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@@ -14,28 +14,30 @@
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#include "board.h"
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/* global variables */
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unsigned long blinkcount;
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unsigned long blinkcount;
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void blinker(
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unsigned char code)
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{
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void blinker(unsigned char code) {
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volatile AT91PS_PIO pPIO = AT91C_BASE_PIOA; /* pointer to PIO register structure */
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volatile unsigned int j,k; /* loop counters */
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volatile unsigned int j, k; /* loop counters */
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/* endless loop */
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while (1) {
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while (1) {
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/* count out the proper number of blinks */
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for (j = code; j != 0; j--) {
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for (j = code; j != 0; j--) {
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/* turn LED1 (DS1) on */
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pPIO->PIO_CODR = LED1;
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/* wait 250 msec */
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for (k = 600000; k != 0; k-- );
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for (k = 600000; k != 0; k--);
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/* turn LED1 (DS1) off */
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pPIO->PIO_SODR = LED1;
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/* wait 250 msec */
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for (k = 600000; k != 0; k-- );
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for (k = 600000; k != 0; k--);
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}
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/* wait 2 seconds */
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for (k = 5000000; (code != 0) && (k != 0); k-- );
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for (k = 5000000; (code != 0) && (k != 0); k--);
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blinkcount++;
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}
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}
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