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135 lines
3.3 KiB
C
135 lines
3.3 KiB
C
/*
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* Code generated from Atmel Start.
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*
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* This file will be overwritten when reconfiguring your Atmel Start project.
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* Please copy examples or other code you want to keep to a separate file
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* to avoid losing it when reconfiguring.
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*/
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#include "driver_init.h"
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#include <peripheral_clk_config.h>
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#include <utils.h>
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#include <hal_init.h>
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/*! The buffer size for USART */
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#define USART_0_BUFFER_SIZE 16
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struct usart_async_descriptor USART_0;
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struct timer_descriptor TIMER_0;
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static uint8_t USART_0_buffer[USART_0_BUFFER_SIZE];
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struct i2c_m_sync_desc I2C_0;
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void EXTERNAL_IRQ_0_init(void)
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{
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hri_gclk_write_PCHCTRL_reg(GCLK, EIC_GCLK_ID, CONF_GCLK_EIC_SRC | (1 << GCLK_PCHCTRL_CHEN_Pos));
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hri_mclk_set_APBAMASK_EIC_bit(MCLK);
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ext_irq_init();
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}
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/**
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* \brief USART Clock initialization function
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*
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* Enables register interface and peripheral clock
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*/
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void USART_0_CLOCK_init()
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{
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hri_gclk_write_PCHCTRL_reg(GCLK, SERCOM0_GCLK_ID_CORE, CONF_GCLK_SERCOM0_CORE_SRC | (1 << GCLK_PCHCTRL_CHEN_Pos));
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hri_gclk_write_PCHCTRL_reg(GCLK, SERCOM0_GCLK_ID_SLOW, CONF_GCLK_SERCOM0_SLOW_SRC | (1 << GCLK_PCHCTRL_CHEN_Pos));
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hri_mclk_set_APBAMASK_SERCOM0_bit(MCLK);
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}
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/**
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* \brief USART pinmux initialization function
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*
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* Set each required pin to USART functionality
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*/
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void USART_0_PORT_init()
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{
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gpio_set_pin_function(PA04, PINMUX_PA04D_SERCOM0_PAD0);
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gpio_set_pin_function(PA05, PINMUX_PA05D_SERCOM0_PAD1);
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}
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/**
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* \brief USART initialization function
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*
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* Enables USART peripheral, clocks and initializes USART driver
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*/
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void USART_0_init(void)
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{
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USART_0_CLOCK_init();
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usart_async_init(&USART_0, SERCOM0, USART_0_buffer, USART_0_BUFFER_SIZE, (void *)NULL);
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USART_0_PORT_init();
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}
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void I2C_0_PORT_init(void)
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{
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gpio_set_pin_pull_mode(PA22,
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// <y> Pull configuration
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// <id> pad_pull_config
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// <GPIO_PULL_OFF"> Off
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// <GPIO_PULL_UP"> Pull-up
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// <GPIO_PULL_DOWN"> Pull-down
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GPIO_PULL_OFF);
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gpio_set_pin_function(PA22, PINMUX_PA22C_SERCOM3_PAD0);
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gpio_set_pin_pull_mode(PA23,
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// <y> Pull configuration
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// <id> pad_pull_config
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// <GPIO_PULL_OFF"> Off
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// <GPIO_PULL_UP"> Pull-up
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// <GPIO_PULL_DOWN"> Pull-down
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GPIO_PULL_OFF);
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gpio_set_pin_function(PA23, PINMUX_PA23C_SERCOM3_PAD1);
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}
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void I2C_0_CLOCK_init(void)
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{
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hri_gclk_write_PCHCTRL_reg(GCLK, SERCOM3_GCLK_ID_CORE, CONF_GCLK_SERCOM3_CORE_SRC | (1 << GCLK_PCHCTRL_CHEN_Pos));
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hri_gclk_write_PCHCTRL_reg(GCLK, SERCOM3_GCLK_ID_SLOW, CONF_GCLK_SERCOM3_SLOW_SRC | (1 << GCLK_PCHCTRL_CHEN_Pos));
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hri_mclk_set_APBBMASK_SERCOM3_bit(MCLK);
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}
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void I2C_0_init(void)
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{
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I2C_0_CLOCK_init();
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i2c_m_sync_init(&I2C_0, SERCOM3);
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I2C_0_PORT_init();
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}
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/**
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* \brief Timer initialization function
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*
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* Enables Timer peripheral, clocks and initializes Timer driver
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*/
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static void TIMER_0_init(void)
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{
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hri_mclk_set_APBAMASK_TC0_bit(MCLK);
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hri_gclk_write_PCHCTRL_reg(GCLK, TC0_GCLK_ID, CONF_GCLK_TC0_SRC | (1 << GCLK_PCHCTRL_CHEN_Pos));
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timer_init(&TIMER_0, TC0, _tc_get_timer());
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}
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void system_init(void)
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{
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init_mcu();
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EXTERNAL_IRQ_0_init();
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USART_0_init();
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I2C_0_init();
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TIMER_0_init();
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}
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