[bsp][ch32v307]添加了pwm驱动 (#6519)

* [bsp][ch32v307]添加了 pwm 驱动

bsp/wch/risc-v/Libraries/ch32_drivers/SConscript

@@ -30,6 +30,9 @@ if  GetDepend('SOC_RISCV_FAMILY_CH32'):
     if GetDepend('BSP_USING_CAN'):
         src += ['drv_can.c']	
 
+    if GetDepend('BSP_USING_PWM'):
+        src += ['drv_pwm.c']
+
 group = DefineGroup('Drivers', src, depend = [''], CPPPATH = path)
 
 Return('group')

bsp/wch/risc-v/Libraries/ch32_drivers/drv_pwm.c

@@ -0,0 +1,628 @@
+/*
+ * Copyright (c) 2006-2022, RT-Thread Development Team
+ *
+ * SPDX-License-Identifier: Apache-2.0
+ *
+ * Change Logs:
+ * Date           Author            Notes
+ * 2021-09-23     charlown          first version
+ * 2022-10-14     hg0720            the first version which add from wch
+ */
+
+#include <rtthread.h>
+#include <rtdevice.h>
+#include <drivers/rt_drv_pwm.h>
+#include <drivers/hwtimer.h>
+#include <board.h>
+
+#ifdef BSP_USING_PWM
+
+#define LOG_TAG "drv.pwm"
+#include <drv_log.h>
+
+#ifndef ITEM_NUM
+#define ITEM_NUM(items) sizeof(items) / sizeof(items[0])
+#endif
+
+#define MAX_COUNTER 65535
+#define MIN_COUNTER 2
+#define MIN_PULSE 2
+
+struct rtdevice_pwm_device
+{
+    struct rt_device_pwm parent;
+    TIM_TypeDef* periph;
+    rt_uint8_t channel[4];
+    char* name;
+};
+
+void ch32_tim_clock_init(TIM_TypeDef* timx)
+{
+    if (timx == TIM1)
+    {
+        RCC_APB2PeriphClockCmd(RCC_APB2Periph_TIM1, ENABLE);
+    }
+    if (timx == TIM2)
+    {
+        RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM2, ENABLE);
+    }
+    if (timx == TIM3)
+    {
+        RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);
+    }
+    if (timx == TIM4)
+    {
+        RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM4, ENABLE);
+    }
+}
+
+rt_uint32_t ch32_tim_clock_get(TIM_TypeDef* timx)
+{
+    RCC_ClocksTypeDef RCC_Clocks;
+    RCC_GetClocksFreq(&RCC_Clocks);
+
+    /*tim1~4 all in HCLK*/
+    return RCC_Clocks.HCLK_Frequency;
+}
+
+struct rt_hwtimer_info hwtimer_info1 =
+{
+    .maxfreq = 1000000,
+    .minfreq = 2000,
+    .maxcnt = 0xFFFF,
+    .cntmode = HWTIMER_CNTMODE_UP,
+};
+
+struct rt_hwtimer_info hwtimer_info2 =
+{
+    .maxfreq = 1000000,
+    .minfreq = 2000,
+    .maxcnt = 0xFFFF,
+    .cntmode = HWTIMER_CNTMODE_UP,
+
+};
+
+struct rt_hwtimer_info hwtimer_info3 =
+{
+    .maxfreq = 1000000,
+    .minfreq = 2000,
+    .maxcnt = 0xFFFF,
+    .cntmode = HWTIMER_CNTMODE_UP,
+
+};
+
+struct rt_hwtimer_info hwtimer_info4 =
+{
+    .maxfreq = 1000000,
+    .minfreq = 2000,
+    .maxcnt = 0xFFFF,
+    .cntmode = HWTIMER_CNTMODE_UP,
+
+};
+
+struct rt_hwtimer_info* ch32_hwtimer_info_config_get(TIM_TypeDef* timx)
+{
+    struct rt_hwtimer_info* info = RT_NULL;
+
+    if (timx == TIM1)
+    {
+        info = &hwtimer_info1;
+    }
+    else if (timx == TIM2)
+    {
+        info = &hwtimer_info2;
+    }
+    else if (timx == TIM3)
+    {
+        info = &hwtimer_info3;
+    }
+    else if (timx == TIM4)
+    {
+        info = &hwtimer_info4;
+    }
+
+    return info;
+}
+
+void ch32_pwm_io_init(TIM_TypeDef* timx, rt_uint8_t channel)
+{
+    GPIO_InitTypeDef GPIO_InitStructure;
+
+    if (timx == TIM1)
+    {
+        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
+
+        if (channel == TIM_Channel_1)
+        {
+            GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
+            GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+            GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+            GPIO_Init(GPIOA, &GPIO_InitStructure);
+        }
+        if (channel == TIM_Channel_2)
+        {
+            GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
