mirror of
https://github.com/jscrane/r65emu.git
synced 2024-12-27 05:32:04 +00:00
28 lines
760 B
C++
28 lines
760 B
C++
|
#include <Energia.h>
|
||
|
|
#include <stdint.h>
|
||
|
|
#include <inc/hw_ints.h>
|
||
|
|
#include <driverlib/interrupt.h>
|
||
|
|
#include <driverlib/sysctl.h>
|
||
|
|
#include <driverlib/timer.h>
|
||
|
|
|
||
|
|
#include "timed.h"
|
||
|
|
|
||
|
|
static Timed *t;
|
||
|
|
|
||
|
|
// FIXME: disable timer when tick() returns false
|
||
|
|
static void timer0isr(void) {
|
||
|
|
ROM_TimerIntClear(TIMER0_BASE, TIMER_TIMA_TIMEOUT);
|
||
|
|
t->tick();
|
||
|
|
}
|
||
|
|
|
||
|
|
void timer_create(unsigned freq, Timed *client) {
|
||
|
|
t = client;
|
||
|
|
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_TIMER0);
|
||
|
|
ROM_TimerConfigure(TIMER0_BASE, TIMER_CFG_PERIODIC);
|
||
|
|
TimerIntRegister(TIMER0_BASE, TIMER_A, timer0isr);
|
||
|
|
ROM_TimerEnable(TIMER0_BASE, TIMER_A);
|
||
|
|
ROM_IntEnable(INT_TIMER0A);
|
||
|
|
ROM_TimerIntEnable(TIMER0_BASE, TIMER_TIMA_TIMEOUT);
|
||
|
|
ROM_TimerLoadSet(TIMER0_BASE, TIMER_A, ROM_SysCtlClockGet() / freq);
|
||
|
|
}
|