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RIOT/boards/nucleo-l1/include/periph_conf.h 4.21 KB
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  /*
   * Copyright (C) 2014 Freie Universitรคt Berlin
   *
   * This file is subject to the terms and conditions of the GNU Lesser General
   * Public License v2.1. See the file LICENSE in the top level directory for more
   * details.
   */
  
  /**
   * @ingroup     boards_nucleo-l1
   * @{
   *
   * @file
   * @brief       Peripheral MCU configuration for the nucleo-l1 board
   *
   * @author      Thomas Eichinger <thomas.eichinger@fu-berlin.de>
   */
  
  #ifndef PERIPH_CONF_H_
  #define PERIPH_CONF_H_
  
  #include "periph_cpu.h"
  
  #ifdef __cplusplus
  extern "C" {
  #endif
  
  /**
   * @name Clock system configuration
   * @{
   **/
  #define CLOCK_HSI           (16000000U)             /* frequency of internal oscillator */
  #define CLOCK_CORECLOCK     (32000000U)             /* targeted core clock frequency */
  /* configuration of PLL prescaler and multiply values */
  /* CORECLOCK := HSI / CLOCK_PLL_DIV * CLOCK_PLL_MUL */
  #define CLOCK_PLL_DIV       RCC_CFGR_PLLDIV2
  #define CLOCK_PLL_MUL       RCC_CFGR_PLLMUL4
  /* configuration of peripheral bus clock prescalers */
  #define CLOCK_AHB_DIV       RCC_CFGR_HPRE_DIV1      /* AHB clock -> 32MHz */
  #define CLOCK_APB2_DIV      RCC_CFGR_PPRE2_DIV1     /* APB2 clock -> 32MHz */
  #define CLOCK_APB1_DIV      RCC_CFGR_PPRE1_DIV1     /* APB1 clock -> 32MHz */
  /* configuration of flash access cycles */
  #define CLOCK_FLASH_LATENCY FLASH_ACR_LATENCY
  
  /* bus clocks for simplified peripheral initialization, UPDATE MANUALLY! */
  #define CLOCK_AHB           (CLOCK_CORECLOCK / 1)
  #define CLOCK_APB2          (CLOCK_CORECLOCK / 1)
  #define CLOCK_APB1          (CLOCK_CORECLOCK / 1)
  /** @} */
  
  /**
   * @brief   DAC configuration
   * @{
   */
  #define DAC_NUMOF           (0)
  /** @} */
  
  /**
   * @brief Timer configuration
   * @{
   */
  static const timer_conf_t timer_config[] = {
      {
          .dev      = TIM5,
          .max      = 0xffffffff,
          .rcc_mask = RCC_APB1ENR_TIM5EN,
          .bus      = APB1,
          .irqn     = TIM5_IRQn
      }
  };
  
  #define TIMER_0_ISR         (isr_tim5)
  
  #define TIMER_NUMOF         (sizeof(timer_config) / sizeof(timer_config[0]))
  /** @} */
  
  /**
   * @name Real time counter configuration
   * @{
   */
  #define RTC_NUMOF           (1U)
  
  /**
   * @brief UART configuration
   */
  #define UART_NUMOF          (1U)
  #define UART_0_EN           1
  #define UART_IRQ_PRIO       1
  
  /* UART 0 device configuration */
  #define UART_0_DEV          USART2
  #define UART_0_CLKEN()      (periph_clk_en(APB1, RCC_APB1ENR_USART2EN))
  #define UART_0_CLK          (CLOCK_CORECLOCK)   /* UART clock runs with 32MHz (F_CPU / 1) */
  #define UART_0_IRQ          USART2_IRQn
  #define UART_0_ISR          isr_usart2
  #define UART_0_BUS_FREQ     32000000
  /* UART 0 pin configuration */
  #define UART_0_RX_PIN       GPIO_PIN(PORT_A, 3)
  #define UART_0_TX_PIN       GPIO_PIN(PORT_A, 2)
  #define UART_0_AF           GPIO_AF7
  
  /**
   * @brief SPI configuration
   * @{
   */
  #define SPI_NUMOF           (1U)
  #define SPI_0_EN            1
  
  /* SPI 0 device configuration */
  #define SPI_0_DEV           SPI1
  #define SPI_0_CLKEN()       (periph_clk_en(APB2, RCC_APB2ENR_SPI1EN))
  #define SPI_0_CLKDIS()      (periph_clk_dis(APB2, RCC_APB2ENR_SPI1EN))
  #define SPI_0_IRQ           SPI1_IRQn
  #define SPI_0_ISR           isr_spi1
  /* SPI 0 pin configuration */
  #define SPI_0_PORT_CLKEN()  (periph_clk_en(AHB, RCC_AHBENR_GPIOAEN))
  #define SPI_0_PORT          GPIOA
  #define SPI_0_PIN_SCK       5
  #define SPI_0_PIN_MOSI      7
  #define SPI_0_PIN_MISO      6
  #define SPI_0_PIN_AF        5
  /** @} */
  
  /**
   * @name I2C configuration
    * @{
   */
  #define I2C_0_EN            1
  #define I2C_1_EN            1
  #define I2C_NUMOF           (I2C_0_EN + I2C_1_EN)
  #define I2C_IRQ_PRIO        1
  #define I2C_APBCLK          (36000000U)
  
  /* I2C 0 device configuration */
  #define I2C_0_EVT_ISR       isr_i2c1_ev
  #define I2C_0_ERR_ISR       isr_i2c1_er
  
  /* I2C 1 device configuration */
  #define I2C_1_EVT_ISR       isr_i2c2_ev
  #define I2C_1_ERR_ISR       isr_i2c2_er
  
  static const i2c_conf_t i2c_config[] = {
      /* device, port, scl-, sda-pin-number, I2C-AF, ER-IRQn, EV-IRQn */
      {I2C1, GPIO_PIN(PORT_B,  8), GPIO_PIN(PORT_B,  9), GPIO_OD_PU,
       GPIO_AF4, I2C1_ER_IRQn, I2C1_EV_IRQn},
      {I2C2, GPIO_PIN(PORT_B, 10), GPIO_PIN(PORT_B, 11), GPIO_OD_PU,
       GPIO_AF4, I2C2_ER_IRQn, I2C2_EV_IRQn},
  };
  
  /** @} */
  
  #ifdef __cplusplus
  }
  #endif
  
  #endif /* PERIPH_CONF_H_ */
  /** @} */