+            GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+            GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+            GPIO_Init(GPIOA, &GPIO_InitStructure);
+        }
+        if (channel == TIM_Channel_3)
+        {
+            GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
+            GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+            GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+            GPIO_Init(GPIOA, &GPIO_InitStructure);
+        }
+        if (channel == TIM_Channel_4)
+        {
+            GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
+            GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+            GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+            GPIO_Init(GPIOA, &GPIO_InitStructure);
+        }
+    }
+
+    if (timx == TIM2)
+    {
+        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
+
+        if (channel == TIM_Channel_1)
+        {
+            GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
+            GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+            GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+            GPIO_Init(GPIOA, &GPIO_InitStructure);
+        }
+        if (channel == TIM_Channel_2)
+        {
+            GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
+            GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+            GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+            GPIO_Init(GPIOA, &GPIO_InitStructure);
+        }
+        if (channel == TIM_Channel_3)
+        {
+            GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2;
+            GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+            GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+            GPIO_Init(GPIOA, &GPIO_InitStructure);
+        }
+        if (channel == TIM_Channel_4)
+        {
+            GPIO_InitStructure.GPIO_Pin = GPIO_Pin_3;
+            GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+            GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+            GPIO_Init(GPIOA, &GPIO_InitStructure);
+        }
+    }
+
+    if (timx == TIM3)
+    {
+        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
+        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
+
+        if (channel == TIM_Channel_1)
+        {
+            GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
+            GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+            GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+            GPIO_Init(GPIOA, &GPIO_InitStructure);
+        }
+        if (channel == TIM_Channel_2)
+        {
+            GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
+            GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+            GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+            GPIO_Init(GPIOA, &GPIO_InitStructure);
+        }
+        if (channel == TIM_Channel_3)
+        {
+            GPIO_InitStructure.GPIO_Pin = GPIO_Pin_0;
+            GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+            GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+            GPIO_Init(GPIOB, &GPIO_InitStructure);
+        }
+        if (channel == TIM_Channel_4)
+        {
+            GPIO_InitStructure.GPIO_Pin = GPIO_Pin_1;
+            GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+            GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+            GPIO_Init(GPIOB, &GPIO_InitStructure);
+        }
+    }
+
+    if (timx == TIM4)
+    {
+        RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
+
+        if (channel == TIM_Channel_1)
+        {
