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|
/*
* Copyright (c) 2006-2023, RT-Thread Development Team
*
* SPDX-License-Identifier: Apache-2.0
*
* Change Logs:
* Date Author Notes
* 2018-12-10 zylx first version
* 2020-06-16 thread-liu Porting for stm32mp1
* 2020-08-25 linyongkang Fix the timer clock frequency doubling problem
* 2020-10-14 PeakRacing Porting for stm32wbxx
* 2020-11-18 leizhixiong add STM32H7 series support
* 2023-08-21 Donocean fix the MCU crash when using timer6
* 2023-12-24 Meco Man add TIMx existing check
*/
#include <rtdevice.h>
#include "drv_config.h"
#include <drivers/clock_time.h>
//#define DRV_DEBUG
#define LOG_TAG "drv.tim"
#include <drv_log.h>
#if defined(BSP_USING_TIM1) && !defined(TIM1)
#error "timer1 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM1"
#endif
#if defined(BSP_USING_TIM2) && !defined(TIM2)
#error "timer2 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM2"
#endif
#if defined(BSP_USING_TIM3) && !defined(TIM3)
#error "timer3 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM3"
#endif
#if defined(BSP_USING_TIM4) && !defined(TIM4)
#error "timer4 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM4"
#endif
#if defined(BSP_USING_TIM5) && !defined(TIM5)
#error "timer5 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM5"
#endif
#if defined(BSP_USING_TIM6) && !defined(TIM6)
#error "timer6 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM6"
#endif
#if defined(BSP_USING_TIM7) && !defined(TIM7)
#error "timer7 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM7"
#endif
#if defined(BSP_USING_TIM8) && !defined(TIM8)
#error "timer8 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM8"
#endif
#if defined(BSP_USING_TIM9) && !defined(TIM9)
#error "timer9 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM9"
#endif
#if defined(BSP_USING_TIM10) && !defined(TIM10)
#error "timer10 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM10"
#endif
#if defined(BSP_USING_TIM11) && !defined(TIM11)
#error "timer11 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM11"
#endif
#if defined(BSP_USING_TIM12) && !defined(TIM12)
#error "timer12 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM12"
#endif
#if defined(BSP_USING_TIM13) && !defined(TIM13)
#error "timer13 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM13"
#endif
#if defined(BSP_USING_TIM14) && !defined(TIM14)
#error "timer14 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM14"
#endif
#if defined(BSP_USING_TIM15) && !defined(TIM15)
#error "timer15 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM15"
#endif
#if defined(BSP_USING_TIM16) && !defined(TIM16)
#error "timer16 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM16"
#endif
#if defined(BSP_USING_TIM17) && !defined(TIM17)
#error "timer17 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM17"
#endif
#if defined(BSP_USING_TIM18) && !defined(TIM18)
#error "timer18 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM18"
#endif
#if defined(BSP_USING_TIM19) && !defined(TIM19)
#error "timer19 doesn't exist in this STM32 series, but you enabled the BSP_USING_TIM19"
#endif
/* APBx timer clocks frequency doubler state related to APB1CLKDivider value */
void stm32_tim_pclkx_doubler_get(rt_uint32_t *pclk1_doubler, rt_uint32_t *pclk2_doubler)
{
#if !defined(SOC_SERIES_STM32N6)
rt_uint32_t flatency = 0;
#endif
RCC_ClkInitTypeDef RCC_ClkInitStruct = { 0 };
RT_ASSERT(pclk1_doubler != RT_NULL);
RT_ASSERT(pclk1_doubler != RT_NULL);
#if defined(SOC_SERIES_STM32N6)
HAL_RCC_GetClockConfig(&RCC_ClkInitStruct);
#else
HAL_RCC_GetClockConfig(&RCC_ClkInitStruct, &flatency);
#endif
*pclk1_doubler = 1;
*pclk2_doubler = 1;
#if defined(SOC_SERIES_STM32MP1)
if (RCC_ClkInitStruct.APB1_Div != RCC_APB1_DIV1)
{
*pclk1_doubler = 2;
}
if (RCC_ClkInitStruct.APB2_Div != RCC_APB2_DIV1)
{
*pclk2_doubler = 2;
}
#else
if (RCC_ClkInitStruct.APB1CLKDivider != RCC_HCLK_DIV1)
{
*pclk1_doubler = 2;
}
#if !(defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32G0))
if (RCC_ClkInitStruct.APB2CLKDivider != RCC_HCLK_DIV1)
{
*pclk2_doubler = 2;
}
#endif /* !(defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32G0)) */
#endif /* defined(SOC_SERIES_STM32MP1) */
}
#if defined(RT_USING_CLOCK_TIMER_TRIGGER)
/**
* @brief Get the effective input clock frequency of one STM32 timer.
* @param tim Pointer to the STM32 HAL timer handle.
* @param timer_clk Pointer to the output timer clock frequency in hertz.
* @return Operation status.
*/
static rt_err_t stm32_tim_clock_get(TIM_HandleTypeDef *tim, rt_uint32_t *timer_clk)
{
rt_uint32_t pclk1_doubler;
rt_uint32_t pclk2_doubler;
stm32_tim_pclkx_doubler_get(&pclk1_doubler, &pclk2_doubler);
#if defined(APBPERIPH_BASE)
*timer_clk = HAL_RCC_GetPCLK1Freq() * pclk1_doubler;
#elif defined(APB1PERIPH_BASE) || defined(APB2PERIPH_BASE)
if ((rt_uint32_t)tim->Instance >= APB2PERIPH_BASE)
{
*timer_clk = HAL_RCC_GetPCLK2Freq() * pclk2_doubler;
}
else
{
*timer_clk = HAL_RCC_GetPCLK1Freq() * pclk1_doubler;
}
#else
#error "This driver has not supported this series yet!"
