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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Is there any solution? Do you see a response from the device on an oscilloscope? Email Required, but never shown.
M25PVMF6P | STMICROELECTRONICS | DATASHEET
Sign up using M25l64 and Password. Non-volatile memory that is byte erasable. When I remove sector erasing at the start of this example code, software stops writing to SPI.
The response is wrong. Have you got the SPI module configured correctly for phase and polarity? Did you forget to assert the chip select line? Sign up or log in Sign up using Google. Things to check since you have not provided any information:.
M25P64 Datasheet PDF
So, without being able to erase, a write is not very useful. Is there any way to erase only some of them or overwrite them? As Austin said, “flash” is not byte erasable, although if already erased, it is byte writable for “NOR”. Post as a guest Name.
Things to check since you have not provided any information: I store configuration data on the SPI, I cannot erase all the data inside the whole sector. You are sometimes better first of all trying to read the device ID rather than the daatsheet register for a new piece of code.
I did require that before you write new data, you need to erase the old data once programmed, it can catasheet be made back to a ‘1’: Did you remember to datashest a dummy byte after the RDSR command so that the device would send the status register value? Auto-suggest helps you quickly narrow down your search results by suggesting possible matches as you type.
So if you don’t need to overwrite data, you should be able to do byte writes. Abhay 30 2 8. Is the response I have obtained is it right?
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I datasgeet the datasheet as well, but I couldnt find a solution for automatic erasing only the data I overwrite. Does your SPI code work with any other devices? Is this a new piece of SPI code? The reason for that is the device ID will never change, whereas the status register might change although that depends on the device. But this example code does not work without erasing first.