proteus仿真stm32控制呼吸灯
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2022-04-08 22:44:17
proteus仿真stm32控制呼吸灯设计思路:采用stm32f103r6为主控芯片,及led-green;时钟源为晶振为8M的系统内部时钟;使用的定时器为TIM2,并且使用PWM Generation CH1为PWM输出;proteus仿真电路设计软件设计:/*** TIM2和PWM配置 ***/TIM_HandleTypeDef htim2; /* TIM2 init function */void MX_TIM2_Init(void){ TIM_Cloc...
proteus仿真stm32控制呼吸灯
- 设计思路:
采用stm32f103r6为主控芯片,及led-green;时钟源为晶振为8M的系统内部时钟;使用的定时器为TIM2,并且使用PWM Generation CH1为PWM输出;
- proteus仿真电路设计
- 软件设计:
/*** TIM2和PWM配置 ***/
TIM_HandleTypeDef htim2;
/* TIM2 init function */
void MX_TIM2_Init(void)
{
TIM_ClockConfigTypeDef sClockSourceConfig = {0};
TIM_MasterConfigTypeDef sMasterConfig = {0};
TIM_OC_InitTypeDef sConfigOC = {0};
htim2.Instance = TIM2; htim2.Init.Prescaler = 8000-1;
htim2.Init.CounterMode = TIM_COUNTERMODE_UP;
htim2.Init.Period = 100-1;
htim2.Init.ClockDivision = TIM_CLOCKDIVISION_DIV1;
htim2.Init.AutoReloadPreload = TIM_AUTORELOAD_PRELOAD_DISABLE;
if (HAL_TIM_Base_Init(&htim2) != HAL_OK)
{
Error_Handler();
}
sClockSourceConfig.ClockSource = TIM_CLOCKSOURCE_INTERNAL;
if (HAL_TIM_ConfigClockSource(&htim2, &sClockSourceConfig) != HAL_OK)
{
Error_Handler();
}
if (HAL_TIM_PWM_Init(&htim2) != HAL_OK)
{
Error_Handler();
}
sMasterConfig.MasterOutputTrigger = TIM_TRGO_RESET;
sMasterConfig.MasterSlaveModeTIM_MASTERSLAVEMODE_DISABLE;
if (HAL_TIMEx_MasterConfigSynchronization(&htim2, &sMasterConfig) != HAL_OK)
{
Error_Handler();
}
sConfigOC.OCMode = TIM_OCMODE_PWM1;
sConfigOC.Pulse = 50;
sConfigOC.OCPolarity = TIM_OCPOLARITY_HIGH;
sConfigOC.OCFastMode = TIM_OCFAST_DISABLE;
if (HAL_TIM_PWM_ConfigChannel(&htim2, &sConfigOC, TIM_CHANNEL_1) != HAL_OK)
{
Error_Handler();
}
HAL_TIM_MspPostInit(&htim2);
}
/*** 开启PWM ***/
HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_1);
/*** 主函数 ***/
int main(void)
{
/* USER CODE BEGIN 1 */
/* USER CODE END 1 */
/* MCU Configuration--------------------------------------------------------*/
/* Reset of all peripherals, Initializes the Flash interface and the Systick. */
HAL_Init();
/* USER CODE BEGIN Init */
/* USER CODE END Init */
/* Configure the system clock */
ystemClock_Config();
/* USER CODE BEGIN SysInit */
/* USER CODE END SysInit */
/* Initialize all configured peripherals */
MX_GPIO_Init();
MX_TIM2_Init();
/* USER CODE BEGIN 2 */
HAL_TIM_PWM_Start(&htim2, TIM_CHANNEL_1);
int i = 0;
/* USER CODE END 2 */
/* Infinite loop */
/* USER CODE BEGIN WHILE */
while (1)
{
/* USER CODE END WHILE */
/* USER CODE BEGIN 3 */
for(i=0;i<=100;i++)
{
__HAL_TIM_SET_COMPARE(&htim2, TIM_CHANNEL_1, i);
HAL_Delay(100);
i+=9;
}
for(i=100;i>=0;i--)
{
__HAL_TIM_SET_COMPARE(&htim2, TIM_CHANNEL_1, i);
HAL_Delay(100);
i-=9;
}
}
/* USER CODE END 3 */
}
- Keil仿真PWM引脚输出波形:
本文地址:https://blog.csdn.net/weixin_45323971/article/details/107433930
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