mdma_example.c File Reference

#include "intc.h"
#include "power_clocks_lib.h"
#include "gpio.h"
#include "usart.h"
#include "mdma.h"
#include "board.h"
#include "sdramc.h"
#include "flashc_buffer.h"
#include "cycle_counter.h"
#include "print_funcs.h"

Macros
#define	BUFFER_SIZE   1024
	Buffer Size. More...
#define	BURST_MODE   MDMA_SINGLE_TRANSFERT_MODE
	Burst Mode : Single. More...
#define	CHANNEL_NBR   0
	Number of MDMA channel used. More...
#define	FCPU_HZ   48000000
	CPU Clock at 48MHz. More...
#define	FPBA_HZ   24000000
	PBA Clock at 24MHz. More...
#define	FPBB_HZ   48000000
	PBB Clock at 48MHz. More...
#define	TRANSFERT_SIZE   MDMA_TRANSFERT_SIZE_WORD
	Transfer Size: Word. More...
Configuration to use for the example
#define	EXAMPLE_MDMA_USART   (&AVR32_USART2)
#define	EXAMPLE_MDMA_USART_RX_PIN   AVR32_USART2_RXD_0_1_PIN
#define	EXAMPLE_MDMA_USART_RX_FUNCTION   AVR32_USART2_RXD_0_1_FUNCTION
#define	EXAMPLE_MDMA_USART_TX_PIN   AVR32_USART2_TXD_0_1_PIN
#define	EXAMPLE_MDMA_USART_TX_FUNCTION   AVR32_USART2_TXD_0_1_FUNCTION
#define	EXAMPLE_MDMA_LED_READ   LED1
#define	EXAMPLE_MDMA_LED_ERRORS   (LED0 | LED1 | LED2 | LED3)
#define	EXAMPLE_MDMA_LED_OK   (LED0 | LED1 | LED2 | LED3)

Functions
void	init_usart (void)
int	main (void)
	Main function. More...
void	mdma_init_buffer_descriptor (void)
	Initialize the MDMA buffer descriptor. More...
static void	mdma_int_handler (void)
	Interrupt for End of MDMA Transfer. More...

Variables
volatile avr32_mdma_t *	mdma = &AVR32_MDMA
mdma_descriptor_t	mdma_buf_desc [5]
U32	sram_buffer [BUFFER_SIZE]

#define BUFFER_SIZE   1024

Buffer Size.

Referenced by mdma_init_buffer_descriptor().

#define BURST_MODE   MDMA_SINGLE_TRANSFERT_MODE

Burst Mode : Single.

Referenced by mdma_init_buffer_descriptor().

#define CHANNEL_NBR   0

Number of MDMA channel used.

Referenced by main().

#define EXAMPLE_MDMA_LED_ERRORS   (LED0 | LED1 | LED2 | LED3)

Referenced by main().

#define EXAMPLE_MDMA_LED_OK   (LED0 | LED1 | LED2 | LED3)

Referenced by main().

#define EXAMPLE_MDMA_LED_READ   LED1

Referenced by main().

#define EXAMPLE_MDMA_USART   (&AVR32_USART2)

Referenced by init_usart().

#define EXAMPLE_MDMA_USART_RX_FUNCTION   AVR32_USART2_RXD_0_1_FUNCTION

Referenced by init_usart().

#define EXAMPLE_MDMA_USART_RX_PIN   AVR32_USART2_RXD_0_1_PIN

Referenced by init_usart().

#define EXAMPLE_MDMA_USART_TX_FUNCTION   AVR32_USART2_TXD_0_1_FUNCTION

Referenced by init_usart().

#define EXAMPLE_MDMA_USART_TX_PIN   AVR32_USART2_TXD_0_1_PIN

Referenced by init_usart().

#define FCPU_HZ   48000000

CPU Clock at 48MHz.

#define FPBA_HZ   24000000

PBA Clock at 24MHz.

Referenced by init_usart().

#define FPBB_HZ   48000000

PBB Clock at 48MHz.

Referenced by main().

#define TRANSFERT_SIZE   MDMA_TRANSFERT_SIZE_WORD

Transfer Size: Word.

Referenced by mdma_init_buffer_descriptor().

void init_usart

(

void

)

References usart_options_t::baudrate, EXAMPLE_MDMA_USART, EXAMPLE_MDMA_USART_RX_FUNCTION, EXAMPLE_MDMA_USART_RX_PIN, EXAMPLE_MDMA_USART_TX_FUNCTION, EXAMPLE_MDMA_USART_TX_PIN, FPBA_HZ, gpio_enable_module(), print_dbg(), USART_1_STOPBIT, USART_GPIO_MAP, usart_init_rs232(), USART_NO_PARITY, USART_NORMAL_CHMODE, and USART_OPTIONS.

int main

(

void

)

Main function.

References mdma_interrupt_t::ch0c, CHANNEL_NBR, cpu_delay_ms(), Disable_global_interrupt, Enable_global_interrupt, EXAMPLE_MDMA_LED_ERRORS, EXAMPLE_MDMA_LED_OK, EXAMPLE_MDMA_LED_READ, flashc_data, FLASHC_DATA_BUFFER_SIZE, FPBB_HZ, gpio_set_gpio_pin(), i, init_sys_clocks(), init_usart(), INTC_init_interrupts(), INTC_register_interrupt(), mdma, mdma_configure_interrupts(), mdma_descriptor_mode_xfert_init(), MDMA_FIXED_PRIORITY_MODE, mdma_init_buffer_descriptor(), mdma_int_handler(), mdma_start_descriptor_xfert(), print_dbg(), print_dbg_ulong(), SDRAM, and sdramc_init().

void mdma_init_buffer_descriptor

(

void

)

Initialize the MDMA buffer descriptor.

References BUFFER_SIZE, BURST_MODE, mdma_opt_t::burst_size, mdma_descriptor_t::ccr, mdma_opt_t::count, mdma_descriptor_t::dest, flashc_data, mdma_opt_t::L, mdma_opt_t::size, sram_buffer, mdma_descriptor_t::src, mdma_opt_t::tc_ienable, TRANSFERT_SIZE, and mdma_opt_t::V.

Referenced by main().

static void mdma_int_handler ( void  )

static

Interrupt for End of MDMA Transfer.

References Disable_global_interrupt, Enable_global_interrupt, mdma, and status.

Referenced by main().

volatile avr32_mdma_t* mdma = &AVR32_MDMA

Referenced by main(), and mdma_int_handler().

mdma_descriptor_t mdma_buf_desc[5]

U32 sram_buffer[BUFFER_SIZE]

Referenced by mdma_init_buffer_descriptor().