Imagelibrary/rt-thread
1
0
Fork 0
mirror of https://github.com/RT-Thread/rt-thread.git synced 2025-12-26 17:18:24 +00:00
Code Issues Packages Projects Releases Wiki Activity

*** EFM32 branch ***

Browse Source 
1. Add IIC slave mode RX by interrupt function (Now, master mode TX/RX and slave mode RX functions are done)
2. Add Timer1 configuration in timer driver
3. Modify the ACMP default initialization setting 
4. Add on/off switch for debug code to reduce size

git-svn-id: https://rt-thread.googlecode.com/svn/trunk@1353 bbd45198-f89e-11dd-88c7-29a3b14d5316
This commit is contained in:
onelife.real
2011-03-29 09:41:22 +00:00
parent 2e59147522
commit 578b245b0e
14 changed files with 486 additions and 73 deletions
Download Patch File Download Diff File Expand all files Collapse all files

67
bsp/efm32/drv_timer.c
View File

@@ -30,6 +30,9 @@
(p * (EFM32_HFXO_FREQUENCY / (1 << TMR_CFG_PRESCALER) / 1000))
/* Private variables ------------------------------------------------------------*/
#ifdef RT_USING_TIMER1
static struct rt_device timer1_device;
#endif
#ifdef RT_USING_TIMER2
static struct rt_device timer2_device;
#endif
@@ -113,15 +116,20 @@ static rt_err_t rt_hs_timer_control (
{
/* change device setting */
struct efm32_timer_control_t *control;
rt_uint32_t running;
control = (struct efm32_timer_control_t *)args;
running = timer->timer_device->STATUS & 0x00000001;
TIMER_Enable(timer->timer_device, false);
timer->timer_device->CNT = _TIMER_CNT_RESETVALUE;
TIMER_TopSet(timer->timer_device, TIMER_TopCalculate(control->period));
timer->hook.cbFunc = control->hook.cbFunc;
timer->hook.userPtr = control->hook.userPtr;
TIMER_Enable(timer->timer_device, true);
if (running)
{
TIMER_Enable(timer->timer_device, true);
}
}
break;
}
@@ -224,16 +232,67 @@ void rt_hw_timer_init(void)
init.oneShot = false;
init.sync = false;
#ifdef RT_USING_TIMER1
timer = rt_malloc(sizeof(struct efm32_timer_device_t));
if (timer == RT_NULL)
{
#ifdef RT_TIMER_DEBUG
rt_kprintf("no memory for TIMER1 driver\n");
#endif
return;
}
timer->timer_device = TIMER1;
#if (RT_USING_TIMER1 == RT_TIMER_ONCE)
init.oneShot = true;
#elif (RT_USING_TIMER1 == RT_TIMER_CONTINUE)
init.oneShot = false;
#endif
/* Enable clock for TIMERn module */
CMU_ClockEnable(cmuClock_TIMER1, true);
/* Reset */
TIMER_Reset(TIMER1);
/* Configure TIMER */
TIMER_Init(TIMER1, &init);
hook.type = efm32_irq_type_timer;
hook.unit = 1;
hook.cbFunc = rt_hw_timer_isr;
hook.userPtr = &timer1_device;
efm32_irq_hook_register(&hook);
/* Enable overflow interrupt */
TIMER_IntEnable(TIMER1, TIMER_IF_OF);
TIMER_IntClear(TIMER1, TIMER_IF_OF);
/* Enable TIMERn interrupt vector in NVIC */
NVIC_ClearPendingIRQ(TIMER1_IRQn);
NVIC_SetPriority(TIMER1_IRQn, EFM32_IRQ_PRI_DEFAULT);
NVIC_EnableIRQ(TIMER1_IRQn);
rt_hw_timer_register(&timer1_device, RT_TIMER1_NAME, 0, timer);
#endif
#ifdef RT_USING_TIMER2
timer = rt_malloc(sizeof(struct efm32_timer_device_t));
if (timer == RT_NULL)
{
rt_kprintf("no memory for TIMER driver\n");
#ifdef RT_TIMER_DEBUG
rt_kprintf("no memory for TIMER2 driver\n");
#endif
return;
}
timer->timer_device = TIMER2;
#if (RT_USING_TIMER2 == RT_TIMER_ONCE)
init.oneShot = true;
#elif (RT_USING_TIMER2 == RT_TIMER_CONTINUE)
init.oneShot = false;
#endif
/* Enable clock for TIMERn module */
CMU_ClockEnable(cmuClock_TIMER2, true);