1
0
mirror of https://github.com/jscrane/r65emu.git synced 2024-07-18 15:28:54 +00:00
r65emu/timed.cpp

44 lines
1.1 KiB
C++
Raw Normal View History

2018-08-17 14:22:49 +00:00
#include <Arduino.h>
2018-08-10 12:36:41 +00:00
2018-08-17 14:22:49 +00:00
#if defined(__LM4F120H5QR__)
2014-11-13 19:20:01 +00:00
#include <inc/hw_ints.h>
#include <driverlib/interrupt.h>
#include <driverlib/sysctl.h>
#include <driverlib/timer.h>
2018-08-17 14:22:49 +00:00
#endif
2014-11-13 19:20:01 +00:00
#include "timed.h"
static Timed *t;
// FIXME: disable timer when tick() returns false
2018-08-17 14:22:49 +00:00
#if defined(__LM4F120H5QR__)
2014-11-13 19:20:01 +00:00
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);
}
2018-08-17 14:22:49 +00:00
#elif defined(ESP_PLATFORM)
void IRAM_ATTR onTimer() {
t->tick();
}
void timer_create(unsigned freq, Timed *client) {
hw_timer_t *timer = timerBegin(3, 80, true); // prescaler of 80
timerAttachInterrupt(timer, &onTimer, true);
timerAlarmWrite(timer, 1000000 / freq, true);
timerAlarmEnable(timer);
}
2018-08-10 12:36:41 +00:00
#endif