+            GPIO_InitStructure.GPIO_Pin = GPIO_Pin_6;
+            GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+            GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+            GPIO_Init(GPIOB, &GPIO_InitStructure);
+        }
+        if (channel == TIM_Channel_2)
+        {
+            GPIO_InitStructure.GPIO_Pin = GPIO_Pin_7;
+            GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+            GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+            GPIO_Init(GPIOB, &GPIO_InitStructure);
+        }
+        if (channel == TIM_Channel_3)
+        {
+            GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8;
+            GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+            GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+            GPIO_Init(GPIOB, &GPIO_InitStructure);
+        }
+        if (channel == TIM_Channel_4)
+        {
+            GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
+            GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
+            GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
+            GPIO_Init(GPIOB, &GPIO_InitStructure);
+        }
+    }
+}
+
+/*
+ * channel = 0xFF: the channel is not use.
+ */
+struct rtdevice_pwm_device pwm_device_list[] =
+{
+#ifdef BSP_USING_TIM1_PWM
+    {
+        .periph = TIM1,
+        .name = "pwm1",
+#ifdef BSP_USING_TIM1_PWM_CH1
+        .channel[0] = TIM_Channel_1,
+#else
+        .channel[0] = 0xFF,
+#endif
+
+#ifdef BSP_USING_TIM1_PWM_CH2
+        .channel[1] = TIM_Channel_2,
+#else
+        .channel[1] = 0xFF,
+#endif
+
+#ifdef BSP_USING_TIM1_PWM_CH3
+        .channel[2] = TIM_Channel_3,
+#else
+        .channel[2] = 0xFF,
+#endif
+
+#ifdef BSP_USING_TIM1_PWM_CH4
+        .channel[3] = TIM_Channel_4,
+#else
+        .channel[3] = 0xFF,
+#endif
+    },
+#endif /* BSP_USING_TIM1_PWM */
+
+#ifdef BSP_USING_TIM2_PWM
+    {
+        .periph = TIM2,
+        .name = "pwm2",
+#ifdef BSP_USING_TIM2_PWM_CH1
+        .channel[0] = TIM_Channel_1,
+#else
+        .channel[0] = 0xFF,
+#endif
+
+#ifdef BSP_USING_TIM2_PWM_CH2
+        .channel[1] = TIM_Channel_2,
+#else
+        .channel[1] = 0xFF,
+#endif
+
+#ifdef BSP_USING_TIM2_PWM_CH3
+        .channel[2] = TIM_Channel_3,
+#else
+        .channel[2] = 0xFF,
+#endif
+
+#ifdef BSP_USING_TIM2_PWM_CH4
+        .channel[3] = TIM_Channel_4,
+#else
+        .channel[3] = 0xFF,
+#endif
+    },
+#endif /* BSP_USING_TIM2_PWM */
+
+#ifdef BSP_USING_TIM3_PWM
+    {
+        .periph = TIM3,
+        .name = "pwm3",
+#ifdef BSP_USING_TIM3_PWM_CH1
+        .channel[0] = TIM_Channel_1,
+#else
+        .channel[0] = 0xFF,
+#endif
+
+#ifdef BSP_USING_TIM3_PWM_CH2
+        .channel[1] = TIM_Channel_2,
+#else
+        .channel[1] = 0xFF,
+#endif
+
+#ifdef BSP_USING_TIM3_PWM_CH3
+        .channel[2] = TIM_Channel_3,
+#else
+        .channel[2] = 0xFF,
+#endif
+
+#ifdef BSP_USING_TIM3_PWM_CH4
+        .channel[3] = TIM_Channel_4,
+#else
+        .channel[3] = 0xFF,
+#endif
+    },
+#endif /* BSP_USING_TIM3_PWM */
+
+#ifdef BSP_USING_TIM4_PWM
+    {
+        .periph = TIM4,
+        .name = "pwm4",
+#ifdef BSP_USING_TIM4_PWM_CH1
+        .channel[0] = TIM_Channel_1,
+#else
+        .channel[0] = 0xFF,
+#endif
+
+#ifdef BSP_USING_TIM4_PWM_CH2
+        .channel[1] = TIM_Channel_2,
+#else
+        .channel[1] = 0xFF,
+#endif
+
+#ifdef BSP_USING_TIM4_PWM_CH3
+        .channel[2] = TIM_Channel_3,
+#else
+        .channel[2] = 0xFF,
+#endif
+
+#ifdef BSP_USING_TIM4_PWM_CH4
+        .channel[3] = TIM_Channel_4,
+#else
+        .channel[3] = 0xFF,
+#endif
+    },
+#endif /* BSP_USING_TIM4_PWM */
+};
+
+static rt_err_t ch32_pwm_device_enable(struct rt_device_pwm* device, struct rt_pwm_configuration* configuration, rt_bool_t enable)
