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Altera_Forum's avatar
Altera_Forum
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21 years ago

help me about cfi

i am a beginner of this field. so many problems block me. i have a ep1s80 dev board and a ep1s25 dev board.but i can't program flash on these board. the preset of the cfi does't support...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

This means that the call to alt_flash_open_dev(EXT_FLASH_NAME) is failing.

This could be failing for a number of reasons:

If you have Use reduced device drivers selected for your system library then the CFI component is excluded. See section 4-23 of the Nios II Software Developers Handbook

If this is not the case I suggest you stick a break point in the function alt_flash_cfi_init in the altera_avalon_cfi_flash component under you Nios II Device Drivers project and find out why this function is failing.