#endif /* defined(APBPERIPH_BASE) */
if (*timer_clk == 0U)
{
return -RT_ERROR;
}
return RT_EOK;
}
#endif /* defined(RT_USING_CLOCK_TIMER_TRIGGER) */
void stm32_tim_enable_clock(TIM_HandleTypeDef *htim_base)
{
RT_ASSERT(htim_base != RT_NULL);
if (RT_FALSE)
;
#ifdef TIM1
else if (htim_base->Instance == TIM1)
{
__HAL_RCC_TIM1_CLK_ENABLE();
}
#endif /* TIM1 */
#ifdef TIM2
else if (htim_base->Instance == TIM2)
{
__HAL_RCC_TIM2_CLK_ENABLE();
}
#endif /* TIM2 */
#ifdef TIM3
else if (htim_base->Instance == TIM3)
{
__HAL_RCC_TIM3_CLK_ENABLE();
}
#endif /* TIM3 */
#ifdef TIM4
else if (htim_base->Instance == TIM4)
{
__HAL_RCC_TIM4_CLK_ENABLE();
}
#endif /* TIM4 */
#ifdef TIM5
else if (htim_base->Instance == TIM5)
{
__HAL_RCC_TIM5_CLK_ENABLE();
}
#endif /* TIM5 */
#ifdef TIM6
else if (htim_base->Instance == TIM6)
{
__HAL_RCC_TIM6_CLK_ENABLE();
}
#endif /* TIM6 */
#ifdef TIM7
else if (htim_base->Instance == TIM7)
{
__HAL_RCC_TIM7_CLK_ENABLE();
}
#endif /* TIM7 */
#ifdef TIM8
else if (htim_base->Instance == TIM8)
{
__HAL_RCC_TIM8_CLK_ENABLE();
}
#endif /* TIM8 */
#ifdef TIM9
else if (htim_base->Instance == TIM9)
{
__HAL_RCC_TIM9_CLK_ENABLE();
}
#endif /* TIM9 */
#ifdef TIM10
else if (htim_base->Instance == TIM10)
{
__HAL_RCC_TIM10_CLK_ENABLE();
}
#endif /* TIM10 */
#ifdef TIM11
else if (htim_base->Instance == TIM11)
{
__HAL_RCC_TIM11_CLK_ENABLE();
}
#endif /* TIM11 */
#ifdef TIM12
else if (htim_base->Instance == TIM12)
{
__HAL_RCC_TIM12_CLK_ENABLE();
}
#endif /* TIM12 */
#ifdef TIM13
else if (htim_base->Instance == TIM13)
{
__HAL_RCC_TIM13_CLK_ENABLE();
}
#endif /* TIM13 */
#ifdef TIM14
else if (htim_base->Instance == TIM14)
{
__HAL_RCC_TIM14_CLK_ENABLE();
}
#endif /* TIM14 */
#ifdef TIM15
else if (htim_base->Instance == TIM15)
{
__HAL_RCC_TIM15_CLK_ENABLE();
}
#endif /* TIM15 */
#ifdef TIM16
else if (htim_base->Instance == TIM16)
{
__HAL_RCC_TIM16_CLK_ENABLE();
}
#endif /* TIM16 */
#ifdef TIM17
else if (htim_base->Instance == TIM17)
{
__HAL_RCC_TIM17_CLK_ENABLE();
}
#endif /* TIM17 */
#ifdef TIM18
else if (htim_base->Instance == TIM18)
{
__HAL_RCC_TIM18_CLK_ENABLE();
}
#endif /* TIM18 */
#ifdef TIM19
else if (htim_base->Instance == TIM19)
{
__HAL_RCC_TIM19_CLK_ENABLE();
}
#endif /* TIM19 */
else
{
RT_ASSERT(RT_TRUE);
}
}
#ifdef BSP_USING_TIM
enum
{
#ifdef BSP_USING_TIM1
TIM1_INDEX,
#endif
#ifdef BSP_USING_TIM2
TIM2_INDEX,
#endif
#ifdef BSP_USING_TIM3
TIM3_INDEX,
#endif
#ifdef BSP_USING_TIM4
TIM4_INDEX,
#endif
#ifdef BSP_USING_TIM5
TIM5_INDEX,
#endif
#ifdef BSP_USING_TIM6
TIM6_INDEX,
#endif
#ifdef BSP_USING_TIM7
TIM7_INDEX,
#endif
#ifdef BSP_USING_TIM8
TIM8_INDEX,
#endif
#ifdef BSP_USING_TIM9
TIM9_INDEX,
#endif
#ifdef BSP_USING_TIM10
TIM10_INDEX,
#endif
#ifdef BSP_USING_TIM11
TIM11_INDEX,
#endif
#ifdef BSP_USING_TIM12
TIM12_INDEX,
#endif
#ifdef BSP_USING_TIM13
TIM13_INDEX,
#endif
#ifdef BSP_USING_TIM14
TIM14_INDEX,
#endif
#ifdef BSP_USING_TIM15
TIM15_INDEX,
#endif
#ifdef BSP_USING_TIM16
TIM16_INDEX,
#endif
#ifdef BSP_USING_TIM17
TIM17_INDEX,
#endif
};
struct stm32_clock_timer
{
rt_clock_timer_t time_device;
TIM_HandleTypeDef tim_handle;
IRQn_Type tim_irqn;
char *name;
#if defined(RT_USING_CLOCK_TIMER_TRIGGER)
enum rt_clock_timer_trigger_event trigger_event; /**< Cached trigger output event. */
rt_uint16_t trigger_channel; /**< Cached compare channel, or 0 for update event. */
#endif /* defined(RT_USING_CLOCK_TIMER_TRIGGER) */
};
static struct stm32_clock_timer stm32_clock_timer_obj[] = {
#ifdef BSP_USING_TIM1
TIM1_CONFIG,
#endif
#ifdef BSP_USING_TIM2
TIM2_CONFIG,
#endif
#ifdef BSP_USING_TIM3
TIM3_CONFIG,
#endif
#ifdef BSP_USING_TIM4
TIM4_CONFIG,
#endif
#ifdef BSP_USING_TIM5
TIM5_CONFIG,
#endif
