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#include "stm32l4xx_hal.h"
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#include "delayus.h"
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static TIM_HandleTypeDef timer_handle;
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// incluye algo que falta y es indispensable
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void delayus (uint32_t microseconds)
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{
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    uint32_t overflows;
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        while(comprobar flag) {};
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        borrar flag
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    uint32_t cnt_initial;
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    overflows = microseconds/65536 + 1;
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}
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    partial = microseconds % 65536;
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    cnt_initial = 65536 - partial;
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   __HAL_TIM_CLEAR_FLAG(&timer_handle, TIM_FLAG_UPDATE);
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__HAL_TIM_SET_COUNTER(&timer_handle,??????);
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    counter_flags = 0;
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    while (counter_flags < overflows)
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    {
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        while(comprobar flag == 0) {};  // __HAL_TIM_GET_FLAG(
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        // ????borrar flag
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        counter_flags++;
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    }
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    HAL_TIM_Base_Stop(
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}
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void delay_init(void)
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{
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	// poner en macha el RCC del relpoj
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	timer_handle.Instance = TIM6;
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	timer_handle.Init.Prescaler = ...
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	HAL_TIM_Base_Init(
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}
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