View M25P64 datasheet from Micron Technology Inc. at Digikey. M25PVME6TG TR Micron Technology Inc. | M25PVME6TGCT-ND Digi- Key Part Number, M25PVME6TGCT-ND HTML Datasheet, M25P M25P64 64Mbit, Low Voltage, Serial Flash Memory With 50 MHz SPI Bus Interface 64Mbit of Flash Memory Page Program (up to Bytes) in ms ( typical).

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Email Required, but never shown. Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type. Sign up or log in Sign up using Google. Do you see a response from the device on an oscilloscope? Things to check since you have not datasheer any information:.

Actually example code runs great as m25p4. The reason for that is the device ID will never change, whereas the status register might change although that depends on the device. Did you remember to send a dummy byte after the RDSR command so that the device would send the status register value?

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As Austin said, “flash” is not byte erasable, although if already erased, it is byte writable for “NOR”. Is this a dataseet piece of SPI code?

Solved: M25P64 SPI Write Problem – Community Forums

I can use Impact to write and read the code successfully, it works great. Does your SPI code work with any other devices? Sign up using Facebook. This Wikipedia page explains flash memory fairly well. Did you forget to assert the chip select line? Non-volatile memory that is byte erasable. By using our site, you acknowledge that you have read and understand our Cookie PolicyPrivacy Policyand our Terms of Service.

Is there any way to erase only some of them or overwrite them? It’s the definitive way to be sure.

There is no single byte erase. All forum topics Previous Topic Next Topic. If so have you checked with an oscilloscope to see what you send out clock and MOSI is what you expect and matches what the datasheet says the device expects? Have you got the SPI module configured correctly for phase and polarity? So my question is “Is the response I have obtained is it right? Post as a guest Name. When I remove sector erasing at the start of this example code, software stops writing to SPI.

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Does the MSP read that value or a different one? I store configuration data on the SPI, I cannot erase all the data inside the whole sector.

M25P64 Datasheet PDF

I did require that before you write new data, you need to erase the old 2m5p64 once programmed, it can not be made back to a ‘1’: Is there any solution? You are sometimes better first of all trying to read the device ID rather than the status register for a new piece of code.

So if you don’t need to overwrite data, you should datashewt able to do byte writes. By clicking “Post Your Answer”, you acknowledge that you have read our updated terms of serviceprivacy policy and cookie policyand that your continued use of the website is subject to these policies. But this example code does not work without erasing first. I’m using ISE The response is wrong. Abhay 30 2 8. Things to check since you have not provided any information: