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Altera_Forum
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14 years ago

Parallel Flash memory access failed

Hello, I am designing a simple system with a 4CE40 and a Spansion flash memory (S29GL512 : 64MB in 16bits organisation). But when I make a "hello world" software, it fails at "checking" step. H...
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Altera_Forum
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14 years ago

Hello cyrill.garric,

I have the same problem. But only with quartus 10.1SP1.

I used timing setup: 100ns wait 200ns hold 100ns.

No good result: 


Using cable "USB-Blaster ", device 1, instance 0x00
Resetting and pausing target processor: OK
No CFI table found at address 0x00000000
Original contents (after writing 0xF0 and 0xFF to address 0x00000000):
   0: A8 09 00 04 A8 09 00 04  A8 09 00 04 A8 09 00 04  ................
  10: A8 09 00 04 A8 09 00 04  A8 09 00 04 A8 09 00 04  ................
  20: A8 09 00 04 A8 09 00 04  A8 09 00 04 A8 09 00 04  ................
  30: A8 09 00 04 A8 09 00 04  A8 09 00 04 A8 09 00 04  ................
  40: A8 09 00 04 A8 09 00 04  A8 09 00 04 A8 09 00 04  ................
Contents after writing       0x98 to address 0x000000AA:
    Same after writing     0x0098 to address 0x00000154:
    Same after writing 0x00000098 to address 0x000002A8:
    Same after writing       0x98 to address 0x00000055:
    Same after writing     0x0098 to address 0x000000AA:
    Same after writing 0x00000098 to address 0x00000154:
    Same after writing       0x98 to address 0x00000154:
    Same after writing     0x0098 to address 0x000002A8:
    Same after writing 0x00000098 to address 0x00000550:
   0: A8 09 00 04 A8 09 00 04  A8 09 00 04 A8 09 00 04  ................
  10: A8 09 00 04 A8 09 00 04  A8 09 00 04 A8 09 00 04  ................
  20: A8 09 00 04 A8 09 00 04  A8 09 00 04 A8 09 00 04  ................
  30: A8 09 00 04 A8 09 00 04  A8 09 00 04 A8 09 00 04  ................
  40: A8 09 00 04 A8 09 00 04  A8 09 00 04 A8 09 00 04  ................
Ignored possible autoselect code A8-A8 as no override data
present in section 
Ignored possible autoselect code 09A8-09A8 as no override data
present in section 
Leaving target processor paused

What timing to you use? And is it working now?

Thanks