periph_conf.h

/**
 * @name PWM configuration
 * @{
 */
#define PWM_NUMOF           (2U)
#define PWM_0_EN            1
#define PWM_1_EN            1
#define PWM_MAX_CHANNELS    1

/* PWM 0 device configuration */
#define PWM_0_DEV           TIM2
#define PWM_0_CHANNELS      1
#define PWM_0_CLK           (32000000U)
#define PWM_0_CLKEN()       (RCC->APB1ENR|= RCC_APB1ENR_TIM2EN)
#define PWM_0_CLKDIS()      (RCC->APB1ENR &= ~(RCC_APB1ENR_TIM2EN))
/* PWM 0 pin configuration */
#define PWM_0_PORT          GPIOC
#define PWM_0_PORT_CLKEN()  (RCC->AHBENR |= RCC_AHBENR_GPIOCEN)
#define PWM_0_PIN_CH0       3 // Ardumoto shield (PWMA 3)
#define PWM_0_PIN_AF        3 // Don't know (stm32L152RE pin link to ardumoto pin PWMA ? )

/* PWM 1 device configuration */
#define PWM_1_DEV           TIM3
#define PWM_1_CHANNELS      1
#define PWM_1_CLK           (32000000U)
#define PWM_1_CLKEN()       (RCC->APB1ENR |= RCC_APB1ENR_TIM3EN)
#define PWM_1_CLKDIS()      (RCC->APB1ENR &= ~(RCC_APB1ENR_TIM3EN))
/* PWM 1 pin configuration */
#define PWM_1_PORT          GPIOD
#define PWM_1_PORT_CLKEN()  (RCC->AHBENR |= RCC_AHBENR_GPIODEN)
#define PWM_1_PIN_CH0       11 // Ardumoto shield (PWMB 11)
#define PWM_1_PIN_AF        11 // Don't know (stm32L152RE pin link to ardumoto pin PWMB ? )