Example #1
0
func main() {
	setup.Performance(0)

	periph.AHBClockEnable(periph.GPIOB)
	periph.AHBReset(periph.GPIOB)

	LED.SetMode(Blue, gpio.Out)
	LED.SetMode(Green, gpio.Out)

	vt := exce.NewTable(16)
	vt[exce.NMI] = exce.VectorFor(defaultHandler)
	vt[exce.HardFault] = exce.VectorFor(defaultHandler)
	vt[exce.SysTick] = exce.VectorFor(sysTickHandler)
	exce.UseTable(vt[:])

	_, _, tenms := systick.Calib()
	tenms *= 10 // stm32l1 returns value for 1 ms not for 10ms.
	systick.SetReload(tenms * 100)
	systick.SetFlags(systick.Enable | systick.TickInt)

	// Sleep forever.
	sleep.EnableSleepOnExit()
	barrier.Sync() // not necessary on Cortex-M0,M3,M4
	sleep.WFI()

	// Execution should never reach there so the green LED
	// should never light up.
	LED.SetBit(Green)
}
Example #2
0
func init() {
	setup.Performance(0)

	periph.AHBClockEnable(periph.GPIOB)
	periph.AHBReset(periph.GPIOB)

	LED.SetMode(Blue, gpio.Out)
	LED.SetMode(Green, gpio.Out)
}
Example #3
0
func init() {
	setup.Performance(0)

	periph.AHBClockEnable(periph.GPIOA | periph.GPIOB)
	periph.AHBReset(periph.GPIOA | periph.GPIOB)

	LED.SetMode(Green, gpio.Out)
	LED.SetMode(Blue, gpio.Out)

	// Setup external interrupt source: user button.
	gpio.A.SetMode(0, gpio.In)
	exti.L0.Connect(gpio.A)
	exti.L0.RiseTrigEnable()
	exti.L0.IntEnable()
	irq.Ext0.UseHandler(buttonHandler)
	irq.Ext0.Enable()
}