#ifdef BSP_USING_TIM6
TIM6_CONFIG,
#endif
#ifdef BSP_USING_TIM7
TIM7_CONFIG,
#endif
#ifdef BSP_USING_TIM8
TIM8_CONFIG,
#endif
#ifdef BSP_USING_TIM9
TIM9_CONFIG,
#endif
#ifdef BSP_USING_TIM10
TIM10_CONFIG,
#endif
#ifdef BSP_USING_TIM11
TIM11_CONFIG,
#endif
#ifdef BSP_USING_TIM12
TIM12_CONFIG,
#endif
#ifdef BSP_USING_TIM13
TIM13_CONFIG,
#endif
#ifdef BSP_USING_TIM14
TIM14_CONFIG,
#endif
#ifdef BSP_USING_TIM15
TIM15_CONFIG,
#endif
#ifdef BSP_USING_TIM16
TIM16_CONFIG,
#endif
#ifdef BSP_USING_TIM17
TIM17_CONFIG,
#endif
};
static void timer_init(struct rt_clock_timer_device *timer, rt_uint32_t state)
{
uint32_t prescaler_value = 0;
uint32_t pclk1_doubler, pclk2_doubler;
TIM_HandleTypeDef *tim = RT_NULL;
struct stm32_clock_timer *tim_device = RT_NULL;
RT_ASSERT(timer != RT_NULL);
if (state)
{
tim = (TIM_HandleTypeDef *)timer->parent.user_data;
tim_device = (struct stm32_clock_timer *)timer;
stm32_tim_pclkx_doubler_get(&pclk1_doubler, &pclk2_doubler);
/* time init */
/* Some series may only have APBPERIPH_BASE, don't have HAL_RCC_GetPCLK2Freq */
#if defined(APBPERIPH_BASE)
prescaler_value = (uint32_t)(HAL_RCC_GetPCLK1Freq() * pclk1_doubler / 10000) - 1;
#elif defined(APB1PERIPH_BASE) || defined(APB2PERIPH_BASE)
if ((rt_uint32_t)tim->Instance >= APB2PERIPH_BASE)
{
prescaler_value = (uint32_t)(HAL_RCC_GetPCLK2Freq() * pclk2_doubler / 10000) - 1;
}
else
{
prescaler_value = (uint32_t)(HAL_RCC_GetPCLK1Freq() * pclk1_doubler / 10000) - 1;
}
#endif
#if defined(SOC_SERIES_STM32N6)
prescaler_value = HAL_RCCEx_GetTIMGFreq() / 1000 / 1000;
#endif
tim->Init.Period = 10000 - 1;
tim->Init.Prescaler = prescaler_value;
tim->Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
if (timer->info->cntmode == CLOCK_TIMER_CNTMODE_UP)
{
tim->Init.CounterMode = TIM_COUNTERMODE_UP;
}
else
{
tim->Init.CounterMode = TIM_COUNTERMODE_DOWN;
}
tim->Init.RepetitionCounter = 0;
#if defined(SOC_SERIES_STM32F1) || defined(SOC_SERIES_STM32G4) || defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32G0) || defined(SOC_SERIES_STM32MP1) || defined(SOC_SERIES_STM32WB) || defined(SOC_SERIES_STM32N6)
tim->Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
#endif
if (HAL_TIM_Base_Init(tim) != HAL_OK)
{
LOG_E("%s init failed", tim_device->name);
return;
}
stm32_tim_enable_clock(tim);
HAL_NVIC_SetPriority(tim_device->tim_irqn, 3, 0); /* set the TIMx priority */
HAL_NVIC_EnableIRQ(tim_device->tim_irqn); /* enable the TIMx global Interrupt */
__HAL_TIM_CLEAR_FLAG(tim, TIM_FLAG_UPDATE); /* clear update flag */
__HAL_TIM_URS_ENABLE(tim); /* enable update request source */
LOG_D("%s init success", tim_device->name);
}
}
static rt_err_t timer_start(rt_clock_timer_t *timer, rt_uint32_t t, rt_clock_timer_mode_t opmode)
{
rt_err_t result = RT_EOK;
TIM_HandleTypeDef *tim = RT_NULL;
RT_ASSERT(timer != RT_NULL);
tim = (TIM_HandleTypeDef *)timer->parent.user_data;
/* set tim cnt */
__HAL_TIM_SET_COUNTER(tim, 0);
/* set tim arr */
__HAL_TIM_SET_AUTORELOAD(tim, t - 1);
if (opmode == CLOCK_TIMER_MODE_ONESHOT)
{
/* set timer to single mode */
tim->Instance->CR1 |= TIM_OPMODE_SINGLE;
}
else
{
tim->Instance->CR1 &= (~TIM_OPMODE_SINGLE);
}
/* start timer */
if (HAL_TIM_Base_Start_IT(tim) != HAL_OK)
{
LOG_E("TIM start failed");
result = -RT_ERROR;
}
return result;
}
static void timer_stop(rt_clock_timer_t *timer)
{
TIM_HandleTypeDef *tim = RT_NULL;
RT_ASSERT(timer != RT_NULL);
tim = (TIM_HandleTypeDef *)timer->parent.user_data;
/* stop timer */
HAL_TIM_Base_Stop_IT(tim);
/* set tim cnt */
__HAL_TIM_SET_COUNTER(tim, 0);
}
#if defined(RT_USING_CLOCK_TIMER_TRIGGER)
/**
* @brief Calculate STM32 timer divider values for hardware trigger output.
