Atmel Software Framework

sdramc.h File Reference
#include <avr32/io.h>
#include "board.h"

Macros

#define SDRAM   ((void *)AVR32_EBI_CS1_ADDRESS)
 Pointer to SDRAM. More...
 
#define SDRAM_BANK_BITS   2
 The number of bank bits for this SDRAM (1 or 2). More...
 
#define SDRAM_CAS   2
 The minimal column address select (READ) latency for this SDRAM (1 to 3 SDRAM cycles). More...
 
#define SDRAM_COL_BITS   9
 The number of column bits for this SDRAM (8 to 11). More...
 
#define SDRAM_INIT_AUTO_REFRESH_COUNT   2
 The minimal number of AUTO REFRESH commands required during initialization for this SDRAM. More...
 
#define SDRAM_ROW_BITS   13
 The number of row bits for this SDRAM (11 to 13). More...
 
#define SDRAM_SIZE
 SDRAM size. More...
 
#define SDRAM_STABLE_CLOCK_INIT_DELAY   100
 The minimal stable-clock initialization delay for this SDRAM. More...
 
#define SDRAM_TMRD   2
 The minimal mode register delay time for this SDRAM. More...
 
#define SDRAM_TR   7812
 The maximal refresh time for this SDRAM (0 to 4095 SDRAM cycles). More...
 
#define SDRAM_TRAS   37
 The minimal row address select time for this SDRAM (0 to 15 SDRAM cycles). More...
 
#define SDRAM_TRC   60
 The minimal row cycle time for this SDRAM (0 to 15 SDRAM cycles). More...
 
#define SDRAM_TRCD   15
 The minimal row to column delay time for this SDRAM (0 to 15 SDRAM cycles). More...
 
#define SDRAM_TRFC   66
 The minimal refresh cycle time for this SDRAM. More...
 
#define SDRAM_TRP   15
 The minimal row precharge time for this SDRAM (0 to 15 SDRAM cycles). More...
 
#define SDRAM_TWR   14
 The minimal write recovery time for this SDRAM (0 to 15 SDRAM cycles). More...
 
#define SDRAM_TXSR   67
 The minimal exit self refresh time for this SDRAM (0 to 15 SDRAM cycles). More...
 

Functions

void sdram_enter_self_refresh (void)
 Set the SDRAM in self refresh mode. The SELF REFRESH command can be used to retain data in the SDRAM, even if the rest of the system is powered down. When in the self refresh mode, the SDRAM retains data without external clocking. More...
 
void sdram_exit_self_refresh (void)
 Exit from the SDRAM self refresh mode, inhibits self refresh mode. More...
 
void sdramc_init (unsigned long hsb_hz)
 Initializes the AVR32 SDRAM Controller and the connected SDRAM(s). More...