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Altera_Forum's avatar
Altera_Forum
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15 years ago

URGENT: Flash memory

Hello. I am doing a project regarding DMA. However I need to use flash memory on the DE2 Board. I have done the instantiation for the flash but I cannot use because it always return zero for the func...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
15 years ago

Thanks for the reply.

This is part of the code from system.h

--- Quote Start ---

/*

* ext_flash configuration

*

*/

# define EXT_FLASH_NAME "/dev/ext_flash"# define EXT_FLASH_TYPE "altera_avalon_cfi_flash"# define EXT_FLASH_BASE 0x01100000# define EXT_FLASH_SPAN 1048576# define EXT_FLASH_SETUP_VALUE 45# define EXT_FLASH_WAIT_VALUE 160# define EXT_FLASH_HOLD_VALUE 35# define EXT_FLASH_TIMING_UNITS "ns"# define EXT_FLASH_UNIT_MULTIPLIER 1# define EXT_FLASH_SIZE 1048576# define ALT_MODULE_CLASS_ext_flash altera_avalon_cfi_flash

--- Quote End ---

1. Yes, I tried before using the Control Panel from the CD.

2. How to manually test the flash? Sorry cause I am starting from zero, so I am very new in this.

3. I tried that before but I dont know how to place breakpoint then step into it, so I dont have any luck in this.

Please assist. Thanks.