* @param timer Pointer to the RT-Thread clock timer device.
* @param freq_hz Target trigger frequency in hertz.
* @param prescaler Pointer to the output PSC register value.
* @param period Pointer to the output ARR register value.
* @return Operation status.
*/
static rt_err_t timer_trigger_calc(rt_clock_timer_t *timer, rt_uint32_t freq_hz, rt_uint32_t *prescaler, rt_uint32_t *period)
{
TIM_HandleTypeDef *tim;
rt_uint32_t timer_clk;
rt_uint32_t max_period;
rt_uint64_t cycles;
rt_uint64_t prescaler_div;
rt_uint64_t period_count;
rt_err_t result;
tim = (TIM_HandleTypeDef *)timer->parent.user_data;
result = stm32_tim_clock_get(tim, &timer_clk);
if (result != RT_EOK)
{
return result;
}
if (freq_hz > timer_clk)
{
return -RT_EINVAL;
}
cycles = ((rt_uint64_t)timer_clk + (freq_hz / 2U)) / freq_hz;
if (cycles == 0U)
{
return -RT_EINVAL;
}
max_period = ((timer->info != RT_NULL) && (timer->info->maxcnt != 0U)) ? timer->info->maxcnt : 0xffffU;
prescaler_div = (cycles + max_period - 1U) / max_period;
if ((prescaler_div == 0U) || (prescaler_div > 0x10000ULL))
{
return -RT_EINVAL;
}
period_count = cycles / prescaler_div;
if (period_count == 0U)
{
period_count = 1U;
}
if (period_count > max_period)
{
period_count = max_period;
}
*prescaler = (rt_uint32_t)(prescaler_div - 1U);
*period = (rt_uint32_t)(period_count - 1U);
return RT_EOK;
}
/** @brief Maximum compare channel index encoded by the STM32 TIM trigger backend. */
#define STM32_TIM_TRIGGER_COMPARE_CHANNEL_MAX 4U
/**
* @brief STM32 HAL timer compare channel slot.
*/
struct stm32_tim_compare_channel
{
rt_uint32_t channel; /**< HAL TIM channel selector. */
rt_uint32_t flag; /**< HAL TIM compare flag. */
rt_bool_t valid; /**< Whether channel and flag are valid. */
};
/**
* @brief HAL TIM compare channel table indexed by 1-based timer channel number.
*/
static const struct stm32_tim_compare_channel stm32_tim_compare_channel_table[STM32_TIM_TRIGGER_COMPARE_CHANNEL_MAX + 1U] = {
#if defined(TIM_CHANNEL_1) && defined(TIM_FLAG_CC1)
[1] = { TIM_CHANNEL_1, TIM_FLAG_CC1, RT_TRUE },
#endif /* defined(TIM_CHANNEL_1) && defined(TIM_FLAG_CC1) */
#if defined(TIM_CHANNEL_2) && defined(TIM_FLAG_CC2)
[2] = { TIM_CHANNEL_2, TIM_FLAG_CC2, RT_TRUE },
#endif /* defined(TIM_CHANNEL_2) && defined(TIM_FLAG_CC2) */
#if defined(TIM_CHANNEL_3) && defined(TIM_FLAG_CC3)
[3] = { TIM_CHANNEL_3, TIM_FLAG_CC3, RT_TRUE },
#endif /* defined(TIM_CHANNEL_3) && defined(TIM_FLAG_CC3) */
#if defined(TIM_CHANNEL_4) && defined(TIM_FLAG_CC4)
[4] = { TIM_CHANNEL_4, TIM_FLAG_CC4, RT_TRUE },
#endif /* defined(TIM_CHANNEL_4) && defined(TIM_FLAG_CC4) */
};
/**
* @brief Get a HAL compare channel slot from a 1-based timer channel number.
* @param channel 1-based timer compare channel number.
* @return Pointer to a valid channel slot, or RT_NULL when unsupported.
*/
static const struct stm32_tim_compare_channel *timer_trigger_compare_channel_get(rt_uint16_t channel)
{
const struct stm32_tim_compare_channel *slot;
if (channel >= RT_ARRAY_SIZE(stm32_tim_compare_channel_table))
{
return RT_NULL;
}
slot = &stm32_tim_compare_channel_table[channel];
return (slot->valid == RT_TRUE) ? slot : RT_NULL;
}
/**
* @brief Fill the common STM32 timer base configuration for trigger output.
* @param tim Pointer to the STM32 HAL timer handle.
* @param prescaler PSC register value.
* @param period ARR register value.