+{
+    struct rtdevice_pwm_device* pwm_device;
+    rt_uint32_t channel_index;
+    rt_uint16_t ccx_state;
+
+    pwm_device = (struct rtdevice_pwm_device*)device;
+    channel_index = configuration->channel;
+
+    if (enable == RT_TRUE)
+    {
+        ccx_state = TIM_CCx_Enable;
+    }
+    else
+    {
+        ccx_state = TIM_CCx_Disable;
+    }
+
+    if (channel_index <= 4 && channel_index > 0)
+    {
+        if (pwm_device->channel[channel_index - 1] == 0xFF)
+        {
+            return RT_EINVAL;
+        }
+        TIM_CCxCmd(pwm_device->periph, pwm_device->channel[channel_index - 1], ccx_state);
+    }
+    else
+    {
+        return RT_EINVAL;
+    }
+
+    TIM_Cmd(pwm_device->periph, ENABLE);
+
+    return RT_EOK;
+}
+
+static rt_err_t ch32_pwm_device_get(struct rt_device_pwm* device, struct rt_pwm_configuration* configuration)
+{
+    struct rtdevice_pwm_device* pwm_device;
+    rt_uint32_t arr_counter, ccr_counter, prescaler, sample_freq;
+    rt_uint32_t channel_index;
+    rt_uint32_t tim_clock;
+
+    pwm_device = (struct rtdevice_pwm_device*)device;
+    tim_clock = ch32_tim_clock_get(pwm_device->periph);
+    channel_index = configuration->channel;
+    arr_counter = pwm_device->periph->ATRLR + 1;
+    prescaler = pwm_device->periph->PSC + 1;
+    sample_freq = (tim_clock / prescaler) / arr_counter;
+
+    /* unit:ns */
+    configuration->period = 1000000000 / sample_freq;
+
+    if (channel_index == 1)
+    {
+        ccr_counter = pwm_device->periph->CH1CVR + 1;
+        configuration->pulse = ((ccr_counter * 100) / arr_counter) * configuration->period / 100;
+    }
+    else if (channel_index == 2)
+    {
+        ccr_counter = pwm_device->periph->CH2CVR + 1;
+        configuration->pulse = ((ccr_counter * 100) / arr_counter) * configuration->period / 100;
+    }
+    else if (channel_index == 3)
+    {
+        ccr_counter = pwm_device->periph->CH3CVR + 1;
+        configuration->pulse = ((ccr_counter * 100) / arr_counter) * configuration->period / 100;
+    }
+    else if (channel_index == 4)
+    {
+        ccr_counter = pwm_device->periph->CH4CVR + 1;
+        configuration->pulse = ((ccr_counter * 100) / arr_counter) * configuration->period / 100;
+    }
+    else
+    {
+        return RT_EINVAL;
+    }
+
+    return RT_EOK;
+}
+
+static rt_err_t ch32_pwm_device_set(struct rt_device_pwm* device, struct rt_pwm_configuration* configuration)
+{
+    struct rtdevice_pwm_device* pwm_device;
+    rt_uint32_t arr_counter, ccr_counter, prescaler, sample_freq;
+    rt_uint32_t channel_index;
+    rt_uint32_t tim_clock;
+    TIM_TimeBaseInitTypeDef TIM_TimeBaseInitType;
+    TIM_OCInitTypeDef TIM_OCInitType;
+
+    pwm_device = (struct rtdevice_pwm_device*)device;
+    tim_clock = ch32_tim_clock_get(pwm_device->periph);
+    channel_index = configuration->channel;
+
+    /* change to freq, unit:Hz */
+    sample_freq = 1000000000 / configuration->period;
+
+    /* counter = (tim_clk / prescaler) / sample_freq */
+    /* normally, tim_clk is not need div, if arr_counter over 65536, need div. */
+    prescaler = 1;
+    arr_counter = (tim_clock / prescaler) / sample_freq;
+
+    if (arr_counter > MAX_COUNTER)
+    {
+        /* need div tim_clock
+         * and round up the prescaler value.
+         * (tim_clock >> 16) = tim_clock / 65536
+         */
+        if ((tim_clock >> 16) % sample_freq == 0)
+            prescaler = (tim_clock >> 16) / sample_freq;
+        else
+            prescaler = (tim_clock >> 16) / sample_freq + 1;
+
+        /* counter = (tim_clk / prescaler) / sample_freq */
+        arr_counter = (tim_clock / prescaler) / sample_freq;
