mirror of https://github.com/rusefi/wideband.git
85 lines
3.2 KiB
C
85 lines
3.2 KiB
C
/****************************************************************************************
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* Include files
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****************************************************************************************/
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#include "boot.h" /* bootloader generic header */
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#include "led.h" /* module header */
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#include "stm32f1xx.h" /* STM32 registers and drivers */
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#include "stm32f1xx_ll_gpio.h" /* STM32 LL GPIO header */
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#include "io_pins.h"
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/****************************************************************************************
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* Local data declarations
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****************************************************************************************/
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/** \brief Holds the desired LED blink interval time. */
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static blt_int16u ledBlinkIntervalMs;
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/************************************************************************************//**
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** \brief Initializes the LED blink driver.
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** \param interval_ms Specifies the desired LED blink interval time in milliseconds.
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** \return none.
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**
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****************************************************************************************/
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void LedBlinkInit(blt_int16u interval_ms)
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{
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LL_GPIO_InitTypeDef GPIO_InitStruct;
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/* Configure GPIO pin for the LED. */
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GPIO_InitStruct.Pin = LL_LED_BLUE_PIN;
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GPIO_InitStruct.Mode = LL_GPIO_MODE_OUTPUT;
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GPIO_InitStruct.Speed = LL_GPIO_SPEED_FREQ_LOW;
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GPIO_InitStruct.OutputType = LL_GPIO_OUTPUT_PUSHPULL;
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LL_GPIO_Init(LED_BLUE_PORT, &GPIO_InitStruct);
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LL_GPIO_ResetOutputPin(LED_BLUE_PORT, LL_LED_BLUE_PIN);
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/* store the interval time between LED toggles */
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ledBlinkIntervalMs = interval_ms;
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} /*** end of LedBlinkInit ***/
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/************************************************************************************//**
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** \brief Task function for blinking the LED as a fixed timer interval.
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** \return none.
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**
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****************************************************************************************/
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void LedBlinkTask(void)
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{
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static blt_bool ledOn = BLT_FALSE;
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static blt_int32u nextBlinkEvent = 0;
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/* check for blink event */
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if (TimerGet() >= nextBlinkEvent)
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{
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/* toggle the LED state */
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if (ledOn == BLT_FALSE)
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{
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ledOn = BLT_TRUE;
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LL_GPIO_SetOutputPin(LED_BLUE_PORT,LL_LED_BLUE_PIN);
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}
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else
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{
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ledOn = BLT_FALSE;
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LL_GPIO_ResetOutputPin(LED_BLUE_PORT, LL_LED_BLUE_PIN);
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}
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/* schedule the next blink event */
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nextBlinkEvent = TimerGet() + ledBlinkIntervalMs;
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}
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} /*** end of LedBlinkTask ***/
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/************************************************************************************//**
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** \brief Cleans up the LED blink driver. This is intended to be used upon program
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** exit.
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** \return none.
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**
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****************************************************************************************/
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void LedBlinkExit(void)
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{
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/* turn the LED off */
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LL_GPIO_ResetOutputPin(LED_BLUE_PORT, LL_LED_BLUE_PIN);
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} /*** end of LedBlinkExit ***/
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/*********************************** end of led.c **************************************/
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