*/
static void timer_trigger_base_fill(TIM_HandleTypeDef *tim, rt_uint32_t prescaler, rt_uint32_t period)
{
tim->Init.Prescaler = prescaler;
tim->Init.Period = period;
tim->Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
tim->Init.CounterMode = TIM_COUNTERMODE_UP;
tim->Init.RepetitionCounter = 0;
#if defined(SOC_SERIES_STM32F1) || defined(SOC_SERIES_STM32G4) || defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32G0) || defined(SOC_SERIES_STM32MP1) || defined(SOC_SERIES_STM32WB)
tim->Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
#endif /* defined(SOC_SERIES_STM32F1) || defined(SOC_SERIES_STM32G4) || defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32G0) || defined(SOC_SERIES_STM32MP1) || defined(SOC_SERIES_STM32WB) */
}
/**
* @brief Configure one STM32 timer update event as a hardware trigger source.
* @param timer_device Pointer to the STM32 clock timer object.
* @param prescaler PSC register value.
* @param period ARR register value.
* @return Operation status.
*/
static rt_err_t timer_trigger_update_config(struct stm32_clock_timer *timer_device, rt_uint32_t prescaler, rt_uint32_t period)
{
#if defined(TIM_TRGO_UPDATE)
TIM_HandleTypeDef *tim;
TIM_MasterConfigTypeDef master = { 0 };
tim = &timer_device->tim_handle;
HAL_TIM_Base_Stop(tim);
timer_trigger_base_fill(tim, prescaler, period);
if (HAL_TIM_Base_Init(tim) != HAL_OK)
{
LOG_E("TIM trigger base init failed");
return -RT_ERROR;
}
master.MasterOutputTrigger = TIM_TRGO_UPDATE;
#if defined(TIM_MASTERSLAVEMODE_DISABLE)
master.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
#endif /* defined(TIM_MASTERSLAVEMODE_DISABLE) */
if (HAL_TIMEx_MasterConfigSynchronization(tim, &master) != HAL_OK)
{
LOG_E("TIM trigger master config failed");
return -RT_ERROR;
}
timer_device->trigger_event = CLOCK_TIMER_TRIGGER_EVENT_UPDATE;
timer_device->trigger_channel = 0U;
tim->Instance->CR1 &= (~TIM_OPMODE_SINGLE);
__HAL_TIM_SET_COUNTER(tim, 0);
__HAL_TIM_CLEAR_FLAG(tim, TIM_FLAG_UPDATE);
return RT_EOK;
#else
RT_UNUSED(timer_device);
RT_UNUSED(prescaler);
RT_UNUSED(period);
return -RT_ENOSYS;
#endif /* defined(TIM_TRGO_UPDATE) */
}
/**
* @brief Configure one STM32 timer compare event as a hardware trigger source.
* @param timer_device Pointer to the STM32 clock timer object.
* @param cfg Pointer to the hardware trigger configuration.
* @param prescaler PSC register value.
* @param period ARR register value.
* @return Operation status.
*/
static rt_err_t timer_trigger_compare_config(struct stm32_clock_timer *timer_device,
const struct rt_clock_timer_trigger_cfg *cfg,
rt_uint32_t prescaler, rt_uint32_t period)
{
#if defined(TIM_OCMODE_TIMING)
const struct stm32_tim_compare_channel *slot;
TIM_HandleTypeDef *tim;
TIM_OC_InitTypeDef oc = { 0 };
rt_uint32_t pulse;
slot = timer_trigger_compare_channel_get(cfg->channel);
if (slot == RT_NULL)
{
return -RT_EINVAL;
}
tim = &timer_device->tim_handle;
HAL_TIM_OC_Stop(tim, slot->channel);
HAL_TIM_Base_Stop(tim);
timer_trigger_base_fill(tim, prescaler, period);
if (HAL_TIM_Base_Init(tim) != HAL_OK)
{
LOG_E("TIM trigger compare base init failed");
return -RT_ERROR;
}
if (HAL_TIM_OC_Init(tim) != HAL_OK)
{
LOG_E("TIM trigger compare init failed");
return -RT_ERROR;
}
pulse = (period + 1U) / 2U;
if (pulse > period)
{
pulse = period;
}
oc.OCMode = TIM_OCMODE_PWM2;
oc.Pulse = pulse;
#if defined(TIM_OCPOLARITY_HIGH)
oc.OCPolarity = TIM_OCPOLARITY_HIGH;
#endif /* defined(TIM_OCPOLARITY_HIGH) */
#if defined(TIM_OCNPOLARITY_HIGH)
oc.OCNPolarity = TIM_OCNPOLARITY_HIGH;
#endif /* defined(TIM_OCNPOLARITY_HIGH) */
#if defined(TIM_OCFAST_DISABLE)
oc.OCFastMode = TIM_OCFAST_DISABLE;
#endif /* defined(TIM_OCFAST_DISABLE) */
#if defined(TIM_OCIDLESTATE_RESET)
oc.OCIdleState = TIM_OCIDLESTATE_RESET;
#endif /* defined(TIM_OCIDLESTATE_RESET) */
#if defined(TIM_OCNIDLESTATE_RESET)
oc.OCNIdleState = TIM_OCNIDLESTATE_RESET;
#endif /* defined(TIM_OCNIDLESTATE_RESET) */
if (HAL_TIM_OC_ConfigChannel(tim, &oc, slot->channel) != HAL_OK)
{
LOG_E("TIM trigger compare channel config failed");
return -RT_ERROR;
}
timer_device->trigger_event = CLOCK_TIMER_TRIGGER_EVENT_COMPARE;
timer_device->trigger_channel = cfg->channel;
tim->Instance->CR1 &= (~TIM_OPMODE_SINGLE);
__HAL_TIM_SET_COUNTER(tim, 0);
__HAL_TIM_CLEAR_FLAG(tim, slot->flag);
return RT_EOK;
#else
RT_UNUSED(timer_device);
RT_UNUSED(cfg);
RT_UNUSED(prescaler);
RT_UNUSED(period);
return -RT_ENOSYS;
#endif /* defined(TIM_OCMODE_TIMING) */
}
/**
* @brief Configure one STM32 timer as a hardware trigger source.
