64 lines
1.3 KiB
C
64 lines
1.3 KiB
C
|
#pragma once
|
||
|
|
|
||
|
|
struct TimerControl {
|
||
|
|
union {
|
||
|
|
struct {
|
||
|
|
uint32_t MDT0 : 1;
|
||
|
|
uint32_t UDT0 : 1;
|
||
|
|
uint32_t GENT0 : 1;
|
||
|
|
uint32_t CAPT0 : 1;
|
||
|
|
uint32_t ARHT0 : 1;
|
||
|
|
uint32_t LOAD0 : 1;
|
||
|
|
uint32_t ENIT0 : 1;
|
||
|
|
uint32_t ENT0 : 1;
|
||
|
|
uint32_t T0INT : 1;
|
||
|
|
uint32_t PWMA0 : 1;
|
||
|
|
uint32_t ENALL : 1;
|
||
|
|
uint32_t CASC : 1;
|
||
|
|
|
||
|
|
uint32_t reserved : 20;
|
||
|
|
};
|
||
|
|
uint32_t raw;
|
||
|
|
};
|
||
|
|
};
|
||
|
|
|
||
|
|
struct Timer {
|
||
|
|
volatile TimerControl TCSR0;
|
||
|
|
volatile uint32_t TLR0;
|
||
|
|
volatile uint32_t TCR0;
|
||
|
|
|
||
|
|
uint32_t _reserved;
|
||
|
|
|
||
|
|
volatile TimerControl TCSR1;
|
||
|
|
volatile uint32_t TLR1;
|
||
|
|
volatile uint32_t TCR1;
|
||
|
|
|
||
|
|
void EnableT1() {
|
||
|
|
TCSR1.ARHT0 = 1;
|
||
|
|
TCSR1.ENT0 = 1;
|
||
|
|
}
|
||
|
|
|
||
|
|
uint32_t GetT1Ticks() {
|
||
|
|
return TCR1;
|
||
|
|
}
|
||
|
|
|
||
|
|
void SetupAsWdt(uint32_t timeout_ticks) {
|
||
|
|
TLR0 = timeout_ticks;
|
||
|
|
TCSR0.LOAD0 = 1; // reset counter
|
||
|
|
TCSR0.UDT0 = 1; // count backwards from the load value
|
||
|
|
TCSR0.ENIT0 = 1; // enable interrupt
|
||
|
|
|
||
|
|
TCSR0.LOAD0 = 0; // allow counter to run
|
||
|
|
TCSR0.ENT0 = 1; // enable timer
|
||
|
|
}
|
||
|
|
|
||
|
|
void Pet() {
|
||
|
|
TCSR0.ENT0 = 0;
|
||
|
|
TCSR0.LOAD0 = 1;
|
||
|
|
TCSR0.LOAD0 = 0;
|
||
|
|
TCSR0.ENT0 = 1;
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
#define timer0 ((Timer*) 0x40002000)
|