±1 LSB INL; no missing codes. – Programmable throughput up to ksps. – Up to 17 external inputs; programmable as single-ended or. CF Datasheet PDF Download – Full Speed USB Flash MCU, CF data sheet. Explore the latest datasheets, compare past datasheet revisions, and confirm part lifecycle. Preview and Download. Download Datasheet CF
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See datasheet of your microcontroller about their size. It compiles without problems, but like i already said, it has problems with passing the function parameters Down there I tried to implement the example for the F into my code.
Acording to datasheet of your CPU, to write you have to use special instruction. But if you want to write to it, you have to the first of all erase it set all bits to 1.
I use the example functions from the AP for dtaasheet F Toby 1, 10 36 Based on the code you displayed in your question, you are trying to write to external data xdatawhich is RAM, not non-volatile flash memory.
I mean isnt the flash data non volatile or did I get something wrong? However I datasheeh 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 datasueet your linker script.
Sign up using Facebook. Re your question re the MOVX instruction, the app note says: They called erase sectors.
Yea according to the datasheet I need to unlock it there is a procedure described there but how do I pick a destination? Yeah youre right, 0x was not the catasheet idea, but according to the datasheet and the AP 0x should be right. You can not just write to it. I wrote a little Interface which stores Information in the non-volatile flash memory from the uC.
cf datasheet & applicatoin notes – Datasheet Archive
Actually you helped me a lot in making progress – I still have some weird problem left. Normaly, erasing done by sectors.
Make sure that memcpy internally use it. Maximum that you can – read from it as from normal memory only if you have NOR flash. Sign up using Email and Password. Sign up or log in Sign up using Google. Only then you can write to it. To copy my data there I dtaasheet use memcpy.
Okay that link to the application note from silabs helped. Well the copying itself works well I datashset 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 is still there. Post as a guest Name. You should pick an address toward the top of your flash memory, like 0xF If I call the function like its designed it doesnt work – if I make a global variable to “pass” the function arguments it works 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.
Not sure why your stepping into function call would how the wrong parameter.
(PDF) C8051F340 Datasheet download
To write to flash memory, you need to follow a specific protocol to unlock the flash programming circuitry, then c8051t340 the area you will be writing to, and then write the bytes using MOVX instructions as described in Section 12 of the datasheet. Email Required, but never shown. I don’t know why that is??? I have can CF Microcontroller from Silabs.