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arm: async uart writes & fixes

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This commit is contained in:
Paul Mathieu
2022-05-17 10:17:56 -07:00
parent e9f623e754
commit e39cdc5709
13 changed files with 232 additions and 190 deletions
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24
arm/timer.h
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@@ -3,18 +3,18 @@
struct TimerControl {
union {
struct {
uint32_t MDT0 : 1;
uint32_t UDT0 : 1;
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 ENT0 : 1;
uint32_t T0INT : 1;
uint32_t PWMA0 : 1;
uint32_t ENALL : 1;
uint32_t CASC : 1;
uint32_t CASC : 1;
uint32_t reserved : 20;
};
@@ -38,18 +38,16 @@ struct Timer {
TCSR1.ENT0 = 1;
}
uint32_t GetT1Ticks() {
return TCR1;
}
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 = 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
TCSR0.LOAD0 = 0; // allow counter to run
TCSR0.ENT0 = 1; // enable timer
}
void Pet() {
@@ -60,4 +58,4 @@ struct Timer {
}
};
#define timer0 ((Timer*) 0x40002000)
#define timer0 ((Timer*)0x40002000)