+    }
+    /* ccr_counter = duty cycle * arr_counter */
+    ccr_counter = (configuration->pulse * 100 / configuration->period) * arr_counter / 100;
+
+    /* check arr_counter > 1, cxx_counter > 1 */
+    if (arr_counter < MIN_COUNTER)
+    {
+        arr_counter = MIN_COUNTER;
+    }
+    if (ccr_counter < MIN_PULSE)
+    {
+        ccr_counter = MIN_PULSE;
+    }
+
+    /* TMRe base configuration */
+    TIM_TimeBaseStructInit(&TIM_TimeBaseInitType);
+    TIM_TimeBaseInitType.TIM_Period = arr_counter - 1;
+    TIM_TimeBaseInitType.TIM_Prescaler = prescaler - 1;
+    TIM_TimeBaseInitType.TIM_ClockDivision = TIM_CKD_DIV1;
+    TIM_TimeBaseInitType.TIM_CounterMode = TIM_CounterMode_Up;
+    TIM_TimeBaseInit(pwm_device->periph, &TIM_TimeBaseInitType);
+
+    TIM_OCStructInit(&TIM_OCInitType);
+    TIM_OCInitType.TIM_OCMode = TIM_OCMode_PWM1;
+    TIM_OCInitType.TIM_OutputState = TIM_OutputState_Enable;
+    TIM_OCInitType.TIM_Pulse = ccr_counter - 1;
+    TIM_OCInitType.TIM_OCPolarity = TIM_OCPolarity_High;
+
+    if (channel_index == 1)
+    {
+        TIM_OC1Init(pwm_device->periph, &TIM_OCInitType);
+        TIM_OC1PreloadConfig(pwm_device->periph, TIM_OCPreload_Disable);
+    }
+    else if (channel_index == 2)
+    {
+        TIM_OC2Init(pwm_device->periph, &TIM_OCInitType);
+        TIM_OC2PreloadConfig(pwm_device->periph, TIM_OCPreload_Disable);
+    }
+    else if (channel_index == 3)
+    {
+        TIM_OC3Init(pwm_device->periph, &TIM_OCInitType);
+        TIM_OC3PreloadConfig(pwm_device->periph, TIM_OCPreload_Disable);
+    }
+    else if (channel_index == 4)
+    {
+        TIM_OC4Init(pwm_device->periph, &TIM_OCInitType);
+        TIM_OC4PreloadConfig(pwm_device->periph, TIM_OCPreload_Disable);
+    }
+    else
+    {
+        return RT_EINVAL;
+    }
+
+    TIM_ARRPreloadConfig(pwm_device->periph, ENABLE);
+    TIM_CtrlPWMOutputs(pwm_device->periph, ENABLE);
+
+    return RT_EOK;
+}
+
+static rt_err_t drv_pwm_control(struct rt_device_pwm* device, int cmd, void* arg)
+{
+    struct rt_pwm_configuration* configuration;
+
+    configuration = (struct rt_pwm_configuration*)arg;
+
+    switch (cmd)
+    {
+    case PWM_CMD_ENABLE:
+        return ch32_pwm_device_enable(device, configuration, RT_TRUE);
+    case PWM_CMD_DISABLE:
+        return ch32_pwm_device_enable(device, configuration, RT_FALSE);
+    case PWM_CMD_SET:
+        return ch32_pwm_device_set(device, configuration);
+    case PWM_CMD_GET:
+        return ch32_pwm_device_get(device, configuration);
+    default:
+        return RT_EINVAL;
+    }
+}
+
+static struct rt_pwm_ops pwm_ops =
+{
+    .control = drv_pwm_control
+};
+
+static int rt_hw_pwm_init(void)
+{
+    int result = RT_EOK;
+    int index = 0;
+    int channel_index;
+
+    for (index = 0; index < ITEM_NUM(pwm_device_list); index++)
+    {
+        ch32_tim_clock_init(pwm_device_list[index].periph);
+        for (channel_index = 0; channel_index < sizeof(pwm_device_list[index].channel); channel_index++)
+        {
+            if (pwm_device_list[index].channel[channel_index] != 0xFF)
+            {
+                ch32_pwm_io_init(pwm_device_list[index].periph, pwm_device_list[index].channel[channel_index]);
+            }
+        }
+
+        if (rt_device_pwm_register(&pwm_device_list[index].parent, pwm_device_list[index].name, &pwm_ops, RT_NULL) == RT_EOK)
+        {
+            LOG_D("%s register success", pwm_device_list[index].name);
+        }
+        else
+        {
+            LOG_D("%s register failed", pwm_device_list[index].name);
+            result = -RT_ERROR;
+        }
+    }
+
+    return result;
+}
+
+INIT_BOARD_EXPORT(rt_hw_pwm_init);
+
+#endif /* BSP_USING_PWM */

