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Wesley
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SPI EEPROM

I posted this question under another thread, so I opened a new thread.
I would like suggestions for SPI EEPROMs for Booting.
The previous thread only listed I2C

JE_Dialog
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Hello Wesley, : sorry for

Hello Wesley, : sorry for delay in responding. I'll check into that as right now we've only qualifeid the i2C EEPROM and i2c/SPI FLASH. Do you have a particular series or manufacturer in mind and then we can check if it is suitable ? Best regards, JE_Dialog

Matthieu ANTOINE
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Hello,

Hello,

Is the SPI EEPROM M950x0 from ST suitable for the DA14580?

Thanks.
Matthieu

gl_dialog
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Dear Matthieu,

Dear Matthieu,

Thank you for your interest.
At the moment, only the following memories are supported (see page 21 of the application note below):

Memory type Name Memory size Page size
SPI W25X20CL 256 kB 256B
SPI W25X10CL 128 kB 256B
I2C M24M01-R 128kB 256B

In case, you really want to use the SPI EEPROM M950x0, please let me know and I will ask the design team if we can implement it.

You should have a look at this memories application note:
http://support.dialog-semiconductor.com/resource/b-023-interfacing-da145...

Hope this helps,

best regards,

Guillaume.

Matthieu ANTOINE
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Hi,

Hi,

I bought a AT25DN011 from ADESTO which seems not to be different from the Winbond you chose. And it does not work, i.e. I am not able to burn/erase anything on the external flash.

Any idea?

Thanks.
Matt

MHv_Dialog
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Hi Matthieu,

Hi Matthieu,

You will have to modify and rebuild the project flash_programmer.uvproj to reflect the Flash and page size of your specific Flash. The AN-B-023 document in the resources tab of this site specifies the details (section 6.1 specifically).

Please let me know if this works. And I would appreciete the details of the modifications you made to the code. I am hoping to be able to collect information from all sorts of Flash types and add them to the app note. 

Matthieu ANTOINE
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Hi,

Hi,

I will do that.
But it could be a good idea to add support for SPI Flash that can be easily purchased. The Winbond reference is not available from Radiospares/Farnell/Mouser

Matthieu

MHv_Dialog
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Hi Matthieu,

Hi Matthieu,

I completely agree. We had to weigh a lot of parameters up against eachother. We needed a flash chip that was small, energy efficient and cheap. As I mentioned, we are hoping to be able to provide a table of flash eeproms that can be used. The Winbond flash is the one used on our BASIC devkit. 

hrg
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HI

HI
Is Atmel AT25M01 or Microchip 25AA1024 suitable instead of winbond SPI EEPROM.??

Thankyou

JE_Dialog
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Hello hrg, please see table 7

Hello hrg, please see table 7 and 8 in the following document for supported memory.

BR JE_Dialog

http://support.dialog-semiconductor.com/system/files/resources/AN-B-023%20-%20DA14580%20interfacing%20with%20external%20memory%20v1%201_0.pdf

 

hrg
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HI JE_Dialog

HI JE_Dialog

The availability of Winbond chips are rare ,so will Atmel SPI flash substitues it ?> because both seems to be same in configuration !

JE_Dialog
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Hello hrg, thankyou. We have

Hello hrg, thankyou. We have not had a chance to test all the different FLASH memory : i can suggest that yes, on paper, if it has identical specs and format, it should work, but you will need to test that thoroughly.

BR JE_Dialog

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