DATA_Bits[LED_RED] = 0;
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delay(500000);
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}
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//return 0;
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}
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void assert_failed (char const *file, int line) {
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/* log the problem in non-volatile memory... */
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NVIC_SystemReset(); /* reset the system! */
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}
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