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Initial K20 fixes 

Added the required gpio-irq enable/disable + fixed bus_frequency
pull/264/head
Sissors 2014-04-16 08:12:31 +02:00
parent fc0a2cf35e
commit 19d131973c
2 changed files with 41 additions and 1 deletions
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2
libraries/mbed/targets/hal/TARGET_Freescale/TARGET_K20D5M/clk_freqs.h
View File

@ -25,7 +25,7 @@ extern "C" {
* \return Bus frequency
*/
static inline uint32_t bus_frequency(void) {
return SystemCoreClock / (((SIM->CLKDIV1 & SIM_CLKDIV1_OUTDIV4_MASK) >> SIM_CLKDIV1_OUTDIV4_SHIFT) + 1);
return SystemCoreClock / (((SIM->CLKDIV1 & SIM_CLKDIV1_OUTDIV2_MASK) >> SIM_CLKDIV1_OUTDIV2_SHIFT) + 1);
}
/*!

40
libraries/mbed/targets/hal/TARGET_Freescale/TARGET_K20D5M/gpio_irq_api.c
View File

@ -165,3 +165,43 @@ void gpio_irq_set(gpio_irq_t *obj, gpio_irq_event event, uint32_t enable) {
// Interrupt configuration and clear interrupt
port->PCR[obj->pin] = (port->PCR[obj->pin] & ~PORT_PCR_IRQC_MASK) | irq_settings | PORT_PCR_ISF_MASK;
}
void gpio_irq_enable(gpio_irq_t *obj) {
switch (obj->port) {
case PortA:
NVIC_EnableIRQ(PORTA_IRQn);
break;
case PortB:
NVIC_EnableIRQ(PORTB_IRQn);
break;
case PortC:
NVIC_EnableIRQ(PORTC_IRQn);
break;
case PortD:
NVIC_EnableIRQ(PORTD_IRQn);
break;
case PortE:
NVIC_EnableIRQ(PORTE_IRQn);
break;
}
}
void gpio_irq_disable(gpio_irq_t *obj) {
switch (obj->port) {
case PortA:
NVIC_DisableIRQ(PORTA_IRQn);
break;
case PortB:
NVIC_DisableIRQ(PORTB_IRQn);
break;
case PortC:
NVIC_DisableIRQ(PORTC_IRQn);
break;
case PortD:
NVIC_DisableIRQ(PORTD_IRQn);
break;
case PortE:
NVIC_DisableIRQ(PORTE_IRQn);
break;
}
}