Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

flash programming

Hi guys,

I'm working on my DE0 dev kit and I'm trying to program my flash

it's the standard spansion S29AL032D flash like in the DE1, only here I have the option to work in 16 bit mode

so here's the thing, I have a working example of the flash as part of an exapmle nios system and it worked fine, when I copied the flash part of the design to mine it didn't work

I double checked the assignments and the timing of the IP and couldn't find the problem :

when I try the flash programmer it says

--- Quote Start ---

No CFI table found at address 0x02400000

--- Quote End ---

ummmm help? :

2 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    Hi

    Assign the base address of the Flash to 0x0000000 and lock the base address for CFI flash

    This will solve the problem

    Same issue was reported and solution was given in the "userguide for flash programmer"

    regards

    M Kalyansrinivas
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    15 years ago

    Hi,

    I had the same problem and, after a reading to the flash device datasheet (S29AL032D) at page 10, what worked for me was the following pin assignment:

    address_to_the_cfi_flash_0[21] PIN_P3 (to pin A20 of the Flash)

    address_to_the_cfi_flash_0[20] PIN_P1 (to pin A19 of the Flash)

    address_to_the_cfi_flash_0[19] PIN_M6 (to pin A18 of the Flash)

    address_to_the_cfi_flash_0[18] PIN_M5 (to pin A17 of the Flash)

    address_to_the_cfi_flash_0[17] PIN_AA2 (to pin A16 of the Flash)

    address_to_the_cfi_flash_0[16] PIN_L6 (to pin A15 of the Flash)

    address_to_the_cfi_flash_0[15] PIN_L7 (to pin A14 of the Flash)

    address_to_the_cfi_flash_0[14] PIN_M1 (to pin A13 of the Flash)

    address_to_the_cfi_flash_0[13] PIN_M2 (to pin A12 of the Flash)

    address_to_the_cfi_flash_0[12] PIN_M3 (to pin A11 of the Flash)

    address_to_the_cfi_flash_0[11] PIN_N1 (to pin A10 of the Flash)

    address_to_the_cfi_flash_0[10] PIN_N2 (to pin A9 of the Flash)

    address_to_the_cfi_flash_0[9] PIN_P2 (to pin A8 of the Flash)

    address_to_the_cfi_flash_0[8] PIN_M4 (to pin A7 of the Flash)

    address_to_the_cfi_flash_0[7] PIN_M8 (to pin A6 of the Flash)

    address_to_the_cfi_flash_0[6] PIN_N6 (to pin A5 of the Flash)

    address_to_the_cfi_flash_0[5] PIN_N5 (to pin A4 of the Flash)

    address_to_the_cfi_flash_0[4] PIN_N7 (to pin A3 of the Flash)

    address_to_the_cfi_flash_0[3] PIN_P6 (to pin A2 of the Flash)

    address_to_the_cfi_flash_0[2] PIN_P5 (to pin A1 of the Flash)

    address_to_the_cfi_flash_0[1] PIN_P7 (to pin A0 of the Flash)

    address_to_the_cfi_flash_0[0] virtual pin

    where pin A21 of the flash device is not used (in the DE0 board it is connected to PIN_R2 of the Cyclone III FPGA) and address_to_the_cfi_flash_0[0] , coming from the FPGA, is not connected to the Flash.

    Regards,

    Michele