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CC3200MOD: CC3200MODSF External Flash interface and reference example.

Mubin Quadri
Prodigy 200 points
Part Number: CC3200MOD

Hi TI,

CC3220MODSF has following memory.

1) 1MB on chip flash 

2) 4MB on module flash.

and There is provision for external flash interfacing.

I have understand that how to used on module 4MB flash but my question is that,

1) If I connect external flash on provided pin then I can access it from code? like on module can access by using sl file system.

2) can I used same sl file system for external flash? if yes then How does controller distinguish between on module flash and external flash?

3) If no, then any other option to access it.

4) Any reference example code for external flash with on module flash. (means with both flash).

Thanks & Regards,

Mubin   

  • 0
    Guru 79905 points

    Hi Mubin,

    Module pins FLASH_SPI_ are intended for production programming only. You cannot connect additional SPI flash thi this pins. Access to the SPI flash inside mode is via sl_ filesystem API only. If you need bigger storage you can connect another memory chip to I2C or SPI or use SD card. All control at this storage will be up to you.

    Answers to your questions:

    1. No you can't. If you do this you will have connected two SPI flash chip with same CS and this cannot work.

    2. No.

    3. You cannot connect SPI flash chip to pins FLASH_SPI_ of module.

    4. Is not. Because FLASH_SPI_ pins cannot be used for such purpose.

    Jan

  • 0 in reply to Jan D
    Prodigy 200 points

    Hi Jan,

    Thanks for your reply.

    Regards,

    Mubin