sdram_usart_test.c File Reference

#include "sdram.h"
#include <avr32/io.h>
#include "mt481c2m32b2tg.h"

Include dependency graph for sdram_usart_test.c:

Go to the source code of this file.

Defines
#define	AVR32_USART1_RXD_0_FUNCTION   0
#define	AVR32_USART1_RXD_0_PIN   17
#define	AVR32_USART1_TXD_0_FUNCTION   0
#define	AVR32_USART1_TXD_0_PIN   18
#define	CPU_HZ   20000000
#define	FAILURE   -1
#define	STK1000_SDRAM_BASE   0xB0000000
#define	SUCCESS   0
#define	USART   0
Functions
int	main (void)

---

Define Documentation

#define AVR32_USART1_RXD_0_FUNCTION   0

Definition at line 23 of file sdram_usart_test.c.

#define AVR32_USART1_RXD_0_PIN   17

Definition at line 22 of file sdram_usart_test.c.

#define AVR32_USART1_TXD_0_FUNCTION   0

Definition at line 25 of file sdram_usart_test.c.

#define AVR32_USART1_TXD_0_PIN   18

Definition at line 24 of file sdram_usart_test.c.

#define CPU_HZ   20000000

Definition at line 29 of file sdram_usart_test.c.

#define FAILURE   -1

Definition at line 12 of file sdram_usart_test.c.

Referenced by main().

#define STK1000_SDRAM_BASE   0xB0000000

Definition at line 28 of file sdram_usart_test.c.

#define SUCCESS   0

Definition at line 11 of file sdram_usart_test.c.

Referenced by main().

#define USART   0

Definition at line 1 of file sdram_usart_test.c.

Referenced by main().

---

Function Documentation

int main

(

void

)

Definition at line 31 of file sdram_usart_test.c.

References sdram_info::banks, sdram_info::cas, sdram_info::cols, FAILURE, mt481c2m32b2tg_banks, mt481c2m32b2tg_cas, mt481c2m32b2tg_cols, mt481c2m32b2tg_init(), mt481c2m32b2tg_rows, mt481c2m32b2tg_tras, mt481c2m32b2tg_trc, mt481c2m32b2tg_trcd, mt481c2m32b2tg_trp, mt481c2m32b2tg_twr, mt481c2m32b2tg_txsr, sdram_info::physical_address, sdram_info::rows, sdramc_init(), STK1000_SDRAM_BASE, SUCCESS, sdram_info::tras, sdram_info::trc, sdram_info::trcd, sdram_info::trp, sdram_info::twr, sdram_info::txsr, and USART.

{
  static sdram_info *info;
  unsigned long sdram_size, tmp, i;
  int noErrors=0;
  volatile unsigned long *sdram = (void *) STK1000_SDRAM_BASE;

  info->physical_address = STK1000_SDRAM_BASE;
  info->cols = mt481c2m32b2tg_cols;
  info->rows = mt481c2m32b2tg_rows;
  info->banks = mt481c2m32b2tg_banks;
  info->cas = mt481c2m32b2tg_cas;
  info->twr = mt481c2m32b2tg_twr;
  info->trc = mt481c2m32b2tg_trc;
  info->trp = mt481c2m32b2tg_trp;
  info->trcd = mt481c2m32b2tg_trcd;
  info->tras = mt481c2m32b2tg_tras;
  info->txsr = mt481c2m32b2tg_txsr;

  /* Calculate sdram size */
  sdram_size = 1 << (info->rows + info->cols + info->banks + 2);

#if USART
  init_rs232();
#endif
  printf("\nEXTERNAL SDRAM TEST\n\n");
  sdramc_init(info);
  mt481c2m32b2tg_init(info);
  printf("Initialization complete\nTest starting...\n");
  printf("Filling memoryspace (0x%lx)\n", sdram_size);

  for (i = 0; i < sdram_size; i++){
    sdram[i] = i;
    tmp = sdram[i];
    if (tmp != i) {
    #if USART
      printf("SDRAM verifcation failed at 0x%lx", STK1000_SDRAM_BASE + i);
      printf(". Read 0x%lx instead of expected 0x%lx\n", tmp, i);
    #endif
      noErrors++;
    }
  }

  if(noErrors==0){
    printf("SDRAM test completed successfully\n");
    return SUCCESS;
  }else{
    printf("SDRAM test completed with %x errors", noErrors);
    return FAILURE;
  }
}

Here is the call graph for this function:

---