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Hi jimmy,

- I don't have now access to the code, maybe tomorrow, but it was very simple: I just took the atmel driver from u-boot (or linux I'm not sure, but probably from u-boot source).
I also did some very minor changes just to fit into the frame of the spi-flash-writer (not any important change). You should also be aware of the 512/528 bytes issue. When I first tried to flash the Atmel flash it seemed that flashing was done well, but the booting failed. I then figured out that it is becuase the flash came as 528 bytes per page from factory. 

- I added simple command at start of flash to convert it to 512 bytes per page. That is maybe the only "important" adding to code, I have made. If your flash is 512bytes then you won't need such anyway.

- Are you working with the updated sdk from TI ? Isn't there still support for the atmel in the spi-flash-writer ? 

Bye,

Ran

Hi Ran:

We have solved the problems and now we can programme AT45DB321D and boot from it. The following is what I have done:

1. Configure the page size of AT45DB321D-SU to 512 bytes; then did a power cycle;

2. Modified spi-falsh-writer to support AT45DB321D.

Thank you very much for your help!

Best regards,

Jimmy

Mr. Zhang, could you give modified version of spi-falsh-writer (with support of AT45DB321D)?

My e-mail: dtp-avb@yandex.ru

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Thanks at advance.

8357.dsp_spi_flash_writer.zipHi Alexander:

1. Configure the page size of AT45DB321D to 512 bytes. The default page size is 528 bytes. You need to configure the page size to 512 bytes. I added the following code in “main.c” of SPI Flash Writer. You need to uncomment the following code in “main.c” the first time.

    /*The follow code is to config the page size of AT45DB321D to 512 Byte.*/

//    Uint8 config_cmd[4] = { 0x3d, 0x2a, 0x80, 0xa6 };

//    ret = spi_xfer(slave, 32, &config_cmd[0], NULL, SPI_XFER_BEGIN);

//    if (ret) {

//          printf("SF: Failed to send config command %02x: %d\n", config_cmd, ret);

//          return ret;

//    }   

//    while(1);    //Added by Jimmy

1. After you build and run the “main.c”, you need to power off the board, then power on the board. Now the page size of AT45DB321D is 512 bytes.
2. Comment the above code.
3. Build and run SPI Flash Writer. The you can program the AT45DB321D following the instructions.

The attachment is the modified driver.  

 Please let me know if the code works.

Best regards,

Jimmy