* @param timer Pointer to the RT-Thread clock timer device.
* @param cfg Pointer to the hardware trigger configuration.
* @return Operation status.
*/
static rt_err_t timer_trigger_config(rt_clock_timer_t *timer, const struct rt_clock_timer_trigger_cfg *cfg)
{
struct stm32_clock_timer *timer_device;
rt_uint32_t prescaler;
rt_uint32_t period;
rt_err_t result;
if (cfg->freq_hz == 0U)
{
return -RT_EINVAL;
}
if ((cfg->event != CLOCK_TIMER_TRIGGER_EVENT_UPDATE) &&
(cfg->event != CLOCK_TIMER_TRIGGER_EVENT_COMPARE))
{
return -RT_EINVAL;
}
timer_device = (struct stm32_clock_timer *)timer;
if (timer_device->time_device.parent.user_data == RT_NULL)
{
return -RT_EINVAL;
}
result = timer_trigger_calc(timer, cfg->freq_hz, &prescaler, &period);
if (result != RT_EOK)
{
return result;
}
stm32_tim_enable_clock(&timer_device->tim_handle);
switch (cfg->event)
{
case CLOCK_TIMER_TRIGGER_EVENT_UPDATE:
return timer_trigger_update_config(timer_device, prescaler, period);
case CLOCK_TIMER_TRIGGER_EVENT_COMPARE:
return timer_trigger_compare_config(timer_device, cfg, prescaler, period);
default:
return -RT_EINVAL;
}
}
/**
* @brief Start hardware trigger output on one STM32 timer.
* @param timer Pointer to the RT-Thread clock timer device.
* @return Operation status.
*/
static rt_err_t timer_trigger_start(rt_clock_timer_t *timer)
{
struct stm32_clock_timer *timer_device;
const struct stm32_tim_compare_channel *slot;
TIM_HandleTypeDef *tim;
timer_device = (struct stm32_clock_timer *)timer;
if (timer_device->time_device.parent.user_data == RT_NULL)
{
return -RT_EINVAL;
}
tim = &timer_device->tim_handle;
tim->Instance->CR1 &= (~TIM_OPMODE_SINGLE);
__HAL_TIM_SET_COUNTER(tim, 0);
if (timer_device->trigger_event == CLOCK_TIMER_TRIGGER_EVENT_COMPARE)
{
slot = timer_trigger_compare_channel_get(timer_device->trigger_channel);
if (slot == RT_NULL)
{
return -RT_EINVAL;
}
__HAL_TIM_CLEAR_FLAG(tim, slot->flag);
return (HAL_TIM_OC_Start(tim, slot->channel) == HAL_OK) ? RT_EOK : -RT_ERROR;
}
__HAL_TIM_CLEAR_FLAG(tim, TIM_FLAG_UPDATE);
return (HAL_TIM_Base_Start(tim) == HAL_OK) ? RT_EOK : -RT_ERROR;
}
/**
* @brief Stop hardware trigger output on one STM32 timer.
* @param timer Pointer to the RT-Thread clock timer device.
* @return Operation status.
*/
static rt_err_t timer_trigger_stop(rt_clock_timer_t *timer)
{
struct stm32_clock_timer *timer_device;
const struct stm32_tim_compare_channel *slot;
TIM_HandleTypeDef *tim;
rt_err_t result;
timer_device = (struct stm32_clock_timer *)timer;
if (timer_device->time_device.parent.user_data == RT_NULL)
{
return -RT_EINVAL;
}
tim = &timer_device->tim_handle;
if (timer_device->trigger_event == CLOCK_TIMER_TRIGGER_EVENT_COMPARE)
{
slot = timer_trigger_compare_channel_get(timer_device->trigger_channel);
if (slot == RT_NULL)
{
return -RT_EINVAL;
}
result = (HAL_TIM_OC_Stop(tim, slot->channel) == HAL_OK) ? RT_EOK : -RT_ERROR;
__HAL_TIM_CLEAR_FLAG(tim, slot->flag);
}
else
{
result = (HAL_TIM_Base_Stop(tim) == HAL_OK) ? RT_EOK : -RT_ERROR;
__HAL_TIM_CLEAR_FLAG(tim, TIM_FLAG_UPDATE);
}
__HAL_TIM_SET_COUNTER(tim, 0);
return result;
}
/**
* @brief Release and deinitialize hardware trigger output on one STM32 timer.
* @param timer Pointer to the RT-Thread clock timer device.
* @return Operation status.
* @note Timer trigger sources are dedicated to trigger output. Releasing a
* trigger source stops the timer, clears the trigger output when the HAL
* exposes a reset selector, and deinitializes the HAL TIM base state. It
* does not unregister the RT-Thread timer device object.
