fsaccess_example.c File Reference

#include <string.h>
#include "compiler.h"
#include "preprocessor.h"
#include "board.h"
#include "print_funcs.h"
#include "power_clocks_lib.h"
#include "gpio.h"
#include "usart.h"
#include "spi.h"
#include "conf_at45dbx.h"
#include "fsaccess.h"

Macros
#define	ABORT_CHAR   CTRL_C
#define	AT45DBX_ENABLE_NPCS_PIN(NPCS, unused)   {AT45DBX_SPI_NPCS##NPCS##_PIN, AT45DBX_SPI_NPCS##NPCS##_FUNCTION},
#define	BKSPACE_CHAR   '\b'
#define	CR   '\r'
#define	CRLF   "\r\n"
#define	CTRL_C   0x03
#define	CTRL_Q   0x11
#define	LF   '\n'
#define	MSG_FILENAME   "Enter the filename : "
#define	MSG_MODE   "\r\nWhat do you want to do ?\r\n\t1 - Read file\r\n\t2 - Concatenate a file to an existing one\r\n\t3 - Copy the content of a file to a new one\r\nenter your choice : "
#define	MSG_WELCOME   "\r\n ---------- Welcome to FSACCESS Example ---------- \r\n"
#define	NB_SECTOR_TO_SEND   4
#define	QUIT_APPEND   CTRL_Q
#define	TEST_FAIL   "\t[FAIL]\r\n"
#define	TEST_SUCCESS   "\t[PASS]\r\n"

Functions
static void	at45dbx_resources_init (void)
	Initialize dataflash memory AT45DBX resources: GPIO, SPI and AT45DBX. More...
void	fsaccess_example_get_filename (char *buf)
	Wait for user to enter a filename. More...
int	fsaccess_example_get_mode (void)
	Wait for user to select the mode he wants to test. More...
int	fsaccess_example_read (char *path)
	Read a file and display it to USART. More...
int	fsaccess_example_write (char *source, char *destination, int flags)
	Copy a file to another one. More...
int	main (void)
	Main function, execution starts here. RS232 is used to input/output information. The example lets you issue the following commands on RS232 using POSIX interfaces (open, read, write, close): More...

Parameters to pcl_configure_clocks().
#define	EXAMPLE_TARGET_PBACLK_FREQ_HZ   FOSC0
#define	EXAMPLE_TARGET_DFLL_FREQ_HZ   96000000
#define	EXAMPLE_TARGET_MCUCLK_FREQ_HZ   12000000
#define	EXAMPLE_TARGET_PBACLK_FREQ_HZ   12000000
static scif_gclk_opt_t	gc_dfllif_ref_opt = { SCIF_GCCTRL_SLOWCLOCK, 0, false }
static pcl_freq_param_t	pcl_dfll_freq_param

#define ABORT_CHAR   CTRL_C

Referenced by fsaccess_example_get_filename().

#define AT45DBX_ENABLE_NPCS_PIN	(		NPCS,
			unused
	)		{AT45DBX_SPI_NPCS##NPCS##_PIN, AT45DBX_SPI_NPCS##NPCS##_FUNCTION},

Referenced by at45dbx_resources_init().

#define BKSPACE_CHAR   '\b'

Referenced by fsaccess_example_get_filename().

#define CR   '\r'

Referenced by fsaccess_example_get_filename().

#define CRLF   "\r\n"

Referenced by fsaccess_example_get_filename(), fsaccess_example_get_mode(), and fsaccess_example_read().

#define CTRL_C   0x03

#define CTRL_Q   0x11

#define EXAMPLE_TARGET_DFLL_FREQ_HZ   96000000

#define EXAMPLE_TARGET_MCUCLK_FREQ_HZ   12000000

#define EXAMPLE_TARGET_PBACLK_FREQ_HZ   FOSC0

Referenced by at45dbx_resources_init(), and main().

#define EXAMPLE_TARGET_PBACLK_FREQ_HZ   12000000

#define LF   '\n'

#define MSG_FILENAME   "Enter the filename : "

Referenced by fsaccess_example_get_filename().

