periph_conf.h File Reference

Peripheral specific definitions for the HiFive1b RISC-V board. More...

Detailed Description

Peripheral specific definitions for the HiFive1b RISC-V board.

Author

Ken Rabold

Alexandre Abadie alexa.nosp@m.ndre.nosp@m..abad.nosp@m.ie@i.nosp@m.nria..nosp@m.fr

Definition in file periph_conf.h.

#include "periph_cpu.h"

Include dependency graph for periph_conf.h:

Go to the source code of this file.

Core Clock configuration
#define	CONFIG_USE_CLOCK_HFXOSC_PLL   1 /* Use PLL clocked by HFXOSC by default */
#define	CONFIG_USE_CLOCK_HFXOSC   0
#define	CONFIG_USE_CLOCK_HFROSC_PLL   0
#define	CONFIG_USE_CLOCK_HFROSC   0
#define	CONFIG_CLOCK_PLL_R   (1) /* Divide input clock by 2, mandatory with HFXOSC */
#define	CONFIG_CLOCK_PLL_F   (39) /* Multiply REFR by 80, e.g 2 * (39 + 1) */
#define	CONFIG_CLOCK_PLL_Q   (1) /* Divide VCO by 2, e.g 2^1 */
#define	CLOCK_PLL_INPUT_CLOCK   MHZ(16)
#define	CLOCK_PLL_REFR   (CLOCK_PLL_INPUT_CLOCK / (CONFIG_CLOCK_PLL_R + 1))
#define	CLOCK_PLL_VCO   (CLOCK_PLL_REFR * (2 * (CONFIG_CLOCK_PLL_F + 1)))
#define	CLOCK_PLL_OUT   (CLOCK_PLL_VCO / (1 << CONFIG_CLOCK_PLL_Q))
#define	CLOCK_CORECLOCK   (CLOCK_PLL_OUT) /* 320000000Hz with the values used above */
#define	CONFIG_CLOCK_DESIRED_FREQUENCY   MHZ(320)
#define	CONFIG_CLOCK_HFROSC_TRIM   (6) /* ~72000000Hz input freq */
#define	CONFIG_CLOCK_HFROSC_DIV   (1) /* Divide by 2 */

Timer configuration
#define	TIMER_NUMOF   (1)

UART configuration
#define	UART_NUMOF   ARRAY_SIZE(uart_config)
static const uart_conf_t	uart_config []

SPI device configuration
#define	SPI_NUMOF   ARRAY_SIZE(spi_config)
static const spi_conf_t	spi_config []

PWM configuration
#define	PWM_NUMOF   (3)

I2C configuration
#define	I2C_NUMOF   ARRAY_SIZE(i2c_config)
static const i2c_conf_t	i2c_config []

Variable Documentation

i2c_config

const i2c_conf_t i2c_config[]

static

Initial value:

= {
    {
        .addr   = I2C0_CTRL_ADDR,
        .scl    = GPIO_PIN(0, 13),
        .sda    = GPIO_PIN(0, 12),
        .speed  = I2C_SPEED_NORMAL,
     },
}

Definition at line 180 of file periph_conf.h.

spi_config

const spi_conf_t spi_config[]

static

Initial value:

= {
    {
        .addr       = SPI1_CTRL_ADDR,
        .mosi       = GPIO_PIN(0, 3), 
        .miso       = GPIO_PIN(0, 4), 
        .sclk       = GPIO_PIN(0, 5), 
    },
}

Definition at line 156 of file periph_conf.h.

uart_config

const uart_conf_t uart_config[]

static

Initial value:

= {
    {
        .addr       = UART0_CTRL_ADDR,
        .rx         = GPIO_PIN(0, 16),
        .tx         = GPIO_PIN(0, 17),
        .isr_num    = INT_UART0_BASE,
    },
    {
        .addr       = UART1_CTRL_ADDR,
        .rx         = GPIO_PIN(0, 18),
        .tx         = GPIO_PIN(0, 23),
        .isr_num    = INT_UART1_BASE,
    },
}

Definition at line 133 of file periph_conf.h.