13 lines
515 B
C
13 lines
515 B
C
#include<stdint.h>
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#include<stdbool.h>
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#include"tm4c123gh6pm.h"
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/* Systick memory mapped registers */
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#define STCTRL *((volatile long *) 0xE000E010) // control and status
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#define STRELOAD *((volatile long *) 0xE000E014) // reload value
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#define STCURRENT *((volatile long *) 0xE000E018) // current value
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#define ENABLE (1 << 0) // bit 0 of CSR to enable the timer
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#define CLKINT (1 << 2) // bit 2 of CSR to specify CPU clock
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#define SYS_INTEN (1 << 1) // enable systick interrupt
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