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I have can CF Microcontroller from Silabs. Sign up using Email and Password. I mean isnt the flash data non volatile or did I get something wrong?
I use the example functions from the AP for the F Well the copying itself works well I looked up at the flash memory and it saved my data right – If I now disconnect my uC and connect it again in like 5 secs, the data c8051f3340 still there.
Normaly, erasing done by sectors.
Down there I tried to implement the example for the F into my code. You can not just write to it. They c88051f340 erase sectors. Maximum that you can – read from it as from normal memory only if you have NOR flash.
Make sure that memcpy internally use it. To copy my data there I just use memcpy.
I mean there can only be one address 0x?! Now as in the data sheet described I save all the data in between the addresses 0x – 0x Email Required, but never shown.
See datasheet of your microcontroller about their size.
Is there any way? I don’t know why that is???
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Actually you helped me a lot in making progress – I still have some weird problem left. Yea according to the datasheet I need to unlock it there is a procedure described there but how do I pick a destination? I wrote a little Interface which stores Information in the non-volatile flash memory from the uC.
If I call the function like its designed it doesnt work – if I make a global variable to “pass” the function arguments it works Sign up using Facebook. Sign up or log in Sign up using Google. Okay that link to the application note from silabs helped. Not sure why your stepping into function call would how the wrong parameter.
The reason the data disappears after a few seconds, is the power supply capacitor still powers the chip long enough to keep the internal RAM alive. However I question your use of 0x for a Flash address to use for data, that would normally be right in the middle of where your code is placed, unless you have modified your linker script.
You should pick an address toward the top of your flash memory, like 0xF But if you want to write to it, you have to the first of all erase it set all bits to 1. Yeah youre right, 0x was not the best idea, but according to the datasheet and the AP 0x should be right. Toby 1, 10 36