Chip signature read

[graziano2]

Posted on August 24, 2010 at 17:46

Chip signature read

[lowpowermcu]

Posted on May 17, 2011 at 15:10

Hi governatori,

I am using STVD. Herzlich, MCU Lüfter

[graziano2]

Posted on May 17, 2011 at 15:10

Hi!

   I'm using STVD too; when I select      Project --> Settings ...     and I go to MCU selection TAB, if I mistake micro, I receive no warning (except the one that says that will be reset some compiler & linker options).    How can you notice ''detected MCU different from selected one''?    Thanks again for help! Graziano

[lowpowermcu]

Posted on May 17, 2011 at 15:10

Hi governatori,

Perhaps it is an issue of version, try to download the latest one: http://www.st.com/mcu/contentid-44-15-STVD.html MCU Lüfter

[simonqian2]

Posted on May 17, 2011 at 15:10

Check this address: 0x0067f0 for 6 bytes.

It's not chip-id, but the 6-byte value can check the series of STM8.

[graziano2]

Posted on May 17, 2011 at 15:10

Hi!

   That can be a solution, at the end, I only need to read the pin count, so maybe I can find it in these 6 bytes.    My question is, where can I find the information you provided on ST manuals? Where can I find a description of those 6 bytes?    Thanks a lot, have a nice day! Graziano

[brazov22]

Posted on May 17, 2011 at 15:10

Hi Quian,

this information is not present anywhere in STM8S family documents ... the locations you're speaking of are ROM locations, what about same informations for ROM less devices such us STM8S103? brazov2

[simonqian2]

Posted on May 17, 2011 at 15:10

There is no information in formal documents.

I found this because STLink will read data from this address. And value is different for different series of STM8. You can check the signal on SWIM pin while STLink operating STM8. And it's not difficult to find the ROTF command for this address. And you can try to DIY a STLink, and add a debug port to print all the commands called by STVP. Here is the code:

http://code.google.com/p/vsprog/source/browse/trunk/dongle/firmware/STLink/STLink.c

. BTW: STLink's protocol for STM8 is not difficult to analize.