*/
static rt_err_t timer_trigger_release(rt_clock_timer_t *timer)
{
struct stm32_clock_timer *timer_device;
TIM_HandleTypeDef *tim;
rt_err_t result = RT_EOK;
timer_device = (struct stm32_clock_timer *)timer;
if (timer_device->time_device.parent.user_data == RT_NULL)
{
return -RT_EINVAL;
}
tim = &timer_device->tim_handle;
if (timer_trigger_stop(timer) != RT_EOK)
{
result = -RT_ERROR;
}
#if defined(TIM_TRGO_RESET)
TIM_MasterConfigTypeDef master = { 0 };
master.MasterOutputTrigger = TIM_TRGO_RESET;
#if defined(TIM_MASTERSLAVEMODE_DISABLE)
master.MasterSlaveMode = TIM_MASTERSLAVEMODE_DISABLE;
#endif /* defined(TIM_MASTERSLAVEMODE_DISABLE) */
if (HAL_TIMEx_MasterConfigSynchronization(tim, &master) != HAL_OK)
{
result = -RT_ERROR;
}
#endif /* defined(TIM_TRGO_RESET) */
if (HAL_TIM_Base_DeInit(tim) != HAL_OK)
{
result = -RT_ERROR;
}
timer_device->trigger_event = CLOCK_TIMER_TRIGGER_EVENT_UPDATE;
timer_device->trigger_channel = 0U;
return result;
}
#endif /* defined(RT_USING_CLOCK_TIMER_TRIGGER) */
static rt_err_t timer_ctrl(rt_clock_timer_t *timer, rt_uint32_t cmd, void *arg)
{
TIM_HandleTypeDef *tim = RT_NULL;
rt_err_t result = -RT_ERROR;
uint32_t pclk1_doubler, pclk2_doubler;
RT_ASSERT(timer != RT_NULL);
tim = (TIM_HandleTypeDef *)timer->parent.user_data;
switch (cmd)
{
case CLOCK_TIMER_CTRL_FREQ_SET:
{
rt_uint32_t freq;
rt_uint16_t val = 0;
if (arg == RT_NULL)
{
result = -RT_EINVAL;
break;
}
/* set timer frequence */
freq = *((rt_uint32_t *)arg);
stm32_tim_pclkx_doubler_get(&pclk1_doubler, &pclk2_doubler);
#if defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7)
if (0
#ifdef TIM1
|| tim->Instance == TIM1
#endif /* TIM1 */
#ifdef TIM8
|| tim->Instance == TIM8
#endif /* TIM8 */
#ifdef TIM9
|| tim->Instance == TIM9
#endif /* TIM9 */
#ifdef TIM10
|| tim->Instance == TIM10
#endif /* TIM10 */
#ifdef TIM11
|| tim->Instance == TIM11
#endif /* TIM11 */
)
#elif defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32G4)
if (0
#ifdef TIM15
|| tim->Instance == TIM15
#endif /* TIM15 */
#ifdef TIM16
|| tim->Instance == TIM16
#endif /* TIM16 */
#ifdef TIM17
|| tim->Instance == TIM17
#endif /* TIM17 */
)
#elif defined(SOC_SERIES_STM32WB)
if (0
#ifdef TIM16
|| tim->Instance == TIM16
#endif /* TIM16 */
#ifdef TIM17
|| tim->Instance == TIM17
#endif /* TIM17 */
)
#elif defined(SOC_SERIES_STM32MP1)
if (0
#ifdef TIM14
|| tim->Instance == TIM14
#endif /* TIM14 */
#ifdef TIM16
|| tim->Instance == TIM16
#endif /* TIM16 */
#ifdef TIM17
|| tim->Instance == TIM17
#endif /* TIM17 */
)
#elif defined(SOC_SERIES_STM32F1) || defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32G0) || defined(SOC_SERIES_STM32H7) || defined(SOC_SERIES_STM32N6)
if (0)
#else
#error "This driver has not supported this series yet!"
#endif /* defined(SOC_SERIES_STM32F2) || defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7) */
{
#if !defined(SOC_SERIES_STM32F0) && !defined(SOC_SERIES_STM32G0)
val = HAL_RCC_GetPCLK2Freq() * pclk2_doubler / freq;
#endif /* !defined(SOC_SERIES_STM32F0) && !defined(SOC_SERIES_STM32G0) */
}
else
{
#if defined(SOC_SERIES_STM32N6)
val = HAL_RCCEx_GetTIMGFreq() / freq;
#else
val = HAL_RCC_GetPCLK1Freq() * pclk1_doubler / freq;
#endif
}
__HAL_TIM_SET_PRESCALER(tim, val - 1);
/* Update frequency value */
tim->Instance->EGR |= TIM_EVENTSOURCE_UPDATE;
result = RT_EOK;
}
break;
#if defined(RT_USING_CLOCK_TIMER_TRIGGER)
case CLOCK_TIMER_CTRL_TRIGGER_CONFIG:
{
if (arg == RT_NULL)
{
result = -RT_EINVAL;
break;
}
result = timer_trigger_config(timer, (const struct rt_clock_timer_trigger_cfg *)arg);
}
break;
case CLOCK_TIMER_CTRL_TRIGGER_START:
{
result = timer_trigger_start(timer);
}
break;
case CLOCK_TIMER_CTRL_TRIGGER_STOP:
{
result = timer_trigger_stop(timer);
}
break;
case CLOCK_TIMER_CTRL_TRIGGER_RELEASE:
{
result = timer_trigger_release(timer);
}
break;
#endif /* defined(RT_USING_CLOCK_TIMER_TRIGGER) */
default:
{
result = -RT_EINVAL;
}
break;
}
return result;
}
static rt_uint32_t timer_counter_get(rt_clock_timer_t *timer)
{
TIM_HandleTypeDef *tim = RT_NULL;
RT_ASSERT(timer != RT_NULL);
tim = (TIM_HandleTypeDef *)timer->parent.user_data;
return tim->Instance->CNT;
}
static const struct rt_clock_timer_info _info = TIM_DEV_INFO_CONFIG;
static const struct rt_clock_timer_ops _ops = {
.init = timer_init,
.start = timer_start,
.stop = timer_stop,
.count_get = timer_counter_get,
.control = timer_ctrl,
};
#ifdef BSP_USING_TIM2
void TIM2_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_clock_timer_obj[TIM2_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#if defined(STM32G0B0xx) || defined(STM32G0B1xx) || defined(STM32G0C1xx)
#if defined(BSP_USING_TIM3) || defined(BSP_USING_TIM4)
void TIM3_TIM4_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
#ifdef BSP_USING_TIM3
HAL_TIM_IRQHandler(&stm32_clock_timer_obj[TIM3_INDEX].tim_handle);
#endif
#ifdef BSP_USING_TIM4
HAL_TIM_IRQHandler(&stm32_clock_timer_obj[TIM4_INDEX].tim_handle);
#endif
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#else
#ifdef BSP_USING_TIM3