#define MSG_MODE   "\r\nWhat do you want to do ?\r\n\t1 - Read file\r\n\t2 - Concatenate a file to an existing one\r\n\t3 - Copy the content of a file to a new one\r\nenter your choice : "

Referenced by fsaccess_example_get_mode().

#define MSG_WELCOME   "\r\n ---------- Welcome to FSACCESS Example ---------- \r\n"

Referenced by main().

#define NB_SECTOR_TO_SEND   4

Referenced by fsaccess_example_read(), and fsaccess_example_write().

#define QUIT_APPEND   CTRL_Q

#define TEST_FAIL   "\t[FAIL]\r\n"

#define TEST_SUCCESS   "\t[PASS]\r\n"

static void at45dbx_resources_init ( void  )

static

Initialize dataflash memory AT45DBX resources: GPIO, SPI and AT45DBX.

References AT45DBX_ENABLE_NPCS_PIN, at45dbx_init(), AT45DBX_MEM_CNT, AT45DBX_SPI, AT45DBX_SPI_BITS, AT45DBX_SPI_FIRST_NPCS, AT45DBX_SPI_MASTER_SPEED, AT45DBX_SPI_MISO_FUNCTION, AT45DBX_SPI_MISO_PIN, AT45DBX_SPI_MOSI_FUNCTION, AT45DBX_SPI_MOSI_PIN, AT45DBX_SPI_SCK_FUNCTION, AT45DBX_SPI_SCK_PIN, EXAMPLE_TARGET_PBACLK_FREQ_HZ, gpio_enable_module(), MREPEAT, spi_options_t::reg, spi_enable(), spi_initMaster(), and spi_selectionMode().

Referenced by main().

void fsaccess_example_get_filename

(

char *

buf

)

Wait for user to enter a filename.

References ABORT_CHAR, BKSPACE_CHAR, CR, CRLF, DBG_USART, MSG_FILENAME, print_dbg(), print_dbg_char(), usart_read_char(), usart_reset_status(), and USART_SUCCESS.

Referenced by main().

int fsaccess_example_get_mode

(

void

)

Wait for user to select the mode he wants to test.

References CRLF, DBG_USART, MSG_MODE, print_dbg(), print_dbg_char(), usart_read_char(), usart_reset_status(), and USART_SUCCESS.

Referenced by main().

int fsaccess_example_read

(

char *

path

)

Read a file and display it to USART.

References close(), CRLF, FS_SIZE_OF_SECTOR, fsaccess_file_get_size(), NB_SECTOR_TO_SEND, O_RDONLY, open(), print_dbg(), print_dbg_ulong(), and read().

Referenced by main().

int fsaccess_example_write	(	char *	source,
		char *	destination,
		int	flags
	)

Copy a file to another one.

References close(), FS_SIZE_OF_SECTOR, fsaccess_file_get_size(), NB_SECTOR_TO_SEND, O_RDONLY, open(), print_dbg(), print_dbg_ulong(), read(), and write().

Referenced by main().

int main

(

void

)

Main function, execution starts here. RS232 is used to input/output information. The example lets you issue the following commands on RS232 using POSIX interfaces (open, read, write, close):

• read a file from the memory files system;
• concatenate a file to an existing one;
• copy the content of a file to a new one.

Connect USART_1 to your serial port via a standard RS-232 D-SUB9 cable Set the following settings in your terminal of choice: 57600 8N1

References at45dbx_mem_check(), at45dbx_resources_init(), b_fsaccess_init(), EXAMPLE_TARGET_PBACLK_FREQ_HZ, FOSC0, fsaccess_example_get_filename(), fsaccess_example_get_mode(), fsaccess_example_read(), fsaccess_example_write(), init_dbg_rs232(), MSG_WELCOME, O_APPEND, O_CREAT, OSC0_STARTUP, pcl_configure_clocks(), pcl_dfll_freq_param, PCL_OSC0, pcl_switch_to_osc(), and print_dbg().

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().