ast_example2.c File Reference

AST example driver for AVR32 UC3.

Copyright (c) 2009-2018 Microchip Technology Inc. and its subsidiaries.

#include <avr32/io.h>
#include <stdint.h>
#include "intc.h"
#include "board.h"
#include "compiler.h"
#include "ast.h"
#include "usart.h"
#include "gpio.h"
#include "power_clocks_lib.h"

Macros
USART Settings
#define	EXAMPLE_USART   (&AVR32_USART2)
#define	EXAMPLE_USART_RX_PIN   AVR32_USART2_RXD_0_1_PIN
#define	EXAMPLE_USART_RX_FUNCTION   AVR32_USART2_RXD_0_1_FUNCTION
#define	EXAMPLE_USART_TX_PIN   AVR32_USART2_TXD_0_1_PIN
#define	EXAMPLE_USART_TX_FUNCTION   AVR32_USART2_TXD_0_1_FUNCTION
#define	EXAMPLE_USART_CLOCK_MASK   AVR32_USART2_CLK_PBA
#define	FPBA   FOSC0
#define	EXAMPLE_AST_OSC   AST_OSC_32KHZ
#define	EXAMPLE_AST_PRESCALER   AST_PSEL_32KHZ_1HZ
#define	EXAMPLE_USART   (&AVR32_USART3)
#define	EXAMPLE_USART_RX_PIN   AVR32_USART3_RXD_0_0_PIN
#define	EXAMPLE_USART_RX_FUNCTION   AVR32_USART3_RXD_0_0_FUNCTION
#define	EXAMPLE_USART_TX_PIN   AVR32_USART3_TXD_0_0_PIN
#define	EXAMPLE_USART_TX_FUNCTION   AVR32_USART3_TXD_0_0_FUNCTION
#define	EXAMPLE_USART_CLOCK_MASK   AVR32_USART3_CLK_PBA
#define	EXAMPLE_TARGET_DFLL_FREQ_HZ   96000000 /* DFLL target frequency Hz */
#define	EXAMPLE_TARGET_MCUCLK_FREQ_HZ   12000000 /* MCU clock target freq Hz */
#define	EXAMPLE_TARGET_PBACLK_FREQ_HZ   12000000 /* PBA clock target freq Hz */
#define	FPBA   EXAMPLE_TARGET_PBACLK_FREQ_HZ
#define	EXAMPLE_AST_OSC   AST_OSC_32KHZ
#define	EXAMPLE_AST_PRESCALER   AST_PSEL_32KHZ_1HZ
#define	EXAMPLE_USART   (&AVR32_USART1)
#define	EXAMPLE_USART_RX_PIN   AVR32_USART1_RXD_0_0_PIN
#define	EXAMPLE_USART_RX_FUNCTION   AVR32_USART1_RXD_0_0_FUNCTION
#define	EXAMPLE_USART_TX_PIN   AVR32_USART1_TXD_0_0_PIN
#define	EXAMPLE_USART_TX_FUNCTION   AVR32_USART1_TXD_0_0_FUNCTION
#define	EXAMPLE_USART_CLOCK_MASK   AVR32_USART1_CLK_PBA
#define	FPBA   FOSC0
#define	EXAMPLE_AST_OSC   AST_OSC_32KHZ
#define	EXAMPLE_AST_PRESCALER   AST_PSEL_32KHZ_1HZ

Functions
int	main (void)
	main function : do init and loop (poll if configured so) More...
static char *	print_i (char *str, int n)
	print_i function : convert the given number to an ASCII decimal representation. More...

Variables
Parameters to pcl_configure_clocks().
static scif_gclk_opt_t	gc_dfllif_ref_opt = { SCIF_GCCTRL_SLOWCLOCK, 0, false }
static pcl_freq_param_t	pcl_dfll_freq_param

#define EXAMPLE_AST_OSC   AST_OSC_32KHZ

#define EXAMPLE_AST_OSC   AST_OSC_32KHZ

#define EXAMPLE_AST_OSC   AST_OSC_32KHZ

#define EXAMPLE_AST_PRESCALER   AST_PSEL_32KHZ_1HZ

#define EXAMPLE_AST_PRESCALER   AST_PSEL_32KHZ_1HZ

#define EXAMPLE_AST_PRESCALER   AST_PSEL_32KHZ_1HZ

#define EXAMPLE_TARGET_DFLL_FREQ_HZ   96000000 /* DFLL target frequency Hz */

#define EXAMPLE_TARGET_MCUCLK_FREQ_HZ   12000000 /* MCU clock target freq Hz */

#define EXAMPLE_TARGET_PBACLK_FREQ_HZ   12000000 /* PBA clock target freq Hz */

#define EXAMPLE_USART   (&AVR32_USART2)