bsp/wch/risc-v/ch32v307v-r1/board/Kconfig

@@ -137,10 +137,10 @@ menu "On-chip Peripheral Drivers"
         default n
         
         if BSP_USING_RTC
-                config BSP_USING_RTC_LSI
-                        bool "using LSI clock for rtc, if not, LSE default"
-                        select LSI_VALUE
-                        default n
+            config BSP_USING_RTC_LSI
+                bool "using LSI clock for rtc, if not, LSE default"
+                select LSI_VALUE
+                default n
         endif
 
     config LSI_VALUE
@@ -165,6 +165,167 @@ menu "On-chip Peripheral Drivers"
                     bool "using CAN2"
                     default n
             endif
+
+    config BSP_USING_TIM
+        bool "using TIMx"
+        default n
+
+        if BSP_USING_TIM
+            config BSP_USING_HWTIMER
+                bool
+                select RT_USING_HWTIMER
+                default n
+
+            config BSP_USING_PWM
+                bool
+                select RT_USING_PWM
+                default n
+
+            config BSP_USING_TIM1
+                bool "using TIM1"
+                default n
+
+                if BSP_USING_TIM1
+                    choice
+                        prompt "using TIM1 as hwtimer or PWM mode"
+                        default BSP_USING_TIM1_HWTIMER
+
+                        config BSP_USING_TIM1_HWTIMER
+                            bool "using TIM1 as hwtimer mode"
+                            select BSP_USING_HWTIMER
+
+                        config BSP_USING_TIM1_PWM
+                            bool "using TIM1 as PWM mode"
+                            select BSP_USING_PWM
+                    endchoice
+
+                    if BSP_USING_TIM1_PWM
+                        config BSP_USING_TIM1_PWM_CH1
+                            bool "using TIM1 channel 1"
+                            default n
+
+                        config BSP_USING_TIM1_PWM_CH2
+                            bool "using TIM1 channel 2"
+                            default n
+
+                        config BSP_USING_TIM1_PWM_CH3
+                            bool "using TIM1 channel 3"
+
+                        config BSP_USING_TIM1_PWM_CH4
+                            bool "using TIM1 channel 4"
+                    endif
+
+                endif
+
+            config BSP_USING_TIM2
+                    bool "using TIM2"
+                    default n
+
+                if BSP_USING_TIM2
+                    choice
+                        prompt "using TIM2 as hwtimer or PWM mode"
+                        default BSP_USING_TIM2_HWTIMER
+
+                        config BSP_USING_TIM2_HWTIMER
+                            bool "using TIM2 as hwtimer mode"
+                            select BSP_USING_HWTIMER
+
+                        config BSP_USING_TIM2_PWM
+                            bool "using TIM2 as PWM mode"
+                            select BSP_USING_PWM
+                    endchoice
+
+                    if BSP_USING_TIM2_PWM
+                        config BSP_USING_TIM2_PWM_CH1
+                            bool "using TIM2 channel 1"
+                            default n
+
+                        config BSP_USING_TIM2_PWM_CH2
+                            bool "using TIM2 channel 2"
+                            default n
+
+                        config BSP_USING_TIM2_PWM_CH3
+                            bool "using TIM2 channel 3"
+
+                        config BSP_USING_TIM2_PWM_CH4
+                            bool "using TIM2 channel 4"
+                    endif
+
+                endif
+
+            config BSP_USING_TIM3
+                    bool "using TIM3"
+                    default n
+
+                if BSP_USING_TIM3
+                    choice
+                        prompt "using TIM3 as hwtimer or PWM mode"
+                        default BSP_USING_TIM3_HWTIMER
+
+                        config BSP_USING_TIM3_HWTIMER
+                            bool "using TIM3 as hwtimer mode"
+                            select BSP_USING_HWTIMER
+
+                        config BSP_USING_TIM3_PWM
+                            bool "using TIM3 as PWM mode"
+                            select BSP_USING_PWM
+                    endchoice
+
+                    if BSP_USING_TIM3_PWM
+                        config BSP_USING_TIM3_PWM_CH1
+                            bool "using TIM3 channel 1"
+                            default n
+
+                        config BSP_USING_TIM3_PWM_CH2
+                            bool "using TIM3 channel 2"
+                            default n
+
+                        config BSP_USING_TIM3_PWM_CH3
+                            bool "using TIM3 channel 3"
+
+                        config BSP_USING_TIM3_PWM_CH4
+                            bool "using TIM3 channel 4"
+                    endif
+
+                endif
+
+            config BSP_USING_TIM4
+                    bool "using TIM4"
+                    default n
+
+                if BSP_USING_TIM4
+                    choice
+                        prompt "using TIM4 as hwtimer or PWM mode"
+                        default BSP_USING_TIM4_HWTIMER
+
+                        config BSP_USING_TIM4_HWTIMER
+                            bool "using TIM4 as hwtimer mode"
+                            select BSP_USING_HWTIMER
+
+                        config BSP_USING_TIM4_PWM
+                            bool "using TIM4 as PWM mode"
+                            select BSP_USING_PWM
+                    endchoice
+
+                    if BSP_USING_TIM4_PWM
+                        config BSP_USING_TIM4_PWM_CH1
+                            bool "using TIM4 channel 1"
+                            default n
+
+                        config BSP_USING_TIM4_PWM_CH2
+                            bool "using TIM4 channel 2"
+                            default n
+
+                        config BSP_USING_TIM4_PWM_CH3
+                            bool "using TIM4 channel 3"
+
+                        config BSP_USING_TIM4_PWM_CH4
+                            bool "using TIM4 channel 4"
+                    endif
+
+                endif
+
+        endif
 		
 endmenu