tinygo/src/runtime/runtime_rp2040.go
Ayke van Laethem 77ec9b6369 all: update build constraints to Go 1.17
Do it all at once in preparation for Go 1.18 support.

To make this commit, I've simply modified the `fmt-check` Makefile
target to rewrite files instead of listing the differences. So this is a
fully mechanical change, it should not have introduced any errors.
2022-02-04 07:49:46 +01:00

62 строки
915 Б
Go

//go:build rp2040
// +build rp2040
package runtime
import (
"device/arm"
"machine"
)
// machineTicks is provided by package machine.
func machineTicks() uint64
type timeUnit uint64
// ticks returns the number of ticks (microseconds) elapsed since power up.
func ticks() timeUnit {
t := machineTicks()
return timeUnit(t)
}
func ticksToNanoseconds(ticks timeUnit) int64 {
return int64(ticks) * 1000
}
func nanosecondsToTicks(ns int64) timeUnit {
return timeUnit(ns / 1000)
}
func sleepTicks(d timeUnit) {
if d == 0 {
return
}
sleepUntil := ticks() + d
for ticks() < sleepUntil {
}
}
func waitForEvents() {
arm.Asm("wfe")
}
func putchar(c byte) {
machine.Serial.WriteByte(c)
}
// machineInit is provided by package machine.
func machineInit()
func init() {
machineInit()
machine.Serial.Configure(machine.UARTConfig{})
}
//export Reset_Handler
func main() {
preinit()
run()
exit(0)
}