#define EXAMPLE_USART   (&AVR32_USART3)

#define EXAMPLE_USART   (&AVR32_USART1)

#define EXAMPLE_USART_CLOCK_MASK   AVR32_USART2_CLK_PBA

#define EXAMPLE_USART_CLOCK_MASK   AVR32_USART3_CLK_PBA

#define EXAMPLE_USART_CLOCK_MASK   AVR32_USART1_CLK_PBA

#define EXAMPLE_USART_RX_FUNCTION   AVR32_USART2_RXD_0_1_FUNCTION

#define EXAMPLE_USART_RX_FUNCTION   AVR32_USART3_RXD_0_0_FUNCTION

#define EXAMPLE_USART_RX_FUNCTION   AVR32_USART1_RXD_0_0_FUNCTION

#define EXAMPLE_USART_RX_PIN   AVR32_USART2_RXD_0_1_PIN

#define EXAMPLE_USART_RX_PIN   AVR32_USART3_RXD_0_0_PIN

#define EXAMPLE_USART_RX_PIN   AVR32_USART1_RXD_0_0_PIN

#define EXAMPLE_USART_TX_FUNCTION   AVR32_USART2_TXD_0_1_FUNCTION

#define EXAMPLE_USART_TX_FUNCTION   AVR32_USART3_TXD_0_0_FUNCTION

#define EXAMPLE_USART_TX_FUNCTION   AVR32_USART1_TXD_0_0_FUNCTION

#define EXAMPLE_USART_TX_PIN   AVR32_USART2_TXD_0_1_PIN

#define EXAMPLE_USART_TX_PIN   AVR32_USART3_TXD_0_0_PIN

#define EXAMPLE_USART_TX_PIN   AVR32_USART1_TXD_0_0_PIN

#define FPBA   FOSC0

#define FPBA   EXAMPLE_TARGET_PBACLK_FREQ_HZ

#define FPBA   FOSC0

int main

(

void

)

main function : do init and loop (poll if configured so)

References ast_clear_alarm_status_flag(), ast_disable_alarm0(), ast_enable(), ast_enable_alarm0(), ast_enable_alarm_async_wakeup(), ast_get_counter_value(), ast_init_counter(), AST_OSC_32KHZ, AST_PSEL_32KHZ_1HZ, ast_set_alarm0_value(), usart_options_t::baudrate, EXAMPLE_USART, EXAMPLE_USART_CLOCK_MASK, EXAMPLE_USART_RX_FUNCTION, EXAMPLE_USART_RX_PIN, EXAMPLE_USART_TX_FUNCTION, EXAMPLE_USART_TX_PIN, FPBA, gpio_enable_module(), gpio_tgl_gpio_pin(), scif_osc32_opt_t::mode, opt, pcl_configure_clocks(), pcl_dfll_freq_param, pcl_disable_module, pcl_enable_module, PCL_OSC0, pcl_switch_to_osc(), print_i(), SCIF_OSC_MODE_2PIN_CRYSTAL, SCIF_OSC_MODE_2PIN_CRYSTAL_HICUR, scif_start_osc32(), SLEEP, scif_osc32_opt_t::startup, temp, USART_1_STOPBIT, USART_GPIO_MAP, usart_init_rs232(), USART_NO_PARITY, USART_OPTIONS, usart_tx_empty(), and usart_write_line().

static char* print_i ( char *  str, int  n  )

static

print_i function : convert the given number to an ASCII decimal representation.

References i.

Referenced by main().

scif_gclk_opt_t gc_dfllif_ref_opt = { SCIF_GCCTRL_SLOWCLOCK, 0, false }

static

pcl_freq_param_t pcl_dfll_freq_param

static

Initial value:

= {
    .main_clk_src = PCL_MC_DFLL0,
    .cpu_f        = EXAMPLE_TARGET_MCUCLK_FREQ_HZ,
    .pba_f        = EXAMPLE_TARGET_PBACLK_FREQ_HZ,
    .pbb_f        = EXAMPLE_TARGET_PBACLK_FREQ_HZ,
    .dfll_f       = EXAMPLE_TARGET_DFLL_FREQ_HZ,
    .pextra_params = &gc_dfllif_ref_opt
}

Referenced by main().