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SPI FLASH (NexFlash NX25P40 or ST 25P40)

 
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cfernandez



Joined: 18 Oct 2003
Posts: 145

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SPI FLASH (NexFlash NX25P40 or ST 25P40)
PostPosted: Mon Aug 01, 2005 11:18 am     Reply with quote

Hi,

I need to know if somebody use this flash memory and which is your opinion?, and if know where found the code library for this.

I have another question, Is possible write only one Byte without read the page or I have to read the page (256 bytes), then modify the byte and then write the page complete.?????

Thank you very much!!
mp3fusion



Joined: 13 Dec 2004
Posts: 7

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PostPosted: Mon Aug 01, 2005 3:08 pm     Reply with quote

I have used the flash memory ... It is really good ... and easy to implement

If you need the driver for it ... just e-mail me at [email protected]

Shortly I am going to put it in the library ...



Farzad
mp3fusion



Joined: 13 Dec 2004
Posts: 7

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consideration about voltage
PostPosted: Mon Aug 01, 2005 3:14 pm     Reply with quote

I also remembered something ... the flash runs at 2.7 to 3.6 volts ...
you have to use a level shifter to change the spi flash output from 5 to 3.6
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