void TIM3_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_clock_timer_obj[TIM3_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM4
void TIM4_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_clock_timer_obj[TIM4_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#endif
#ifdef BSP_USING_TIM5
void TIM5_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_clock_timer_obj[TIM5_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM6
void TIM6_DAC_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_clock_timer_obj[TIM6_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM7
void TIM7_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_clock_timer_obj[TIM7_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM8
void TIM8_UP_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_clock_timer_obj[TIM8_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM11
void TIM1_TRG_COM_TIM11_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_clock_timer_obj[TIM11_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM13
void TIM8_UP_TIM13_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_clock_timer_obj[TIM13_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM14
#if defined(SOC_SERIES_STM32F4) || defined(SOC_SERIES_STM32F7)
void TIM8_TRG_COM_TIM14_IRQHandler(void)
#elif defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32MP1)
void TIM14_IRQHandler(void)
#endif
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_clock_timer_obj[TIM14_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM15
void TIM1_BRK_TIM15_IRQHandler(void)
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_clock_timer_obj[TIM15_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM16
#if defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32WB) || defined(SOC_SERIES_STM32G4)
void TIM1_UP_TIM16_IRQHandler(void)
#elif defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32MP1)
void TIM16_IRQHandler(void)
#endif
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_clock_timer_obj[TIM16_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
#ifdef BSP_USING_TIM17
#if defined(SOC_SERIES_STM32L4) || defined(SOC_SERIES_STM32WB) || defined(SOC_SERIES_STM32G4)
void TIM1_TRG_COM_TIM17_IRQHandler(void)
#elif defined(SOC_SERIES_STM32F0) || defined(SOC_SERIES_STM32MP1)
void TIM17_IRQHandler(void)
#endif
{
/* enter interrupt */
rt_interrupt_enter();
HAL_TIM_IRQHandler(&stm32_clock_timer_obj[TIM17_INDEX].tim_handle);
/* leave interrupt */
rt_interrupt_leave();
}
#endif
void HAL_TIM_PeriodElapsedCallback(TIM_HandleTypeDef *htim)
{
#ifdef BSP_USING_TIM2
if (htim->Instance == TIM2)
{
rt_clock_timer_isr(&stm32_clock_timer_obj[TIM2_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM3
if (htim->Instance == TIM3)
{
rt_clock_timer_isr(&stm32_clock_timer_obj[TIM3_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM4
if (htim->Instance == TIM4)
{
rt_clock_timer_isr(&stm32_clock_timer_obj[TIM4_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM5
if (htim->Instance == TIM5)
{
rt_clock_timer_isr(&stm32_clock_timer_obj[TIM5_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM6
if (htim->Instance == TIM6)
{
rt_clock_timer_isr(&stm32_clock_timer_obj[TIM6_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM7
if (htim->Instance == TIM7)
{
rt_clock_timer_isr(&stm32_clock_timer_obj[TIM7_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM8
if (htim->Instance == TIM8)
{
rt_clock_timer_isr(&stm32_clock_timer_obj[TIM8_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM11
if (htim->Instance == TIM11)
{
rt_clock_timer_isr(&stm32_clock_timer_obj[TIM11_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM13
if (htim->Instance == TIM13)
{
rt_clock_timer_isr(&stm32_clock_timer_obj[TIM13_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM14
if (htim->Instance == TIM14)
{
rt_clock_timer_isr(&stm32_clock_timer_obj[TIM14_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM15
if (htim->Instance == TIM15)
{
rt_clock_timer_isr(&stm32_clock_timer_obj[TIM15_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM16
if (htim->Instance == TIM16)
{
rt_clock_timer_isr(&stm32_clock_timer_obj[TIM16_INDEX].time_device);
}
#endif
#ifdef BSP_USING_TIM17
if (htim->Instance == TIM17)
{
rt_clock_timer_isr(&stm32_clock_timer_obj[TIM17_INDEX].time_device);
}
#endif
}
static int stm32_clock_timer_init(void)
{
rt_uint32_t i = 0;
int result = RT_EOK;
for (i = 0; i < sizeof(stm32_clock_timer_obj) / sizeof(stm32_clock_timer_obj[0]); i++)
{
stm32_clock_timer_obj[i].time_device.info = &_info;
stm32_clock_timer_obj[i].time_device.ops = &_ops;
if (rt_clock_timer_register(&stm32_clock_timer_obj[i].time_device,
stm32_clock_timer_obj[i].name, &stm32_clock_timer_obj[i].tim_handle) == RT_EOK)
{
LOG_D("%s register success", stm32_clock_timer_obj[i].name);
}
else
{
LOG_E("%s register failed", stm32_clock_timer_obj[i].name);
result = -RT_ERROR;
}
}
return result;
}
INIT_BOARD_EXPORT(stm32_clock_timer_init);
#endif /* BSP_USING_TIM */
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