tinygo-org/tinygo
1
0
Fork 0
mirror of https://github.com/tinygo-org/tinygo.git synced 2026-08-08 21:13:39 +00:00
Code Issues Packages Projects Releases 6 Wiki Activity

stm32: Use TIM for runtime clock

Browse Source
This commit is contained in:
Kenneth Bell
2021-05-15 10:38:40 -07:00
committed by Ron Evans
parent 003c96edc0
commit fa3dd41a4f
9 changed files with 122 additions and 307 deletions
Download Patch File Download Diff File Expand all files Collapse all files
src/runtime/runtime_stm32f103.go
+1 -26
View File
@@ -7,39 +7,14 @@ import (
"machine"
)
/*
timer settings used for tick and sleep.
note: TICK_TIMER_FREQ and SLEEP_TIMER_FREQ are controlled by PLL / clock
settings configured in initCLK, so must be kept in sync if the clock settings
are changed.
*/
const (
TICK_RATE = 1000 // 1 KHz
SLEEP_TIMER_IRQ = stm32.IRQ_TIM3
SLEEP_TIMER_FREQ = 72000000 // 72 MHz
TICK_TIMER_IRQ = stm32.IRQ_TIM4
TICK_TIMER_FREQ = 72000000 // 72 MHz
)
type arrtype = uint32
func init() {
initCLK()
initSleepTimer(&timerInfo{
EnableRegister: &stm32.RCC.APB1ENR,
EnableFlag: stm32.RCC_APB1ENR_TIM3EN,
Device: stm32.TIM3,
})
machine.Serial.Configure(machine.UARTConfig{})
initTickTimer(&timerInfo{
EnableRegister: &stm32.RCC.APB1ENR,
EnableFlag: stm32.RCC_APB1ENR_TIM4EN,
Device: stm32.TIM4,
})
initTickTimer(&machine.TIM4)
}
func putchar(c byte) {