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refine peripherals processing. Use libs

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This commit is contained in:
e.gavrin
2014-07-30 21:57:41 +04:00
parent e540590ddd
commit c25db6d7b9
7 changed files with 97 additions and 69 deletions
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src/libperipherals/common-io.c
+65 -33
View File
@@ -13,19 +13,18 @@
* limitations under the License.
*/
#include "common-io.h"
#include "jerry-libc.h"
#ifdef __TARGET_MCU
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wpedantic"
#pragma GCC diagnostic ignored "-Wsign-conversion"
#include "stm32f4xx_conf.h"
#include "stm32f4xx.h"
#include "stm32f4xx_gpio.h"
#include "stm32f4xx_rcc.h"
#pragma GCC diagnostic pop
#ifdef __HOST
#include <time.h>
#endif
// STM32 F4
#define LED_GREEN 12
#define LED_ORANGE 13
@@ -34,9 +33,6 @@
#endif
#include "common-io.h"
#include "jerry-libc.h"
int
digital_read (uint32_t arg1 __unused, uint32_t arg2 __unused)
{
@@ -76,40 +72,36 @@ wait_ms (uint32_t time_ms)
#endif
#ifdef __TARGET_MCU
volatile uint32_t index;
for (index = 0; index < time_ms; index++);
while (time_ms--)
{
wait_1ms ();
}
#endif
}
#ifdef __TARGET_MCU
void initialize_timer()
{
RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
TIM_TimeBaseInitTypeDef timerInitStructure;
timerInitStructure.TIM_Prescaler = 40000;
timerInitStructure.TIM_CounterMode = TIM_CounterMode_Up;
timerInitStructure.TIM_Period = 500;
timerInitStructure.TIM_ClockDivision = TIM_CKD_DIV1;
timerInitStructure.TIM_RepetitionCounter = 0;
TIM_TimeBaseInit(TIM2, &timerInitStructure);
TIM_Cmd(TIM2, ENABLE);
}
void
fake_exit (void)
{
uint32_t pin = LED_ORANGE;
uint32_t mode = (uint32_t)GPIO_Mode_OUT << (pin * 2);
uint32_t speed = (uint32_t)GPIO_Speed_100MHz << (pin * 2);
uint32_t type = (uint32_t)GPIO_OType_PP << pin;
uint32_t pullup = (uint32_t)GPIO_PuPd_NOPULL << (pin * 2);
//
// Initialise the peripheral clock.
//
RCC->AHB1ENR |= RCC_AHB1Periph_GPIOD;
//
// Initilaise the GPIO port.
//
volatile GPIO_TypeDef* gpio = GPIOD;
gpio->MODER |= mode;
gpio->OSPEEDR |= speed;
gpio->OTYPER |= type;
gpio->PUPDR |= pullup;
//
// Toggle the selected LED indefinitely.
//
volatile int index;
// SOS
int dot = 600000;
int dash = dot * 3;
@@ -130,4 +122,44 @@ fake_exit (void)
for (index = 0; index < dash * 7; index++);
}
}
static __IO uint32_t sys_tick_counter;
void
initialize_sys_tick (void)
{
/****************************************
*SystemFrequency/1000 1ms *
*SystemFrequency/100000 10us *
*SystemFrequency/1000000 1us *
*****************************************/
while (SysTick_Config (SystemCoreClock / 1000000) != 0)
{
} // One SysTick interrupt now equals 1us
}
void SysTick_Handler(void) {
time_tick_decrement();
}
void
time_tick_decrement (void)
{
if (sys_tick_counter != 0x00)
{
sys_tick_counter--;
}
}
void
wait_1ms (void)
{
sys_tick_counter = 1000;
while (sys_tick_counter != 0)
{
}
}
#endif