STM32F103 Timer 3

TIM_SetCompare1 (TIM1, 200);  // DISPLAY 1

TIM_SetCompare2 (TIM1, 400);  // DISPLAY 2

TIM_SetCompare3 (TIM1, 500);  // CHARGE PUMP

TIM_SetCompare1 (TIM3, 499);  // Test1

TIM_SetCompare2 (TIM3, 499);  // Test2

#define PWMPINCHARGEPUMP GPIO_Pin_15  //TIM1_CH3N

#define PWMPINDISPLAY100 GPIO_Pin_14   //TIM1_CH2N

#define PWMPINDISPLAY120 GPIO_Pin_13   //TIM1_CH1N

#define PWMTIM1RCC    RCC_APB2Periph_GPIOB

#define PWMTIM1PORT    GPIOB

void PwmTim1Init()

{

  GPIO_InitTypeDef GPIO_InitStructure;

  TIM_TimeBaseInitTypeDef TIM_TimeBase_InitStructure;

  TIM_OCInitTypeDef TIM_OC_InitStructure;

  RCC_APB2PeriphClockCmd(PWMTIM1RCC | RCC_APB2Periph_AFIO | RCC_APB2Periph_TIM1, ENABLE);

  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;

  GPIO_InitStructure.GPIO_Pin = PWMPINCHARGEPUMP | PWMPINDISPLAY100 | PWMPINDISPLAY120;

  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

  GPIO_Init(PWMTIM1PORT, &GPIO_InitStructure);

  TIM_TimeBase_InitStructure.TIM_ClockDivision = TIM_CKD_DIV1;

  TIM_TimeBase_InitStructure.TIM_CounterMode = TIM_CounterMode_Up;

  TIM_TimeBase_InitStructure.TIM_Period = 999;

  TIM_TimeBase_InitStructure.TIM_Prescaler = 0;

  TIM_TimeBaseInit(TIM1, &TIM_TimeBase_InitStructure);

  TIM_OC_InitStructure.TIM_OCMode = TIM_OCMode_PWM1;

  TIM_OC_InitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset;

  TIM_OC_InitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Set;

  TIM_OC_InitStructure.TIM_OCPolarity = TIM_OCPolarity_High;

  TIM_OC_InitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;

  //TIM_OC_InitStructure.TIM_OutputState = TIM_OutputState_Enable;

  //TIM_OC_InitStructure.TIM_OutputNState = TIM_OutputNState_Disable;

  TIM_OC_InitStructure.TIM_OutputState = TIM_OutputState_Disable;

  TIM_OC_InitStructure.TIM_OutputNState = TIM_OutputNState_Enable;

  TIM_OC_InitStructure.TIM_Pulse = 100;

  TIM_OC1Init(TIM1, &TIM_OC_InitStructure);

  TIM_OC2Init(TIM1, &TIM_OC_InitStructure);

  TIM_OC3Init(TIM1, &TIM_OC_InitStructure);

  //TIM_OC4Init(TIM1, &TIM_OC_InitStructure);

  TIM_Cmd(TIM1, ENABLE);

  TIM_CtrlPWMOutputs(TIM1, ENABLE);

}

#define PWMSPK1     GPIO_Pin_6  //TIM3_CH1

#define PWMSPK2     GPIO_Pin_7   //TIM3_CH2

#define PWMTIM3RCC    RCC_APB2Periph_GPIOA

#define PWMTIM3PORT    GPIOA

void PwmTim3Init()

{

  GPIO_InitTypeDef GPIO_InitStructure;

  TIM_TimeBaseInitTypeDef TIM_TimeBase_InitStructure;

  TIM_OCInitTypeDef TIM_OC_InitStructure;

  RCC_APB2PeriphClockCmd(PWMTIM3RCC | RCC_APB2Periph_AFIO, ENABLE);

  RCC_APB1PeriphClockCmd(RCC_APB1Periph_TIM3, ENABLE);

  //RCC_APB2PeriphClockCmd(0xFFFF, ENABLE);

  GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;

  GPIO_InitStructure.GPIO_Pin = PWMSPK1 | PWMSPK2;

  GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;

  GPIO_Init(PWMTIM3PORT, &GPIO_InitStructure);

  TIM_TimeBase_InitStructure.TIM_ClockDivision = TIM_CKD_DIV1;

  TIM_TimeBase_InitStructure.TIM_CounterMode = TIM_CounterMode_Up;

  TIM_TimeBase_InitStructure.TIM_Period = 999;

  TIM_TimeBase_InitStructure.TIM_Prescaler = 0;

  TIM_TimeBaseInit(TIM1, &TIM_TimeBase_InitStructure);

  TIM_OC_InitStructure.TIM_OCMode = TIM_OCMode_PWM1;

  TIM_OC_InitStructure.TIM_OCIdleState = TIM_OCIdleState_Reset;

  TIM_OC_InitStructure.TIM_OCNIdleState = TIM_OCNIdleState_Set;

  TIM_OC_InitStructure.TIM_OCPolarity = TIM_OCPolarity_High;

  TIM_OC_InitStructure.TIM_OCNPolarity = TIM_OCNPolarity_High;

TIM_OC_InitStructure.TIM_OutputState = TIM_OutputState_Enable;

TIM_OC_InitStructure.TIM_OutputNState = TIM_OutputNState_Disable;

  TIM_OC_InitStructure.TIM_Pulse = 100;

  TIM_OC1Init(TIM3, &TIM_OC_InitStructure);

  TIM_OC2Init(TIM3, &TIM_OC_InitStructure);

  TIM_Cmd(TIM3, ENABLE);

  TIM_CtrlPWMOutputs(TIM3, ENABLE);

}