Search found 10 matches

by ramimo
Fri Jul 28, 2017 7:09 pm
Forum: General discussion
Topic: Reading "User data storage option bytes"?
Replies: 15
Views: 289

Re: Reading "User data storage option bytes"?

I wanted to write that I am 100% sure that you can't write these bytes without writing the whole page. About the EEPROM: it's definitely worth a try, especially because almost all STM32F103 have 128kb. Nothing for period updates, but good for eg. saving configurations.
by ramimo
Fri Jul 28, 2017 8:45 am
Forum: General discussion
Topic: Reading "User data storage option bytes"?
Replies: 15
Views: 289

Re: Reading "User data storage option bytes"?

I am not a flash expert, but I am 100% sure that you can write these bytes without writing the whole page. It's possible that this specific flash page, with all the important flags, is write protected nomatterwhat, until you set the boot jumpers accordingly. For me, reading these bytes is all I want...
by ramimo
Thu Jul 27, 2017 9:43 pm
Forum: General discussion
Topic: Reading "User data storage option bytes"?
Replies: 15
Views: 289

Re: Reading "User data storage option bytes"?

Just to be a little bit of help:

#define USERDATASTORAGEOPTIONSBYTE1 *((byte*)0x1FFFF804)
#define USERDATASTORAGEOPTIONSBYTE2 *((byte*)0x1FFFF806)

That might be useful for the STM32 Arduino libs. With better naming, of course.

Thanks :)
by ramimo
Thu Jul 27, 2017 7:12 pm
Forum: General discussion
Topic: Reading "User data storage option bytes"?
Replies: 15
Views: 289

Re: Reading "User data storage option bytes"?

@martinayotte, no idea how you can know where that's documented, but thanks!
by ramimo
Thu Jul 27, 2017 2:31 pm
Forum: General discussion
Topic: Reading "User data storage option bytes"?
Replies: 15
Views: 289

Re: Reading "User data storage option bytes"?

@martinayotte I found only some doc about the Demonstrator. No hint where it is stored or if there is a special access method or address on where to find these bytes. @zmemw16: It is funny when some people think that they are the only one who know about Google. Yes, I googled for about 30 minutes. Y...
by ramimo
Thu Jul 27, 2017 12:15 pm
Forum: General discussion
Topic: Reading "User data storage option bytes"?
Replies: 15
Views: 289

Reading "User data storage option bytes"?

Hi,

the STMF1 has two special bytes, called "User data storage option bytes". You can write them with the Flash Loader Demonstrator. That would be highly useful for special versions, at least for me :) Unfortunately, I did not find any hint on how to read these two bytes at runtime. Any ideas?
by ramimo
Fri May 19, 2017 8:35 am
Forum: Off topic
Topic: ESP8266 Sans RF
Replies: 60
Views: 3903

Re: ESP8266 Sans RF

Hi all, I know, this thread is really, _really_ old. I found it while searching for some infos to switch of wifi on a ESP8266. Again, this board had the best result :) I am working on a kinda arty project, involving displays and cameras and whatnot - if I can get it all running. The benchmark result...
by ramimo
Fri Dec 02, 2016 1:28 pm
Forum: Dead Thread Graveyard
Topic: 1.8" TFT screen looks "Funny"..
Replies: 7
Views: 700

Re: 1.8" TFT screen looks "Funny"..

That display has a ST7735 controller. I have a bunch of them on my desk for a project. I use UGCLib instead of Adafruit. They work really nice.
by ramimo
Wed Nov 30, 2016 8:31 am
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: Hello from Germany
Replies: 6
Views: 750

Re: Hello from Germany

I think the German AliExpress site seems to have "German" prices ;-) (i.e they think you can afford more than us impoverished Australians) Nah :) With three kids, money is just a faint idea for us. I buy the cheapest Blue Pills I can get, eg. €1.47 / AUD 2.08 for one (up to 5 w/o additional shippin...
by ramimo
Tue Nov 29, 2016 10:24 am
Forum: New users MUST post here first, and let us know a bit about you and your projects
Topic: Hello from Germany
Replies: 6
Views: 750

Hello from Germany

Hi all! I found this forum while searching for information about the STM32F1. Roger, you did an exceptional work! About me: I code computers since the stone age (1982 or so). My first computer was a Casio PB100 with 544, byte RAM. Then Sinclair Spectrum, Atari ST and more x86 computers than I can co...